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Re: [sumo-user] 回复： travel time
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 <ishadowprince@xxxxxxxxxxx>:
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 ：）

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在2017年12月06日 04:16，Jakob Erdmann 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).

regards,
Jakob

2017-12-05 15:01 GMT+01:00 杜 伟强 <ishadowprince@xxxxxxxxxxx>:

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

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