Evaluation of Dynamic Speed Display Signs (DSDS).

Download or read book Evaluation of Dynamic Speed Display Signs (DSDS). written by Edward Roderick Rose and published by . This book was released on 2003 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Overall, average speeds were reduced by 9 miles per hour at the school speed zone. Elsewhere, the effect of the DSDS was less dramatic, with average speeds reduced by 5 mph or less, depending on the location tested. As expected, the influence of a DSDS was found to differ depending on how fast a motorist approached the DSDS. Those motorists traveling faster than the posted speed did appear to reduce their speed more significantly in response to the DSDS than did motorists traveling at or below the posted speed limit. The results of this project suggest that DSDS can be effective at reducing speeds in permanent applications if appropriate site conditions apply.