Re: [sumo-user] Extracting aggregated traffic information around a movin

[Jakob Erdmann <namdre.sumo@xxxxxxxxx>]

Hello,

there is nothing that would give aggregated traffic data around a moving observer.

However, you can get disaggregated data in these ways

- post-simulation output:  --fcd-output with option --device.fcd.radius  (only observer should be equipped with an fcd device)

- online retrieval: traci.vehicle.subscribeContext https://sumo.dlr.de/docs/TraCI/Interfacing_TraCI_from_Python.html#context_subscriptions

- post simulation output if only a portion of the fleet should be observable: https://sumo.dlr.de/docs/Simulation/Bluetooth.html

regards,

Jakob

Am Di., 6. Okt. 2020 um 00:26 Uhr schrieb Hao Zhou <zhouhaoseu@xxxxxxxxxx>:

Hi SUMO community,

I'm interested in an efficient, real-time method to retrieve aggregated traffic measures around a moving observer. The fixed detectors are not very handy because I want to know the densities (or speed) at the upstream and downstream of a moving observer (car), as shown by the figure below. Those aggregated info are ideally meaured in road cells with lengths between 30m~60m. 

Anyone can share some neat ideas? 

Thank you in advance,

Hao Zhou,

Georgia Tech

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