I concur with the suggestion of setting an artificial autobahn speed limit to define the central speed when applying the speedFactor distribution. Using the vehicle type maxSpeed as an upper limit is often not needed (instead, the speedFactor distribution can be capped) and this avoids artifacts such as having lots of vehicles drive at 140km/h. If you need a different distribution for cars and trucks, you can use vClass specific speed limits: https://sumo.dlr.de/docs/Definition_of_Vehicles,_Vehicle_Types,_and_Routes.html#different_distributions_for_cars_and_trucks
Am Di., 21. Juli 2020 um 13:50 Uhr schrieb [email protected] < [email protected]>: > Hey Harald, > > > > this is a good solution if you only consider the autobahn. The downside is > that the speedFactor is also applied to all other streets with a mean speed > of 45 km/h when 50 km/h are allowed is not realistic as the mean speed in > reality is more likely 55 km/h. Maybe I can somehow overcome this issue > through the combination of different vehicle types. Thanks for your help! > > > > Did you take a look at the distribution of vehicle speeds? My experience > is that you could have a huge amount of vehicles going at 140 km/h with the > center of the distribution being not at 130 km/h. Make sure this isn’t the > case! > > > > Best regards > > Simon > > > > *From:* [email protected] <[email protected]> *On > Behalf Of *Harald Schaefer > *Sent:* Dienstag, 21. Juli 2020 09:46 > *To:* [email protected] > *Subject:* Re: [sumo-user] Variation of maxSpeed > > > > Hello Dillip, > > the maxSpeed of the vehicle is 140 km/h, much less than the edge/lane > speed, so I think the speedFactor is applied to the vehicle speed. > > Greetings, Harald > > Am 21.07.20 um 09:08 schrieb Tripplanner Mumbai: > > Hello Harald, > > As per your definitions, speed limit of highway = 180 km/h, and vehicle's > speedFactor=0.9 which means that the vehicle can run upto 160km/h on the > highway (of course speedDev and sigma will affect it). Please clarify > and/or rectify my views. > > thanks and regards, > > Dillip Rout > > > > On Tue, 21 Jul 2020 at 12:08, Harald Schaefer <[email protected]> wrote: > > Hi Simon, > > in my own Autobahn-Scenario I want to run cars around 130 km/h. > > I used a vehicleType with a maxspeed of 140 km/h like > > <vType id="passenger" vClass="passenger" maxSpeed="38.888" > speedFactor="0.9" speedDev="0.2" sigma="0.5"> > <param key="has.rerouting.device" value="true"/> > > The highway has a speed limit of 50 m/s (= 180 km/h) > > I get a distribution of speeds according to the fcd-output like > > time = 739.0, N = 110 min = 53.3 max = 140.0 mean = 131.0 dev = > 13.8 > time = 740.0, N = 110 min = 53.5 max = 139.9 mean = 131.0 dev = > 13.9 > time = 741.0, N = 110 min = 55.5 max = 140.0 mean = 131.2 dev = > 14.1 > time = 742.0, N = 109 min = 56.0 max = 140.0 mean = 131.1 dev = > 14.0 > > Greetings, Harald > > Am 17.07.20 um 10:32 schrieb [email protected]: > > Hey Harald, > > > > thanks for your reply. I’m using exactly this for streets with a speed > limit, but I’m targeting the special case of the German autobahn. > > > > As I understand it the simulation works as follows: If there are no speed > limits, each vehicles drives it’s defined maxSpeed. The speedFactor is > added to the maxSpeed, but if the driven speed exceeds the maxSpeed value, > the speed is set back to it. Because of this there is no real speed > distribution but just a los of cars driving at their maxSpeed. > > > > Best regards > > Simon > > > > *From:* [email protected] <[email protected]> > <[email protected]> *On Behalf Of *Harald Schaefer > *Sent:* Freitag, 17. Juli 2020 09:43 > *To:* [email protected] > *Subject:* Re: [sumo-user] Variation of maxSpeed > > > > Hi Simon, > > unfortunately I'm not the expert on this question, but there was a > discussion in this mailing list on 2018-08-23. > > Have you read these chapters? > > > https://sumo.dlr.de/docs/Definition_of_Vehicles,_Vehicle_Types,_and_Routes.html#defining_speed_limit_violations_explicitly > <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsumo.dlr.de%2Fdocs%2FDefinition_of_Vehicles%2C_Vehicle_Types%2C_and_Routes.html%23defining_speed_limit_violations_explicitly&data=02%7C01%7Csimon.frentrup%40umlaut.com%7C4f7b2e72300f4aff9b8908d82d4a1f44%7C58d65043cd9d409f828b59b40ef5f919%7C0%7C0%7C637309143670328808&sdata=0%2BWoTI7DBaGGiYRTpPmox5whFn64WY8j7qxx2ekZnqI%3D&reserved=0> > > > https://sumo.dlr.de/docs/Definition_of_Vehicles,_Vehicle_Types,_and_Routes.html#additional_remarks_on_speed_distributions > <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsumo.dlr.de%2Fdocs%2FDefinition_of_Vehicles%2C_Vehicle_Types%2C_and_Routes.html%23additional_remarks_on_speed_distributions&data=02%7C01%7Csimon.frentrup%40umlaut.com%7C4f7b2e72300f4aff9b8908d82d4a1f44%7C58d65043cd9d409f828b59b40ef5f919%7C0%7C0%7C637309143670328808&sdata=Nuj1QTjPuptLYbSJns0Y221WbcbVj7gwu5FJ3%2FqlWrI%3D&reserved=0> > > Greetings Harald > > > > Am 16.07.20 um 09:55 schrieb [email protected]: > > Hello, > > > > adjusting vehicle types I came across the problem that the maxSpeed is fix > and the speedFactor doesn’t increase the speed above this value, but I want > to get varying speeds even when there is no speed limit and no traffic on > the German autobahn. > > > > Is there a way to add variation to the maxSpeed without adding numerous > vehicle types? (E.g. using a normal distribution like the speedFactor.) > > > > Thanks and best regards > > Simon > > > > > > > > _______________________________________________ > > sumo-user mailing list > > [email protected] > > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-user > <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.eclipse.org%2Fmailman%2Flistinfo%2Fsumo-user&data=02%7C01%7Csimon.frentrup%40umlaut.com%7C4f7b2e72300f4aff9b8908d82d4a1f44%7C58d65043cd9d409f828b59b40ef5f919%7C0%7C0%7C637309143670338807&sdata=AIDZ3VarSrfq3WS6NVAYUqYUccm6aYw1eiPgZtWm7Kk%3D&reserved=0> > > > > _______________________________________________ > > sumo-user mailing list > > [email protected] > > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-user > <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.eclipse.org%2Fmailman%2Flistinfo%2Fsumo-user&data=02%7C01%7Csimon.frentrup%40umlaut.com%7C4f7b2e72300f4aff9b8908d82d4a1f44%7C58d65043cd9d409f828b59b40ef5f919%7C0%7C0%7C637309143670338807&sdata=AIDZ3VarSrfq3WS6NVAYUqYUccm6aYw1eiPgZtWm7Kk%3D&reserved=0> > > _______________________________________________ > sumo-user mailing list > [email protected] > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-user > <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.eclipse.org%2Fmailman%2Flistinfo%2Fsumo-user&data=02%7C01%7Csimon.frentrup%40umlaut.com%7C4f7b2e72300f4aff9b8908d82d4a1f44%7C58d65043cd9d409f828b59b40ef5f919%7C0%7C0%7C637309143670348792&sdata=4rH3Xw%2FTCA74hmElb7u7XEoazlAHNy%2BvGEfTY70RCnc%3D&reserved=0> > > > > _______________________________________________ > > sumo-user mailing list > > [email protected] > > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-user > <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.eclipse.org%2Fmailman%2Flistinfo%2Fsumo-user&data=02%7C01%7Csimon.frentrup%40umlaut.com%7C4f7b2e72300f4aff9b8908d82d4a1f44%7C58d65043cd9d409f828b59b40ef5f919%7C0%7C0%7C637309143670348792&sdata=4rH3Xw%2FTCA74hmElb7u7XEoazlAHNy%2BvGEfTY70RCnc%3D&reserved=0> > > _______________________________________________ > sumo-user mailing list > [email protected] > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-user >
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