Re: [sumo-user] question about duaiterate

[Reza Bahmani <rbaphysics1995@xxxxxxxxx>]

As documentation a new alternative route may be added in each iteration. The set of alternative routes contains 5 routes (as default). I just want to know after choosing the shortest path in iteration 0, how does duarouter change the route? Does it choose randomly or it chooses the second shortest path between an origin-destination in iteration 1, third shortest path in iteration 2 and etc?

And about second question, I just want to know  "The travel time Tau_d(r, i+1) is calculated according to the aggregated and averaged link travel times per defined interval (default: 900 s) in Iteration i"  in documentation, means that choosing routes are based on averaged link travel times in just the first 900s of simulation or sum of all 900 seconds? and is there any way to change the interval 900s?

On Wed, May 17, 2023 at 2:10 PM Jakob Erdmann <namdre.sumo@xxxxxxxxx> wrote:

1.  https://sumo.dlr.de/docs/Demand/Dynamic_User_Assignment.html#alternative_route_selection

2. https://sumo.dlr.de/docs/Demand/Dynamic_User_Assignment.html#route-choice_algorithm

Am Mi., 17. Mai 2023 um 11:05 Uhr schrieb Reza Bahmani <rbaphysics1995@xxxxxxxxx>:

Hi

I have some questions about duaiterate which i couldn't find in documentation.

1. How does duaiterate choose the set of alternative routes between an origin-destination?

2. How does duaiterate change the routes in each iteration? As I understood, it uses the travel time of each route in the first 900s of simulation and chooses the cheapest route. Is that right? 

thanks in advance

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