Re: [sumo-user] help to understant calibrator attributes

[Jakob Erdmann <namdre.sumo@xxxxxxxxx>]

Hello,

calibrators are not the ideal tool for building scenarios from scratch because they require additional information regarding the route that vehicles take subsequent to the calibrator edge. They work fine if you already have a base scenario where such route information is available and then they add/remove cars to match counts.

You could try to start with a random base scenario: https://sumo.dlr.de/docs/Simulation/Calibrator.html#building_a_scenario_without_knowledge_of_routes_based_on_flow_measurements

An alternate method is to use the flowrouter tool (https://sumo.dlr.de/docs/Tools/Detector.html#flowrouterpy) which tries to compute a set of routes that matches all count information.

regards,

Jakob

Am Mi., 5. Feb. 2020 um 13:48 Uhr schrieb Lamia E.L. <lamia.el16@xxxxxxxxx>:

Thank you for your response,

No I haven't the turn counts / turn ratios.

what I have it just the name of the intersection and the number of vehicles by time as in the attached file.

On Wed, Feb 5, 2020 at 1:55 AM Jakob Erdmann <namdre.sumo@xxxxxxxxx> wrote:

It depends. Do you have turn counts / turn ratios along with your flow counts?

Am Di., 4. Feb. 2020 um 23:53 Uhr schrieb lamia.el <lamia.el16@xxxxxxxxx>:

Hi, I have a real flow measurements (number of cars at intersections by time)
and I want to generate a real scenario using these statistics.
Please, I need help to understand what values to put in différent calibrator
attributes.
I didn't find information about route attribute, but I find the definition
of other attributes like : id, edge, lane, pos, freq, vTypes.

<calibrator id="calibtest_lane" edge="middle_1" pos="0"
output="detector.xml">
    <flow begin="0"    end="1800" <b>route="c1"* vehsPerHour="600"
speed="27.8" type="t0" departPos="free" departSpeed="max"/>
</calibrator>

Also what is routeProbe?
Can you help me with examples.
Any help please?
Thank you



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