Work-Zone Traffic Control: Survey of Contracting Techniques

The final number of traffic control devices needed for a work-zone project and the final bill for those devices often vary from the initial estimates of the required number and charge. And the variance is usually an increase in the quantity and the price that adds to the state’s total contract cost. These facts stimulated a recent survey of the state departments of transportation (DOTs) by the Montana Department of Transportation (MDT) and the Federal Highway Administration’s (FHWA) Montana Division to gain a comprehensive perspective of state contracting techniques for work-zone traffic control devices. This article summarizes findings from the survey, which was conducted in spring 2000. Thirty-five state DOTs responded, providing a view of current practices across the country. An analysis of the survey results presents valuable insights that will help MDT and other state DOTs to improve their procedures and save money.