time-supplement for traffic-lights
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Sometimes I got a strange routing with traffic-lights or crossings on the way, but I know it would be saver and quicker using another route. Do you give time-supplements for traffic-lights or crossings to prefer other routes without them? Sometimes route-calculation differs just seconds or a minute. Time-supplements would make routing more realistic.
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They don't, and I asked for that much earlier - without any success:
http://forum.mapfactor.com/discussion/comment/3460#Comment_3460
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That's a real bummer.
I fully expected that you would have a set of speed penalties for the several "obstacles" possible, being (but maybe not complete): barrier, traffic_calming, traffic_signals(*), crossing(*), stop(*), give_way(*), toll_booth(*), ford(**).
*: tag=highway, value=...
**: ford can be a highway value and a separate tag
Each needs its own speed penalty which should be incorporated in the route calculation. A traffic calming or crossing takes less time (on average) then traffic_signals. That is how a number of apps work.
Edit: Now I also understand a few routes which didn't make sense to me.
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Coming home I'll find out a pretty silly example in Freiburg. It's hard to do that with my smartphone jet.
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It also has influence on how you cross a city or go around it. It might even have influence on a related problem mentioned in "Routing Problem".
Maybe that routing problem would also have been solved if all the speed penalties would have been in place.
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By the way, here was my next unheard try ;-)
http://forum.mapfactor.com/discussion/comment/6075#Comment_6075
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I see :(
In theory it is quite simple. When using the A* (bidirectional) algorithm for every shortest path segment you get a "time to pass" (taking the heuristics and road preferences into account). To this calculated time for that shortest path segment you add a number of "speed penalty seconds": Say 30 seconds for traffic_signals and 10 seconds for a crossing or traffic_calming.
Not being a java programmer :D, I should think it could be easily implemented.
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Sorry for being a little late. I promised to show an example:At first see my vehicle-profile based on my experience using MNF since more than three years to get realistic times:The example is here:where "Eschholzstraße" crosses river "Dreisam" and road "Autobahnzubringer Mitte" over the Bridge "Ochsenbrücke".Driving on "Autobahnzubringer Mitte" from East to West routing follows https://www.openstreetmap.org/way/4886074 and the following over the ramp towards the bridge and downwards behind the bridge instead of https://www.openstreetmap.org/way/60477340 and the following.SeeThe poposed route has 50 km/h instead of 60 km/h and a traffc-signal followed by a crossing. A stranger would get angry about that route:-&
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Driving through there again I found out that the problem still exists.Any solutions now?
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I agree.
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