Calibration and Validation of Microscopic Models of Traffic Flow

Because microscopic models are heavily used in applications, the appropriate calibration and validation of these models have been a recent concern. The contribution of this paper is to compare some of these models by calibrating and validating them with data from double loop detectors on a multilane freeway. To simplify this task, the models were tested by simplifying the multilane reality to a simulation of only a single lane. The results show that by simulating the multilane road with single-lane models, calibration errors (Theil’s U-value, or the root mean square error) of 14% to 16% were obtained. A validation of the models, which was done by taking the calibrated parameters of one data set to reproduce the other data sets, gives additional errors of about 0.5 to 2.5 percentage points. This is in good agreement with other calibration and validation approaches performed recently.

Record URL:
Summary URL:
Availability:
- Find a library where document is available. Order URL: http://www.trb.org/Main/Public/Blurbs/156936.aspx
Authors:
- Brockfeld, Elmar
- Kuhne, Reinhart D
- Wagner, Peter
Publication Date: 2005

Language

English

Media Info

Media Type: Print
Features: Figures; References; Tables;
Pagination: pp 179-187
Monograph Title: Traffic Flow Theory 2005
Serial:
- Transportation Research Record: Journal of the Transportation Research Board
- Issue Number: 1934
- Publisher: Transportation Research Board
- ISSN: 0361-1981

Subject/Index Terms

TRT Terms: Calibration; Freeways; Loop detectors; Microsimulation; Traffic flow; Traffic models; Validation
Uncontrolled Terms: Field data
Subject Areas: Highways; Operations and Traffic Management; I71: Traffic Theory;

Filing Info

Accession Number: 01022825
Record Type: Publication
ISBN: 0309094089
Files: TRIS, TRB, ATRI
Created Date: Apr 16 2006 8:23PM