Freeway Construction and Maintenance Zones: An Investigation of Accidents and Accident Reporting Systems in Illinois. Volume 1

摘要

The purpose of the research was to estimate the added accident hazard due to the presence of highway work zones on the Chicago Area Expressway System. The study also evaluates existing practices in reporting construction zone accidents in Illinois and documents discrepancies between IDOT standards and observed traffic control layouts at 46 construction zones in the study area. Finally, an accident case study is presented for a long-term construction project which was monitored by the research team in the summer of 1986.