In recent years, significant effort and money have been invested to enhance highway safety. As available funds decrease, the allocation of resources for safety

In recent years, significant effort and money have been invested through research and implemented safety projects to enhance highway safety in Virginia. However

The purpose of this manual is to provide clear and helpful information for maintaining gravel roads. Very little technical help is available to small agencies t

TRB's National Cooperative Highway Research Program (NCHRP) Report 672: Roundabouts: An Informational Guide - Second Edition explores the planning, design, cons

Longitudinal data analysis for biomedical and behavioral sciences This innovative book sets forth and describes methods for the analysis of longitudinaldata, em