This report contains a comprehensive assessment of automated speeding and red light enforcement activity in the United States, and provides guidelines for the start-up and operation of automated enforcement programs to reduce speeding and red light running in an effort to improve highway safety.&
This report provides comprehensive and uniform guidelines for safe and efficient yellow change and all-red clearance intervals at signalized intersections. The project (1) reviewed and compared the definitions of yellow change and all-red clearance intervals,(2) conducted a critical review o
Lanes for through movements that begin upstream of a signalized intersection and end downstream of the intersection—auxiliary through lanes (ATLs)—are recognized as a moderate-cost approach to increase intersection and overall corridor capacity. NCHRP Report 707 provides guidelines to use for jus
This report documents and presents the results of a study for evaluating the performance of Managed Lane (ML) facilities on freeways. A methodological framework is for analyzing freeway facilities with ML and General Purpose (GP) lanes operated in parallel. The framework acknow
The decision to install a left-turn accommodation is a complex one as state and local transportation agencies weigh the left-turn demand, the cost of the accommodation, and the anticipated operational and safety benefits. Clear and consistent application of left-turn accommodations is important f
This report presents valuable information on the appropriate selection of default values when analyzing highway capacity and level of service based on an extensive set of field data from across the United States. In addition, the report describes how to prepare service volume tables, which c
This report presents guidance for the safe and effective deployment of traffic enforcement strategies in work zones on high-speed highways with speed limits greater than 45 mph. The report discusses planning, design, and operation of traffic enforcement strategies, and associated a
The report is based on a series of case studies, from the United States and one from Great Britain, that describe successful business processes. The case studies show how business processes were successfully improved in operational areas such as traffic incident management (TIM), work zone m
The guide is based on a series of case studies, from the United States and one from Great Britain, that describe successful business processes. The case studies show how business processes were successfully improved in operational areas such as traffic incident management (TIM), work zone ma
This report describes a performance measurement framework that supports the collaborative decision-making framework for additions to highway capacity. Five broad areas of performance are identified: transportation, environment, economics, community, and cost. The report devotes a chapter to each
