To map or not to map - Roundabout in middle of road

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Re: To map or not to map - Roundabout in middle of road

Postby jasonh300 » Sun Nov 18, 2012 10:41 pm

CrackedLCD wrote:Since the OP issue was solved, let me tack on a slightly different type of roundabout to this thread. Check out this teeny tiny roundabout on an intersection in Mobile, AL. (The link is Bing, not Waze, for clarity.)

There are a few of these in this particular neighbourhood and I'm wondering if anything special should be done with them. The original map setup had each of intersections as "hand drawn" circles around these little nubs, with mixed directionality and missing names on two of the four segments. I went through and deleted all that faff and just connected them as regular intersections. Should I be going back and fixing these into actual real roundabouts in Waze?


I would ignore them completely. Otherwise, traffic going straight will get the instruction to take the 2nd exit, etc. These really are more like a median than a roundabout, and in that case, they don't qualify for splitting either.

It looks to me like traffic going straight wouldn't even have to veer much to the right to avoid it, and I would also guess that if it's a quiet area, most people turning left aren't going to keep to the right all the way around the median...they're probably going to shortcut it to the left.

Those were discussed a bit in this thread.
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Re: To map or not to map - Roundabout in middle of road

Postby AndyPoms » Sun Nov 18, 2012 10:40 pm

In CT, that's officially (CT DOT) not a roundabout, it's a "traffic calming device"... Doesn't keep people from not knowing how to navigate them (go around like a traffic circle)... Personally I think it's too small to try to map as a roundabout...
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Re: To map or not to map - Roundabout in middle of road

Postby CrackedLCD » Sun Nov 18, 2012 9:17 pm

Since the OP issue was solved, let me tack on a slightly different type of roundabout to this thread. Check out this teeny tiny roundabout on an intersection in Mobile, AL. (The link is Bing, not Waze, for clarity.)

There are a few of these in this particular neighbourhood and I'm wondering if anything special should be done with them. The original map setup had each of intersections as "hand drawn" circles around these little nubs, with mixed directionality and missing names on two of the four segments. I went through and deleted all that faff and just connected them as regular intersections. Should I be going back and fixing these into actual real roundabouts in Waze?
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Re: To map or not to map - Roundabout in middle of road

Postby AndyPoms » Thu Nov 15, 2012 8:41 pm

WeeeZer14 wrote:2.) The road appears to change names here. The roundabout makes that change more obvious and stops (or slows down) an editor from trying to "fix" things and propagate one name to the other segment to delete the junction representing the current name change.
The road doesn't change names at the roundabout, the road changes names at the town border which is to the west of the roundabout. So we're still going to have the extra node "issue", but I don't think that is enough to warrant not mapping it...

WeeeZer14 wrote:1.) It does represent an "obstacle" that must be dealt with. Being told your next turn is in 3 miles and then coming upon the roundabout in the dark of night could be surprising, confusing, or even dangerous (if the person is stupid and relying on Waze too much).
Very good point...
WeeeZer14 wrote:3.) Someone is going to think there should be a roundabout there. Do you trust the average editor to do it right?
Someone already tired to (and did it incorrectly) after my original post... :roll:
AlanOfTheBerg wrote:Despite not liking having to do it, I would map it. WeeeZer14 and others have posted good reasons why it should be mapped.
As always, Alan does a good job so summarizing everything, I'll be mapping this shortly...
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Re: To map or not to map - Roundabout in middle of road

Postby AlanOfTheBerg » Thu Nov 15, 2012 7:17 pm

Despite not liking having to do it, I would map it. WeeeZer14 and others have posted good reasons why it should be mapped.
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Re: To map or not to map - Roundabout in middle of road

Postby WeeeZer14 » Thu Nov 15, 2012 6:58 pm

Either way would work I agree, but I think I'd lean slightly towards mapping it.

1.) It does represent an "obstacle" that must be dealt with. Being told your next turn is in 3 miles and then coming upon the roundabout in the dark of night could be surprising, confusing, or even dangerous (if the person is stupid and relying on Waze too much).

2.) The road appears to change names here. The roundabout makes that change more obvious and stops (or slows down) an editor from trying to "fix" things and propagate one name to the other segment to delete the junction representing the current name change.

3.) Someone is going to think there should be a roundabout there. Do you trust the average editor to do it right? ;)

I think it is really #2 that pushes me over the edge here.
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Re: To map or not to map - Roundabout in middle of road

Postby Kuhlkatz » Thu Nov 15, 2012 3:42 pm

If the focus is on driver awareness and safety, I'd say map it.
Your Wazer might not make a u turn there, but it would at least warn them of the possibility of a driver from the opposite end making a u turn in front of their noses, instead of driving across as they would expect in 99 percent of the cases.
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Re: To map or not to map - Roundabout in middle of road

Postby iainhouse » Thu Nov 15, 2012 3:41 pm

I'll chuck in my 8c-worth (that's exchange rates for you :) ). Feel free to ignore the foreigner! ;)

Even with no choices as to direction, the driver still has to manouvre the junction - including giving way to someone else who does decide to turn around here. I would tend to map it so that instructions actually match what's there.

Also, in this country at least, you will get URs saying "missing junction" if you don't map it - I've dealt with several myself.
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Re: To map or not to map - Roundabout in middle of road

Postby CBenson » Thu Nov 15, 2012 3:31 pm

I have not been mapping roundabouts with less than three streets connected to them.
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Re: To map or not to map - Roundabout in middle of road

Postby AndyPoms » Thu Nov 15, 2012 10:08 am

Ikkabar wrote:Is it possible that there will soon be a new housing development to the north or south, accessed off the roundabout?
Not likely...

Ikkabar wrote: If there is then I would map it, otherwise I'd leave it as it is, and only map it if there are a lot of UR's for it.
Only that one that's there in the image (in the last year or so...)
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