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Work Zone Safety Information Clearinghouse

Library of Resources to Improve Roadway Work Zone Safety for All Roadway Users

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Traffic Models

Simulation and Evaluation of Speed and Lane-Changing Advisory of CAVS at Work Zones in Heterogeneous Traffic Flow

Emerging connected autonomous vehicle (CAV) technologies provide an opportunity to the vehicle motion control to improve the traffic performance. This study simulated and evaluated the CAV-based speed … [Read more...] about Simulation and Evaluation of Speed and Lane-Changing Advisory of CAVS at Work Zones in Heterogeneous Traffic Flow

An Alternative Design for Traffic Intersections With Work Zones by Using Pre-signals

The lane closures caused by the work zone at the approaches create a negative impact on the operational effectiveness of the signalized intersections. This paper presents an innovative design for … [Read more...] about An Alternative Design for Traffic Intersections With Work Zones by Using Pre-signals

Study of Work Zone Traffic Safety Under Adverse Driving Conditions With a Microscopic Traffic Simulation Approach

Work zone traffic safety under adverse weather conditions has been a serious concern for drivers and transportation agencies. Existing studies on work zone traffic safety with statistical approaches … [Read more...] about Study of Work Zone Traffic Safety Under Adverse Driving Conditions With a Microscopic Traffic Simulation Approach

Fault-Tolerant Control of Variable Speed Limits for Freeway Work Zone Using Likelihood Estimation

Freeway work zone with lane closure can lead to disruption to local traffic and cause significant impacts on mobility, safety and environmental sustainability. To mitigate traffic congestion near work … [Read more...] about Fault-Tolerant Control of Variable Speed Limits for Freeway Work Zone Using Likelihood Estimation

Machine Learning Approach to Forecast Work Zone Mobility Using Probe Vehicle Data

The aim of deploying intelligent transportation systems (ITS) is often to help engineers and operators identify traffic congestion. The future of ITS-based traffic management is the prediction of … [Read more...] about Machine Learning Approach to Forecast Work Zone Mobility Using Probe Vehicle Data

Probabilistic Speed–Flow Models in Highway Construction Work Zones

Since variations in exogenous factors could cause unpredictable fluctuations/variability of the speed–flow relationship, the aim of this study was to develop probabilistic speed–flow relationships in … [Read more...] about Probabilistic Speed–Flow Models in Highway Construction Work Zones

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