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Senate bill 233 (Davis 1987) required a current study on the wrong-way problem on freeways. This report discusses solutions developed over the years to prevent wrong-way driving by Caltrans, results of recent camera surveillance studies and the current annual wrong-way monitoring program. To determine if other states had developed any new solutions to the problem, traffic engineers from all the states were surveyed. The recommendations to prevent wrong-way accidents are in the areas of sign maintenance, annual accident monitoring using a check-list process, ramp and intersection design, and reducing drunk drivers. It also recommends the purchase of new still camera, video, or movie camera and detector equipment, and continuing the pavement light experiment in San Diego.
This special investigation report looks at one of the most serious types of highway accidents-collisions involving vehicles traveling the wrong way on high-speed divided highways. The goal of this investigative project is to identify relevant safety recommendations to prevent wrong-way collisions on such highways and access ramps. The investigations included in the report take a focused view of the driver and highway issues affecting wrong-way collisions. The report addresses the following safety issues concerning wrong-way driving: driver impairment, primarily from alcohol use, with consideration of older driver issues and possible drug involvement; the need to establish, through traffic control devices and highway design, distinctly different views for motorists approaching entrance and exit ramps; monitoring and intervention programs for wrong-way collisions; and in-vehicle driver support systems.
Every day thousands of people are killed and injured on our roads. Millions of people each year will spend long weeks in the hospital after severe crashes and many will never be able to live, work or play as they used to do. Current efforts to address road safety are minimal in comparison to this growing human suffering. This report presents a comprehensive overview of what is known about the magnitude, risk factors and impact of road traffic injuries, and about ways to prevent and lessen the impact of road crashes. Over 100 experts, from all continents and different sectors -- including transport, engineering, health, police, education and civil society -- have worked to produce the report. Charts and tables.
Drivers who make wrong-way entries onto freeways pose a serious risk to the safety of other motorists and themselves. This report documents the recommended guidelines and best practices developed during the project. The research team based the guidelines and best practices on the results of the literature review, surveys, analysis of freeway-related wrong-way crashes in Texas, and evaluation of available countermeasures. This report also provides a wrong-way entry checklist for engineers and field crews to use for reviewing wrong-way entry issues or suspected problem locations. This checklist was based on one currently used by the California Department of Transportation with some additions based on project findings.
This book looks at one of the most serious types of highway accidents--collisions involving vehicles traveling the wrong way on high-speed divided highways. The goal of this investigative project is to identify relevant safety recommendations to prevent wrong-way collisions on such highways and access ramps. The investigations included in the book take a focused view of the driver and highway issues affecting wrong-way collisions. The book addresses the following safety issues concerning wrong-way driving: driver impairment, primarily from alcohol use, with consideration of older driver issues and possible drug involvement; the need to establish, through traffic control devices and highway design, distinctly different views for motorists approaching entrance and exit ramps; monitoring and intervention programs for wrong-way collisions; and in-vehicle driver support systems.