If you set the origin to be Gaspé, and a destination of Cornwall, then MapQuest will take the long way through Miramichi. If you set the destination to Dorval, then MapQuest will go through Rimouski. The difference in destination between Cornwall and Dorval is negligible, and both are far away from the incorrect routing. Perhaps this has to do with incorrect road classification or speed limits? Perhaps MapQuest has pre-calculated a long-distance routing matrix/tree, and that routing matrix/tree is using old data, which is causing the strange errors here? I cannot recreate the routing error in http://routingdemo.geofabrik.de/
Adam 2011/4/13 Bégin, Daniel <[email protected]>: > Bonjour Nakor, > > Mon hypothèse première est qu'il doit y avoir un bris dans la continuité du > réseau routier entre Rivière-du-Loup et Rimouski. > > Cependant, le bris doit cependant apparaître sur tout les segments de la > région si aucun chemin alternatif parallèle à la route 132 est sélectionné. > Ce qui me surprendrait! > > Daniel > > > > -----Original Message----- > From: Nakor [mailto:[email protected]] > Sent: April 13, 2011 15:51 > To: [email protected] > Subject: [Talk-ca] Routing issue / Probleme de routage > > > Bonjour, > > Quelqu'un aurait-il une idee de la raison de ce routage particulier : > http://open.mapquest.com/link/4-J9uff4Tn > Si on ajoute Rimouski come point intermediaire le chemin est bien plus direct > > Does anyone know why this strange routing happens: > http://open.mapquest.com/link/4-J9uff4Tn > If I add Rimouski as a waypoint everything is fine. > > Merci, > > N. > > _______________________________________________ > Talk-ca mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/talk-ca > > _______________________________________________ > Talk-ca mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/talk-ca > _______________________________________________ Talk-ca mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-ca
