Shoulder and rest area use study procedure guide

Paper 1: A guide has been prepared by the Highway Research Board Committee on Shoulders and Medians to meet the need for standardized procedures in conducting shoulder use studies. There is a growing need for more complete factual information on driver stopping practices on highway shoulders. Paper 2: A guide has been prepared to develop and standardize procedures for conducting studies of rest area use. Procedures are set forth in the guide that will be adaptable to various study conditions and provide reasonably uniform, comparable, and accurate data of greatest utility and benefit to the states preparing and using future rest area study data.