Hi Giampaolo, > So if i decrement these values the result is an increase in travel time is right?
yes that is correct. > Are they expressed in Km/h (e.g. motorway ? 100Km/h)? Yes. And yes 100km/h seems slow for motorway but we use mean values here. And they could be decreased by max_speed tags or even increased (for cars only). Also keep in mind that this issue is still open: https://github.com/graphhopper/graphhopper/issues/230 Regards, Peter On 10.12.2014 13:20, Giampaolo wrote: > Thanks for the answer Peter :) > > Studying the code I realized that in the > class com.graphhopper.routing.util.CarFlagEncoder we have : > > + // autobahn > > > + defaultSpeedMap.put("motorway", 100); > > > + defaultSpeedMap.put("motorway_link", 70); > > > + // bundesstraße > > > + defaultSpeedMap.put("trunk", 70); > > > + defaultSpeedMap.put("trunk_link", 65); > > > + // linking bigger town > > > + defaultSpeedMap.put("primary", 65); > > > + defaultSpeedMap.put("primary_link", 60); > > > + // linking towns + villages > > > + defaultSpeedMap.put("secondary", 60); > > > + defaultSpeedMap.put("secondary_link", 50); > > > + // streets without middle line separation > > > + defaultSpeedMap.put("tertiary", 50); > > > + defaultSpeedMap.put("tertiary_link", 40); > > > + defaultSpeedMap.put("unclassified", 30); > > > + defaultSpeedMap.put("residential", 30); > > > + // spielstraße > > > + defaultSpeedMap.put("living_street", 5); > > > + defaultSpeedMap.put("service", 20); > > > + // unknown road > > > + defaultSpeedMap.put("road", 20); > > > + // forestry stuff > > > + defaultSpeedMap.put("track", 15); > > > So in the hashMap defaultSpeedMap we have the default speed values for > each type of highway (http://wiki.openstreetmap.org/wiki/Key:highway) > and i suppose that these values are used to calculate travel times of > each route. > Are they expressed in Km/h (e.g. motorway ? 100Km/h)? So if i > decrement these values the result is an increase in travel time is right? > > Thank for your help > > Giampaolo > > 2014-11-27 13:22 GMT+01:00 Peter <[email protected] > <mailto:[email protected]>>: > > This is a known issue and will be fixed soon: > https://github.com/graphhopper/graphhopper/issues/230 > > Regards, > Peter > > On 27.11.2014 13:19, Giampaolo wrote: >> Hi Peter, >> >> thanks for your answer,I managed to build distance and time matrix :) >> >> I have a question about values returned from res.getMillis() : >> they are always lower than the values provided by google maps or >> bing. >> >> As example , a route of 3,7 Km in the center of Milan city is : >> >> 10 Min - GoogleMaps >> 8 Min - Bing >> About 4 Min - my time matrix >> >> these values are referred to routes without traffic.How can I >> make my values consistent with those? >> >> >> >> 2014-11-23 15:31 GMT+01:00 Peter <[email protected] >> <mailto:[email protected]>>: >> >> Hi Giampaolo, >> >> you need to get the route information like distance and time >> from the hopper.route() call like in this example: >> >> https://github.com/karussell/optaplanner-graphhopper-example/blob/master/src/main/java/com/graphhopper/optaplanner/Main.java#L59 >> >> Regards, >> Peter >> >> >> >> On 23.11.2014 14:38, Giampaolo wrote: >>> >>> Hi all J, >>> >>> My name is Giampaolo, I’m currently trying to build a >>> Distance Matrix offline, based on Italy’region OSM Map, using GH >>> >>> As a first step I’ve run the main.java successfully ,my >>> sourcefile is lombardia.pbf (the region that contains Milan >>> city) , then I pass the GHPoint(45.4974413, 9.1865076) of a >>> station point placed inside the city, then I call >>> hopper.route(). >>> At the end of the process, it generates some files like >>> edges, names, nodes etc … >>> >>> Now , how can I read/open the files created? All the path >>> from the GHPoint to all other nodes of the map are placed >>> inside these files? >>> >>> >>> thanks a lot for your support! >>> >>> Giampaolo >> > > > _______________________________________________ > GraphHopper mailing list > [email protected] <mailto:[email protected]> > https://lists.openstreetmap.org/listinfo/graphhopper > > > > > _______________________________________________ > GraphHopper mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/graphhopper
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