[OSM-talk] average speed as opposed to speed limit in calculating routes

Pavel Melnikov positron96 at gmail.com
Sun Aug 26 12:10:47 BST 2012

Hello all.
There are some services (proprietary) that show traffic jams and events
that can slow you down here in Russia. The values are collected from real
users using mapping application that sends speed data. This data is also
used to calculate routes.

This feature is very useful actually, and it would be great to implement
something in OSM. However, I think it should not be included in static osm
database using tags and values (because these values are likely to change
rapidly), but use a different database (and different project maybe) that
collects and shows on-line live data. For example, at rush hours we have
many traffic jams, at night and on weekends we have none, all for the same
street - and this live data could be used to calculate routes.

On Sun, Aug 26, 2012 at 4:41 PM, renato <rennabh at gmail.com> wrote:

> Hi, I've been trying out the Waze android GPS navigator and the one
> feature I really find useful of it is that, in route calculation, it
> doesn't use the road speed limit but rather the actual average speed on
> that road, calculated from the data gathered from other users driving
> those roads.
> In a few days of use, I have discovered some new routes for places I
> regularly go to, routes that are less known but certainly faster (avoid
> traffic lights for example). Also the time estimates are way better
> than Osmand (the only OSM navigator I actively used, but I plan on
> trying other ones).
> Could something like this be done in OSM? Has someone ever thought of
> it? First thought would be an average_speed_by_car tag, that navigators
> could use in calculating routes. Even better would be an automated way
> of updating these tags by users using the navigator.
> just curious to know thoughts about this idea,
> cheers
> renato
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