Hi,
assuming you mean by road segment the same thing the sumo net calls edge:
For the speed simply calculate the average speed of the vehicles where
the lane attribute only differs in the last number (the lane index). For
the density you will need the network and the vehicle types because the
length of the lane and the length of the vehicles are not stored in the
fcd file. If you have this values you can sum up the vehicle lengths and
divide by the lane length.

Best regards,
Michael

Am 22.04.2016 um 16:57 schrieb Khadija 20:
> Hello ,
> How can i  calculate density concentration and speed on each road segment
> from .fcd file .
> Best regards,
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