This paper was presented at the "Speed limits, safety and special conditions" session. These proceedings are available on CD-ROM. In 1996, Saskatchewan Highways and Transportation investigated utilizing portable or temporary rumble devices to potentially reduce the risks that are intrinsic to provincial work zones facilitating a reduction in vehicle speeds. This paper outlines the essential components of the portable rumble devices project, from the design of a multi-rope prototype to the development of specifications for use following the testing of such a device. Two test locations, one preliminary and one advanced, were studied during the 1996 construction season. The advanced assessment, predominantly the focus of this paper, achieved a decrease in mean speed for vehicles entering the work zone from 79.66 kilometers per hour without the rumble strips to 59.19 kilometers per hour with the rumble strips installed. This represents a 25,69% reduction in average velocity, corresponding to a 53 metre decrease in the emergency stopping sight required by a driver. (A)
Samenvatting