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Re: [sumo-user] help to understant calibrator attributes
Hi Jakob,
thank you so much, I will manage my data to generate Jtrroute required file.
regards,
Lamia

On Fri, Feb 7, 2020 at 3:49 PM Jakob Erdmann <namdre.sumo@xxxxxxxxx> wrote:
In this case you could use jtrrouter if you can manage to convert your data into the required format. See https://sumo.dlr.de/docs/Demand/Routing_by_Turn_Probabilities.html
regards,
Jakob


Am Do., 6. Feb. 2020 um 19:58 Uhr schrieb Lamia E.L. <lamia.el16@xxxxxxxxx>:
Hi Jakob,
I found some additional information related to my real scenario, I found the turn counts / turn ratios along with my flow counts.
please can you help how could I use this information to calibrate my simulation and generate a real scenario?
thank you so much for your help.
Lamia

On Wed, Feb 5, 2020 at 2:20 PM Lamia E.L. <lamia.el16@xxxxxxxxx> wrote:
Hi Jakob,
I read the functioning of calibrator, what I understand is : the calibrator is put on the edge not at the jonction between edge.
the file I find from the website of Montréal downtown is computing the number of vehicles crossing the intersection during a period. So, I can't use this information to major my flow by intersection?
But, If I define each intersection as Taz and I try to use calibrator on this Taz,  is it wrong strategy to generate real scenario ?
please can you guide me to use the few information that I have to generate a scenario the closest to the real scenario.
thank you.
Lamia


On Wed, Feb 5, 2020 at 10:12 AM Jakob Erdmann <namdre.sumo@xxxxxxxxx> wrote:
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.

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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