Speeding in work zones is one of the most common traffic violations observed by road builders and road maintenance crews. It creates an unsafe environment for road workers and all types of road users. This synthesis is intended to help address this situation by reviewing work zone speed management efforts in Canada and the United States. The report provides an overview of technologies and methods for managing speed in work zones, with topics ranging from posted speed limit reductions and narrowing lanes to portable variable message signs and enforcement. In addition, the report discusses other methods for speed management, including merge control, driver and worker education, and real-time traffic information systems. The report also provides a number of conclusions and recommendations based on the synthesis, which identify some of the key problems and solutions.

The Canadian Traffic Signal Warrant Matrix Procedure 2005 is designed to provide a basis for making rational, defensible decisions on the installation of traffic signal control devices at intersections. The new warrant procedure, which replaces the document entitled Canadian Traffic Signal Warrant Procedure (2003), is built on a foundation of existing practices, combined with relevant adjustment factors to minimize data collection requirements. It is intended to be easy to use, is supported by Canadian experience and is based on Canadian needs. The document includes revisions to the 2003 procedure as well as calculations of specific factors required to modify movement-by-movement cross-products such as pedestrian exposure factor, a right turn reduction factor and a platoon adjustment factor. The new document is supported by updated software to perform the matrix procedure calculations. The software is provided on a separate CD for the buyers of the hardcopy version of the Procedure.