商品簡介
In most countries two-lane rural roads make up about 90 percent of rural networks and account for about 60 percent or more of highway fatalities worldwide - 500,000 people per year. Based on new research and the demands of many design professionals this book provides an understandable scientific framework for the application of quantitative safety evaluation processes on two-lane rural roads. The methodology described will support the achievement of quantified measures of 1) design consistency, 2) operating speed consistency, and 3) driving dynamic consistency. All three criteria are evaluated in three ranges described as "good", "fair" and "poor". It has been proved that the results of these criteria coincide with the actual accident situation prevailing on two-lane rural roads. By using the "good" ranges sound alignments in plan and profile, which match the expected driving behaviour of motorists, can be achieved. The safety criteria are then combined into an overall safety module for a simplified general overview of the safety evaluation process. The authors also encourage the coordination of safety concerns with important economic, environmental and aesthetic considerations. A CD-ROM with practical applications accompanies the text. This book will be an invaluable aid to educators, students, consultants, highway engineers and administrators, as well as scientists in the fields of highway design and traffic safety engineering.
