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Author Topic: Offramps Wider than the Through Route  (Read 1487 times)

sprjus4

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Re: Offramps Wider than the Through Route
« Reply #25 on: June 11, 2020, 08:52:08 PM »

At least with the latter example, you can make an argument that it's a ramp, although it's hardly "wider"... both the ramp and the through route have two lanes.
The ramp to I-70 West is 2 lanes where the through lane to US-30 East is 1 lane.

Plenty of examples at traditional interchanges would exist also. I think this thread is more focused on freeways. I-70 is technically an interstate through there, but is not freeway-grade.
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jay8g

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Re: Offramps Wider than the Through Route
« Reply #26 on: June 14, 2020, 04:10:06 AM »

I-705 in downtown Tacoma -- between the surprisingly bad signage (this is the only sign for the exit) and the geometry here, it really looks like the mainline goes up the A St ramp.

Also, on the other side of I-5, there's SR 7 at the 38th St interchange/freeway stub, but this one only kind of counts as two of the three lanes on the "ramp" end rather abruptly beyond the split.
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Occidental Tourist

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Re: Offramps Wider than the Through Route
« Reply #27 on: June 15, 2020, 11:57:18 PM »

I-705 in downtown Tacoma -- between the surprisingly bad signage (this is the only sign for the exit) and the geometry here, it really looks like the mainline goes up the A St ramp.

Also, on the other side of I-5, there's SR 7 at the 38th St interchange/freeway stub, but this one only kind of counts as two of the three lanes on the "ramp" end rather abruptly beyond the split.
Aren’t there faster ways to get to Mt. Rainer than taking an arterial highway through a densely-populated suburb?
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roadman65

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Re: Offramps Wider than the Through Route
« Reply #28 on: June 17, 2020, 02:25:10 AM »

Exit 13 on I-280 in Newark, NJ.  Built originally for the never built NJ 75 freeway and the fact east of there it follows the old NJ 58 Expressway that was built to four lanes, it has this awkward situation.
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Sheryl Crowe

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Re: Offramps Wider than the Through Route
« Reply #29 on: June 17, 2020, 05:48:27 PM »

Another good example in Texas: The western end of I-30. I-20 continues eastward with two lanes, although from a one-lane exit. I-30 begins heading eastward with three lanes. This applies as the inverse heading West, where I-30 joins I-20 with three lanes and I-20 continues west with one lane.

roadman65

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Re: Offramps Wider than the Through Route
« Reply #30 on: June 17, 2020, 09:46:13 PM »

Oh the Upper Level exit for NJ Route 4 in Fort Lee, NJ departing the GWB has I-95 S Bound into one lane while NJ 4 takes 2 lanes. 
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Sheryl Crowe

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jmacswimmer

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Re: Offramps Wider than the Through Route
« Reply #32 on: June 18, 2020, 01:52:17 PM »

I-287 South at exit 66 in New Jersey, just after leaving the NYS Thruway.
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crispy93

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Re: Offramps Wider than the Through Route
« Reply #33 on: June 25, 2020, 11:53:00 AM »

I-287 South at exit 66 in New Jersey, just after leaving the NYS Thruway.

I've always found the signage here to be confusing. There's no mention that lane 3 is an option lane (well, there is a diagrammatical advance sign but it shows the ramp for 17 as being 2 lanes when it's actually 3), so I see a lot of unnecessary last-minute merges into the #2 lane to get on 17 south. A set of APLs would clean up nice here.

« Last Edit: June 25, 2020, 11:58:27 AM by crispy93 »
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jmacswimmer

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Re: Offramps Wider than the Through Route
« Reply #34 on: June 25, 2020, 12:24:19 PM »

I-287 South at exit 66 in New Jersey, just after leaving the NYS Thruway.
I've always found the signage here to be confusing. There's no mention that lane 3 is an option lane (well, there is a diagrammatical advance sign but it shows the ramp for 17 as being 2 lanes when it's actually 3), so I see a lot of unnecessary last-minute merges into the #2 lane to get on 17 south. A set of APLs would clean up nice here.

That mile between the Thruway and exit 66 always seems to be an absolute mess in my experience.  When driving to/from New England, I typically pass thru coming from the Tappan Ze...er, Mario M. Cuomo Bridge and continuing onto 287 south.  Usually my approach is to immediately shift into the lane that enters from that u-turn ramp and continues onto 287 south, in order to get out of the way of all the weaving traffic.
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Ben114

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Re: Offramps Wider than the Through Route
« Reply #35 on: June 25, 2020, 12:47:14 PM »

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vdeane

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Re: Offramps Wider than the Through Route
« Reply #36 on: June 25, 2020, 01:34:16 PM »

US 6 and MA 3 in Bourne.
According to us maybe, but MassDOT considers MA 3 to be the through movement and will be resigning US 6 as the exit with the conversion to mile-based numbers.
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Please note: All comments here represent my own personal opinion and do not reflect the official position of NYSDOT or its affiliates.

bwana39

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Re: Offramps Wider than the Through Route
« Reply #37 on: July 03, 2020, 12:11:23 PM »

https://goo.gl/maps/i4YMtCCG7dR4hs7W8
Technically through lanes are no longer the same road, though, as I-87 designation end around that point.

This example is really more TOTSO.
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sparker

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Re: Offramps Wider than the Through Route
« Reply #38 on: July 03, 2020, 08:30:03 PM »

CA 17 SB at the Hamilton Ave. exit in Campbell is 5 lanes wide; the center lane splits between the continuing main carriageway and the ramp, so initially there are 3 lanes on each side of the gore.  But a few yards beyond the gore point original Lane #3 (leftmost on the ramp) adds an additional left-turn lane to EB Hamilton (it's a very short ramp as well).  So at the termination of the ramp there are 4 total lanes vs. 3 still on the freeway.
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7/8

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Re: Offramps Wider than the Through Route
« Reply #39 on: July 03, 2020, 09:08:30 PM »

On the 400 southbound in Toronto, Ontario, there's 4 lanes for the 401 and only 2 lanes continue on the 400 (which soon becomes Black Creek Drive). Also, the through lanes are on the right.

https://www.google.ca/maps/@43.7286832,-79.5248167,3a,25.3y,167.07h,91t/data=!3m6!1e1!3m4!1sidt6RrhJjOV4bnX8E5ieCg!2e0!7i16384!8i8192
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Re: Offramps Wider than the Through Route
« Reply #40 on: July 04, 2020, 11:38:31 PM »

I-10 eastbound in Baton Rouge at the I-10/I-12 split. 2 lanes for I-10, and 3 exiting for I-12. A third lane for 10 quickly appears just past the split.


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