Dear community, Regarding the previous discussion on average speeds in SUMO, I have encountered another setback. Earlier I was using SUMO-GUI to generate a graph of the average speed of the whole network (at 5-minute intervals) and save it as a CSV file. Then I thought that if I got aggregated average speed of all the edges in the network, it should be equal to the values obtained from SUMO-GUI, but this is not the case. Could you explain how the average speed for the whole network is calculated and how I can get the same values through the edgeData file? I wanted to compare these values as even though I had a max allowable speed of 16 and the vehicles were free-flowing, the average speed in SUMO-GUI would be around 3-4. Thanks and regards, Rohan
On Tue, Dec 13, 2022 at 2:11 PM Jakob Erdmann <[email protected]> wrote: > The speed value is computed as travelledDistance / sampledSeconds. > You should be able to replicate the aggregated speed value by the > following procedure: > - for each edge compute travelled distances as speed * sampledSeconds > - sum up the distances and sampledSeconds > - take the quotient of the sums > > > > > > Am Di., 13. Dez. 2022 um 09:23 Uhr schrieb 191 000 < > [email protected]>: > >> Dear community, >> >> I have been trying to understand how the average speed is calculated in >> edge-based traffic measures. I know it is space-mean speed but I am trying >> to aggregate data for multiple edges. >> I first generated average speed of two edges using edges="" and >> aggregate="True" method, then I generated average speed of the two edges >> separately. Now, I have tried arithmetic mean, harmonic mean, weighted >> average by numbers but cannot get the value equal to the aggregated value >> given by SUMO. >> Kindly suggest in what way can I manually aggregate the average speed >> data so as to get same value as when being done by aggregating directly >> through SUMO. >> >> Thanks and regards, >> Rohan >> _______________________________________________ >> sumo-user mailing list >> [email protected] >> To unsubscribe from this list, visit >> https://www.eclipse.org/mailman/listinfo/sumo-user >> > _______________________________________________ > sumo-user mailing list > [email protected] > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-user >
_______________________________________________ sumo-user mailing list [email protected] To unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/sumo-user
