[Page Update] Junction Style Guide

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Re: [Page Update] Junction Style Guide

Postby tonestertm » Fri May 23, 2014 3:49 am

PesachZ wrote:As I'm testing more, it appears any split with more than two options (I tested three and four way splits in both left and right configurations) will give the left most branch 'keep left' and all the rest of the branches a 'keep right'. This is regardless of the actual angle of the turn.

Does this hold true if one of the "right-keeping" roads has the same name as s-in?
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Re: [Page Update] Junction Style Guide

Postby tonestertm » Sat Jun 21, 2014 1:31 am

Request for a minor clarifying correction:

Junction Style Guide: Loop Rules wrote:The only work around is to either lock the segments at a higher level or ...

I'd like to suggest that this be changed to either rank or Lock level. I know the old "Level" has been changed to "Elevation", but this seems more accurate.
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Re: [Page Update] Junction Style Guide

Postby top_gun_de » Wed Sep 23, 2015 6:00 pm

Speaking for my country, there has been a process over the years. We started with simple answers, and have arrived at a point where we apply something like "fuzzy-logic".

Some key factors which are relevant:

- the "turn now"-instruction shall never be so late that turning the wheel is illegal or unsafe.
- the turn now shall not be so early that there is confusion between alternative exits
- if traffic is expected to stand on the straight lane or the ramp (ie due to traffic lights), short ramps are preferable to reduce errors from misplacement after gps issues
- if ramps are preceded by distance poles, drivers appreciate a match of displayed data with real-world signs.

For us, that means that we start freewayramps shortly after the beginning of the striped line, and that we start ramps on major highways late if we expect drivers to stop for more than a few seconds. The rest is somewhere in between.

Your local mileage will vary, based on national or local customs.

Best regards,

Detlev
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Re: [Page Update] Junction Style Guide

Postby top_gun_de » Thu Sep 24, 2015 7:00 pm

codgerd wrote:
top_gun_de wrote:For us, that means that we start freewayramps shortly after the beginning of the striped line, and that we start ramps on major highways late if we expect drivers to stop for more than a few seconds. The rest is somewhere in between.


Interesting. So the accepted usage in Germany is to put the junction node at the start of the striped line (with exceptions as described in your post).

We have, therefore, two end-member solutions apparently in common usage:
1. junction node is placed at the beginning of the gore (where the striped line dividing the exit lane from the roadway changes to solid)
2. junction node is placed at the beginning of the exit lane, where the striped line first begins

and we have the current wiki guidance, which is in between these two solutions, although much closer to (1).

kentsmith9 tells me that changes have been proposed for this section of the wiki. Is there any way to view these proposed changes to see the new proposed guidance under consideration?


As I said, there is no simple answer. We only do this on freeways, any other ramps have their nodes further behind.

I listed aspects which are actually partly in a conflict.

I can't speak for other countries, but in Germany, we never have traffic lights or planned stops on Freeways. In Russia, it's different, as I know from experience. These differences show why it's no possible to make global stAndards when there is no global standard for road construction, traffic rules and driver's habits.

Best regards,

Detlev
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Re: [Page Update] Junction Style Guide

Postby top_gun_de » Thu Oct 01, 2015 4:45 am

You are discussing a US-specific fork of the page?
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Re: [Page Update] Junction Style Guide

Postby top_gun_de » Thu Oct 08, 2015 4:32 am

Back in the days of Windows Mobile, audio latency was a big issue for navigation. This may well be a driver/hardware issue., not simply a platform issue.
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Re: [Page Update] Junction Style Guide

Postby voludu2 » Sun Apr 26, 2015 8:05 pm

RE: Loop Roads

I would like to clarify, organize, and simplify this section:
https://wiki.waze.com/wiki/Junction_Style_Guide#Loops

As follows:
  1. If this is going to be a loop discussion, it should lead with two images -- a dead-end loop and a loop with at least two segments sticking out of it (like a u-shaped side street). The definition of loop would make more sense in that case.
  2. I want to make "two segment loop" prominent, something we can link to for beginning editors.
    I want a single term to facilitate better communication
    I see the term "Same Endpoint Drivable Segments" (SEDS for short?) in validator
    I see the term "same connection segments" in toolbox
    Some respected senior editors don't recognize that term. Makes communication difficult.
    "Two Segment Loop" is simple English, and is very close to the phrase already used in this wiki page.
  3. According to the definition of loop given here, a roundabout is a type of loop. Any list of loops should contain roundabouts.
  4. It does not belong under "dead end roads". The definition of loop currently given includes loops that are not dead ends
  5. It doesn't even really belong in "junction style guide" A loop is not a kind of a junction, and is not directly related to controlling turn instructions. I would like to explore the possibility of finding a new home for this material, somewhere other than "junction style guide".
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Re: [Page Update] Junction Style Guide

Postby voludu2 » Wed May 20, 2015 1:55 am

I propose pulling the section on loops out from below "dead end", and including roundabout with the rest of the loops,many use somewhat simpler language.

The section would look like this:
https://wiki.waze.com/wiki/User:Voludu2 ... ic_circles
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Re: [Page Update] Junction Style Guide

Postby voludu2 » Fri May 22, 2015 2:45 pm

Well yes. That is a good pointl.

The only thing the junction style guide says about roundabouts is to go read about them on the roundabout page anyway. How about

Roundabouts are technically loops. But they should never be used where other types of loops are required because they create special navigation instructions in the waze app. Please see the [[Roundabouts]] page for a full discussion of this special type of junction.
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Re: [Page Update] Junction Style Guide

Postby voludu2 » Sat Jun 06, 2015 11:57 am

along those lines:

It may be tempting to use the roundabout feature to create a loop shape. Do not do this unless the loop is a genuine roundabout/traffic circle, as defined on the [[Roundabout]] page. Roundabouts give special routing instructions, and must not be used for other purposes.
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