Re: [sumo-user] Routing period

[Jakob Erdmann <namdre.sumo@xxxxxxxxx>]

Solution 1. create jams in some part of the network either by increasing traffic density, or by using variable speed signs to create slow sections.

Solution 2. add randomness to the routing algorithm by setting option --weights.random-factor FLOAT

Am Di., 14. Apr. 2020 um 17:03 Uhr schrieb Raheleh Zarei <raheleh.zarei@xxxxxxxxx>:

Thanks Mouna and Jakob for these questions and answers.

It was my question too. I have another question in this regard. It's obvious if a driver checks every 5 minutes for a faster available route, he won't change the route if the current road is still the fastest. How we can make a scenario that makes sure the driver will choose another route because its current route is not the fastest anymore. In my experience, I have a random network with 100 nodes and 280 edges, and route file has 200 trips that trips depart at times 1, 2, 3 and so on. But I don't see any route change in --vehroute-output. Every trip has just one route during its existence in simulation.

Thanks,

Raheleh

On Tue, Apr 14, 2020 at 7:54 AM Jakob Erdmann <namdre.sumo@xxxxxxxxx> wrote:

Yes. --tripinfo-output will list vehrouteNo (number of reroutes) and --vehroute-output will list all routes that were used during the simulation by each vehicle along with the reason for rerouting and the expected savings.

Am Di., 14. Apr. 2020 um 13:29 Uhr schrieb Mouna karoui <mouna.karoui16@xxxxxxxxx>:

Thanks for the clarification. 

Is it possible to know how many times a vehicle changed its route? Is there any function that I can use to count route changes during a simulation? 

Regards,

Sender notified by Mailtrack 14/04/20 à 13:26:09

Le mar. 14 avr. 2020 à 11:58, Jakob Erdmann <namdre.sumo@xxxxxxxxx> a écrit :

With period 300, a driver will check every 5 minutes whether a faster route is available and in that case switch to the faster route.

Am Di., 14. Apr. 2020 um 10:04 Uhr schrieb Mouna karoui <mouna.karoui16@xxxxxxxxx>:

Hello everybody, 

I need to understand what the routing period exactly means because I have some doubts. In the following documentation https://sumo.dlr.de/docs/Demand/Automatic_Routing.html

It is indicated as the period with which the vehicle shall be rerouted. 

Setting  routing period to 5 min. Is this means that routing will happen every 5 min even if a new fastest route is found before this period? Or, this period allows a driver to take a route already found after 5 min ?

Regards,

--

Mouna KAROUI,

PhD student at University of 

Clermont Auvergne

Sender notified by Mailtrack 14/04/20 à 09:55:51

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Mouna KAROUI,

PhD student at University of 

Clermont Auvergne

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RAZ

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