Theory test: TTS speaking "exit" instead of "keep"

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Theory test: TTS speaking "exit" instead of "keep"

Postby AlanOfTheBerg » Thu Dec 01, 2011 11:20 pm

Folks,

I am trying to nail down the situations when the client will speak "Exit to the right at exit .... " instead of "Keep right at exit .... " I know that it is rare, but I have a theory to propose to you all to debunk if you will.

This is (currently) specific to the NA server.

I have found four different situations where I can reliably get an "exit right" verbal prompt from the client. The only common denominator to them all is that the road I am exiting from is a Minor Highway type. In these four situations, 2 of them are actual ramps, one is a street, and one is a parking lot segment. The ramps are named, the street and parking lot segment are unnamed.

I theorize that the client only gives the "exit right" prompt for non-Minor Highway segments which deviate from the Minor Highway segment at an angle that does not generate a "turn right" prompt. <- That's what I'd like y'all to test.

Please note that this can only be done from the client as the routing server returns the same "keep right" result in the routing instructions returned.
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Re: Theory test: TTS speaking "exit" instead of "keep"

Postby banished » Sat Dec 03, 2011 5:16 am

Keep right, bear right, turn right, and exit right, all have different meanings to me, so my perception is Waze should consider both the angle of the turn and the transition road type. If the transition road is a ramp, I think TTS should always say "Exit..." If it is anything else, TTS should use keep, bear, or turn depending on the angle: let's say "keep right" is 10 to 35 degrees; "bear right" is 36 to 75, and "turn right" is greater than 75. Insert your own numbers, but you've got the idea. But I digress...

That you should hear "exit right" only when leaving a minor highway is consistent with a road I drive every weekday. The transition between the two roads is an unnamed street, but Waze correctly extends itself to the next named road, e.g., "Exit right to Oak St."

I will have to try turning the minor road into a major road to verify your results.
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Re: Theory test: TTS speaking "exit" instead of "keep"

Postby AlanOfTheBerg » Sat Dec 03, 2011 3:36 pm

I am in agreement with you. IMO, only Ramp type should be considered. And, as the map matures, only ramps whose name start with "Exit" should be given the "Exit left/right" verbal instruction. I think the angles might be too much detail.
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Re: Theory test: TTS speaking "exit" instead of "keep"

Postby banished » Sat Dec 03, 2011 4:48 pm

Agreed. Angles are a bit much. But you allude to another issue where I see inconsistency in the maps: Ramps.

If you name a ramp, it of course does not display on the client, which I think is the right approach. But Waze/TTS will still display/speak the name if there is one. Here's the inconsistency: A ramp may not be the appropriate road type for a transition road that connects two roads at the same grade-level. I've always (correctly or not) used a ramp when there is a grade-level separation between the two roads since that is consistent with the definition of a ramp (pasted, below). Otherwise, I just put in an unnamed street.

What do you think?

Ramp, noun
1. a sloping surface connecting two levels; incline. 2. a short concave slope or bend, as one connecting the higher and lower parts of a staircase railing at a landing. 3. any extensive sloping walk or passageway. 4. the act of ramping. 5. Also called boarding ramp. a movable staircase for entering or leaving a cabin door of an airplane.
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Re: Theory test: TTS speaking "exit" instead of "keep"

Postby sketch » Sat Dec 03, 2011 6:31 pm

I agree with this.

Ramps are used to connect limited-access roads to other roads. They bridge two different levels.

For turn lanes like this, I've always used the "Street" type:

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Re: Theory test: TTS speaking "exit" instead of "keep"

Postby WeeeZer14 » Sun Dec 04, 2011 7:16 pm

sketch wrote:I agree with this.

Ramps are used to connect limited-access roads to other roads. They bridge two different levels.

For turn lanes like this, I've always used the "Street" type:

Image


I agree as well, BUT with the fact that Waze seems to ignore segments of type Street in the middle of trips of a certain length, will a situation like you post cause a problem? The route is technically across primary streets, but will that single Street segment cause Waze to ignore that path?
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Re: Theory test: TTS speaking "exit" instead of "keep"

Postby mapcat » Sun Dec 04, 2011 11:23 pm

WeeeZer14 wrote:I agree as well, BUT with the fact that Waze seems to ignore segments of type Street in the middle of trips of a certain length, will a situation like you post cause a problem? The route is technically across primary streets, but will that single Street segment cause Waze to ignore that path?

Good point. It's a long turn lane connecting two primary streets, so make it a primary street.
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Re: Theory test: TTS speaking "exit" instead of "keep"

Postby WeeeZer14 » Mon Dec 05, 2011 12:52 am

What do you guys think about this case then? US-9 and Texas Rd cross on grade, but you cannot make any turns directly from US-9.

Rt9_TexasRd.jpg
Rt9_TexasRd.jpg (135.9 KiB) Viewed 1593 times


IGN has the turn lanes as ramps right now (I may be the last editor on a few segments from when I did triage along US-9) but should these roads then be primary street?
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Re: Theory test: TTS speaking "exit" instead of "keep"

Postby mapcat » Mon Dec 05, 2011 1:36 am

WeeeZer14 wrote:What do you guys think about this case then? US-9 and Texas Rd cross on grade, but you cannot make any turns directly from US-9.

IGN has the turn lanes as ramps right now (I may be the last editor on a few segments from when I did triage along US-9) but should these roads then be primary street?

Yeah, I'd go with primary streets, to match the lower rank road at the intersection. What do you do with jughandles?

Nevertheless, I do understand that this is a different situation, in that Route 9 is like a freeway (no turns except via signed exit-like roads) that just happens to have occasional stop lights. Still, it would be hard to justify criticizing the IGN-like right-turn-lane-as-short-ramp obsession if we said it's ok in this case...we know it's a different situation because we've encountered intersections like this, but they have no idea.
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Re: Theory test: TTS speaking "exit" instead of "keep"

Postby mssusa » Mon Dec 05, 2011 7:28 am

banished wrote:Keep right, bear right, turn right, and exit right, all have different meanings to me, so my perception is Waze should consider both the angle of the turn and the transition road type. If the transition road is a ramp, I think TTS should always say "Exit..." If it is anything else, TTS should use keep, bear, or turn depending on the angle: let's say "keep right" is 10 to 35 degrees; "bear right" is 36 to 75, and "turn right" is greater than 75. Insert your own numbers, but you've got the idea. But I digress...


+1

Sorry I can't help testing; it would take months on the world server with the current update schedule :cry:
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