MT DOT: LOWER SPEED LIMITS THAN ENGINEERING RECOMMENDATIONS

-> A Montana Department of Transportation (MDT) study examined the safety and operational effects of posting speed limits lower than engineering recommendations. (Speed Limits Set Lower than Engineering Recommendations: http://bit.ly/2eRZTpv) It involved a comprehensive literature review, a survey of other state transportation agencies, the collection of speed and safety data from a variety of Montana roadways, and an analysis of these data. MDT concluded that setting posted speed limits 5 mph lower may result in operating speeds more consistent with the posted speed and have overall safety benefits, while posting limits 15 or 25 mph lower does not appear to produce operating speeds consistent with the posted speed limit or provide safety benefits. http://bit.ly/2eS09o7

from CenterLines, the e-newsletter of the National Center for Bicycling & Walking.