Road category policy for India

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Re: Road category policy for India

Postby cherianchris » Tue Dec 11, 2012 6:55 am

SV Road cannot be a Freeway in any situation. In fact, the only freeway of international standards in India ATM would be the Delhi - Agra Expressway.

Waze does prefer to route through primary roads, depending on the total distance of your route. There is a Forum thread explaining it. I'll get you a link to it Paritosh.

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Re: Road category policy for India

Postby cherianchris » Tue Dec 11, 2012 7:16 am

And here it is,

viewtopic.php?t=22122

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Re: Road category policy for India

Postby cherianchris » Tue Dec 11, 2012 1:39 pm

Please go ahead and mark it as a Minor Highway. A similar procedure is being followed in Chennai, where arterial roads are updated as Minor Highways. And the roads, which link them to each other, are marked as Primary Streets.
Please ensure that you turn on the GPS Points before changing the road type. It will give you a very good idea of the amount of traffic using the road.
In India, All National Highways are Major Highways, and State Highways are Minor Highways again.
As you are in Maharashtra, while naming State Highways please use this format. MH-SH-**.
You might want to take a look at Chennai (The mapping is far from complete) to get a better idea. Use the GPS Points layer and compare the traffic density and the type of roads, which have been updated.

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Re: Road category policy for India

Postby cherianchris » Fri Jan 18, 2013 6:46 am

lunarplexus wrote:Since service roads are almost never accessed, should one keep them around or get rid of them?


Service Road

Also often known as a frontage road.

A smaller street found running alongside a limited access highway or other primary street.
Service roads allow local traffic to enter and exit driveways, parking lots, and intersecting streets without congesting thoroughfare traffic.
(NOTE: Service Roads should NOT be confused with what is often called a "service alley". Service Roads will not prevent routing.)

We need to maintain Service Roads, as they are a means to enter/exit major/minor Highways.

lunarplexus wrote:And also, if I may digress just a bit, I'm having a little trouble figuring out how to authorise U-turns on single two-way roads. All turns seem to be authorised at the junction but when I need to take a u-turn, Waze tells me to take a right and then another right and then right again.

For example, the junction in question is in this permalink: https://world.waze.com/editor/?zoom=8&l ... =171690759


Is Waze asking you to take three right turns ?

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Re: Road category policy for India

Postby cherianchris » Fri Jan 18, 2013 3:12 pm

lunarplexus wrote:Exactly. Instead of a u-turn, it asks me to take three right turns until I get back to the original road going the right direction. Of course, it wasn't a problem when this was a double line road.


Split the segments and make them two directional again. Do not combine roads or split them without thinking twice. Segments have tons of data stored in them, and when you delete a segment, routing becomes wonky.

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Re: Road category policy for India

Postby cherianchris » Fri Jan 18, 2013 3:16 pm

lunarplexus wrote:Oh man, I've had that so horrible wrong. Thanks for clearing that up. So, service alleys - can they be deleted?


Why would you want to delete Service Alleys ? Try to determine the POI in which these are situated, and map them if they satisfy the guidelines.
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Re: Road category policy for India

Postby cherianchris » Fri Jan 18, 2013 6:06 pm

lunarplexus wrote:I was considering deleting them if they have no access since they would not be consequential to routing.


They are purely for local traffic to enter and exit. For now, if the segment does not have any speed data, delete it. We can come back at a point in time when Delhi is sufficiently mapped, and draw them wherever needed.

lunarplexus wrote:As for double-line roads, I only change them if they are relatively short and have a lot of unrestricted junctions as per best practice guidelines. Maybe I should narrow my parameters a lot more? I do consider it a lot before changing them but I guess I just got to think a lot more eh :)


India will have its own Wiki, in some weeks time. It will specify the detailing required. For now, avoid changing segment composition unless absolutely required.

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Re: Road category policy for India

Postby cherianchris » Fri Jan 18, 2013 7:28 pm

lunarplexus wrote:When would it be absolutely required, do you think?


In the case mentioned earlier by you, where Waze was asking you to take three Right Turns.
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Re: Road category policy for India

Postby cherianchris » Thu Jan 31, 2013 4:45 pm

Dear Sk,

Hope this helps !

1. Handling Restricted Lanes

2. High-Occupancy Vehicle Lane

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Re: Road category policy for India

Postby cshubhra » Sun May 15, 2011 6:22 am

I personally find that having roads with dividers as two one way roads is better. It automatically restricts U turns, except at allowed places. The problem mentioned above, I have seen as well, did not know that it was because of inaccurate GPS points!!! I will keep the two one way roads locked, to avoid turning them to two-way roads!
Another problem in Kolkata ... most people don't respect one way roads, and often drive in the other direction!!!

I am trying to connect to other users in Kolkata, so that we can come up with better maps together, but unfortunately they are very few, and very non-regular.

Regarding the road classification, I agree and had started doing that since last 1-2 days, before seeing your post.

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