Road Types (USA) – comprehensive overhaul of drivable roads

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Re: Road Types (USA) – comprehensive overhaul of drivable ro

Postby qwaletee » Fri Feb 20, 2015 1:36 am

dbraughlr wrote:
bart99gt wrote:I never draw in the "Emergency Vehicle Only" crossovers (paved or unpaved) on limited access roads. Since a typical driver can't legally use it under normal circumstances, there's little point to even have them there.

Can anyone speak to what policy exists for crossovers which are legal and useful?


Why wouldn't that be mapped like any other AGC? Well, maybe a a dirt road freeway :)
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Re: Road Types (USA) – comprehensive overhaul of drivable ro

Postby qwaletee » Fri Feb 20, 2015 9:20 pm

That wasn't really an answer, was it?
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Re: Road Types (USA) – comprehensive overhaul of drivable ro

Postby qwaletee » Mon Feb 23, 2015 3:06 pm

Pretty much what I said - why not map like any other AGC?
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Re: Road Types (USA) – comprehensive overhaul of drivable ro

Postby qwaletee » Mon Feb 23, 2015 10:30 pm

sketch wrote:
qwaletee wrote:
dbraughlr wrote:Can anyone speak to what policy exists for crossovers which are legal and useful?

Why wouldn't that be mapped like any other AGC? Well, maybe a a dirt road freeway :)

*snip* There are two reasons for this: (1) except in an MUTI or RCUT, median U turns are only used to get from a start point or to a destination when the route goes the other way on a divided roadway*snip* .


I don't quite get this. Did you mean to say that only MUTI and RCUT are designed to supply a route directly to a different road on the other side? Because any type of U-turn potentially provides indirect access to roads that are connected to the other side of a dual carriageway, so long as it is a "U-turn" that Waze can make. That includes median U-turns (box intersections that don't qualify for any of the special handling rules, MUTI, RCUT, crossover) or non-median (jughandles, traffic circles).

Re: the "dirt road" above, there actually is one. You can make it out in Sat, and once you know it is there, you can even make it out a bit in GSV. The growth at the side of the road masks it, but you can see the strip if you look past that.
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Re: Road Types (USA) – comprehensive overhaul of drivable ro

Postby qwaletee » Mon Feb 23, 2015 11:28 pm

I suppose. I've seen exceptions - long stretch between through intersections on a divided highway, but I suppose for exceptions, we would have to upgrade whatever U-turn mechanism was being used.
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Re: Road Types (USA) – comprehensive overhaul of drivable ro

Postby qwaletee » Wed Feb 25, 2015 7:23 pm

Says the guy running L&S.

I think I'll mosey on over to the suggestion box and make a feature request for vehicle/road type restrictions of "emergency vehicles." That will allow Eric to use Waze in his rig. Have fun though when your destination is an accident scene, I don't think Waze will help much.
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Re: Road Types (USA) – comprehensive overhaul of drivable ro

Postby qwaletee » Fri Feb 27, 2015 3:55 am

DB,

I looked it over, and that's not quite true. You can easily run between north and south sides of town, as there are several streets that have bridges for the Interstate. I do agree that if you hit the Interstate and realize you forgot to turn off the oven, you would have a long "detour" to get back home without the turnaround. But do you really need Waze routing for that?
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Re: Road Types (USA) – comprehensive overhaul of drivable ro

Postby qwaletee » Tue Jul 07, 2015 3:03 am

Since we know that setting a partial restriction that does not allow private car usage effectively restricts s the turn today, it will function properly, and private road is not needed.
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Re: Road Types (USA) – comprehensive overhaul of drivable ro

Postby qwaletee » Sun Nov 01, 2015 10:32 pm

This sounds like a good addition to explore. In general, segments in box intersections and the like need to follow similar rules to AGC, which is coarsely summarized as the lower of the two highest segment types being connected.

So, for example, usually the end of an MH roadway that turns into, say, mH, will be connected at an intersection that contains another MH or a Fwy. In that case, the crossing segment needs to be MH for continuity. If for some reason the MH ended at a junction that was all mH for the other connections, the crossing segment would not need to be MH.
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Re: Road Types (USA) – comprehensive overhaul of drivable ro

Postby qwaletee » Fri Nov 06, 2015 5:19 am

That's inadequate, because it only covers one aspect of AGCs. Here are a few reasons to posibly use AGCs:

* Waze has thrown MP in recent memory for missing road
* path through AGC is sufficiently far from the main road(s) that you expect possible future MPs even if there are none now
* Traffic backs up and the turn instruction comes too late (may not be needed when Junction Box goes live)
* Theoretical gore extension line requires lane entry further back than instruction would indicate
* Presence of LGS/BGS
* Known GPS signalling issues
* Other need to add a unique instruction for a turn

t0cableguy wrote:I think the rule for AGC's should be if the divider doesn't start more than xx feet before the stop line then it should not be mapped.

In some situations they are needed because of crazy intersection angles, but most of the time a true 90* intersection they do not provide anything additional.


[ img ]
NOO (drive this 2 days a week.. no way this needs any earlier prompt.

[ img ]
This one is directly south, and I have had an itch for a while to remove them... but no UR's so I leave it be.
Last edited by qwaletee on Fri Nov 06, 2015 6:20 am, edited 1 time in total.
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