Two-way Ramps vs. Routing [Split from WME Validator]

[AlanOfTheBerg]

I would like to see "2-way ramp" removed from the error list for US.

[SuperDave1426]

I would like to see "2-way ramp" removed from the error list for US.

Why? Where in the US is a freeway ramp ever two-way? <puzzled look>

[CBenson]

I don't see why a ramp should be split just because its a ramp. For instance, I don't see why the two way portion of a trumpet interchange shouldn't be mapped with a two-way ramp segment. But eventually they all seem to get edited to two one-way segments.

[GizmoGuy411]

I would like to see "2-way ramp" removed from the error list for US.

I agree. Like them or not they exist. I can't provide a PL at the moment, but look at I-75 Exit 14 Elm Ave in Monore Michigan for one example for both N and S sides.

Just painted lines. No physical divider even.

[AlanOfTheBerg]

I would like to see "2-way ramp" removed from the error list for US.

Why? Where in the US is a freeway ramp ever two-way? <puzzled look>

https://www.waze.com/editor/?zoom=5&lat ... 79&env=usa

There's no reason for that small area to be packed with two 1-way segments. Added complexity with no added value goes against the stated Waze Goals. Ramp segments like this are all over and will stay that way because there is no good reason not to.

[SuperDave1426]

I would like to see "2-way ramp" removed from the error list for US.

I agree. Like them or not they exist. I can't provide a PL at the moment, but look at I-75 Exit 14 Elm Ave in Monore Michigan for one example for both N and S sides.

Just painted lines. No physical divider even.

I found it. Here's your permalink.

And, wow. Never seen 'em like that before. Ok, thanks for providing an example that answered my puzzled question.

[SuperDave1426]

I would like to see "2-way ramp" removed from the error list for US.

Why? Where in the US is a freeway ramp ever two-way? <puzzled look>

https://www.waze.com/editor/?zoom=5&lat ... 79&env=usa

Thanks for the extra visual aid.

There's no reason for that small area to be packed with two 1-way segments. Added complexity with no added value goes against the stated Waze Goals. Ramp segments like this are all over and will stay that way because there is no good reason not to.

No argument there - in both cases, the road structure itself suggests a two-way road on the map.

Question: In cases such as those, wouldn't it just make more sense to make them two-way streets until get to the point where it actually splits into on/off ramps attaching to the freeway? Is there a reason why that stretch of road segment must be type ramp?

[CBenson]

Question: In cases such as those, wouldn't it just make more sense to make them two-way streets until get to the point where it actually splits into on/off ramps attaching to the freeway? Is there a reason why that stretch of road segment must be type ramp?

Not sure they have to be ramp, but they shouldn't be streets. If not ramp, they should be typed at least as high as the lower of the types that they are connecting so not to interfere with the long route pruning routines. But, ramps usually just look better to me in those examples to me.

[GizmoGuy411]

Around me, ramps have small highway maintenance signs that define them as ramps. If there sole purpose is to serve the freeway, and there is no local name implying that is a street, then I would call it a ramp.


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[SuperDave1426]

Question: In cases such as those, wouldn't it just make more sense to make them two-way streets until get to the point where it actually splits into on/off ramps attaching to the freeway? Is there a reason why that stretch of road segment must be type ramp?

Not sure they have to be ramp, but they shouldn't be streets. If not ramp, they should be typed at least as high as the lower of the types that they are connecting so not to interfere with the long route pruning routines. But, ramps usually just look better to me in those examples to me.

Well, substitute "Primary Street/Minor Highway/etc" where I said "street" in my original question, then.

Yea, ramp looks good given what it's leading up to; I get what you're saying there. However, in the grand scheme of things, what I saw in those examples look to me like a road leading up to the actual ramps going on/off the freeway and is not actually part of the ramp itself.

Having the validator not highlight a two-way ramp just because of the examples that I've seen so far seems like a good way of increasing the chances of someone missing a two-way ramp that actually shouldn't be two-way, without actually providing any real benefit.