Ocoee, Florida:
https://maps.google.com/maps?ll=28.544174,-81.558455&spn=0.002349,0.003098&t=h&z=19 (https://maps.google.com/maps?ll=28.544174,-81.558455&spn=0.002349,0.003098&t=h&z=19)
Can't figure out why they chose to put a roundabout here.
Flower Mound, Texas;
https://maps.google.com/maps?ll=32.990524,-97.066162&spn=0.006344,0.012392&t=h&z=17 (https://maps.google.com/maps?ll=32.990524,-97.066162&spn=0.006344,0.012392&t=h&z=17)
The northern one had a street attached recently, but was a non-intersection roundabout for a long time.
The next one down looks like they might be attaching a street to it.
I really don't like these because they are two-lane roundabouts without proper pavement markings or signage, which could lead to an accident.
I know we had this thread a few years ago.
Lorton, Virginia, near Laurel Hill Golf Club. I assume the intent was to extend the one road someday.
https://www.google.com/maps/@38.7233373,-77.2493012,782m/data=!3m1!1e3
Edited to add:
Eisenhower Avenue at Holland Lane in Alexandria, Virginia, near the Patent and Trademark Office, is another fairly pointless one. While this roundabout does have a street providing a third leg off the roundabout, that street gets very little traffic and it probably would have made more sense just to make Eisenhower to Holland (and vice versa) a regular thru movement with the third leg just having a stop sign. More than 95% of the traffic through the roundabout connects between Eisenhower and Holland. (I have the labels turned off....if they don't display for you, Eisenhower is the street to the left of the roundabout and Holland is the street off the top of the roundabout. Extending Eisenhower east is not an option due to the cemetery. The label on the map referring to the black cemetery refers to a one-acre plot with graves from the 1800s. I don't know whether it was a slave cemetery, but the slave market was less than a mile to the northeast of there on Duke Street.)
https://www.google.com/maps/@38.8008523,-77.0588736,835m/data=!3m1!1e3
Reed Market Rd. in Bend: https://www.google.com/maps/@44.0407335,-121.3278429,203m/data=!3m1!1e3
Used solely for the purpose of turning around (for people leaving Farewell Bend Park heading East).
Quote from: Brian556 on February 24, 2015, 12:39:12 PM
Flower Mound, Texas;
https://maps.google.com/maps?ll=32.990524,-97.066162&spn=0.006344,0.012392&t=h&z=17 (https://maps.google.com/maps?ll=32.990524,-97.066162&spn=0.006344,0.012392&t=h&z=17)
The northern one had a street attached recently, but was a non-intersection roundabout for a long time.
The next one down looks like they might be attaching a street to it.
I really don't like these because they are two-lane roundabouts without proper pavement markings or signage, which could lead to an accident.
It appears from satellite view that the ROW has already been cleared for a street shooting off to the west from the southern one. I'd say it's likely that was the intent for both of them from the beginning.
I agree that proper lane striping on multi-lane roundabouts is crucial.
- Great for extending roads in the future without having to build a brand new intersection later
- Easy way to slow traffic
- Great place to U-turn when roads are separated by a hard median
They seem pointless, but they have a use.
Quote from: Brian556 on February 24, 2015, 12:39:12 PM
I really don't like these because they are two-lane roundabouts without proper pavement markings or signage, which could lead to an accident.
Sometimes drivers, when faced with a "hairy" situation, become more cautious. I would be surprised if more accidents occur at the Flower Mound intersection than a typical painted roundabout.
NY-55 has some for store driveways between Pawling and Poughkeepsie.
Quote from: doofy103 on February 24, 2015, 07:48:06 PM
NY-55 has some for store driveways between Pawling and Poughkeepsie.
So I don't recall there being any last time I drove it but I just looked at Street View and wow. LaGrangeville just got a massive overhaul.
The area in question is here (https://www.google.com/maps/@41.6707446,-73.8021342,16z). Formerly, each of these roundabouts was a signalized intersection (including the one that only serves two shopping mall driveways). One more former signalized intersection was cut off with the side street rerouted to meet a nearby roundabout and the remainder converted to a dead end. Meanwhile NY 55 now has a hard landscaped median along this stretch that cannot be crossed except at said roundabouts. All this has also accompanied a drop in the local speed limit from 40 to 35.
I suppose the idea here is:
1) Keep traffic moving because no more red lights to wait at
2) Calm traffic so no one can go flying through because roundabouts make them slow down
3) Increase safety
The level of traffic calming involved seems to me to be a bit overboard for an area that's not urban and doesn't have much pedestrian traffic, but then I don't know what the accident rate in that area was prior to this project, maybe it was abnormally high. Or maybe they just wanted to plant flowers in the median to make it look fancy.
http://goo.gl/maps/G56EW
At the Fort Dix base in NJ. Previously a normal circle with 4 legs to it, the SW leg was removed completely, and the SE leg is barricaded from use.
Found the following roundabout on Google Maps. No idea why it's there.
https://www.google.com/maps/@38.7463204,-77.1883667,414m/data=!3m1!1e3
Probably a lot like when streets are constructed with driveway stubs, or freeways are built with ramp stubs too years before the connector is ever built.
Quote from: jeffandnicole on March 04, 2015, 03:18:40 PM
http://goo.gl/maps/G56EW
At the Fort Dix base in NJ. Previously a normal circle with 4 legs to it, the SW leg was removed completely, and the SE leg is barricaded from use.
and to stay on 616 you have to go way out of the way
Quote from: 1995hoo on March 04, 2015, 03:26:55 PM
Found the following roundabout on Google Maps. No idea why it's there.
https://www.google.com/maps/@38.7463204,-77.1883667,414m/data=!3m1!1e3
That looks like a bus stop on the curb there. Perhaps the roundabout is there to make it easier for busses to turn around?
There was once a useless roundabout in South Bend, where High St. from the north intersected with the unnamed drive to the east:
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi62.tinypic.com%2F52yhbd.png&hash=4e9341fb3e4ec0f9faf7f81cb9823299467cdc0e)
It was about where I've drawn the red circle at Menards front door. It was a Zayre's discount store when Erskine Plaza shopping center was built. They ripped out the roundabout to build the SC.
When cutting through from Ireland Road to snag an Arby's RB, I was known run the wrong way around the little-used roundabout to save a couple of seconds, until I met someone going the other way one day. There was no collision, but I had learned my lesson.
https://www.google.com/maps/@38.8704552,-76.8512512,614m/data=!3m1!1e3
Here's a two leg roundabout that acts like a Michigan Left. Drivers traveling WB on Alaking CT make a right on Hampton Park Blvd before making a u-turn at the roundabout to continue SB Hampton Park Blvd.
Md. 32 at Fort George G. Meade in Anne Arundel County has an interesting interchange for National Security Agency employees to access from eastbound side of the freeway here (https://maps.google.com/maps?q=fort+meade&ll=39.100975,-76.7695&spn=0.006436,0.011555&cid=8364810788091885085&hnear=Fort+Meade,+Anne+Arundel+County,+Maryland&t=h&z=17).
Quote from: tradephoric on March 04, 2015, 07:38:24 PM
https://www.google.com/maps/@38.8704552,-76.8512512,614m/data=!3m1!1e3
Here's a two leg roundabout that acts like a Michigan Left. Drivers traveling WB on Alaking CT make a right on Hampton Park Blvd before making a u-turn at the roundabout to continue SB Hampton Park Blvd.
See, now, to me, that just looks like a glorified crossover. That type of modified Michigan left isn't all that uncommon in less developed nations where full interchanges aren't in the budget.
^^ Actually, I'm going to take that back. All the examples I could think of are grade-separated. Much rarer are ones that functioned like a true Michigan left in that traffic would have to go through the intersection from the other direction.
Below is a list of some odd roundabouts along a 38-km stretch of highway in Escuintla, Guatemala; note how most of them effectively function as glorified crossovers:
Non-intersection roundabout: http://goo.gl/maps/X4lfP (http://goo.gl/maps/X4lfP)
Hybrid superstreet/dogbone: http://goo.gl/maps/ClWaO (http://goo.gl/maps/ClWaO)
Hybrid superstreet/dogbone: http://goo.gl/maps/TPxfm (http://goo.gl/maps/TPxfm)
Non-intersection roundabout: http://goo.gl/maps/1GlPC (http://goo.gl/maps/1GlPC) (factory entrance?)
Non-intersection roundabout: http://goo.gl/maps/gJXYI (http://goo.gl/maps/gJXYI)
Non-intersection roundabout: http://goo.gl/maps/OeCet (http://goo.gl/maps/OeCet)
Non-intersection roundabout: http://goo.gl/maps/rJiOk (http://goo.gl/maps/rJiOk)
I have seen some in places where the roundabouts act as speed breakers as some neighborhoods would install them to keep people at 25 mph. Remember we live in an era where the average driver thinks that a speed limit is 10 to 15 miles more over the limit, so 55 means 65-70, so in some areas they need to have some way of getting the people to follow the maximum speed literally.
^^ Are those roundabouts installed at intersections? If so, then its (a) fairly common and (b) not what this thread is about.
Quote from: kphoger on March 05, 2015, 03:17:52 PM
^^ Are those roundabouts installed at intersections? If so, then its (a) fairly common and (b) not what this thread is about.
He's probably thinking of something like this: http://goo.gl/F8BqP1 (Staniland Drive, Weybridge, Surrey, England).
Quote from: kphoger on March 04, 2015, 11:14:32 PM
Quote from: tradephoric on March 04, 2015, 07:38:24 PM
https://www.google.com/maps/@38.8704552,-76.8512512,614m/data=!3m1!1e3
Here's a two leg roundabout that acts like a Michigan Left. Drivers traveling WB on Alaking CT make a right on Hampton Park Blvd before making a u-turn at the roundabout to continue SB Hampton Park Blvd.
See, now, to me, that just looks like a glorified crossover. That type of modified Michigan left isn't all that uncommon in less developed nations where full interchanges aren't in the budget.
I'm pretty much wrong. There is no Michigan Left to speak of in my example. Alaking CT looks more like a superstreet as drivers are forced to turn right to go left but instead of a signalized intersection for the crossover, a roundabout is used.
Quote from: kphoger on March 05, 2015, 03:17:52 PM
^^ Are those roundabouts installed at intersections? If so, then its (a) fairly common and (b) not what this thread is about.
No they are not. That is why I posted them here. If they were they would not be speed breakers as I meant to point out that a non intersection roundabout is used in residential areas for the purpose I mentioned.
No they are not that common, or at least as I have seen.
And yes the thread is about non intersection roundabouts.
Edit:Actually there is one in Orlando in a business park off Challenger Parkway at the end of a dead end street. There are no other intersecting roads, but a couple of driveways leading in to it at the end for two separate office building parking areas.
Quote from: tradephoric on March 05, 2015, 06:13:52 PM
Quote from: kphoger on March 04, 2015, 11:14:32 PM
Quote from: tradephoric on March 04, 2015, 07:38:24 PM
https://www.google.com/maps/@38.8704552,-76.8512512,614m/data=!3m1!1e3
Here's a two leg roundabout that acts like a Michigan Left. Drivers traveling WB on Alaking CT make a right on Hampton Park Blvd before making a u-turn at the roundabout to continue SB Hampton Park Blvd.
See, now, to me, that just looks like a glorified crossover. That type of modified Michigan left isn't all that uncommon in less developed nations where full interchanges aren't in the budget.
I'm pretty much wrong. There is no Michigan Left to speak of in my example. Alaking CT looks more like a superstreet as drivers are forced to turn right to go left but instead of a signalized intersection for the crossover, a roundabout is used.
New question though: Why are the hashmarks/chevrons paints both to the left? On one side of the roundabout, motorists will find >, while on the other side motorists will find <.
http://goo.gl/maps/UW2pG (http://goo.gl/maps/UW2pG) Has been like this for 6 years now.
http://goo.gl/maps/YC5n5 (http://goo.gl/maps/YC5n5) Got a third connection a year ago or so, but a new roundabout like this one was built at the end of the new connection.
Quote from: jeffandnicole on March 06, 2015, 06:25:17 AM
Quote from: tradephoric on March 05, 2015, 06:13:52 PM
Quote from: kphoger on March 04, 2015, 11:14:32 PM
Quote from: tradephoric on March 04, 2015, 07:38:24 PM
https://www.google.com/maps/@38.8704552,-76.8512512,614m/data=!3m1!1e3
Here's a two leg roundabout that acts like a Michigan Left. Drivers traveling WB on Alaking CT make a right on Hampton Park Blvd before making a u-turn at the roundabout to continue SB Hampton Park Blvd.
See, now, to me, that just looks like a glorified crossover. That type of modified Michigan left isn't all that uncommon in less developed nations where full interchanges aren't in the budget.
I'm pretty much wrong. There is no Michigan Left to speak of in my example. Alaking CT looks more like a superstreet as drivers are forced to turn right to go left but instead of a signalized intersection for the crossover, a roundabout is used.
New question though: Why are the hashmarks/chevrons paints both to the left? On one side of the roundabout, motorists will find >, while on the other side motorists will find <.
They shouldn't be chevrons, but rather slanted lines.
I imagine they are there to try to dissuade vehicles in the outer circulating lane from proceeding past the turnoff. The width of the circle at that point is two lanes, but should only be one lane wide.
Lacey, Washington ... I always thought it was strange that they built the sidewalks around the intersection as though there was never any plans to connect any other roads.
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2Fv4F0LIJ.png&hash=a438f1e426c0a69cfb5d5ed4aaab28cf60296acc)
They've since built the road on the south/west side, but it's barred off to traffic so the intersection is still basically a non-intersection.
Cambridge St, Epping. This roundabout is there so that buses which terminate at the bus terminus to the south are able to U-turn and continue the other way.
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FAm7BxoD.jpg&hash=02a947d766f4ee6bf87dd4355e2b89a8abe26cd6)
http://goo.gl/maps/QMF9s (http://goo.gl/maps/QMF9s)
Found two within a relatively short distance: https://www.google.com/maps/@37.0450581,-76.4626862,385m/data=!3m1!1e3 (https://www.google.com/maps/@37.0450581,-76.4626862,385m/data=!3m1!1e3)
The smaller one at the school is used for student pickup and drop-off. I'm not exactly sure what the larger one (along Green Ct) is for.
Quote from: Thing 342 on March 07, 2015, 09:29:50 PM
I'm not exactly sure what the larger one (along Green Ct) is for.
To allow more houses to cram into the outside of the curve. If you look at street view, it's not actually one-way.
Quote from: Thing 342 on March 07, 2015, 09:29:50 PM
Found two within a relatively short distance: https://www.google.com/maps/@37.0450581,-76.4626862,385m/data=!3m1!1e3 (https://www.google.com/maps/@37.0450581,-76.4626862,385m/data=!3m1!1e3)
The smaller one at the school is used for student pickup and drop-off.
You can't even call that one at the school a roundabout, it is more like a cul-de-sac... and since it's not even on a real street, let's just call it a circular driveway.
I believe new streets were supposed to pop out of this one, but nothing's happened so far.
https://maps.google.ca/maps?ll=45.33554,-72.641344&spn=0.012972,0.01929&safe=strict&t=m&z=16
Why does it look like something i'd make with sim city 4 with the network addon mod.
Roundabouts like that are also used to overcome a sharp bend where the curvature of the road would normally be below design standards.
Quote from: NE2 on March 07, 2015, 09:41:17 PM
Quote from: Thing 342 on March 07, 2015, 09:29:50 PM
I'm not exactly sure what the larger one (along Green Ct) is for.
To allow more houses to cram into the outside of the curve. If you look at street view, it's not actually one-way.
This makes absolute sense. The alternative is having a "party driveway" where the driveways of two houses combine before collectively reaching the street. Very common where I grew up, but a lot of people don't like them because it means the owners of both houses have to chip in and cooperate on maintaining the shared portion.
The other alternative is building several parallel driveways right next to each other. I guess the circle looks nicer.
1800 Block of West Montebello Avenue (East Of 19th Avenue) Phoenix, AZ
Map
https://www.google.com/maps/@33.519781,-112.098615,3a,75y,126.92h,90t/data=!3m4!1e1!3m2!1sZAt6uRo4PbRtsejRGf3EHQ!2e0 (https://www.google.com/maps/@33.519781,-112.098615,3a,75y,126.92h,90t/data=!3m4!1e1!3m2!1sZAt6uRo4PbRtsejRGf3EHQ!2e0)
Earth
https://www.google.com/maps/@33.519781,-112.098615,300m/data=!3m1!1e3 (https://www.google.com/maps/@33.519781,-112.098615,300m/data=!3m1!1e3)
Montebello runs East and West thru Roundabout
Exit Driveway comes from SouthWest from Bus Transit Center into Roundabout
Entry/Exit from Park and Ride from SouthEast into Roundabout
Entry/Exit from Super Target/Christown Spectrum Mall from North into Roundabout
Quote from: mapman1071 on March 17, 2015, 04:26:44 PM
1800 Block of West Montebello Avenue (East Of 19th Avenue) Phoenix, AZ
Map
https://www.google.com/maps/@33.519781,-112.098615,3a,75y,126.92h,90t/data=!3m4!1e1!3m2!1sZAt6uRo4PbRtsejRGf3EHQ!2e0 (https://www.google.com/maps/@33.519781,-112.098615,3a,75y,126.92h,90t/data=!3m4!1e1!3m2!1sZAt6uRo4PbRtsejRGf3EHQ!2e0)
Earth
https://www.google.com/maps/@33.519781,-112.098615,300m/data=!3m1!1e3 (https://www.google.com/maps/@33.519781,-112.098615,300m/data=!3m1!1e3)
Montebello runs East and West thru Roundabout
Exit Driveway comes from SouthWest from Bus Transit Center into Roundabout
Entry/Exit from Park and Ride from SouthEast into Roundabout
Entry/Exit from Super Target/Christown Spectrum Mall from North into Roundabout
Um... an intersection between a street and a parking lot entrance is still an intersection.
A random 2-leg roundabout in Bend, Oregon.
https://maps.google.com/maps?ll=44.041045,-121.327955&spn=0.000612,0.001563&t=h°=270&z=20
Here's a roundabout with zero legs...for cars. The roundabout is on a golfcart path in The Villages, FL:
http://goo.gl/maps/fwRAl
GSV: http://goo.gl/maps/hU4wy
https://goo.gl/maps/8Qx9a
A circle/roundabout that just goes around a few trees. Take it out of GSV and you can't even see the road due to the tree coverage.
Quote from: jeffandnicole on April 01, 2015, 10:08:38 AM
https://goo.gl/maps/8Qx9a
A circle/roundabout that just goes around a few trees. Take it out of GSV and you can't even see the road due to the tree coverage.
That's a median, not a roundabout.
https://maps.google.com/?ll=53.718146,-2.674098&t=k&z=16
Quote from: yakra on April 09, 2015, 09:55:08 AM
http://maps.google.com/?ll=53.718146,-2.674098&t=k&z=16
It's partly closed (though that part would have been useful for the park and ride).
Quote from: NE2 on April 01, 2015, 11:39:16 AM
Quote from: jeffandnicole on April 01, 2015, 10:08:38 AM
https://goo.gl/maps/8Qx9a
A circle/roundabout that just goes around a few trees. Take it out of GSV and you can't even see the road due to the tree coverage.
That's a median, not a roundabout.
I'll politely disagree. It's pretty much a circle from the aerial, and it allows people to make a U-turn. Ergo, it is a mid-block roundabout, not a median.
There's no signage telling entering traffic to yield. Thus it's a median.
Quote from: Brandon on April 09, 2015, 12:31:57 PM
Quote from: NE2 on April 01, 2015, 11:39:16 AM
Quote from: jeffandnicole on April 01, 2015, 10:08:38 AM
https://goo.gl/maps/8Qx9a
A circle/roundabout that just goes around a few trees. Take it out of GSV and you can't even see the road due to the tree coverage.
That's a median, not a roundabout.
I'll politely disagree. It's pretty much a circle from the aerial, and it allows people to make a U-turn. Ergo, it is a mid-block roundabout, not a median.
Google Maps does show the "roundabout" as having its own name: Bernan Circle.
Roundabout/Crossover hybrid?
Maybe there's some sort of history behind why this circle was put there. On the other side of the Turnpike it appears Whitford Dr would intersect directly into this circle, rather than end as a cal de sac. But, it's definitely an unusual feature for a road or development here, and certainly doesn't appear to be just a 'median'.
This roundabout used to be a cul-de-sac IIRC: https://www.google.com/maps/@36.6882337,-75.9230056,143m/data=!3m1!1e3
I think the intent was to allow non-park traffic to turn around, but many people just ignore the pavement markings.
I think this was originally a driveway circle for the historical marker nearby, and Battlefield Tour Road was built later: https://www.google.com/maps/@37.2076368,-76.5039399,288m/data=!3m1!1e3
Quote from: Thing 342 on April 12, 2015, 09:27:06 PM
This roundabout used to be a cul-de-sac IIRC: https://www.google.com/maps/@36.6882337,-75.9230056,143m/data=!3m1!1e3
I think the intent was to allow non-park traffic to turn around, but many people just ignore the pavement markings.
That's pretty cool. I like mini roundabouts. Only problem I see is that they signed the roundabout as a "traffic circle" with a yellow square sign with the circulatory shape on it, when it should be a square white sign with the circulatory shape on it, sans any additional signs.
Sorry to bump this ancient thread, but it seems like the best place for this to go.
This roundabout is a great candidate for this thread. It was obviously destined to be an intersection but I guess the extensions of the two road never ultimately came to be. It bothers me how useless it is. Both the city of Columbia and MoDOT looove roundabouts, and whichever of them built this must have insisted on it.
https://www.google.com/maps/@38.9012241,-92.3275445,305m/data=!3m1!1e3 (https://www.google.com/maps/@38.9012241,-92.3275445,305m/data=!3m1!1e3)
Scusset Beach Rd., Bourne, MA. Its intent is to allow you to turn around, since there's a paid parking lot ahead.
https://www.google.com/maps/@41.7759701,-70.5225012,17.68z (https://www.google.com/maps/@41.7759701,-70.5225012,17.68z)
Quote from: Brian556 on February 24, 2015, 12:39:12 PM
Ocoee, Florida:
https://maps.google.com/maps?ll=28.544174,-81.558455&spn=0.002349,0.003098&t=h&z=19 (https://maps.google.com/maps?ll=28.544174,-81.558455&spn=0.002349,0.003098&t=h&z=19)
Can't figure out why they chose to put a roundabout here.
Missed this thread the first time around but since it got bumped I noticed it this time around.
I'm gonna take a guess as to why a roundabout got put here. My guess is that there was a recurring problem with northbound cars cutting the corner on the curve and causing head on collisions. The roundabout eliminates that.
Quote from: Thing 342 on April 12, 2015, 09:27:06 PM
I think this was originally a driveway circle for the historical marker nearby, and Battlefield Tour Road was built later: https://www.google.com/maps/@37.2076368,-76.5039399,288m/data=!3m1!1e3
The opposite, actually. The tour road was there first, with the parking lot off the northwest side of it, closer to the monument. Was changed to the current configuration in the 1970s.
I wouldn't call it a roundabout, though I guess it does technically function as one, albeit one with parking along it.
I'm not sure if this would fit the spirit of the thread, but these (https://www.google.com/maps/@43.1839239,-77.4889349,3a,23y,8.98h,86.67t/data=!3m6!1e1!3m4!1s1xIw3pKH_dRHPNxVvwqmHw!2e0!7i13312!8i6656!5m1!1e1) are somewhat common in residential neighborhoods around here. (And they're annoying as all get out, I might add, because it's even harder to get around them without braking than it is a standard speed bump...! :-/) I'd be curious to know if these are common elsewhere.
Quote from: webny99 on September 07, 2021, 10:48:29 AM
I'm not sure if this would fit the spirit of the thread, but these (https://www.google.com/maps/@43.1839239,-77.4889349,3a,23y,8.98h,86.67t/data=!3m6!1e1!3m4!1s1xIw3pKH_dRHPNxVvwqmHw!2e0!7i13312!8i6656!5m1!1e1) are somewhat common in residential neighborhoods around here. (And they're annoying as all get out, I might add, because it's even harder to get around them without braking than it is a standard speed bump...! :-/) I'd be curious to know if these are common elsewhere.
They are calming devices, and if you're needing to hit the brakes they're working as they should (albeit maybe poorly marked).
I certainly don't recall seeing something specifically like this around here.
Quote from: jeffandnicole on September 07, 2021, 11:08:15 AM
Quote from: webny99 on September 07, 2021, 10:48:29 AM
I'm not sure if this would fit the spirit of the thread, but these (https://www.google.com/maps/@43.1839239,-77.4889349,3a,23y,8.98h,86.67t/data=!3m6!1e1!3m4!1s1xIw3pKH_dRHPNxVvwqmHw!2e0!7i13312!8i6656!5m1!1e1) are somewhat common in residential neighborhoods around here. (And they're annoying as all get out, I might add, because it's even harder to get around them without braking than it is a standard speed bump...! :-/) I'd be curious to know if these are common elsewhere.
They are calming devices, and if you're needing to hit the brakes they're working as they should (albeit maybe poorly marked).
I certainly don't recall seeing something specifically like this around here.
Yes, I know they're a calming device, but no, that does not mean you should have to hit the brakes. Speed bumps/humps are calming devices too, and I rarely if ever need to hit the brakes for those. Like I said, these things are worse than speed bumps - they're simply too narrow on each side to safely navigate without slowing
way down.
I'll have to start paying closer attention to my exact speed next time I use one of them, because I'm sure they're not navigable at the posted limit of 25 mph.
Another instance in which bicycles are a superior form of transportation. ;)
Quote from: webny99 on September 07, 2021, 11:28:19 AMthey're simply too narrow on each side to safely navigate without slowing way down.
That is literally the point of them.
Quote from: webny99 on September 07, 2021, 10:48:29 AM
I'm not sure if this would fit the spirit of the thread, but these (https://www.google.com/maps/@43.1839239,-77.4889349,3a,23y,8.98h,86.67t/data=!3m6!1e1!3m4!1s1xIw3pKH_dRHPNxVvwqmHw!2e0!7i13312!8i6656!5m1!1e1) are somewhat common in residential neighborhoods around here. (And they're annoying as all get out, I might add, because it's even harder to get around them without braking than it is a standard speed bump...! :-/) I'd be curious to know if these are common elsewhere.
I live on a dead end street that people seem to like flying up at 50+ mph. I'd love to see one of these in the middle of my block.
Quote from: deathtopumpkins on September 08, 2021, 08:33:48 AM
Quote from: webny99 on September 07, 2021, 11:28:19 AMthey're simply too narrow on each side to safely navigate without slowing way down.
That is literally the point of them.
The point should be to make people go the speed limit, not to periodically force them to come to close to a complete stop in order to annoy them into taking a different road.
Quote from: vdeane on September 08, 2021, 12:50:57 PM
Quote from: deathtopumpkins on September 08, 2021, 08:33:48 AM
Quote from: webny99 on September 07, 2021, 11:28:19 AMthey're simply too narrow on each side to safely navigate without slowing way down.
That is literally the point of them.
The point should be to make people go the speed limit, not to periodically force them to come to close to a complete stop in order to annoy them into taking a different road.
But roundabouts already do this, just at intersections. I don't see why putting them mid-block is necessarily a huge deal in neighborhood settings where, frankly, 15-20 is really the fastest anyone should be going.
Quote from: jakeroot on September 08, 2021, 01:35:16 PM
Quote from: vdeane on September 08, 2021, 12:50:57 PM
Quote from: deathtopumpkins on September 08, 2021, 08:33:48 AM
Quote from: webny99 on September 07, 2021, 11:28:19 AMthey're simply too narrow on each side to safely navigate without slowing way down.
That is literally the point of them.
The point should be to make people go the speed limit, not to periodically force them to come to close to a complete stop in order to annoy them into taking a different road.
But roundabouts already do this, just at intersections. I don't see why putting them mid-block is necessarily a huge deal in neighborhood settings where, frankly, 15-20 is really the fastest anyone should be going.
Roundabouts are an alternative to signals or stop signs, not to nothing.
I will also say that if Waze has any possibility of routing you down a particular street to avoid congestion (this is not one of them), that street should not have residential traffic calming.
Quote from: jakeroot on September 08, 2021, 01:35:16 PM
Quote from: vdeane on September 08, 2021, 12:50:57 PM
Quote from: deathtopumpkins on September 08, 2021, 08:33:48 AM
Quote from: webny99 on September 07, 2021, 11:28:19 AMthey're simply too narrow on each side to safely navigate without slowing way down.
That is literally the point of them.
The point should be to make people go the speed limit, not to periodically force them to come to close to a complete stop in order to annoy them into taking a different road.
But roundabouts already do this, just at intersections. I don't see why putting them mid-block is necessarily a huge deal in neighborhood settings where, frankly, 15-20 is really the fastest anyone should be going.
The posted limit is actually 25 mph, as it is on almost all residential neighborhoods in this area. These are also
much tighter than a regular roundabout - you can even see that one of the residents has placed rocks around this particular one to avoid people driving on their lawn. Like I said, next time I use one I'm going to pay attention to whether it's navigable at 25 mph or even 20 mph, because I don't think it is.
Quote from: 1 on September 08, 2021, 02:09:02 PM
Roundabouts are an alternative to signals or stop signs, not to nothing.
I will also say that if Waze has any possibility of routing you down a particular street to avoid congestion (this is not one of them), that street should not have residential traffic calming.
Yeah, that's why I compared it to speed humps, since both are specifically for traffic calming and not used at intersections.
To your point about routes that can be used to avoid congestion, you'd probably have an issue with
this road (https://www.google.com/maps/@43.1408971,-77.4941581,3a,24.4y,13.29h,87.27t/data=!3m7!1e1!3m5!1seX03qDIBP6Z0oDzOMzqX8w!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fpanoid%3DeX03qDIBP6Z0oDzOMzqX8w%26cb_client%3Dmaps_sv.tactile.gps%26w%3D203%26h%3D100%26yaw%3D43.263924%26pitch%3D0%26thumbfov%3D100!7i13312!8i6656), which has
seven speed bumps despite being used by through traffic. There's not a lot of congestion in this area, but this road is heavily used as a local cut-through, and it's also
a good alternate to Five Mile Line Road (https://www.google.com/maps/dir/Scribner+Rd+%26+Atlantic+Avenue,+Penfield,+NY/East+Rochester,+NY/@43.1310383,-77.5193101,13.25z/data=!4m14!4m13!1m5!1m1!1s0x89d6cb9106872d9b:0x8a552c18f1a05cc6!2m2!1d-77.4848308!2d43.1535471!1m5!1m1!1s0x89d6cb482c6dbf97:0x9babf26bb7f1cac6!2m2!1d-77.4874959!2d43.1086741!3e0) at rush hour when Five Mile Line inevitably backs up at NY 441 (as shown in the link at the time of this post).
Quote from: 1 on September 08, 2021, 02:09:02 PM
Quote from: jakeroot on September 08, 2021, 01:35:16 PM
Quote from: vdeane on September 08, 2021, 12:50:57 PM
Quote from: deathtopumpkins on September 08, 2021, 08:33:48 AM
Quote from: webny99 on September 07, 2021, 11:28:19 AMthey're simply too narrow on each side to safely navigate without slowing way down.
That is literally the point of them.
The point should be to make people go the speed limit, not to periodically force them to come to close to a complete stop in order to annoy them into taking a different road.
But roundabouts already do this, just at intersections. I don't see why putting them mid-block is necessarily a huge deal in neighborhood settings where, frankly, 15-20 is really the fastest anyone should be going.
Roundabouts are an alternative to signals or stop signs, not to nothing.
Okay, so they made something out of nothing. I'm not sure what the big deal is? Briefly slowing down below the limit is not unreasonable in a neighborhood setting. Especially this road, as it's barely a fifth of a mile long.
Point about intersections is simply that roundabouts "require" drivers to slow down and navigate a circle, and we only slightly lose our minds about them even when placed on highways. Yet one finds its way into a small neighborhood and we all lose our minds. God forbid we slow down from 25 to 15 to drive around a small median.
Quote from: webny99 on September 08, 2021, 06:09:50 PM
The posted limit is actually 25 mph, as it is on almost all residential neighborhoods in this area. These are also much tighter than a regular roundabout - you can even see that one of the residents has placed rocks around this particular one to avoid people driving on their lawn. Like I said, next time I use one I'm going to pay attention to whether it's navigable at 25 mph or even 20 mph, because I don't think it is.
Perhaps the limit shouldn't be 25 then. Default residential limit in Seattle is 20, and the roads are now (finally) being designed to encourage those slow speeds. Here in Seattle and Tacoma, calming circles just as tight as the the circle you shared are a dime-a-dozen (
example (https://goo.gl/maps/NzX8gbfaCYWJHwCp7),
example (https://goo.gl/maps/Weh8MJd5P2L4MpGC7)). Yes, the vast majority are at intersections, but the point is that you have to slow way down to navigate them. This does bring the average speed down quite a bit, since other design characteristics also encourage slow speeds between the circles (especially single-lane streets with parking along both edges).
There are ways to slow traffic down besides speed humps and tables. Changing the street design is highly effective: large trees, street parking, chicanes, contraflow, and of course calming circles. Yes, many of these either encourage or force you slow down below the limit, but that's fine in a neighborhood setting. The goal of (
checks notes...) Grace Marie Drive should not be to allow drivers to maintain 25 mph. It should be to create a livable neighborhood street. In my professional opinion, the calming circle that more-or-less forces cars to slow down, and perhaps glance around, partially achieves that. Ideally, the intersections north and south should have the circles as well (having the circle only mid-block is a bit odd but there is nothing inherently wrong with it).
Quote from: jakeroot on September 09, 2021, 04:34:09 AM
Point about intersections is simply that roundabouts "require" drivers to slow down and navigate a circle, and we only slightly lose our minds about them even when placed on highways. Yet one finds its way into a small neighborhood and we all lose our minds. God forbid we slow down from 25 to 15 to drive around a small median.
Whoa, hold up there. I believe vdeane and I are the only ones that have even expressed disapproval for these mini-roundabouts, and only here in this thread. That's nowhere
near the level of controversy that actual roundabouts have created on this forum over the years. See
here (https://www.aaroads.com/forum/index.php?topic=15546.0). :crazy:
Quote from: jakeroot on September 09, 2021, 04:34:09 AM
Perhaps the limit shouldn't be 25 then. Default residential limit in Seattle is 20, and the roads are now (finally) being designed to encourage those slow speeds. Here in Seattle and Tacoma, calming circles just as tight as the the circle you shared are a dime-a-dozen (example (https://goo.gl/maps/NzX8gbfaCYWJHwCp7), example (https://goo.gl/maps/Weh8MJd5P2L4MpGC7)). Yes, the vast majority are at intersections, but the point is that you have to slow way down to navigate them. This does bring the average speed down quite a bit, since other design characteristics also encourage slow speeds between the circles (especially single-lane streets with parking along both edges).
There are ways to slow traffic down besides speed humps and tables. Changing the street design is highly effective: large trees, street parking, chicanes, contraflow, and of course calming circles. Yes, many of these either encourage or force you slow down below the limit, but that's fine in a neighborhood setting. The goal of (checks notes...) Grace Marie Drive should not be to allow drivers to maintain 25 mph. It should be to create a livable neighborhood street. In my professional opinion, the calming circle that more-or-less forces cars to slow down, and perhaps glance around, partially achieves that. Ideally, the intersections north and south should have the circles as well (having the circle only mid-block is a bit odd but there is nothing inherently wrong with it).
I don't think the speed limit should be lowered here. There's nothing wrong with 25 mph. Some of the things you mention (lower speed limits, large trees, street parking) are suitable for dense urban areas, especially those with high concentrations of pedestrians, but are unnecessary in suburban neighborhoods. There's already sidewalks on both sides of the street here, which is more than can be said of a lot of neighborhoods that
don't have traffic calming circles.
I actually kind of like the small roundabouts in Seattle. They're definitely not as tight as my mid-block example, they help to visually identify where the intersection is because of the vegetation, and traffic is able to keep moving around them, unlike a four-way stop or a two-way stop (which is what those intersections would have here in NY). The mid-block calming circle, meanwhile, has no vegetation, only a lamp post, so it's easy to overlook the base and not realize how big it is until you're too close to adjust your speed and navigate it accordingly, so you end up slamming the brakes.
And to be clear, I don't have an inherent issue with driving below the speed limit if it's reasonably set, I just like to be able to maintain whatever speed I'm traveling. For example, I can usually maintain about 25-30 mph on the road with the seven speed humps that I linked to upthread, and it bothers me to no end when people brake for
every single speed hump. There's even been a few times when I've crossed the double-solid line and passed people who insist on doing so. If you slow down to 5 mph for a speed hump, you've become an obstruction not much different than a garbage truck or a mail truck, so I don't see any reason not to pass you.
Quote from: webny99 on September 09, 2021, 09:12:11 AM
Quote from: jakeroot on September 09, 2021, 04:34:09 AM
Point about intersections is simply that roundabouts "require" drivers to slow down and navigate a circle, and we only slightly lose our minds about them even when placed on highways. Yet one finds its way into a small neighborhood and we all lose our minds. God forbid we slow down from 25 to 15 to drive around a small median.
Whoa, hold up there. I believe vdeane and I are the only ones that have even expressed disapproval for these mini-roundabouts, and only here in this thread. That's nowhere near the level of controversy that actual roundabouts have created on this forum over the years. See here (https://www.aaroads.com/forum/index.php?topic=15546.0). :crazy:
Quote from: jakeroot on September 09, 2021, 04:34:09 AM
Perhaps the limit shouldn't be 25 then. Default residential limit in Seattle is 20, and the roads are now (finally) being designed to encourage those slow speeds. Here in Seattle and Tacoma, calming circles just as tight as the the circle you shared are a dime-a-dozen (example (https://goo.gl/maps/NzX8gbfaCYWJHwCp7), example (https://goo.gl/maps/Weh8MJd5P2L4MpGC7)). Yes, the vast majority are at intersections, but the point is that you have to slow way down to navigate them. This does bring the average speed down quite a bit, since other design characteristics also encourage slow speeds between the circles (especially single-lane streets with parking along both edges).
There are ways to slow traffic down besides speed humps and tables. Changing the street design is highly effective: large trees, street parking, chicanes, contraflow, and of course calming circles. Yes, many of these either encourage or force you slow down below the limit, but that's fine in a neighborhood setting. The goal of (checks notes...) Grace Marie Drive should not be to allow drivers to maintain 25 mph. It should be to create a livable neighborhood street. In my professional opinion, the calming circle that more-or-less forces cars to slow down, and perhaps glance around, partially achieves that. Ideally, the intersections north and south should have the circles as well (having the circle only mid-block is a bit odd but there is nothing inherently wrong with it).
I don't think the speed limit should be lowered here. There's nothing wrong with 25 mph. Some of the things you mention (lower speed limits, large trees, street parking) are suitable for dense urban areas, especially those with high concentrations of pedestrians, but are unnecessary in suburban neighborhoods. There's already sidewalks on both sides of the street here, which is more than can be said of a lot of neighborhoods that don't have traffic calming circles.
I actually kind of like the small roundabouts in Seattle. They're definitely not as tight as my mid-block example, they help to visually identify where the intersection is because of the vegetation, and traffic is able to keep moving around them, unlike a four-way stop or a two-way stop (which is what those intersections would have here in NY). The mid-block calming circle, meanwhile, has no vegetation, only a lamp post, so it's easy to overlook the base and not realize how big it is until you're too close to adjust your speed and navigate it accordingly, so you end up slamming the brakes.
And to be clear, I don't have an inherent issue with driving below the speed limit if it's reasonably set, I just like to be able to maintain whatever speed I'm traveling. For example, I can usually maintain about 25-30 mph on the road with the seven speed humps that I linked to upthread, and it bothers me to no end when people brake for every single speed hump. There's even been a few times when I've crossed the double-solid line and passed people who insist on doing so. If you slow down to 5 mph for a speed hump, you've become an obstruction not much different than a garbage truck or a mail truck, so I don't see any reason not to pass you.
A speed hump that allows comfortably travelling over at 30mph seems like it would barely protect pedestrians. Instead of lowering the speed limit entirely or putting in humps that are no different from slight road imperfections, why not post a yellow warning sign with a recommended crossing speed?
So placing excessive traffic calming on a road is in itself a justification for lowering the speed limit? I don't buy that.
Quote from: US 89 on September 09, 2021, 11:53:29 AM
So placing excessive traffic calming on a road is in itself a justification for lowering the speed limit? I don't buy that.
I'd buy that for a dollar.
Quote from: yand on September 09, 2021, 11:27:01 AM
A speed hump that allows comfortably travelling over at 30mph seems like it would barely protect pedestrians. Instead of lowering the speed limit entirely or putting in humps that are no different from slight road imperfections, why not post a yellow warning sign with a recommended crossing speed?
Just to be clear here, these particular speed humps are not pedestrian crossings. They're specifically for slowing traffic down, since it's a residential street that's used as a cut through. It could have easily been built as a cul-de-sac on one end, but of course the residents didn't want to lose their access on either end. Instead, they have to deal with the traffic, which in turn has to deal with the speed humps.
30 mph might be a bit fast for these speed humps, but like most speed humps, they're certainly navigable at 20-25 mph if you keep your right wheels on the shoulder.
Quote from: webny99 on September 09, 2021, 09:12:11 AM
I actually kind of like the small roundabouts in Seattle. They're definitely not as tight as my mid-block example, they help to visually identify where the intersection is because of the vegetation, and traffic is able to keep moving around them, unlike a four-way stop or a two-way stop (which is what those intersections would have here in NY).
Dear Portland, Yr doin it wrong. (https://www.google.com/maps/@43.6625903,-70.2869448,3a,57.3y,281.58h,84.75t/data=!3m7!1e1!3m5!1sJutFIcuvM34DffBbRbrQyA!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fpanoid%3DJutFIcuvM34DffBbRbrQyA%26cb_client%3Dmaps_sv.tactile.gps%26w%3D203%26h%3D100%26yaw%3D296.06006%26pitch%3D0%26thumbfov%3D100!7i13312!8i6656)
Here's one that is so new, it is not yet reflected on Google Maps Street View or the main map: N. Virginia St & West Stadium Parking Complex access (https://www.google.com/maps/place/1590+N+Virginia+St,+Reno,+NV+89503/@39.5448377,-119.8199498,224m/data=!3m1!1e3!4m5!3m4!1s0x809947163d9560af:0xf7504f151098f16a!8m2!3d39.5447901!4d-119.8195957) (just north of the 15th St signal) adjacent to the University of Nevada, Reno.
Interestingly enough, this was not installed solely for ingress/egress to the garage. The Regional Transportation Commission just finished a project on Virginia Street between I-80 and this roundabout that converted one of the through lanes each direction to a bus/bike lane. This was done partially to extend the RTC's Rapid Virginia Line from downtown Reno to the university. The roundabout was installed to provide a place for the buses to turn around after servicing the bus stop just north of Virginia Street adjacent to Lawlor Events Center on campus (which is where the basketball teams play). The stop is a short walk to the football stadium, student union, and other mid-campus locations and is also close to a couple large student apartment complexes, so it was hoped that a rapid stop at this location could help encourage ridership–but there was not an existing easy spot in the area for the bus to turn around.
This reminded me of a relatively new roundabout in Muncie, Indiana along McKinley Avenue inside the campus of Ball State University.
https://www.google.com/maps/@40.2088918,-85.4076557,270m/data=!3m1!1e3
The roadway used to curve from the left of the image to the southeast before resuming its southward trek through campus. As the Google Maps view indicate new residential halls were constructed that pushed the road to its current configuration, making a 90-degree turn from west to south. The road heading from the north of the roundabout serves a shuttle bus station for the parking lots in that area, primarily for commuter students.
My issue is that the roundabout is a bit awkward for those traveling from the west to the south along McKinley. If I recall there's actually a stop sign when you enter the roundabout and the geometry of the roundabout means you don't really treat it like a normal roundabout anyway. I always go through that southwest part of the roundabout as if it's a turn in the road as opposed to a traffic circle. Since something like 98-99 percent of traffic is thru traffic along McKinley I don't see why this couldn't have just been built as a single roadway but at a 90-degree angle with a roadway leading to the north to the bus stop.
Here's a relatively new one in Layton, Utah where a one-way ramp becomes a two-way frontage road:
https://www.google.com/maps/@41.1046966,-112.0032136,87m/data=!3m1!1e3
Quote from: US 89 on September 26, 2021, 11:51:40 PM
Here's a relatively new one in Layton, Utah where a one-way ramp becomes a two-way frontage road:
https://www.google.com/maps/@41.1046966,-112.0032136,87m/data=!3m1!1e3
What's even the point of this? Why not just be one-way up to that first driveway?
Quote from: TheHighwayMan394 on September 27, 2021, 02:11:50 AM
Quote from: US 89 on September 26, 2021, 11:51:40 PM
Here's a relatively new one in Layton, Utah where a one-way ramp becomes a two-way frontage road:
https://www.google.com/maps/@41.1046966,-112.0032136,87m/data=!3m1!1e3
What's even the point of this? Why not just be one-way up to that first driveway?
I actually like this. I'm not familiar with this location, but I'd guess just so that it provides a place for vehicles to turn around without needing to use the driveway to do so. Could also be that a two-way road existed before the freeway ramp did.
The above caused me to think of another one from the Reno area, this time in Sparks, NV. The I-80 EB off ramp to Rock Blvd has an offshoot to Nugget Ave. The end of the ramp comes out at an entrance to one of the Nugget Casino/Resort's parking lots, which is also the west end of Nugget Ave. Here's the Google Map (https://www.google.com/maps/@39.5329582,-119.7622214,178m/data=!3m1!1e3).
Interestingly, when you actually drive the ramp (see in street view (https://goo.gl/maps/WT51KNraMMJxCJ7Z9)), there is a sign that says "15th St" that points toward the parking lot–while this is the 15th St alignment if you check out the other side of I-80, I don't think it's actually a maintained street. This roundabout has been in place for about a decade, but not more than two–I think it was put in place to help prevent wrong-way incursions.
For all the times I've clicked on this thread, I can't believe I never made the connection with an interesting example that exists in my area, the one-way section of Penfield Rd (https://www.google.com/maps/@43.1294196,-77.4859806,3a,52.2y,146.99h,86.42t/data=!3m7!1e1!3m5!1sLdlg9ph0LGdXRAe2_1LOWg!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fpanoid%3DLdlg9ph0LGdXRAe2_1LOWg%26cb_client%3Dmaps_sv.tactile.gps%26w%3D203%26h%3D100%26yaw%3D16.595814%26pitch%3D0%26thumbfov%3D100!7i16384!8i8192!5m1!1e1) in Penfield, NY, just west of where it rejoins NY 441.
This is a really interesting case for several reasons. First off, the reason this is one-way is because of the obvious inadequacies of this intersection (https://www.google.com/maps/@43.1285416,-77.4835829,3a,81y,280.53h,76.65t/data=!3m6!1e1!3m4!1s9Ccdydq_qOez3iM6tH0zZw!2e0!7i13312!8i6656!5m1!1e1), which would require a major overhaul to handle the volumes turning left from Penfield Road onto NY 441. This would almost certainly require a signal, which would back up traffic onto the expressway portion of NY 441 (and traffic backs up even without a signal here thanks to the notoriously congested NY 441/Five Mile Line intersection). So instead, eastbound traffic has to use Panorama Trail to access NY 441, as evidenced by signage here (https://www.google.com/maps/@43.1335471,-77.4930481,3a,17y,139.73h,88.22t/data=!3m6!1e1!3m4!1sk73d0PP1k7oI7NmWDtjOKw!2e0!7i16384!8i8192!5m1!1e1).
But of course, there's some apartments near the Penfield Rd/NY 441 intersection, so that left turn movement out of Penfield Road is still allowed for traffic going to/from the apartments, just not through traffic. The one-way section is only about 350 feet in length, so if you lived in those apartments, it would be easy enough to use it going the wrong way during non-peak hours if you wanted to, although of course I never have done so personally.
This also creates an interesting dynamic at the NY 441/NY 153 (Panorama Trail) interchange, as the exit ramp from NY 441 WB is basically a ghost ramp, while the corresponding EB entrance provides a critical through movement and is very busy because of it.
Quote from: US 89 on September 26, 2021, 11:51:40 PM
Here's a relatively new one in Layton, Utah where a one-way ramp becomes a two-way frontage road:
https://www.google.com/maps/@41.1046966,-112.0032136,87m/data=!3m1!1e3
Woah. This seems like it would be a game-changer in rural Texas for ramps like this (https://www.google.com/maps/@29.007373,-95.3972649,3a,75y,126.6h,86.72t/data=!3m6!1e1!3m4!1ssf7thi4VEwJgYjvemRV6Fw!2e0!7i16384!8i8192) that end onto a two-way frontage road. It would probably increase the safety of these feeders immensely.
With regards to the Leyton example above:
I find it interesting that the two-way road wasn't kept, and the roundabout constructed anyway as the beginning of the on-ramp. They've created a rather long no-outlet situation with the present setup.
Quote from: roadfro on September 28, 2021, 12:14:26 PM
Quote from: TheHighwayMan394 on September 27, 2021, 02:11:50 AM
Quote from: US 89 on September 26, 2021, 11:51:40 PM
Here's a relatively new one in Layton, Utah where a one-way ramp becomes a two-way frontage road:
https://www.google.com/maps/@41.1046966,-112.0032136,87m/data=!3m1!1e3
What's even the point of this? Why not just be one-way up to that first driveway?
I actually like this. I'm not familiar with this location, but I'd guess just so that it provides a place for vehicles to turn around without needing to use the driveway to do so. Could also be that a two-way road existed before the freeway ramp did.
Yep. Before 2018, the 2-way frontage road extended down all the way to 193 where it connected to the northbound exit ramp. The original entrance ramp to northbound I-15 left 193 about halfway between the freeway bridge and the frontage road (you can still make out the scars from the old ramp on satellite).
Quote from: jakeroot on September 28, 2021, 07:35:29 PM
With regards to the Leyton example above:
I find it interesting that the two-way road wasn't kept, and the roundabout constructed anyway as the beginning of the on-ramp. They've created a rather long no-outlet situation with the present setup.
I wonder if it's because they didn't want to overload a roundabout with traffic heading for I-15 north. In my personal experience 193 is a very busy road and there is always a ton of traffic getting on and off the interstate there. Could also be that the geometry of a ramp to 15 north from a roundabout over there might be a little awkward.