Integration of a driving simulator and a traffic simulator case study: exploring drivers' behavior in response to variable message signs
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TL;DR: In this paper, a driving simulator has been integrated with a traffic simulator at the network level to allow subjects to drive in a fairly realistic environment with a realistic traffic flow and density.
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Abstract: For the first time, a driving simulator has been integrated with a traffic simulator at the network level to allow subjects to drive in a fairly realistic environment with a realistic traffic flow and density. A 10 mi2 (25 km2) network was developed in a driving simulator and then exported to a traffic simulator. About 30 subjects drove the simulator under different traffic and driving conditions and variable message sign (VMS) information, both with and without integration. Route guidance was available for the subjects. The challenges of the integration process are explained and its advantages investigated. The study concluded that traffic density, VMS reliability and compliance behavior are higher when driving and traffic simulators are integrated. To find factors affecting route diversion, researchers applied a binary logistic regression model. The results indicated that the original chosen route, displayed VMS information, subjects' attitude toward VMS information helpfulness, and their level of exposure to VMS affect route diversion. In addition, a multinomial logistic regression model was employed to investigate important factors in route choice. The results revealed that there is a significant correlation with driver route choice behavior and their actual travel time, the need for GPS, VMS exposure and also the designed scenarios. It should be noted that the paper was peer-reviewed by TRB and presented at the TRB Annual Meeting, Washington, D.C., January 2016.
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Citations
Comprehending the roles of traveler perception of travel time reliability on route choice behavior
TL;DR: The results illustrate that trip purpose, travel time reliability, and income are important determinants of drivers’ route choice and information-related compliance behaviors.
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Impacts of variable message signs on en-route route choice behavior
TL;DR: The findings from this study can assist traffic authorities in designing the most appropriate VMS for different traffic congestions based on driver characteristic distribution and the road capacity for improving the practicability of VMS information and further provide the theoretical evidence for the design of in-vehicle personalized information service systems.
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The influence of variable message signs on en-route diversion between a toll highway and a free competing alternative
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TL;DR: This study analyzes the optimum number of units of information Dynamic Message Signs (DMSs) should display to influence driver speeding behavior and reveals that participants older than 55 slow down the most when they encounter DMSs with 6–7 units of information.
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