[sumo-user] Time-location diagram in Ring road scenario

[Saeed Vasebi <svasebi@xxxxxxxxxxx>]

Hi All,

I have a ring road scenario, which is built by 85 edges (relatively similar size). I try to plot a time-location diagram. The cars start from different parts of the ring. I have x, y, and pos (position is a given edge with some miscaluclations). x and y are not accurate measures, because my ring's diameter is 497m, but x and y estimate the diameter as 560m. I do not know why x and y are not much accurate. 

I tried to define the distance between starting locations, and add speed in each second to calculate relative location (i.e., x(t) = x(t-1) + v(t)*1). But, this approach shows a lot of crashes (see the below picture), which is not correct. 

I highly appreciate any help or idea.

Best regards

Saeed