A three-year study of urban arterial work zones is currently in progress. The objective of the study is to develop improved guidelines for selecting and implementing work zone traffic control on urban arterials. The second year study efforts are documented in a three volume report. The Technical Report appears in Volume 1 and the Appendices for Volume 1 appear in Volume 2. This report is Volume 3, and contains the data and supporting documentation used in the research analysis. The data includes traffic volumes, travel times, and traffic accidents. It also includes the motorist survey instruments and typical traffic control plans. The study activities of the first two years confirm the need for improved guidelines. Current research and guidelines do not thoroughly address the topic. Field practice indicates a variation in the significance given to work zone traffic control on arterials. Traffic data indicates a decrease in traffic performance in the vicinity of construction zones. Surveys of motorists indicated they do not adequately understand construction signing and are concerned about the impacts of the construction on their mobility. The preliminary findings and preliminary guidelines included in Volume 1 address a number of problem areas related to urban arterial work zones including traffic signals, left turns, lane widths, accidents, construction activities, driver needs, and public relations.
Samenvatting