Study shows curve warning systems ‘reduce crashes’

A study by the US Federal Highway Administration’s Highways for Life has found a small but consistent reductions in mean and 85 percentile speeds on dangerous bends through the use of Tapco’s BlinkerChevron dynamic curve warning and guidance system (DCWGS) instead of static warning signs. The system's detects oncoming vehicles up to 90m (300ft) from the curve and will trigger the flashing LEDs on the signs if the vehicle’s speed exceed a predetermined level to warn the driver of the dangerous curves with e
February 24, 2016 Read time: 2 mins
RSSA study by the US Federal Highway Administration’s Highways for Life has found a small but consistent reductions in mean and 85 percentile speeds on dangerous bends through the use of 989 Tapco’s BlinkerChevron dynamic curve warning and guidance system (DCWGS) instead of static warning signs.

The system's detects oncoming vehicles up to 90m (300ft) from the curve and will trigger the flashing LEDs on the signs if the vehicle’s speed exceed a predetermined level to warn the driver of the dangerous curves with each chevron flashing sequentially.

Set up to examine improving safety performance on rural horizontal curves, the study concluded that ‘overall, the sign appeared to be effective in reducing speed and crashes’. Analysis showed a reduction in vehicles exceeding the speed limit or advisory speed limit by 5, 10, 15, or 20 mph, and particularly in the higher ranges.

Air Quality & Weather Systems

For more information on companies in this article

Related Content

  • Intersection collision avoidance system trial
    January 31, 2012
    Although much of the emphasis of research into intersection management has tended to concentrate on the needs of urban locations, there remain specific issues pertaining to rural intersections which need to be addressed. Here, Rebecca Szymkowski and Greg Helgeson, Wisconsin DOT, Todd Szymkowski, University of Wisconsin-Madison, and Craig Shankwitz and Arvind Menon, University of Minnesota detail progress on an intersection collision avoidance system for more remote locations.
    Read More
  • Workzone safety can be economically viable
    October 24, 2014
    David Crawford looks how workzone safety can be ‘economically viable’. Highway maintenance is one of the most dangerous construction industry occupations in Europe. Research from The Netherlands on fatal crashes indicates that the risk facing road workzone operatives is ‘significantly higher’ than that for the general construction workforce. A survey carried out by the Highways Agency, which runs the UK’s motorway and trunk road network, has suggested that 20% of road workers have suffered injuries from pa
    Read More
  • Danish study shows higher speed limits are safer
    February 25, 2014
    A two-year experiment by the Danish road directorate shows accidents have fallen on single-carriageway rural roads and motorways where the speed limit was raised. Since the speed limit on some stretches of two-way rural roads was increased from 80 to 90 km/h, accidents have decreased due to a reduction in the speed differential between the slowest and fastest cars, resulting in less overtaking. The slowest drivers have increased their speeds, but the fastest 15 per cent drive one km/h slower on average
    Read More
  • Crash prevention systems improving rapidly says IIHS
    June 2, 2014
    According to its latest report, less than a year into a new Insurance |Institute for Highway Safety (IIHS) ratings program for front crash prevention, auto manufacturers are making strides in adopting the most beneficial systems with automatic braking capabilities and are offering the features on a wider variety of models. Twenty-one of 24 cars and SUVs, all 2014 models unless noted, earn an advanced or higher rating in the latest round of IIHS evaluations. "We are already seeing improvements from automaker
    Read More

Highlighted Content