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

[Jakob Erdmann <namdre.sumo@xxxxxxxxx>]

You can set the "distance" attribute for your edges to set up a linear coordinate system for your ring. Then you can set sumo option --fcd-output.distance  to get the coordinate within this reference system in your fcd output.

See https://sumo.dlr.de/docs/netedit.html#defining_a_linear_referencing_scheme_kilometrage_mileage_chainage

Am Fr., 2. Okt. 2020 um 01:16 Uhr schrieb Hariqi <a.hariqi@xxxxxxxxx>:

Hi Saeed,

1. Angle from the FCD file (floating car data) can be converted to distance. 

2. You can also use TraCI getDistance as well. 

On Fri, 2 Oct 2020 at 7:24 am, Saeed Vasebi <svasebi@xxxxxxxxxxx> wrote:

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 

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