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
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 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

February 24, 2016

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 25, 2014

Danish study shows higher speed limits are safer

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
January 31, 2012

Intersection collision avoidance system trial

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.
October 22, 2014

Bespoke ITS is helping to reduced collisions on America’s rural roads

David Crawford cherrypicks conference and award highlights Almost 30% of all US citizens live in rural areas or very small communities, and 34 of the 50 states exceed this level in their own populations, with the proportions rising as high as 85%. And although rural routes carry only 35% of all traffic, the accidents that occur on them account for some 54% of all US road traffic accident deaths.
boombox1

Highlighted Content

boombox2