Data Collection

U.S. DOT and AASHTO are Co-hosting a Virtual Event on Increasing Worker and Driver Safety through Access to Work Zone Data (Training)

Co-sponsored by the U.S. Department of Transportation (U.S. DOT) and the American Association of State Highway and Transportation Officials (AASHTO), this virtual event unites geographic information s… More

Crowdsourcing for Operations (Publication)

Resource Type: Brochures and Fact Sheets

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 more…More

Work Zone Data Exchange (WZDx) – v2.0 (Publication)

Resource Type: Specifications & Special Provisions

The Work Zone Data Exchange (WZDx) Specification enables infrastructure owners and operators (IOOs) to make harmonized work zone data available for third party use. The intent is to make travel on pub…More

WZDx v1.1 – Common Core Data Specification Reference Document (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

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 sta…More

Work Zone Activity Data (WZAD) – Data Dictionary Report (Version 2) (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

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) Proje…More

A Framework for Work Zone Activity Data Collection and Management (Version 3) (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

This document describes a framework to assist transportation agencies and the broad work zone stakeholder community in establishing a standard and consistent approach for collecting, organizing, and d…More

Work Zone Activity Data (WZAD) – Needs and Opportunities (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

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 Fede…More

Utilizing Probe-Vehicle Data for Work Zone Mobility Performance Management (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

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 th…More

A Method for Expressing and Displaying the Vehicle Behavior Distribution in Maintenance Work Zones (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

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 zo…More

Roadway Construction Noise Model Version 2.0 Data Collection Program (Publication)

Resource Type: Presentations

Roadway Construction Noise Model (RCNM) is a computer program that enables the prediction of construction noise levels for a variety of construction operations based on a compilation of empirical data…More

Evaluation of Interstate Work Zone Mobility Using Probe Vehicle Data and Machine Learning Techniques (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

According to the Federal Highway Administration (FHWA), US work zones on freeways account for nearly 24% of nonrecurring freeway delays and 10% of overall congestion. Historically, there have been…More

U.S. DOT Work Zone Data Exchange Project Webinar (Training)

The U.S. Department of Transportation's (U.S. DOT) Work Zone Data Exchange (WZDx) project aims to make travel on public roads safer and more efficient through ubiquitous access to data on work zone ac… More

Systems Analysis and Design of a Smart Traffic Service System for Predictive and Smarter Mobility and Safety in Roadway Work Zones (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

Smart traffic service systems entail intelligent traffic analysis applications that enable highly functioning relationships between a range of users, including service consumers and service producers.…More

Enhancing Action Recognition of Construction Workers Using Data-Driven Scene Parsing (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

Vision-based action recognition of construction workers has attracted increasing attention for its diverse applications. Though state-of-the-art performances have been achieved using spatial-temporal …More

Development of a Travel-Time Reliability Measurement System (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

This study has developed a computerized Travel-Time Reliability Measurement System (TTRMS), which can automate the time-consuming process of gathering and managing data from multiple sources and calcu…More

The Ubiquitous Orange Traffic Cone: An Observational Study (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

Daily sightings of traffic cones were logged over a six-month period in an attempt to provide data about the frequency and novelty of such encounters, and to yield examples of the variety of uses …More

Lidar for Maintenance of Pavement Reflective Markings and Retroreflective Signs (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

Pavement markings and signs are important traffic control devices used to guide and regulate traffic movement through visual information presented to motorists. Signs and markings are made with retror…More

Improving Work Zones Every Day, in Every Way (Publication)

Resource Type: News and Other Non-research Articles

In 2015, over 700 people were killed, and 35,000 people injured in more than 96,000 work zone related crashes. This article discusses a comprehensive set of programs, strategies, and tools the Feder…More

Connected Vehicle Data-Based Tools for Work Zone Active Traffic Management (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

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 suc…More

Application of LiDAR and Connected Vehicle Data to Evaluate the Impact of Work Zone Geometry on Freeway Traffic Operations (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

Extensive literature exists regarding recommendations for lane widths, merging tapers, and work zone geometry to provide safe and efficient traffic operations. However, it is often infeasible or unsaf…More

Work Zone Intrusion Report Interface Design (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

While necessary for roadways, work zones present a safety risk to crew. Half of road workers deaths between 2005 and 2010 were due to collisions with motorists intruding on the work zone. Therefore, a…More

Statewide Data Management Best Practices for Work Zone Information (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

The availability and accessibility of reliable work zone data are essential to support data needs of various work zone planning, safety, and operations applications. This paper summarizes the findings…More

Semantic Enrichment of Spatio-temporal Trajectories for Worker Safety on Construction Sites (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

Existing literature reveals that major reasons of fatalities on construction sites are linked to mobility related issues such as unsafe human behaviors, difficult site conditions and workers striking …More

Behavioral Measures for 48 Participants in Work-Zone Messaging Driving Simulation Study Collected in 2016 at the University of Minnesota (Publication)

Resource Type: Books, Reports, Papers, and Research Articles

This study explored the impact of in-vehicle messages to alert drivers to events within a simulated work zone. Participants used a partial motion-based driving simulator made by Realtime Technologies,…More

Work Zone Data Collection and Analysis – Grant Course (Training)

This one-day course provides information to assist highway agencies in developing techniques and strategies to successfully collect and analyze work zone safety-related data for the purpose of making … More

Work Zone ITS Implementation Tool v1.0 (Publication)

Resource Type: Websites

Intelligent Transportation System (ITS) technology enables solutions that serve broader Transportation System Management and Operations (TSMO) objectives. Specifically, ITS deployments can be part …More