1) "normal" vehicle was meant in contrast to trips (which already imply some routing) 2) random roll of the dice (unrelated to traffic situation). Think of this as the set of vehicles equipped with a live-traffic route finding software 3) option --verbose 4) it depends. We often use 300s in our projects 5) duarouter -r trips.xml -o routes.xml --weights.random-factor FLOAT 6) The "current traffic condition" is an average over past traffic states as explained at https://sumo.dlr.de/docs/Demand/Automatic_Routing.html. No equilibrium iteration is done for this.
Am Fr., 4. Sept. 2020 um 05:54 Uhr schrieb Jane Cheung < [email protected]>: > Jakob, > > Thanks for your reply. > > More questions about the previous email. > > 1) the probability could be set in the range of (0,1], and <00 value means > *normal > vehicles* will not perform rerouting. > > - What kind of vehicle is not the *normal vehicle*? The the only > scenario I know is to use Traci to reroute in the simulation. > - If I set <device.rerouting.probability value="*0.5*"/> and the s > log.txt is printed as below: > > > > Performance: > > Duration: 297822ms > > Real time factor: 18.1316 > > UPS: 32080.783152 > > Vehicles: > > * Inserted: 14158 (Loaded: 17538)* > > * Running: 2061* > > * Waiting: 3356* > > > > Does it mean SUMO would choose 50% of *vehicles* to have the ability of > rerouting? > > - The *vehicles* are in terms of the *inserted vehicles(14158)* or the > *loaded > ones(17538)*？ > - How does SUMO *decide which vehicle* can reroute? > > > - For example, edge A1B1 and edge B1A1 are *100m*, the number of > vehicles on edgeA1B1 is *18*(edge *A1B1* most in congestion), the > number of vehicles on edge *B1A1 is 6*. The Sumo would choose 10 > vehicles among 20 vehicles on edge A1B1 and 3 vehicles among 6 vehicles on > edgeB1A1. Is that right? Obviously, traffic conditions in the two edges are > different. Edge A1B1 is mostly in congestion, and vehicles on edge B1A1 can > run in free-flow speed. More rerouting devices are assigned to vehicles on > edge A1B1 might be a better choice. Could SUMO assign rerouting devices > like that, or SUMO uses other more realistic strategies to choose which > vehicle can reroute? > - As explained in > https://sumo.dlr.de/docs/Simulation/Output.html#timing_data > - How to let output printed the total time spend routing and average > time per routing call? > - According to your experience, the suitable frequency of calling > rerouting is? > > > > > > 2) as you explained *in 2),* “all vehicles <route-files > value="casemy.trips.xml"/>when entering the simulation (pre-insertion > rerouting uses the departure as the first routing time) but no further > rerouting takes place due to the high period.” > > In my understanding, > > - if I use the *trips <route-files value="casemy.trips.xml"/> *in > *.sumocfg* file, the “*reroute once*” means *route* or generating the > route file firstly for inserted vehicles to let vehicles know edges they > are scheduled to drive, and then, during the simulation the inserted > vehicle will not reroute due to the high period; > - if I have the *trips file*, how could I generate the *route file > *randomly? > > - if I use the routes *<route-files value="casemy.rou.xml"/>* in > *.sumocfg* file, the “*reroute once*” means *reroute. *In other > words, ， SUMO will assign the fastest routes to all inserted vehicles > according to the traffic condition at the inserted time point of vehicles. > - Which algorithm does SUMO use to find the fastest routes when > vehicles are going to enter into the simulation? The user equilibrium > model, such as call *duarouter.exe* run in 50 interaction or other > ones? > > > Appreciated in advance! > > Best regards, > > Jane Cheung > > _______________________________________________ > sumo-user mailing list > [email protected] > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-user >
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