In view of the widespread use of microscopic traffic simulation models in common practice an ever more attention on their calibration related issues is bearing. These models, indeed, depend on many parameters, and the value chosen per each of them can sensibly affect model output realism. The only way to undertake is, therefore, their calibration on real traffic data. Hence the work proposes a framework for calibrating microscopic traffic flow models that aims, in particular, to address the issues of MoP choices and calibration parameters. The whole procedure focuses on the execution of one or more tests with laboratory data. This is the only way to overcome the effect of the errors that arise when using empirical data and that regards mainly o/d flow estimation, the data measuring process and mathematical modelling of real dynamics. A crucial element of the proposed procedure is model sensitivity analysis as well, performed by using an Analysis of Variance (ANOVA). Preliminary results, obtained using the microscopic traffic simulation model AIMSUN in freeway conditions, show the capability of the framework of successfully facing the calibration problem.

A framework for the calibration of microscopic traffic flow models / Ciuffo, Biagio; Punzo, Vincenzo; Torrieri, Vincenzo. - ELETTRONICO. - (2007), pp. 1-14. (Intervento presentato al convegno 86th TRB Annual Meeting tenutosi a Washington D.C. nel 21-25/01/2007).

A framework for the calibration of microscopic traffic flow models

CIUFFO, Biagio;PUNZO, VINCENZO;TORRIERI, VINCENZO
2007

Abstract

In view of the widespread use of microscopic traffic simulation models in common practice an ever more attention on their calibration related issues is bearing. These models, indeed, depend on many parameters, and the value chosen per each of them can sensibly affect model output realism. The only way to undertake is, therefore, their calibration on real traffic data. Hence the work proposes a framework for calibrating microscopic traffic flow models that aims, in particular, to address the issues of MoP choices and calibration parameters. The whole procedure focuses on the execution of one or more tests with laboratory data. This is the only way to overcome the effect of the errors that arise when using empirical data and that regards mainly o/d flow estimation, the data measuring process and mathematical modelling of real dynamics. A crucial element of the proposed procedure is model sensitivity analysis as well, performed by using an Analysis of Variance (ANOVA). Preliminary results, obtained using the microscopic traffic simulation model AIMSUN in freeway conditions, show the capability of the framework of successfully facing the calibration problem.
2007
A framework for the calibration of microscopic traffic flow models / Ciuffo, Biagio; Punzo, Vincenzo; Torrieri, Vincenzo. - ELETTRONICO. - (2007), pp. 1-14. (Intervento presentato al convegno 86th TRB Annual Meeting tenutosi a Washington D.C. nel 21-25/01/2007).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/120496
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