[NEW] Guidance for turn instruction overrides

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[NEW] Guidance for turn instruction overrides

Postby AlanOfTheBerg » Tue Dec 13, 2016 9:47 pm

The following is a draft started by subs5 & nzhan1. I am posting it to get a draft in front of wiki folks quickly because the feature is live in WME Prod and we're behind.

The initial draft is simply a documentation of the feature. We need to add specific guidance on when to use them. And when they can take the place of a wayfinder and when they cannot.

There is also no formatting set in this draft.
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Creating an Override Instructions
wme_turn_override_hover2.png
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When in WME and you click on a segment and hover over a Green or Yellow Turn Connection/Restriction Arrow, both the Time Based Turn Restriction (TBTR) clock AND the Turn instruction Override speaker icon will appear. If the turn is Red (restricted), then the override icon will not appear.

Available Override Instructions
When you click on the '''Speaker", you have the following choices:
wme_turn_override_list.png
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  • Waze Selected (this gives the default voice prompt turn, exit, keep right/left, etc)
  • None (No verbal instruction/recommendation is given)
  • Turn Left (The instruction/recommendation "Turn Left" is given)
  • Turn Right (The instruction/recommendation "Turn Right" is given)
  • Keep Left (The instruction/recommendation "Keep Left" is given)
  • Keep Right (The instruction/recommendation "Keep Right" is given)
  • Continue (Not available as of 2016-12)
  • Exit Left (The instruction/recommendation "Exit Left" is given)
  • Exit Right (The instruction/recommendation "Exit Right" is given)
  • Uturn (The instruction/recommendation "Uturn" is given)

If there is a selection other than the default "Waze Selected" then the circle around the speaker changes color from [ img ] (Cyan) to [ img ] (Orange).

When to Use Override Instructions

Exit Left
When there is a the Big Green Sign (BGS) indicating an exit left.
Discuss with your Regional Coordinator(s) and/or State Manager(s) to see if they want it added to locations where a HOV or HOT/Express Lane is separated from the regular freeway, highway, etc.
[ img ]

U-turn
This works well for one way segments that have a u-turn only lane. You can post a "u-turn" verbal prompt on the first left turn and "None" on the second one.

Streets not meeting at right angles
When streets meet at some kind of diagonal, the default turn instruction may end up being a "stay to the left/right" even though the driver would consider it a left or right turn. In these cases, we have historically modified the angles the roads meet at a very high zoom level:
[ img ] [ img ]

Simple Wayfinder
Simple wayfinders use an unnamed segment simply to force an instruction where one would normally be voiced. This is most often a "stay right" or "stay left." A basic example is a roadway with a split where left lanes go left and right lanes go straight ahead. To ensure the driver is kept on the correct side of the roadway to stay on the expected route, we create a wayfinder on the "straight" segment to force a "stay to the right instruction."

An example of this is shown below. The selected segment is unnamed, and you can see the name of the street on both sides of the wayfinder are the extact same name. For drivers heading the direction of the arrow, the unnamed segment forces the app to give the driver the instruction "stay to the right to El Cajon Blvd."

[ img ]

The guidance here is to remove (or rename and join) the unnamed segment, and replace it with a "keep right" turn instruction override.

Complex Wayfinder
A complex wayfinder is one where the legs (child segments) are named differently than the subsequent segments. The wayfinder segments are named for the Big Green Sign (BGS) verbiage for clarity.

For these kinds of wayfinders, a turn instruction override does not have the required functionality and should not be used.
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Re: [NEW] Guidance for turn instruction overrides

Postby nzahn1 » Tue Dec 13, 2016 10:01 pm

A lot of this was put together by subs5, so h/t to him as well. I'll try to find examples of when to use exit lefts. Maybe some SV imagery of left exit signs.
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Re: [NEW] Guidance for turn instruction overrides

Postby AlanOfTheBerg » Tue Dec 13, 2016 10:05 pm

nzahn1 wrote:Maybe some SV imagery of left exit signs.
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Re: [NEW] Guidance for turn instruction overrides

Postby nzahn1 » Tue Dec 13, 2016 10:20 pm

I like BGS like this where they justify (left/right) the exit number based on the side of the road where you exit.
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Re: [NEW] Guidance for turn instruction overrides

Postby AlanOfTheBerg » Tue Dec 13, 2016 11:24 pm

You may notice formatting and other updates as I am continuing to update the original post.
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Re: [NEW] Guidance for turn instruction overrides

Postby Machete808 » Wed Dec 14, 2016 2:48 am

Perhaps this is a discussion for later, when "Continue" becomes available. But I figured I'd ask it now.

is there going to be national guidance on when it's appropriate to implement a "Continue" prompt? In other words: Should every freeway entrance which is a basic continuation from a feeder street be notated with a "Continue"? Or is this going to be a state/regional preference?
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Re: [NEW] Guidance for turn instruction overrides

Postby PleaseDriveFast » Wed Dec 14, 2016 2:59 pm

Do we also need to consider reviewing AGC guidance? In many places we've been adding 90 degree mDLs to a force a turn right rather than exit right instruction. The override might be a solution to match AGCs to their real geometry. Thoughts?
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Re: [NEW] Guidance for turn instruction overrides

Postby AlanOfTheBerg » Wed Dec 14, 2016 4:05 pm

Machete808 wrote:is there going to be national guidance on when it's appropriate to implement a "Continue" prompt? In other words: Should every freeway entrance which is a basic continuation from a feeder street be notated with a "Continue"? Or is this going to be a state/regional preference?

I would like to have some standard national guidance, yes. The example you provided is good for documenting. Map-based examples would be good to have.
PleaseDriveFast wrote:Do we also need to consider reviewing AGC guidance? In many places we've been adding 90 degree mDLs to a force a turn right rather than exit right instruction. The override might be a solution to match AGCs to their real geometry. Thoughts?

Yes! I believe this is also good. Though for some very long turn lanes, I don't think a "turn right" 800+ feet before the actual turn is a good idea. Examples are welcome.
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Re: [NEW] Guidance for turn instruction overrides

Postby nzahn1 » Wed Dec 14, 2016 9:31 pm

AlanOfTheBerg wrote:
PleaseDriveFast wrote:Do we also need to consider reviewing AGC guidance? In many places we've been adding 90 degree mDLs to a force a turn right rather than exit right instruction. The override might be a solution to match AGCs to their real geometry. Thoughts?
Yes! I believe this is also good. Though for some very long turn lanes, I don't think a "turn right" 800+ feet before the actual turn is a good idea. Examples are welcome.

We may want to take care to keep departure angles around ~20° to preserve the ability to close roads from the app (due to the pitiful nature of the app's road closure tool).
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Re: [NEW] Guidance for turn instruction overrides

Postby karlcr9911 » Thu Dec 15, 2016 4:30 pm

Just a couple of recommendations:

Current: Creating an Override Instructions
Recommended: Creating Override Instructions or Creating Instruction Overrides as the feature is being called by staff Instruction Override.

Current: If there is a selection other than the default "Waze Selected" then the circle around the speaker changes from cyan to orange.
Recommended: If the "Waze Selected" default option has been changed, the Instruction Override speaker icon changes from cyan to orange.

U-turn
Current: This works well for one way segments that have a u-turn only lane. You can post a "u-turn" verbal prompt on the first left turn and "None" on the second one.
Recommended: If you have one-way segments with a u-turn only lane, adding an Instruction Override u-turn prompt on the first left turn and setting the second left turn to 'None' will create a better TTS experience for the Wazer and more accurately depict what the driver needs to do.
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