Night Work Specification of Nova Scotia, Canada: A Review of Development and Revisions

Abstract

This paper describes the development and implementation of a specification for nighttime highway construction and maintenance projects in Nova Scotia, Canada, with the details of the specification and the lessons learned during its use on projects in the years 2002, 2003, and 2004. Increasing traffic volumes and the demand from the motoring public to minimize delays at work zones throughout North America have led to the scheduling of some highway maintenance and construction activities during nighttime hours. That has also been the experience in Nova Scotia. The first edition of the specification was developed by compiling information from many sources. A literature search, discussions with most American state and Canadian provincial agencies, and research data from TRB and other sources were used in the development of the specification. This specification has been revised each year on the basis of further research and practical experience with its use. It has been used on nighttime highway projects in Nova Scotia since 2002.