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RISImpact of Driver Compliance on the Safety and Operational Impacts of Freeway Variable Speed Limit Systems
Publisher: American Society of Civil Engineers
Abstract: Variable speed limit (VSL) systems enable freeway system managers to change the posted speed limit on a section of roadway in response to varying conditions. VSL system goals may include homogenizing traffic flow, improving ...
Assessing Expected Accuracy of Probe Vehicle Travel Time Reports
Publisher: American Society of Civil Engineers
Abstract: The use of probe vehicles to provide estimates of link travel times has been suggested as a means of obtaining travel times within signalized networks for use in advanced travel information systems. Past research in the ...
Signalized Intersection Analysis and Design: Implications of Day-to-Day Variability in Peak-Hour Volumes on Delay
Publisher: American Society of Civil Engineers
Abstract: Traffic signal timing plans are typically developed on the basis of turning movement traffic and pedestrian volume counts aggregated to 15-min intervals and obtained over a 4 or
Application of System Dynamics in Car-Following Models
Publisher: American Society of Civil Engineers
Abstract: Over the past 50 years, many different “car-following” models have been proposed to describe driver behavior in a traffic stream. A number of inherent assumptions about human constraints and preferences in existing ...
Estimating Pedestrian Volumes at Each Crosswalk of Intersections: Comparison of Land-Use Models and Short-Term Count Methods
Publisher: ASCE
Abstract: Estimating pedestrian exposure for all the intersections in a jurisdiction is crucial for developing strategies with a focus on pedestrians. Some engineering applications require the annual average daily pedestrian traffic ...
Queue Length Estimation on Urban Signalized Intersection Combining Automatic Vehicle Identification and Vehicle Trajectory Data
Publisher: American Society of Civil Engineers
Abstract: Queue length is one of the indicators of the state of traffic and is often used to measure the operational state of signalized intersections. Many studies have proposed estimating queue length from vehicle trajectory data ...
Impact of COVID-19 on Traffic Volume, Violations, and Crashes in Fortaleza, Brazil
Publisher: ASCE
Abstract: This research evaluated the effect of the COVID-19 social isolation orders on traffic volume, traffic violations and road crashes in the city of Fortaleza, Brazil. Using data from automated traffic enforcement cameras, a ...