Virginia Tech Transportation InstituteGaj, StephenRakha, Hesham A.Gao, Yu2015-07-312015-07-312010-05Rakha, H. A., Flintsch, A. M., Arafeh, M., Abdel-Salam, A.-S. G., Dua, D., & Abbas, M. (2008). Access control design on highway interchanges. (CDOT-2013-17). Blacksburg, VA: Virginia Tech Transportation Institute. Retrieved from http://www.virginiadot.org/vtrc/main/online_reports/pdf/08-CR7.pdf.VT-2008-01http://hdl.handle.net/10919/55102The paper develops procedures for calibrating the steady-state component of various car following models using macroscopic loop detector data. The calibration procedures are developed for a number of commercially available microscopic traffic simulation software, including: CORSIM, AIMSUN2, VISSIM, Paramics, and INTEGRATION. The procedures are then applied to a sample dataset for illustration purposes. The paper then compares the various steady-state car-following formulations and concludes that the Gipps and Van Aerde steady-state car following models provide the highest level of flexibility in capturing different driver and roadway characteristics. However, the Van Aerde model, unlike the Gipps model, is a single-regime model and thus is easier to calibrate given that it does not require the segmentation of data into two regimes. The paper finally proposes that the car-following parameters within traffic simulation software be link-specific as opposed to the current practice of coding network-wide parameters. The use of link-specific parameters will offer the opportunity to capture unique roadway characteristics and reflect roadway capacity differences across different roadways.21 pagesapplication/pdfenIn CopyrightLoop detectorsCar followingMacroscopic traffic flowCalibrationTraffic simulationState of the artLinks (networks)Highway capacityTraffic flow--measurementTraffic patternsVehicle detectors--calibrationHighway capacityTraffic flowGovernment documenthttp://ntl.bts.gov/lib/47000/47000/47019/VT-2008-01.pdf