Hello,
duarouter supports reading a weight file that specifies time-dependent
values.
see
http://sumo.dlr.de/wiki/Demand/Shortest_or_Optimal_Path_Routing#Custom_edge_weights
As many time intervals as desired can be specified (or taken from previous
simulation output).

For alternative ways of routing vehicles before departure, see
http://sumo.dlr.de/wiki/Demand/Automatic_Routing

regards,
Jakob


2016-10-09 9:00 GMT+02:00 Hui Xiong Ng <[email protected]>:

> I an currently researching on improving traffic conditions via adjusting
> the edge's weight.
>
> The issue currently is that when generating routes via DUAROUTER, it takes
> in a fixed weight that remains constant throughout the whole routing
> generation.
>
> How can I generate routes in a way such that I can adjust the weight midway
> through the generation and DUAROUTER should take in the new weight to find
> the shortest path?
>
> *An rough idea of what I am trying to achieve;*
>
> Given that the initial weight of the edge is its traveltime, if the density
> is too high(which suggest congestion), I would like to dynamically increase
> the weight to reflect it's *'true*' traveltime
>
>
> I have then also tried via TraCI whereby I call
> traci.vehicle.rerouteTraveltime() which supports rerouting vehicles that
> are in the network. It has 2 issues
>
> 1: Rerouting is very slow, about 40-60s per vehicle. This is unacceptable
> for me as my network consist of a huge amount of vehicles.
>
> 2: Is there a way to reroute vehicles that has yet to be departed(those not
> in the network yet)?
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