Thanks for the reply. However, I am still confused with the period attribute.
In my case, (start time=0 sec, end time = 3600 sec), and I haven't specified any intervals. What would be the value of the period? And will be the value of period be the same or different for various edges of the same network? On Tue, Dec 21, 2021 at 1:56 AM Jakob Erdmann <[email protected]> wrote: > 1. at any given moment there is a total number of vehicles on an edge and > this number varies over time. edgeData is a time-aggregate so you only get > the average number of vehicles on the edge per second (computed as > sampledSeconds / period). > 2. period denotes the time period that was aggregated. By default it's the > whole simulation time but you can change it with attribute 'freq' > 3. based on edgeData alone you cannot get an unbiased aggregate since > vehicles may briefly occupy two edges at the same time and are thus counted > twice when summing edgeData. You can eithe accept this bias or do you own > aggregation based on unaggregated data (i.e. fcd-output). > > Am Di., 21. Dez. 2021 um 00:51 Uhr schrieb Royal Bhandari < > [email protected]>: > >> Hello, >> >> I have several questions regarding edge-based traffic measures: >> >> - What is the difference between the total number of vehicles on an >> edge and the average number of vehicles on an edge? (is av num of vehicle >> in an edge = num of vehicles in a particular edge/no of edges, >> irrespective of the length of each particular edge?) >> - What is the value of the period in the attached figure if I simply >> have a single simulation with begin time = 0 and end time = 3600? >> - It is mentioned that "Spatial aggregation (over multiple edges or >> lanes) is not as easy". However, the process of doing this is not given. >> Please direct me to this. >> >> >> >> >> >> [image: image.png] >> >> >> >> >> >> _______________________________________________ >> 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
