Crowdsourcing turns transportation system users into real-time sensors on system performance, providing low-cost, high-quality data on traffic operations, roadway conditions, travel patterns, and … [Read more...] about Crowdsourcing for Operations
Data Collection
WZDx v1.1 – Common Core Data Specification Reference Document
This document was developed through collaboration with the WZDx Working Group to describe a set of “common core” data concepts, their meaning, and their enumeration (as applicable) in order to … [Read more...] about WZDx v1.1 – Common Core Data Specification Reference Document
Work Zone Activity Data (WZAD) – Data Dictionary Report (Version 2)
This document is the Work Zone Data Dictionary (WZDD) Report, developed as the primary deliverable for Task 4 under the Federal Highway Administration (FHWA’s) Work Zone Data Initiative (WZDI) … [Read more...] about Work Zone Activity Data (WZAD) – Data Dictionary Report (Version 2)
Work Zone Activity Data (WZAD) – Needs and Opportunities
This document describes the methodology used and information gathered from seven virtual and in-person forums conducted in April 2018. These forums were conducted to introduce stakeholders to the … [Read more...] about Work Zone Activity Data (WZAD) – Needs and Opportunities
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
A Method for Expressing and Displaying the Vehicle Behavior Distribution in Maintenance Work Zones
Maintenance work zones on the road network have impacts on the normal travelling of vehicles, which increase the risk of traffic accidents. The traffic characteristic analysis in maintenance work … [Read more...] about A Method for Expressing and Displaying the Vehicle Behavior Distribution in Maintenance Work Zones