HI everyone.
I'm trying to find other dedicated truck routes similar to the truck bypass/route lanes north of Los Angeles at the I-5/CA-14 (Newhall Pass)interchange - dedicated roadway (not just a shoulder lane) designed to give trucks their own right of way around a tricky interchange or particularly hilly area. California has a few other truck bypass lanes but not as long as the ones at Newhall Pass.
Are there any in other states?
Many thanks,
--jpm
Two in Portland: I-5 north at OR 99W (exit 294)
US 26 west at Sylvan/Canyon Rd (OR 8) (exit 71)
Don't forget the I-5 south and CA 99 south truck ramps at the interchange north of Wheeler Ridge.
The junction for I-5/CA 99 in Wheeler Ridge has one as does I-580 at I-205.
There is the non-freeway trucks only US 209 Truck Route in Ridgway PA. https://goo.gl/maps/knsdX84NKhKFSVfx8
Quote from: dfilpus on April 18, 2019, 09:21:27 AM
There is the non-freeway trucks only US 209 Truck Route in Ridgway PA. https://goo.gl/maps/knsdX84NKhKFSVfx8
I like how a GSV car has indeed gone down the "trucks only" route.
Doesn't the northern I-15/I-215 junction in San Bernardino also have truck-only ramps?
Quote from: froggie on April 18, 2019, 11:08:50 AM
Doesn't the northern I-15/I-215 junction in San Bernardino also have truck-only ramps?
They're labeled as TRUCK BYPASS with no signage compelling trucks to use it and nothing preventing cars from using the truck bypass
Quote from: dfilpus on April 18, 2019, 09:21:27 AM
There is the non-freeway trucks only US 209 Truck Route in Ridgway PA. https://goo.gl/maps/knsdX84NKhKFSVfx8
219, not 209.
Quote from: MNHighwayMan on April 18, 2019, 09:42:47 AM
Quote from: dfilpus on April 18, 2019, 09:21:27 AM
There is the non-freeway trucks only US 209 Truck Route in Ridgway PA. https://goo.gl/maps/knsdX84NKhKFSVfx8
I like how a GSV car has indeed gone down the "trucks only" route.
I drove it too, in my pickup truck. It was a heavy full-size truck, which I thought might possibly exceed the weight limit for the non-truck route; probably not, but I gave myself the benefit of the doubt. In any case, nobody cared.
Quote from: Mapmikey on April 18, 2019, 12:46:13 PM
Quote from: froggie on April 18, 2019, 11:08:50 AM
Doesn't the northern I-15/I-215 junction in San Bernardino also have truck-only ramps?
They're labeled as TRUCK BYPASS with no signage compelling trucks to use it and nothing preventing cars from using the truck bypass
Ditto the I-5 truck route in Newhall CA, mentioned by the OP. Of course, that is on a separate alignment from the main lanes, rather than sharing the centerline, and is treated by Caltrans as a separate route (unsigned route 5S) unlike the designated truck roadways at the I-15/I-215 junction or the I-5/I-405 southern junction. The Newhall truck route also has an exit (with Sierra Hwy/historic US 6) not on the main lanes, which is a unneeded excuse for car drivers to use the truck route.
Quote from: MNHighwayMan on April 18, 2019, 09:42:47 AM
Quote from: dfilpus on April 18, 2019, 09:21:27 AM
There is the non-freeway trucks only US 209 Truck Route in Ridgway PA. https://goo.gl/maps/knsdX84NKhKFSVfx8
I like how a GSV car has indeed gone down the "trucks only" route.
Where does it say trucks only though?
Quote from: Flint1979 on April 19, 2019, 10:51:21 AM
Quote from: MNHighwayMan on April 18, 2019, 09:42:47 AM
Quote from: dfilpus on April 18, 2019, 09:21:27 AM
There is the non-freeway trucks only US 209 Truck Route in Ridgway PA. https://goo.gl/maps/knsdX84NKhKFSVfx8
I like how a GSV car has indeed gone down the "trucks only" route.
Where does it say trucks only though?
There is a sign at the split "NO CARS".
Quote from: dfilpus on April 19, 2019, 10:56:31 AM
Quote from: Flint1979 on April 19, 2019, 10:51:21 AM
Quote from: MNHighwayMan on April 18, 2019, 09:42:47 AM
Quote from: dfilpus on April 18, 2019, 09:21:27 AM
There is the non-freeway trucks only US 209 Truck Route in Ridgway PA. https://goo.gl/maps/knsdX84NKhKFSVfx8
I like how a GSV car has indeed gone down the "trucks only" route.
Where does it say trucks only though?
There is a sign at the split "NO CARS".
When I last was there, there was a gross vehicle weight minimum (IIRC, 7000 lbs.) for the truck route.
Quote from: dfilpus on April 19, 2019, 10:56:31 AM
Quote from: Flint1979 on April 19, 2019, 10:51:21 AM
Quote from: MNHighwayMan on April 18, 2019, 09:42:47 AM
Quote from: dfilpus on April 18, 2019, 09:21:27 AM
There is the non-freeway trucks only US 209 Truck Route in Ridgway PA. https://goo.gl/maps/knsdX84NKhKFSVfx8
I like how a GSV car has indeed gone down the "trucks only" route.
Where does it say trucks only though?
There is a sign at the split "NO CARS".
Ok after looking at the whole intersection I saw that. What gets me though is that it says NO TRUCKS but has a runaway ramp for trucks and a speed limit sign for trucks on that stretch that says NO TRUCKS.
Quote from: dfilpus on April 18, 2019, 09:21:27 AM
There is the non-freeway trucks only US 209 Truck Route in Ridgway PA. https://goo.gl/maps/knsdX84NKhKFSVfx8
A similar example is US-258 Truck around Franklin, VA. Part of it is freeway (concurrent with the US-58 Bypass), while the rest is limited-access two lane road.
It technically doesn't restrict car traffic, though it's meant for truck traffic.
https://www.google.com/maps/@36.6655007,-76.8851966,3a,37.5y,317.51h,87.04t/data=!3m6!1e1!3m4!1szSnArsche4dauUlkoOFLQg!2e0!7i13312!8i6656
It's also one of the few two-lane roads in Virginia that actually has paved shoulders.
Quote from: Flint1979 on April 19, 2019, 10:09:55 PM
Quote from: dfilpus on April 19, 2019, 10:56:31 AM
Quote from: Flint1979 on April 19, 2019, 10:51:21 AM
Quote from: MNHighwayMan on April 18, 2019, 09:42:47 AM
Quote from: dfilpus on April 18, 2019, 09:21:27 AM
There is the non-freeway trucks only US 209 Truck Route in Ridgway PA. https://goo.gl/maps/knsdX84NKhKFSVfx8
I like how a GSV car has indeed gone down the "trucks only" route.
Where does it say trucks only though?
There is a sign at the split "NO CARS".
Ok after looking at the whole intersection I saw that. What gets me though is that it says NO TRUCKS but has a runaway ramp for trucks and a speed limit sign for trucks on that stretch that says NO TRUCKS.
Perhaps trucks below the 7,000-pound GVW limit are less likely to run into trouble but still sometimes do? Or perhaps the dedicated truck road was built later because of repeated problems and they didn't remove the provisions they'd already made?
Quote from: 1995hoo on April 20, 2019, 08:55:33 AM
Quote from: Flint1979 on April 19, 2019, 10:09:55 PM
Quote from: dfilpus on April 19, 2019, 10:56:31 AM
Quote from: Flint1979 on April 19, 2019, 10:51:21 AM
Quote from: MNHighwayMan on April 18, 2019, 09:42:47 AM
Quote from: dfilpus on April 18, 2019, 09:21:27 AM
There is the non-freeway trucks only US 209 Truck Route in Ridgway PA. https://goo.gl/maps/knsdX84NKhKFSVfx8
I like how a GSV car has indeed gone down the "trucks only" route.
Where does it say trucks only though?
There is a sign at the split "NO CARS".
Ok after looking at the whole intersection I saw that. What gets me though is that it says NO TRUCKS but has a runaway ramp for trucks and a speed limit sign for trucks on that stretch that says NO TRUCKS.
Perhaps trucks below the 7,000-pound GVW limit are less likely to run into trouble but still sometimes do?
I guess looking at the steep grade doesn't do much justice when you're looking at GSV. I looked at the truck route it's just a one lane northbound road so I'm assuming the climb is uphill going southbound.
A question I have about the US-219 truck route around Ridgway, PA is that why didn't it reconnect with US-219 mainline on the north end? You have to sort of back track into Ridgway to get back on US-219 mainline when it's just an open field in between.
https://www.google.com/maps/@41.4371561,-78.720152,1068m/data=!3m1!1e3
Quote from: Flint1979 on April 20, 2019, 09:02:04 AM
A question I have about the US-219 truck route around Ridgway, PA is that why didn't it reconnect with US-219 mainline on the north end? You have to sort of back track into Ridgway to get back on US-219 mainline when it's just an open field in between.
https://www.google.com/maps/@41.4371561,-78.720152,1068m/data=!3m1!1e3
Click the map over to the terrain view. It looks like they'd have to go uphill again and then back down a very steep downhill to the main road. It looks like the elevation along that curve of the river is around 1400 feet, whereas the stub end of Truck 219 is closer to 1600 feet and it appears it'd have to climb 100 feet uphill before heading down tot he main road. The Street View at the end of Truck 219 confirms the runaway truck ramp there is quite a steep slope.
Edited to add:
Let's see whether this link works. (https://www.google.com/maps/@41.4318161,-78.6875787,13.44z/data=!5m1!1e4) It's zoomed out to show the whole area and you can see the issue I'm noting pretty clearly. (Interesting that Google labels the truck road as a "bypass.")
Edited later to note that link worked fine on my PC but doesn't bring up terrain view in the Google Maps app on my iPad. If all you see is the regular map, go to the menu (on a PC) or the round button (in the app) and switch to terrain view and zoom out enough to see the elevation lines.
Quote from: 1995hoo on April 20, 2019, 09:14:23 AM
Quote from: Flint1979 on April 20, 2019, 09:02:04 AM
A question I have about the US-219 truck route around Ridgway, PA is that why didn't it reconnect with US-219 mainline on the north end? You have to sort of back track into Ridgway to get back on US-219 mainline when it's just an open field in between.
https://www.google.com/maps/@41.4371561,-78.720152,1068m/data=!3m1!1e3
Click the map over to the terrain view. It looks like they'd have to go uphill again and then back down a very steep downhill to the main road. It looks like the elevation along that curve of the river is around 1400 feet, whereas the stub end of Truck 219 is closer to 1600 feet and it appears it'd have to climb 100 feet uphill before heading down tot he main road. The Street View at the end of Truck 219 confirms the runaway truck ramp there is quite a steep slope.
Edited to add: Let's see whether this link works. (https://www.google.com/maps/@41.4318161,-78.6875787,13.44z/data=!5m1!1e4) It's zoomed out to show the whole area and you can see the issue I'm noting pretty clearly. (Interesting that Google labels the truck road as a "bypass.")
Edited later to note that link worked fine on my PC but doesn't bring up terrain view in the Google Maps app on my iPad. If all you see is the regular map, go to the menu (on a PC) or the round button (in the app) and switch to terrain view and zoom out enough to see the elevation lines.
Yeah that does look like a pretty steep climb now that I look at it that way. The GSV from 2008 is a bit blurry to see everything like any GSV image from 2008.
Quote from: Flint1979 on April 20, 2019, 11:12:18 AM
Quote from: 1995hoo on April 20, 2019, 09:14:23 AM
Quote from: Flint1979 on April 20, 2019, 09:02:04 AM
A question I have about the US-219 truck route around Ridgway, PA is that why didn't it reconnect with US-219 mainline on the north end? You have to sort of back track into Ridgway to get back on US-219 mainline when it's just an open field in between.
https://www.google.com/maps/@41.4371561,-78.720152,1068m/data=!3m1!1e3
Click the map over to the terrain view. It looks like they'd have to go uphill again and then back down a very steep downhill to the main road. It looks like the elevation along that curve of the river is around 1400 feet, whereas the stub end of Truck 219 is closer to 1600 feet and it appears it'd have to climb 100 feet uphill before heading down tot he main road. The Street View at the end of Truck 219 confirms the runaway truck ramp there is quite a steep slope.
Edited to add: Let's see whether this link works. (https://www.google.com/maps/@41.4318161,-78.6875787,13.44z/data=!5m1!1e4) It's zoomed out to show the whole area and you can see the issue I'm noting pretty clearly. (Interesting that Google labels the truck road as a "bypass.")
Edited later to note that link worked fine on my PC but doesn't bring up terrain view in the Google Maps app on my iPad. If all you see is the regular map, go to the menu (on a PC) or the round button (in the app) and switch to terrain view and zoom out enough to see the elevation lines.
Yeah that does look like a pretty steep climb now that I look at it that way. The GSV from 2008 is a bit blurry to see everything like any GSV image from 2008.
Having been thru there (and even riding down that ramp once years ago when there was construction that caused it to be used as a detour for NB traffic), that is steep and rough topography. I imagine if it really were what you thought it was at first, they could widen the current ramp, and just build a two-lane bypass. But, alas, no.
Quote from: 1995hoo on April 18, 2019, 10:43:55 PM
Quote from: dfilpus on April 18, 2019, 09:21:27 AM
There is the non-freeway trucks only US 209 Truck Route in Ridgway PA. https://goo.gl/maps/knsdX84NKhKFSVfx8
219, not 209.
Funny he made that mistake as trucks are banned completely from US 209 between Bushkill and Milford with no truck bypass.
Westbound CA 60 at CA 57 in Diamond Bar. Also serves as the general access point for Brea Canyon Rd.
https://www.google.com/maps/@37.9192691,-89.8292965,3a,75y,142.26h,80.8t/data=!3m6!1e1!3m4!1s0LKnCseN4h0N7RePiSE5_Q!2e0!7i13312!8i6656 (https://www.google.com/maps/@37.9192691,-89.8292965,3a,75y,142.26h,80.8t/data=!3m6!1e1!3m4!1s0LKnCseN4h0N7RePiSE5_Q!2e0!7i13312!8i6656)
It's not a freeway, though. Chester, IL
Quote from: Mapmikey on April 18, 2019, 12:46:13 PM
Quote from: froggie on April 18, 2019, 11:08:50 AM
Doesn't the northern I-15/I-215 junction in San Bernardino also have truck-only ramps?
They're labeled as TRUCK BYPASS with no signage compelling trucks to use it and nothing preventing cars from using the truck bypass
I don't think any California truck bypass says "no cars," they're just discouraged.
There's another truck bypass on I-215, on SB I-215/EB CA 60 at the Moreno Valley interchange where the highways split.
Georgia has plans to build truck only lanes along I-75 between Macon and south metro Atlanta. The $1.8 billion dollar project is in preliminary engineering to build two barrier separated lanes in the northbound direction only for 38 miles.
GDOT info page: http://www.dot.ga.gov/BS/Projects/SpecialProjects/I75CVLanes
My blog post about the project: https://movinghenryforward.org/2019/03/12/travels-tuesday-i-75-commercial-vehicle-lanes/
Quote from: ClaytonCarte on April 28, 2019, 02:35:39 PM
Georgia has plans to build truck only lanes along I-75 between Macon and south metro Atlanta. The $1.8 billion dollar project is in preliminary engineering to build two barrier separated lanes in the northbound direction only for 38 miles.
"Constructing two northbound barrier-separated lanes for commercial vehicles on Interstate 75 between McDonough and Macon."
How does that help southbound traffic?
Quote from: Beltway on April 28, 2019, 03:43:25 PM
Quote from: ClaytonCarte on April 28, 2019, 02:35:39 PM
Georgia has plans to build truck only lanes along I-75 between Macon and south metro Atlanta. The $1.8 billion dollar project is in preliminary engineering to build two barrier separated lanes in the northbound direction only for 38 miles.
"Constructing two northbound barrier-separated lanes for commercial vehicles on Interstate 75 between McDonough and Macon."
How does that help southbound traffic?
Likely a phased project until funding can be acquired for southbound.
The I-95 Fredericksburg Rappahannock River Crossing Project was only southbound originally, until a deal with Transurban provided funding for the northbound one. They got lucky with that, but initially the plan was only going to have the southbound crossing until funding for the northbound from traditional sources could be found.
I've been on I-95 in Fredericksburg, Virginia; that stretch needs major help.
Quote from: Flint1979 on April 28, 2019, 08:28:00 PM
I've been on I-95 in Fredericksburg, Virginia; that stretch needs major help.
It's current getting 3 new local lanes (barrier separated from the existing 3 thru lanes) added in each direction between VA-3 and US-17. Construction has been well underway, and should be completed by 2023.
Quote from: ClassicHasClass on April 28, 2019, 12:17:10 PM
Quote from: Mapmikey on April 18, 2019, 12:46:13 PM
Quote from: froggie on April 18, 2019, 11:08:50 AM
Doesn't the northern I-15/I-215 junction in San Bernardino also have truck-only ramps?
They're labeled as TRUCK BYPASS with no signage compelling trucks to use it and nothing preventing cars from using the truck bypass
I don't think any California truck bypass says "no cars," they're just discouraged.
There's another truck bypass on I-215, on SB I-215/EB CA 60 at the Moreno Valley interchange where the highways split.
Looking at that one, if it weren't also acting as the collector ramp from Sycamore Canyon Blvd and Box Springs Rd, I'd've guessed that the 215 didn't need that truck ramp (while the 60's certainly could be justified).
Quote from: sprjus4 on April 28, 2019, 08:48:39 PM
Quote from: Flint1979 on April 28, 2019, 08:28:00 PM
I've been on I-95 in Fredericksburg, Virginia; that stretch needs major help.
It's current getting 3 new local lanes (barrier separated from the existing 3 thru lanes) added in each direction between VA-3 and US-17. Construction has been well underway, and should be completed by 2023.
Wow that'll be crazy but a lot of capacity which is needed in that area. So they are just doing this right outside of Fredericksburg? I forget how many lanes there is north of Fredericksburg going towards D.C.
Quote from: Flint1979 on April 29, 2019, 07:14:02 AM
Quote from: sprjus4 on April 28, 2019, 08:48:39 PM
Quote from: Flint1979 on April 28, 2019, 08:28:00 PM
I've been on I-95 in Fredericksburg, Virginia; that stretch needs major help.
It's current getting 3 new local lanes (barrier separated from the existing 3 thru lanes) added in each direction between VA-3 and US-17. Construction has been well underway, and should be completed by 2023.
Wow that'll be crazy but a lot of capacity which is needed in that area. So they are just doing this right outside of Fredericksburg? I forget how many lanes there is north of Fredericksburg going towards D.C.
I-95 is six-lanes between I-295 in Richmond and US-1 near Woodbridge (about 10 miles south of the Capital Beltway (I-495)), then eight-lanes to I-495. There's also two reversible HO/T lanes between Stafford and the beltway (and eventually will go into Downtown DC starting this fall), and is going to be extended down to Fredericksburg by 2023.
The project I mentioned would bring I-95 up to twelve-lanes for about 5 miles.
Here's the two projects, now being constructed at the same time and will operate as one facility when completed -
http://www.virginiadot.org/projects/fredericksburg/i-95_northbound_rappahannock_river_crossing.asp
http://www.virginiadot.org/projects/fredericksburg/i-95_southbound_rappahannock_river_crossing.asp
Quote from: Bickendan on April 29, 2019, 12:27:46 AM
Quote from: ClassicHasClass on April 28, 2019, 12:17:10 PM
Quote from: Mapmikey on April 18, 2019, 12:46:13 PM
Quote from: froggie on April 18, 2019, 11:08:50 AM
Doesn't the northern I-15/I-215 junction in San Bernardino also have truck-only ramps?
They're labeled as TRUCK BYPASS with no signage compelling trucks to use it and nothing preventing cars from using the truck bypass
I don't think any California truck bypass says "no cars," they're just discouraged.
There's another truck bypass on I-215, on SB I-215/EB CA 60 at the Moreno Valley interchange where the highways split.
Looking at that one, if it weren't also acting as the collector ramp from Sycamore Canyon Blvd and Box Springs Rd, I'd've guessed that the 215 didn't need that truck ramp (while the 60's certainly could be justified).
I'm not sure I understand. I-215 and CA 60 share the roadbed up to the split. Having driven it quite a bit, what would happen is that southbound passenger traffic jockeying for what would become I-215's fast lane (the two rightmost lanes exiting) would run into trucks in those lanes. Caltrans' original solution was to designate a truck lane, but this didn't really eliminate any contention, so they have the bypass which moves truck traffic off before the original I-215 split and the trucks have their own separation.
Quote from: ClassicHasClass on April 30, 2019, 01:01:24 AM
Quote from: Bickendan on April 29, 2019, 12:27:46 AM
Quote from: ClassicHasClass on April 28, 2019, 12:17:10 PM
Quote from: Mapmikey on April 18, 2019, 12:46:13 PM
Quote from: froggie on April 18, 2019, 11:08:50 AM
Doesn't the northern I-15/I-215 junction in San Bernardino also have truck-only ramps?
They're labeled as TRUCK BYPASS with no signage compelling trucks to use it and nothing preventing cars from using the truck bypass
I don't think any California truck bypass says "no cars," they're just discouraged.
There's another truck bypass on I-215, on SB I-215/EB CA 60 at the Moreno Valley interchange where the highways split.
Looking at that one, if it weren't also acting as the collector ramp from Sycamore Canyon Blvd and Box Springs Rd, I'd've guessed that the 215 didn't need that truck ramp (while the 60's certainly could be justified).
I'm not sure I understand. I-215 and CA 60 share the roadbed up to the split. Having driven it quite a bit, what would happen is that southbound passenger traffic jockeying for what would become I-215's fast lane (the two rightmost lanes exiting) would run into trucks in those lanes. Caltrans' original solution was to designate a truck lane, but this didn't really eliminate any contention, so they have the bypass which moves truck traffic off before the original I-215 split and the trucks have their own separation.
The bypass also allows CA 60 eastbound truck traffic to exit from the right rather than crossing the I-215 car lanes
OK, I know I am WAY late with this comment, but the GPS told us to use the truck only lane in ridgeway. So we did. Didn't realize till now that was truck only!
Quote from: 1995hoo on April 20, 2019, 08:55:33 AM
Perhaps trucks below the 7,000-pound GVW limit are less likely to run into trouble but still sometimes do? Or perhaps the dedicated truck road was built later because of repeated problems and they didn't remove the provisions they'd already made?
Judging by that particular ramp's state of disrepair, I'd say the latter.
Quote from: MCRoads on May 01, 2019, 11:29:59 AM
OK, I know I am WAY late with this comment, but the GPS told us to use the truck only lane in ridgeway. So we did. Didn't realize till now that was truck only!
Were you going from PA-120 to US-219 or vice versa, or did you go through Ridgway after using the truck road? If the former, the truck bypass is probably a lot faster than going though town.
Quote from: MNHighwayMan on April 18, 2019, 09:42:47 AM
Quote from: dfilpus on April 18, 2019, 09:21:27 AM
There is the non-freeway trucks only US 209 Truck Route in Ridgway PA. https://goo.gl/maps/knsdX84NKhKFSVfx8
I like how a GSV car has indeed gone down the "trucks only" route.
Its kinda common in the Newhall Pass truck route lol
Quote from: Mapmikey on April 18, 2019, 12:46:13 PM
Quote from: froggie on April 18, 2019, 11:08:50 AM
Doesn't the northern I-15/I-215 junction in San Bernardino also have truck-only ramps?
They're labeled as TRUCK BYPASS with no signage compelling trucks to use it and nothing preventing cars from using the truck bypass
The truck bypasses are the only way to access some of the exits at many interchanges. For example, Kenwood Drive at I-15/I-215, and Lake Forest Parkway at I-5/I-405.
The idea behind most of the CA truck bypasses, as others may have mentioned, is that in a complicated interchange where multiple right lanes are exiting, they would prefer for trucks not to be merging to the left at the same time to stay on the roadway to the left. If there is a ramp from the right that will allow for some slower traffic to avoid all of these lane changes, it is safer for everyone. Trucks are required to use it so that they don't camp out in the left lanes unnecessarily. Other traffic may use it, particularly those who may have just entered the freeway.
Here is an illustration. Imagine a freeway with 6 lanes in one direction. (In CA this is actually pretty common, especially at these major splits.) A split is coming up that would normally provide for the left 3 lanes to go to Hwy A and the right 3 lanes to go to Hwy B. To prevent all the trucks (as well as other slow traffic and traffic that may have just entered the 6 lane behemoth from the right) that want Hwy A to start making 3 lane changes in a short distance, a bypass to the right is created.
With the bypass in place, the split is generally re-signed as 2 left lanes to Hwy A, the next 3 lanes to Hwy B, and the right lane as the bypass to Hwy A for trucks and others who can't merge left in time safely. Trucks are encouraged to use the #5 lane (from the left) to access Hwy B and the #6 lane (i.e. the bypass) for Hwy A. This is a great device and it is a shame that it isn't used at more interchanges.
This is analogous to HOV ramps that may tend to do the same thing, to prevent traffic that is exiting the HOV lane from making multiple lane changes, a fly-over is created to bring HOV traffic to the road that goes to the right. An example of this (for HOVs not trucks) is where I-270 SB splits in Rockville, MD between 270 towards Silver Spring and the 270 spur towards Northern Virginia.
(ETA: In the reverse direction [where the 2 split highway merge together], assume Hwy A merges in on the left and Hwy B merges in on the right. If you are on Hwy A and want to exit at the first exit downstream from the merge, you will have to merge 3 lanes across all of Hwy B traffic. The truck bypass will be useful in this direction as well, since it will deposit the right lane of Hwy A to the right of all of the traffic of Hwy B. Useful for cars as well as trucks and any slow moving vehicles.
IMO, for those unfamiliar with the concept, the best ones to view by looking at GSV and satellite imagery are at the 5/405 merge in the northern San Fernando Valley. The truck bypass is implemented very well there.)
CA-99 @I-5 interchange in Kern County has a section for truck bypass for the southbound lanes for I-5.
I-80 @ CA-12 in Fairfield,CA has special lanes for trucks due to the Truck Scales/inspection areas there are truck ramps for eastbound CA-12 and I-80.
Truck escape ramps :bigass:
SM-J737T
Oregon has one on I-5 north at OR 99W, keeping trucks from moving (at the time) 3 lanes to the right as I-5 started climbing Capitol Hill. Now it's a two lane maneuver.
Quote from: Bickendan on June 08, 2019, 03:58:35 PM
Oregon has one on I-5 north at OR 99W, keeping trucks from moving (at the time) 3 lanes to the right as I-5 started climbing Capitol Hill. Now it's a two lane maneuver.
Quote from: Bickendan on April 18, 2019, 06:45:53 AM
Two in Portland: I-5 north at OR 99W (exit 294)
US 26 west at Sylvan/Canyon Rd (OR 8) (exit 71)
Don't forget the I-5 south and CA 99 south truck ramps at the interchange north of Wheeler Ridge.
SM-J737T