Allowable work hours (AWH), also known as Allowable Closure Hours or Limitations on Operations, for a contract dictate which hours of the day construction and maintenance activities may occur and are … [Read more...] about Night Versus Day Work—Balancing Safety, Operations, and Constructability for Short-Term Operations on Two-Lane Roads
Periods of the Day
Temporary Traffic Control for Short-Duration, Short-Term Stationary, and Mobile Operations
The August 2025 update to Temporary Traffic Control for Short-Duration, Short-Term Stationary, and Mobile Operations provides comprehensive guidance for safely managing work zones that impact traffic … [Read more...] about Temporary Traffic Control for Short-Duration, Short-Term Stationary, and Mobile Operations
Evaluating Traffic Conflicts and Crash Risk in Nighttime Maintenance Operation Areas of Highways Using Vehicles’ Trajectory Data
Highway pavement maintenance operations are increasingly conducted at night, when lane reduction combined with the complexity of nighttime conditions elevates driving risks within maintenance … [Read more...] about Evaluating Traffic Conflicts and Crash Risk in Nighttime Maintenance Operation Areas of Highways Using Vehicles’ Trajectory Data
Changes in Roadwork Policy Will Affect Drivers but WSDOT Says Workers Have to Be Kept Safe
In response to an alarming increase in roadwork zone fatalities, the Washington State Department of Transportation (WSDOT) has prioritized worker safety over driver convenience. Despite a reduction in … [Read more...] about Changes in Roadwork Policy Will Affect Drivers but WSDOT Says Workers Have to Be Kept Safe
Development of Guidelines for Vehicle and Equipment Marking and Lighting
Roadway operations equipment used by state departments of transportation (DOTs) and transportation agencies for activities such as construction, maintenance, and incident response generally deploys on … [Read more...] about Development of Guidelines for Vehicle and Equipment Marking and Lighting
Effectiveness of Lighted Work Zone Apparel: Effects on Visibility
The goal of this study is to evaluate effectiveness of lighted work zone apparel under realistic conditions. More specifically, the goal is to compare the effectiveness of various kinds of lighted … [Read more...] about Effectiveness of Lighted Work Zone Apparel: Effects on Visibility