AARoads Forum

National Boards => General Highway Talk => Topic started by: CoreySamson on March 14, 2021, 06:32:15 PM

Title: A Right Turn Only Lane And A Slip Lane Doing The Same Movement?
Post by: CoreySamson on March 14, 2021, 06:32:15 PM
I thought this was interesting enough to have its own thread: a right turn only lane and a slip lane doing the same movement...

https://www.google.com/maps/@29.1631833,-95.4523737,3a,25.6y,23.51h,87.14t/data=!3m6!1e1!3m4!1s8uO5SGWHPbekSSaGBKssSA!2e0!7i16384!8i8192

This exists here to provide Western Avenue with access from the light without creating a dangerous turning situation from the slip lane across the traffic. I was wondering how many other junctions with this setup exist around the world. Any other examples?
Title: Re: A Right Turn Only Lane And A Slip Lane Doing The Same Movement?
Post by: sprjus4 on March 14, 2021, 07:11:27 PM
I-64 West / US-13 Northampton Blvd off ramp (https://www.google.com/maps/@36.8739619,-76.1961252,3a,49y,349.84h,87.21t/data=!3m6!1e1!3m4!1sOrQUG4ePawU2LSlUdQ5MXQ!2e0!7i16384!8i8192) in Norfolk, VA.

The slip right turn lane is intended for traffic turning right onto Northampton Blvd to then turn right again onto Wesleyan Dr, the middle and left right turn lanes are intended for traffic turning right onto Northampton Blvd and continuing, and the left right turn lane is intended for traffic turning right onto Northampton Blvd then left onto Premium Outlets Blvd. All of these movements are outlined on an overhead sign.

Since there's no restrictions on the slip lane though, it's not uncommon for through traffic on Northampton Blvd to use it then merge into traffic to avoid the signal. If they want through traffic to turn at the light and to truly restrict that slip lane for traffic destined to Wesleyan Dr, then they need to put up a barrier or something along those lines.
Title: Re: A Right Turn Only Lane And A Slip Lane Doing The Same Movement?
Post by: 1995hoo on March 14, 2021, 08:29:28 PM
We had a discussion about a similar location some years back. (https://www.aaroads.com/forum/index.php?topic=23935.msg2438751#msg2438751) The explanation was similar–there's a left turn just around the corner.
Title: Re: A Right Turn Only Lane And A Slip Lane Doing The Same Movement?
Post by: Mapmikey on March 14, 2021, 08:42:22 PM
The Fredericksburg area has a couple and I know of one in Manassas.

The newest one of these, I-95 SB ramp to VA 3 WB is really more about the right turn that comes quickly, as the weaving on VA 3 was a nightmare most any time of the day.  There is a left turn at that intersection but it is only for Burger King and a small hotel, which I'm sure was difficult when this was still a free-flowing clover interchange.

Triple right turn lane, which is to stop backing up onto the mainline of 95 (C/D lane eventually) in afternoon rush!  https://goo.gl/maps/GFS3dA9J5792mKvA6

The signal movement at that intersection is complex, as the two sets of right turn signals are not green at the same time
https://goo.gl/maps/aX97f9yLTdPupVEt8

Title: Re: A Right Turn Only Lane And A Slip Lane Doing The Same Movement?
Post by: TheHighwayMan3561 on March 14, 2021, 09:25:06 PM
I've never seen this, since a lot of the time signage expressly prohibits taking a right turn if you miss the slip lane.
Title: Re: A Right Turn Only Lane And A Slip Lane Doing The Same Movement?
Post by: Big John on March 14, 2021, 09:51:23 PM
Smyrna, GA: https://goo.gl/maps/Bvn1iqQSMfhN9Nwz7
Title: Re: A Right Turn Only Lane And A Slip Lane Doing The Same Movement?
Post by: webny99 on March 15, 2021, 08:39:03 AM
I suspect this isn't what's being looked for, but there would be many more examples if we included roundabouts.
Title: Re: A Right Turn Only Lane And A Slip Lane Doing The Same Movement?
Post by: jeffandnicole on March 15, 2021, 08:41:11 AM
In exaggerated examples, some NJ jughandles allow right turns at the jughandle before the intersection, then again at the intersection itself.  I say exaggerated, as those double right turn options are usually much further in distance than the examples mentioned by the OP and others.
Title: Re: A Right Turn Only Lane And A Slip Lane Doing The Same Movement?
Post by: ilpt4u on March 16, 2021, 03:31:33 PM
One I passed on the way to STL Airport parking this afternoon. This is the exit ramp from I-70 WB to Natural Bridge Road, where some of the Airport Economy Parking options are

https://goo.gl/maps/bconaEJMCqaNyMoEA
Title: Re: A Right Turn Only Lane And A Slip Lane Doing The Same Movement?
Post by: rickmastfan67 on March 16, 2021, 07:50:03 PM
This is the only one I know of in the Pittsburgh area. (https://goo.gl/maps/UJK6VKMroYDknmBM6)  It's on US-19 going NB @ Pine Creek Road.  My guess it was done to allow another option for people to turn left due to the very short left turn lane.  That, or the former Ice Cream place that was there at the corner where the First Commonwealth Bank is now located.
Title: Re: A Right Turn Only Lane And A Slip Lane Doing The Same Movement?
Post by: SkyPesos on March 16, 2021, 09:30:05 PM
I-275 EB exit 47 ramp (https://www.google.com/maps/@39.2850053,-84.3718776,3a,75y,136.8h,84.89t/data=!3m6!1e1!3m4!1sk9LgQdpDl0MYYSOHNCZLqA!2e0!7i16384!8i8192)
Title: Re: A Right Turn Only Lane And A Slip Lane Doing The Same Movement?
Post by: Bruce on March 17, 2021, 01:09:02 AM
Plenty of them around the Seattle metro area, especially for interchanges where buses need to use the outside lane to avoid merging across too many lanes.