Central to the effective design of work zones is being able to understand how drivers behave as they approach and enter a work zone area. States use simulation tools in modeling freeway work zones to … [Read more...] about Validating the Performance of the FHWA Work Zone Model Version 1.0: A Case Study Along I-91 in Springfield, Massachusetts
Traffic Queuing
Upgrading the FHWA Work Zone Model Version 2.0 and Validating its Performance Along I-91 in Springfield, Massachusetts
Freeway work zones can have significant safety and operational impacts. To mitigate these, planners and engineers rely on accurate simulation tools to assess various work zone design and scheduling … [Read more...] about Upgrading the FHWA Work Zone Model Version 2.0 and Validating its Performance Along I-91 in Springfield, Massachusetts
Utilizing Probe-Vehicle Data for Work Zone Mobility Performance Management
The Virginia Department of Transportation (VDOT) uses probe vehicle data from different sources to measure highway system mobility performance at both the macro- and microlevels. VDOT uses delay as … [Read more...] about Utilizing Probe-Vehicle Data for Work Zone Mobility Performance Management
Connected Vehicle Data-Based Tools for Work Zone Active Traffic Management
Work zones present challenges to safety and mobility that require agencies to balance limited resources with vital traffic management activities. It is important to obtain operational feedback for … [Read more...] about Connected Vehicle Data-Based Tools for Work Zone Active Traffic Management
Merging Vehicles and Lane Speed-Flow Relationship in a Work Zone
In addition to closed merge lanes as physical bottlenecks of work zones, traffic oscillations caused by merging vehicles at multiple locations could reduce work zone capacity. This study took a … [Read more...] about Merging Vehicles and Lane Speed-Flow Relationship in a Work Zone
Iowa Work Zones are Getting Smarter
Intelligent Transportation Systems (ITS) tools including traffic sensors and cameras are deployed in 28 state highway work zones in Iowa. Those tools sent data on traffic speed, queue length, and … [Read more...] about Iowa Work Zones are Getting Smarter