Hello, the calibrator is used to calibrating traffic flow of a base demand scenario by using local flow measurements. As such it is unsuited to calibrating a car-following model. Also, the calibrator is working on a rather 'macroscopic' level. Because it is only configured with a flow value, the insertion patterns it uses (vehicle time gaps) may not match reality.
Instead, you should build a demand scenario that matches with a known traffic flow at one location, ideally on a single-vehicle basis. Then calibrate your model so that the downstream flow best matches the real-world observations at a second measurement location. regards, Jakob Am Di., 4. Feb. 2020 um 06:10 Uhr schrieb wangwenxuan < [email protected]>: > Hi， > > I have a question. I want to calibrate the car-following model based on > real world data. But I don’t know which method I should use? Should I use > the Calibrator fist and then change different parameters value to find the > best value? Or without Calibrator to seek for the parameters’ best value? > Thank you very much! > > Best regards, > > Wenxuan Wang > > > > > wangwenxuan > [email protected] > > <https://maas.mail.163.com/dashi-web-extend/html/proSignature.html?ftlId=1&name=wangwenxuan&uid=wangwenxuan%40tongji.edu.cn&iconUrl=https%3A%2F%2Fmail-online.nosdn.127.net%2Fqiyelogo%2FdefaultAvatar.png&items=%5B%22wangwenxuan%40tongji.edu.cn%22%5D&logoUrl=https%3A%2F%2Fmail-online.nosdn.127.net%2Fqiyeicon%2F38276280dee508c6f6bfd066abd8a133.png> > 签名由 网易邮箱大师 <https://mail.163.com/dashi/dlpro.html?from=mail81> 定制 > > _______________________________________________ > sumo-user mailing list > [email protected] > To change your delivery options, retrieve your password, or unsubscribe > from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-user >
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