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National Boards => General Highway Talk => Topic started by: empirestate on January 11, 2014, 08:38:46 PM

Title: Most acute intersection?
Post by: empirestate on January 11, 2014, 08:38:46 PM
The intersection of Telegraph and Broadway in Oakland, CA struck me as being about as acute an angle as I've seen between two streets:
http://goo.gl/maps/jQLbM

Any others out there with an even tighter angle? Extra credit if it's the intersection of two 2-way roads, but not required. Even more credit given if turns aren't restricted around the vertex, as they seem to be in the above example.

Disqualified if it's the junction of the opposing roadways of a dual-carriageway system (divided highway or one-way couplet). Also disqualified if the intersection or surrounding blocks have been significantly modified to reduce the acuteness for one or more approaches. (See for example, the nearby intersection of San Pablo and Market, where the alignment of southbound Market St. has been adjusted, so that the street no longer fits into its original ROW: https://goo.gl/maps/h8vcB)
Title: Re: Most acute intersection?
Post by: hotdogPi on January 11, 2014, 08:43:41 PM
Two 2-way roads:

NY 7 and US 20
Title: Re: Most acute intersection?
Post by: NE2 on January 11, 2014, 08:58:31 PM
Times Square.
Title: Re: Most acute intersection?
Post by: jp the roadgeek on January 11, 2014, 09:06:59 PM
The five corners in East Longmeadow, MA
Title: Re: Most acute intersection?
Post by: hotdogPi on January 11, 2014, 09:08:11 PM
Is there any way to measure the angle of these on Google Maps?
Title: Re: Most acute intersection?
Post by: NE2 on January 11, 2014, 09:20:10 PM
Quote from: 1 on January 11, 2014, 09:08:11 PM
Is there any way to measure the angle of these on Google Maps?
Hold a protractor up to your monitor?
Title: Re: Most acute intersection?
Post by: vdeane on January 11, 2014, 09:41:48 PM
NY 33 and Griswold Rd: http://goo.gl/maps/KvKsv

4 way, two way roads, no turn restrictions.
Title: Re: Most acute intersection?
Post by: hotdogPi on January 11, 2014, 09:58:30 PM
NY 33 and Griswold Rd. is 21.76 degrees.

NY 7 and US 20 is 24.71 degrees.

Telegraph and Broadway is 33.39 degrees.

MA 220 and MA 186 is 22.65 degrees.



There seems to be a limit at around 20.


Sorry for the incorrect values earlier. I was using trigonometry.
Title: Re: Most acute intersection?
Post by: jemacedo9 on January 11, 2014, 10:23:10 PM
The two that came to my mind quickly are:
PA 42 and PA 118:  http://goo.gl/maps/fcpFY (http://goo.gl/maps/fcpFY)
PA 29 at Pickering Dam Rd (SR 1017):  http://goo.gl/maps/2fbP8 (http://goo.gl/maps/2fbP8)
Title: Re: Most acute intersection?
Post by: hotdogPi on January 11, 2014, 10:35:06 PM
Quote from: jemacedo9 on January 11, 2014, 10:23:10 PM
The two that came to my mind quickly are:
PA 42 and PA 118:  http://goo.gl/maps/fcpFY (http://goo.gl/maps/fcpFY)
PA 29 at Pickering Dam Rd (SR 1017):  http://goo.gl/maps/2fbP8 (http://goo.gl/maps/2fbP8)

First one: 15.23 degrees. New record!

Second one doesn't qualify (if it's where I think you're talking about).
Title: Re: Most acute intersection?
Post by: vtk on January 12, 2014, 03:29:57 AM
Northwest St & Exchage St / Castalia St, Bellevue, OH. Eyeballing it, I think it's about 20 degrees, if not slightly less.

Elmville Rd / Cow Run Rd, near Peebles, OH. Angle around 20 degrees, maybe slightly more?
Title: Re: Most acute intersection?
Post by: countysigns on January 12, 2014, 07:47:45 AM
Beech and Orange Streets in downtown Toledo...http://goo.gl/maps/j928R
Title: Re: Most acute intersection?
Post by: jemacedo9 on January 12, 2014, 10:47:18 AM
Quote from: 1 on January 11, 2014, 10:35:06 PM
Second one doesn't qualify (if it's where I think you're talking about).

The second one is in Chester County, PA, south of Phoenixville...it is two separate two-lane state roads...though turns are restricted.
Title: Re: Most acute intersection?
Post by: Big John on January 12, 2014, 10:54:42 AM
Peachtree St and Forsyth St in Atlanta.
Title: Re: Most acute intersection?
Post by: Thing 342 on January 12, 2014, 11:03:21 AM
The Blue Ridge Parkway and SR-664 near Lyndhurst, Va.

http://goo.gl/maps/SJImQ
Title: Re: Most acute intersection?
Post by: The High Plains Traveler on January 12, 2014, 11:16:28 AM
This probably doesn't win the prize for most acute, but it is the intersection of two major highways: U.S. 83 and U.S. 54 in Liberal, KS. http://goo.gl/maps/u0P7L.  What makes this turn (SB 83 to EB 54) even more difficult is the lack of a protected left cycle and heavy oncoming traffic on 83.

I had to make this turn a number of times, since for my work I would stay in Liberal and then go east of town via U.S. 54 to the power plant. Finally I learned how to avoid it using county roads.
Title: Re: Most acute intersection?
Post by: CNGL-Leudimin on January 12, 2014, 01:08:43 PM
I was thinking of Barcelona and the streets that run parallel to the coast and intersect the appropiately named Diagonal avenue, but the angle is a bit obtuse compared to some crossings posted there: 30 degrees approx.
Title: Re: Most acute intersection?
Post by: sammi on January 12, 2014, 01:12:28 PM
Quote from: CNGL-Leudimin on January 12, 2014, 01:08:43 PM
a bit obtuse compared to... 30° approx

That's still acute though. You could say "less acute".
Title: Re: Most acute intersection?
Post by: Jardine on January 12, 2014, 01:13:41 PM
Sunnyside Avenue and Lincoln Way/Highway 30 in Missouri Valley Iowa is a VERY tight angle, and makes for a VERY awkward intersection.

Don't know for sure, but perhaps in the long long ago, Sunnyside was the original alignment of Lincoln Way?  But this would have been maybe 100 years ago, if then.
Title: Re: Most acute intersection?
Post by: Zmapper on January 12, 2014, 02:11:35 PM
West Colfax at 6th Ave, Golden, Colorado. Not the most acute, but it is an acute intersection of two major roadways. http://goo.gl/maps/zCAgU
Title: Re: Most acute intersection?
Post by: tradephoric on January 12, 2014, 03:33:20 PM
An issue with acute intersections is that they can lead to long pedestrian crossings.
(long pedestrian crossings thread: https://www.aaroads.com/forum/index.php?topic=5955.0).

Here's one of the longest crosswalk in America where two acute roads meet:
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi478.photobucket.com%2Falbums%2Frr144%2Ftradephoric%2Funtitled02_zps23b28dc3.jpg&hash=6a410287b9247629c6a7a16da97494404b7d5104)
https://maps.google.com/?ll=26.81026,-80.15281&z=19&t=h
Title: Re: Most acute intersection?
Post by: Mr_Northside on January 12, 2014, 05:46:05 PM
McCoy Rd. & Island Ave. (PA-51) in McKees Rocks has a turn restriction, but is two 2-way roads.

http://goo.gl/maps/hfRiS (http://goo.gl/maps/hfRiS)

Title: Re: Most acute intersection?
Post by: NE2 on January 12, 2014, 06:08:19 PM
Quote from: NE2 on January 11, 2014, 08:58:31 PM
Times Square.
I calculate 13.5 degrees. Of course Broadway's been closed to motor vehicles since 2009, so it no longer counts.
Title: Re: Most acute intersection?
Post by: hotdogPi on January 12, 2014, 06:13:42 PM
Quote from: NE2 on January 12, 2014, 06:08:19 PM
Quote from: NE2 on January 11, 2014, 08:58:31 PM
Times Square.
I calculate 13.5 degrees. Of course Broadway's been closed to motor vehicles since 2009, so it no longer counts.

If you're talking about Broadway and 7th Ave, Broadway bends at the intersection.
Title: Re: Most acute intersection?
Post by: NE2 on January 12, 2014, 07:12:55 PM
Quote from: 1 on January 12, 2014, 06:13:42 PM
Quote from: NE2 on January 12, 2014, 06:08:19 PM
Quote from: NE2 on January 11, 2014, 08:58:31 PM
Times Square.
I calculate 13.5 degrees. Of course Broadway's been closed to motor vehicles since 2009, so it no longer counts.

If you're talking about Broadway and 7th Ave, Broadway bends at the intersection.
Seriously? You trust the Goog without even checking the aerial?

PS: here's a 1977 view:
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fupload.wikimedia.org%2Fwikipedia%2Fcommons%2F4%2F48%2FNew_York%252C_New_York_1977_%252816%2529.jpg&hash=17413094d11dd4e16441c8df0a63fb829fa41718)
Title: Re: Most acute intersection?
Post by: elsmere241 on January 12, 2014, 07:59:15 PM
This one is about thirty degrees, in Newark, DE: http://goo.gl/maps/fvhps

Because it's where three developments meet, the school bus almost always has to make the 150-degree turn between the SW leg of Bent and the south leg of Briar.  (Ironically, Bent Lane is one of the straightest streets in the neighborhood.)

The northeast inside angle is parkland, but the southwest inside angle is tacked on to the adjoining residential lot.
Title: Re: Most acute intersection?
Post by: vtk on January 12, 2014, 08:04:03 PM
Columbus Ave & Market St, Washington CH, Ohio:

(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fmaps.googleapis.com%2Fmaps%2Fapi%2Fstaticmap%3Fcenter%3D39.5437%2C-83.4303%26amp%3Bzoom%3D17%26amp%3Bsize%3D500x400%26amp%3Bmaptype%3Dsatellite%26amp%3Bformat%3Djpeg%253Cbr%2520%2F%253E%26amp%3Bsensor%3Dfalse&hash=f2f832bd5b1725af900d0363cc64e5b0853c0c80)

Although the marked routes split directionally along Columbus & Market, all streets involved are still two-way.  Measurement tool in Google Earth indicates the angle is about 9.9°
Title: Re: Most acute intersection?
Post by: briantroutman on January 12, 2014, 11:08:16 PM
At about 26.5°, this intersection of Market and Hepburn Streets (http://bit.ly/1dh1RYq) in Williamsport, Pennsylvania certainly isn't the most acute in this list, but its acuteness probably is among the more frustrating for a few reasons.
Title: Re: Most acute intersection?
Post by: vdeane on January 12, 2014, 11:49:27 PM
This one in Essex Junction, VT is interesting because of the resulting unique signage: http://goo.gl/maps/CPSZB
Title: Re: Most acute intersection?
Post by: cpzilliacus on January 13, 2014, 03:17:50 AM
The intersection of U.S. 1 (Baltimore Avenue) and Rhode Island Avenue (https://maps.google.com/maps?q=39.029294,-76.915445&ll=39.029227,-76.915004&spn=0.004076,0.007929&num=1&t=h&gl=us&z=17) in Beltsville, Maryland was modified a few years ago to make it less acute, but you can still see the angle at which the streets used to cross. 

Rhode Island Avenue was once the trackbed for a streetcar line. 
Title: Re: Most acute intersection?
Post by: vtk on January 13, 2014, 06:21:54 AM
Quote from: cpzilliacus on January 13, 2014, 03:17:50 AM
The intersection of U.S. 1 (Baltimore Avenue) and Rhode Island Avenue (https://maps.google.com/maps?q=39.029294,-76.915445&ll=39.029227,-76.915004&spn=0.004076,0.007929&num=1&t=h&gl=us&z=17) in Beltsville, Maryland was modified a few years ago to make it less acute,

I think I'd have moved the southern intersection further southwest, merging it with the Montgomery Rd intersection.  But perhaps this idea goes in the Redesigning Intersections thread...
Title: Re: Most acute intersection?
Post by: empirestate on January 13, 2014, 10:29:57 AM
Quote from: Jardine on January 12, 2014, 01:13:41 PM
Sunnyside Avenue and Lincoln Way/Highway 30 in Missouri Valley Iowa is a VERY tight angle, and makes for a VERY awkward intersection.

Nice one; I think that's my favorite so far!

Quote from: Mr_Northside on January 12, 2014, 05:46:05 PM
McCoy Rd. & Island Ave. (PA-51) in McKees Rocks has a turn restriction, but is two 2-way roads.

http://goo.gl/maps/hfRiS (http://goo.gl/maps/hfRiS)

Can anyone get a measurement on that? It looks like a contender for "least obtuse" so far. :-P

Quote from: briantroutman on January 12, 2014, 11:08:16 PM
At about 26.5°, this intersection of Market and Hepburn Streets (http://bit.ly/1dh1RYq) in Williamsport, Pennsylvania certainly isn't the most acute in this list, but its acuteness probably is among the more frustrating for a few reasons.

Yep, I seem to remember that one from the Most Annoying Intersection thread.

Quote from: vtk on January 13, 2014, 06:21:54 AM
Quote from: cpzilliacus on January 13, 2014, 03:17:50 AM
The intersection of U.S. 1 (Baltimore Avenue) and Rhode Island Avenue (https://maps.google.com/maps?q=39.029294,-76.915445&ll=39.029227,-76.915004&spn=0.004076,0.007929&num=1&t=h&gl=us&z=17) in Beltsville, Maryland was modified a few years ago to make it less acute,

I think I'd have moved the southern intersection further southwest, merging it with the Montgomery Rd intersection.  But perhaps this idea goes in the Redesigning Intersections thread...

They were probably trying to avoid buying that office building.
Title: Re: Most acute intersection?
Post by: vtk on January 13, 2014, 11:07:03 AM
Quote from: empirestate on January 13, 2014, 10:29:57 AM
Quote from: vtk on January 13, 2014, 06:21:54 AM
Quote from: cpzilliacus on January 13, 2014, 03:17:50 AM
The intersection of U.S. 1 (Baltimore Avenue) and Rhode Island Avenue (https://maps.google.com/maps?q=39.029294,-76.915445&ll=39.029227,-76.915004&spn=0.004076,0.007929&num=1&t=h&gl=us&z=17) in Beltsville, Maryland was modified a few years ago to make it less acute,

I think I'd have moved the southern intersection further southwest, merging it with the Montgomery Rd intersection.  But perhaps this idea goes in the Redesigning Intersections thread...

They were probably trying to avoid buying that office building.

They wouldn't have to; we have plenty of offset intersections in Columbus...
Title: Re: Most acute intersection?
Post by: Brandon on January 13, 2014, 11:15:12 AM
There's a few of these in Northeast Illinois.

Clark and Ashland (https://maps.google.com/maps?hl=en&ll=41.986855,-87.669439&spn=0.003254,0.005284&t=h&z=18), north side of Chicago.

Elston, Milwaukee, and Melvina (https://maps.google.com/maps?hl=en&ll=41.992463,-87.783026&spn=0.002301,0.005284&t=h&z=18), northwest side of Chicago.

Chicago and Ottawa (https://maps.google.com/maps?hl=en&ll=41.533205,-88.081872&spn=0.001638,0.002642&t=h&z=19), Joliet.

Entrance and Third (https://maps.google.com/maps?hl=en&ll=41.120523,-87.868931&spn=0.001166,0.002642&t=h&z=19), Kankakee.  And yes, the name of the street is 'Entrance".

Dearborn and Euclid (https://maps.google.com/maps?hl=en&ll=41.143944,-87.857602&spn=0.001165,0.002642&t=h&z=19), Bradley.
Title: Re: Most acute intersection?
Post by: Jardine on January 13, 2014, 01:35:13 PM
Quote from: empirestate on January 13, 2014, 10:29:57 AM
Quote from: Jardine on January 12, 2014, 01:13:41 PM
Sunnyside Avenue and Lincoln Way/Highway 30 in Missouri Valley Iowa is a VERY tight angle, and makes for a VERY awkward intersection.

Nice one; I think that's my favorite so far!




LOL, it actually is a fairly safe intersection as the locals avoid Sunnyside Avenue.  The long frontage to Highway 30 makes sorting out what is going on difficult and it makes people averse.    The motel, trailer park, and a fitness center also have driveways adjoining the intersection, and there is a Pizza Hut fairly close.

Not a fun intersection.  And Sunnyside follows the alignment of the current Highway 30 if you pull back a bit.  I'd say that was the original road, and the slight jog in Highway 30 allows it to connect to Erie Street further SW, and that is the main drag.  No one seems to remember the road ever being anywhere else than it is now however, so if it was changed, it was done long ago.


(could someone with WAY more computer skills than myself post the Google pic of it?  It's an interesting intersection, thanx!)

(if someone could figure out the angle too, that would be great)
Title: Re: Most acute intersection?
Post by: empirestate on January 13, 2014, 01:39:18 PM
Quote from: vtk on January 13, 2014, 11:07:03 AM
Quote from: empirestate on January 13, 2014, 10:29:57 AM
Quote from: vtk on January 13, 2014, 06:21:54 AM
Quote from: cpzilliacus on January 13, 2014, 03:17:50 AM
The intersection of U.S. 1 (Baltimore Avenue) and Rhode Island Avenue (https://maps.google.com/maps?q=39.029294,-76.915445&ll=39.029227,-76.915004&spn=0.004076,0.007929&num=1&t=h&gl=us&z=17) in Beltsville, Maryland was modified a few years ago to make it less acute,

I think I'd have moved the southern intersection further southwest, merging it with the Montgomery Rd intersection.  But perhaps this idea goes in the Redesigning Intersections thread...

They were probably trying to avoid buying that office building.

They wouldn't have to; we have plenty of offset intersections in Columbus...

With that building still standing, you could perhaps align with the gas station driveway and combine the two signal sets into one. But it almost seems you could accomplish the same without moving anything; just re-signal the two intersections into one without any new construction.

Quote from: Brandon on January 13, 2014, 11:15:12 AM
Entrance and Third (https://maps.google.com/maps?hl=en&ll=41.120523,-87.868931&spn=0.001166,0.002642&t=h&z=19), Kankakee.  And yes, the name of the street is 'Entrance".

Dearborn and Euclid (https://maps.google.com/maps?hl=en&ll=41.143944,-87.857602&spn=0.001165,0.002642&t=h&z=19), Bradley.

Here's one similar to those, in North Bellport, NY, that would have been a great candidate–if and when the streets were ever actually connected:
https://goo.gl/maps/IG6Tv
Title: Re: Most acute intersection?
Post by: JCinSummerfield on January 13, 2014, 01:47:38 PM
The first one that came to my mind is Dexter Ave, Huron St & Jackson Ave (Business 94 is on the latter two streets.) in Ann Arbor
Title: Re: Most acute intersection?
Post by: pianocello on January 13, 2014, 02:43:53 PM
Quote from: Jardine on January 13, 2014, 01:35:13 PM
Quote from: empirestate on January 13, 2014, 10:29:57 AM
Quote from: Jardine on January 12, 2014, 01:13:41 PM
Sunnyside Avenue and Lincoln Way/Highway 30 in Missouri Valley Iowa is a VERY tight angle, and makes for a VERY awkward intersection.

Nice one; I think that's my favorite so far!


(could someone with WAY more computer skills than myself post the Google pic of it?  It's an interesting intersection, thanx!)

(if someone could figure out the angle too, that would be great)

Google Maps (http://goo.gl/maps/orlqs); Street View (http://goo.gl/maps/KrV4y).

This kinda reminds me of the intersection between Dubuque St and Ridge Rd in Iowa City. (Street View (http://goo.gl/maps/Xyw5T)) The carriageways of Dubuque are split there, however, so it isn't as sharp of a turn between SB Dubuque and NB Ridge.
Title: Re: Most acute intersection?
Post by: sandwalk on January 13, 2014, 03:16:05 PM
Hayes Avenue (SR 4) and North Depot Street in Sandusky, Ohio.  (Don't pay attention to Google maps).

http://goo.gl/maps/fd9WG
Title: Re: Most acute intersection?
Post by: vtk on January 13, 2014, 05:28:44 PM
Quote from: Jardine on January 12, 2014, 01:13:41 PM
Sunnyside Avenue and Lincoln Way/Highway 30 in Missouri Valley Iowa is a VERY tight angle, and makes for a VERY awkward intersection.

Quote from: Jardine on January 13, 2014, 01:35:13 PM
(if someone could figure out the angle too, that would be great)

9.35°.  Darn, you beat mine.
Title: Re: Most acute intersection?
Post by: empirestate on January 13, 2014, 06:00:57 PM
Quote from: sandwalk on January 13, 2014, 03:16:05 PM
Hayes Avenue (SR 4) and North Depot Street in Sandusky, Ohio.  (Don't pay attention to Google maps).

http://goo.gl/maps/fd9WG

That seems like sort of a special case...the course of Depot St. is actually close to perpendicular to Hayes, and has just been modified at the intersection because of a steep grade. I'm not sure I'd count it, for the same reason I wouldn't count an acutely-angled cross street that had been modified to be less so. But I also recognize it's a gray area that would probably lead to discounting many examples in Appalachian terrain which are functionally similar, if less obviously so.
Title: Re: Most acute intersection?
Post by: Jardine on January 13, 2014, 09:49:46 PM
Thanks for the help there.

Amazing how sharp the angle is.  I'm thinking in today's world no new intersection would ever be made like that.

IIRC, the daily traffic count on highway 30 thru Missouri Valley Iowa is in the 15-20,000 vehicles/day.

There is talk periodically of IaDOT building a 4 lane bypass around Missouri Valley, at least, and possibly extending to miss Logan Iowa too.  Cost is probably a big factor in the project never getting very far.  There would be a crossing of Willow Creek (big for a creek in this area, an overpass over Union Pacific double track RR, probably Illinois Central  single track, it would cross or block several country roads, an intersection with Loess Hills Trail (former US 75, former Iowa 183, and probably either a complex and/or expensive connection to the existing US30 at the I-29 interchange.


Title: Re: Most acute intersection?
Post by: citrus on January 13, 2014, 10:25:33 PM
Market St and Clayton St in San Francisco is very acute, and you can see for yourself if I did the satellite view link (https://www.google.com/maps/preview#!q=market+and+clayton%2C+sf&data=!1m4!1m3!1d355!2d-122.4439754!3d37.7582454!2m1!1e3!4m15!2m14!1m13!1s0x808f7e06e2c1a821%3A0x5fc7fc7976da262e!3m8!1m3!1d87534!2d-122.4376!3d37.7577!3m2!1i1366!2i666!4f13.1!4m2!3d37.7579732!4d-122.4435423&fid=7) correctly.

Bonus: a city bus makes the near-U turn maneuver as part of its regular route. There are dotted lines that roughly trace its path. No other vehicles are permitted to make such a maneuver, and the red light at the end of Clayton is very set back from the intersection so the bus has enough room.

The nearby intersection of Market and 18th is pretty acute, as well.
Title: Re: Most acute intersection?
Post by: empirestate on January 13, 2014, 11:15:26 PM
Quote from: citrus on January 13, 2014, 10:25:33 PM
Market St and Clayton St in San Francisco is very acute, and you can see for yourself if I did the satellite view link (https://www.google.com/maps/preview#!q=market+and+clayton%2C+sf&data=!1m4!1m3!1d355!2d-122.4439754!3d37.7582454!2m1!1e3!4m15!2m14!1m13!1s0x808f7e06e2c1a821%3A0x5fc7fc7976da262e!3m8!1m3!1d87534!2d-122.4376!3d37.7577!3m2!1i1366!2i666!4f13.1!4m2!3d37.7579732!4d-122.4435423&fid=7) correctly.

Bonus: a city bus makes the near-U turn maneuver as part of its regular route. There are dotted lines that roughly trace its path.

Seeing as how that line is the pantagraph wires, I'd say they trace it pretty exactly!
Title: Re: Most acute intersection?
Post by: Alps on January 15, 2014, 11:18:04 PM
Albany, NY: http://goo.gl/maps/LwzWg and a bonus one to the west
Title: Re: Most acute intersection?
Post by: Jardine on February 11, 2014, 01:07:18 PM
Wow!!

Lookit this one!!


(sorry it took me so long to remember it)

138thTrail is a county gravel, and Fulton is a frequently impassable dirt road. (does this count or do we discriminate against less fortunate roads?)

I tried the line feature on Google and estimate the angle is around 6 degrees.

41 degrees north, 48' 39.79"
95 degrees west, 59' 39.99"





Title: Re: Most acute intersection?
Post by: agentsteel53 on February 11, 2014, 01:22:39 PM
I don't know if that counts as a full intersection.  there are plenty of roads that meet at such angles where it is implied that one cannot make either the right or the left turn.
Title: Re: Most acute intersection?
Post by: Jardine on February 11, 2014, 01:44:45 PM
138th Trail is steep (rising as you head east) and Fulton is way steeper.  Scary turn off.

The slope and Fulton being a dirt road also leads to some scouring and erosion when it rains.  I have driven Fulton a few times, the rest of the road follows a scenic ridge for a mile or two, but the increasing tree growth (evident in the Google images) is really closing in the view.

One would not want to approach 138th Trail on Fulton and want to make a right turn.  Cars and pickups could probably do it, but nothing longer.  IIRC, there is a stop sign facing Fulton.

Both roads are incised into the hill's slope.  The gap between the roads is not a ditch, it is more of two cliffs tapering towards the apex.  Dramatic, but extremely bad for visibility.
Title: Re: Most acute intersection?
Post by: J Route Z on February 11, 2014, 04:03:38 PM
Quote from: jemacedo9 on January 11, 2014, 10:23:10 PM
The two that came to my mind quickly are:
PA 42 and PA 118:  http://goo.gl/maps/fcpFY (http://goo.gl/maps/fcpFY)
PA 29 at Pickering Dam Rd (SR 1017):  http://goo.gl/maps/2fbP8 (http://goo.gl/maps/2fbP8)

http://goo.gl/maps/Bg7M9 this sign needs to be replaced....
Title: Re: Most acute intersection?
Post by: Alps on February 11, 2014, 10:19:15 PM
If we're looking at all movements being legal:
Clove/Upper Mtn., Montclair NJ (http://goo.gl/maps/NRAl6) - I have not been able to turn right from Clove SB to Upper Mtn./Long Hill NB without swinging into the opposing lane. I am not the only one making this turn.
Pine Brook/Peace Valley, Montville NJ (http://goo.gl/maps/tgJfI) - Street View for this one because the differing grades of the roads add to the issue of the acute angle. It's hard enough seeing traffic just making a left out of Peace Valley. But if making a right, you need to poke into the NB lane of Pine Brook just to check whether anyone's coming in the SB lane. Yes, another one where you have to swing out to make it through.
Title: Re: Most acute intersection?
Post by: hbelkins on February 12, 2014, 01:09:59 PM
Can't see it well from the overhead view on Google Maps because of trees, and the map itself misrepresents the intersection, but TN 148 and the US route foursome where you turn up to Lookout Mountain should almost certainly qualify.
Title: Re: Most acute intersection?
Post by: hotdogPi on February 12, 2014, 03:29:57 PM
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fmaps.googleapis.com%2Fmaps%2Fapi%2Fstaticmap%3Fcenter%3D43.319804%2C-71.626359%26amp%3Bzoom%3D18%26amp%3Bsize%3D400x400%26amp%3Bsensor%3Dfalse%26amp%3Bmaptype%3Dsatellite&hash=4ee6c0b7c0f81c3dae8e14488e0861f5904f2638)

US 4 at the left fork, US 3 at the right fork.
Title: Re: Most acute intersection?
Post by: agentsteel53 on February 12, 2014, 06:21:53 PM
Quote from: 1 on February 12, 2014, 03:29:57 PM

US 4 at the left fork, US 3 at the right fork.

nah - you can see the implied turnaround at top left of photo.  no one is expected to make the super-acute angle.

Title: Re: Most acute intersection?
Post by: 1995hoo on February 20, 2014, 09:41:06 AM
I had forgotten about this one west of Hershey, PA, until I drove through there last weekend on the way to a hockey game. Rather acute on both sides. The guy in the pickup who's facing the camera waiting to turn left would basically have to make a U-turn if he wanted to head down that street on the right. (If you pan the camera around to look behind the Street View car, you'll see that street briefly runs directly alongside US-322 in an arrangement similar to, but not the same as, a frontage road.)

http://goo.gl/maps/q9R3l