answers below:
weight file generated by sumo is the simulation result > one simulation's result can be another simulation's input? > yes. The output of one simulation can be loaded as input in another simulation. > > simulation's input weight file is different with simulation's output > weight file, they just have the same format > yes. Typically, the written weights will be different from the loaded weights. > > and the custom weight file's edge element should only contain weight > attribute, other attribute like density , speed ... are simulation result, > they are invalid in custom edge weight file right? > when loading a weight file, attributes like speed and density are simply ignored. It is possible to use things like CO2-emissions as weight attribute instead of traveltime. > > then i should wirite custom weight file by hand? is there some tools can > help me do this . or i should use a simulation's result and delete ohtere > invalid attribute just left the weight attribute > Depending on what you need it's typically a good idea to use the simulation output (edgeData) as a starting point and adapt the weight of some edges (i.e. if you want to prevent near a school). Note, that there are other options for influencing routing behavior and loading weight files is only one of them. Check here for more confusing options (-: http://sumo.dlr.de/wiki/Simulation/Routing#Travel-time_values_for_routing > > > 在2017年12月06日 22:13，Jakob Erdmann <[email protected]> 写道： > 1) yes. However, sumo can also load incomplete trip/flow files directly > (routing is then performed in the simulation) > 2) yes > 3) sumo > If you do this iteratively you can compute the dynamic user equilibrium: > http://sumo.dlr.de/wiki/Demand/Dynamic_User_Assignment > > 2017-12-06 6:51 GMT+01:00 杜 伟强 <[email protected]>: > >> thanks for your answer >> there are still some questions >> 1。 duarouter use incomplete trip/flow file ，net xml file ，weight file and >> additional file to generate complete route file 。 right？ >> 2 weight is generated from additional file with <edgedate>/<lanedata> >> element。 right？ >> 3 if 2 is right ， which application can use additional file to generate >> weight file >> >> thank you for help me ：） >> >> 发自网易邮箱大师 >> >> 在2017年12月06日 04:16，Jakob Erdmann <[email protected]> 写道： >> Hello, >> 1) the travel time of an edge usually equals it's length divided by it's >> speed limit. The actual speed of any one vehicle may differ from the speed >> limit and thus the travel time may be different as well. See >> http://sumo.dlr.de/wiki/Simulation/VehicleSpeed >> 2) the 'stored travel time' of a lane you can see in sumo-gui, is a way >> to customized the travel time values that are used when re-routing vehicles >> within the simulation (http://sumo.dlr.de/wiki/Simulation/Routing). >> 3) see http://sumo.dlr.de/wiki/Demand/Shortest_or_Optimal_Path_ >> Routing#Custom_edge_weights and >> http://sumo.dlr.de/wiki/SUMO#Format_of_additional_files >> >> regards, >> Jakob >> >> 2017-12-05 15:01 GMT+01:00 杜 伟强 <[email protected]>: >> >>> Hello : >>> >>> I’m getting trouble in travel time. >>> >>> 1 .what is the definition of travel time >>> >>> 2. I see travel these words in user doc >>> >>> Usually, each road within a simulation has an assigned travel >>> time based on its length and allowed speed. >>> >>> >>> >>> but when I right click show parameter in sumo-gui,every lane’s travel >>> time is -1 >>> >>> >>> >>> 3. how to set travel time in .xml file? I find this parameter is set in >>> weight file. But maybe weight file is generate by additional file. How to >>> generate weight file. Is there an example file? What is the relationship >>> between weight file and additional file >>> >>> >>> >>> I was bothered by these problem so long time. >>> >>> Any one can help me ? >>> >>> Thank you so much >>> >>> 发送自 Windows 10 版邮件 <https://go.microsoft.com/fwlink/?LinkId=550986>应用 >>> >>> >>> >>> _______________________________________________ >>> sumo-user mailing list >>> [email protected] >>> To change your delivery options, retrieve your password, or unsubscribe >>> from this list, visit >>> https://dev.eclipse.org/mailman/listinfo/sumo-user >>> >>> >> >> _______________________________________________ >> sumo-user mailing list >> [email protected] >> To change your delivery options, retrieve your password, or unsubscribe >> from this list, visit >> https://dev.eclipse.org/mailman/listinfo/sumo-user >> >> > > _______________________________________________ > sumo-user mailing list > [email protected] > To change your delivery options, retrieve your password, or unsubscribe > from this list, visit > https://dev.eclipse.org/mailman/listinfo/sumo-user > >
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