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

  • Don’t drive drunk – or use a hands-free phone
    August 29, 2019
    Despite law changes, drivers’ bad habits have been creeping back in. TRL’s Dr Shaun Helman tells Adam Hill why using a phone at the wheel is just as distracting as driving after a few drinks esearch from as far back as 2002 (see box) suggests that driving while making a phone call – either hands-free or holding a handset to your ear – creates the same amount of distraction as being drunk behind the wheel. While it is notoriously hard to predict how alcohol will affect an individual (due to the speed of
    Read More
  • Enforcement suppliers highlight industry best practice
    March 15, 2012
    Major suppliers of enforcement technology highlight the countries, regions or cities that they consider to be leading the way in reduction of road traffic violations. The French government’s ambitious programme of enforcing traffic law violations has proven to be an unrivalled success and is continuing to bring improvements in road safety with innovative enforcement technology.
    Read More
  • Intelligent parking guidance relieves congestion, reduces costs
    July 24, 2012
    O R Tambo International Airport, near the city of Johannesburg, is the largest airport in Africa. It serves as the primary airport for domestic and international travel to/from South Africa and is one of 10 airports operated by Airports Company South Africa (ACSA). This airport places a massive demand on road infrastructure and parking facilities since a majority of travellers get to the airport by motor vehicle. The demand for parking left many people searching for a parking space for eight minutes or more
    Read More
  • ARTBA proposes path to breaking gridlock on transportation funding
    March 13, 2015
    The American Road & Transportation Builders Association (ARTBA) has outlined a detailed proposal it believes could end the political impasse over how to fund future federal investments in state highway, bridge and transit capital projects. The ‘Getting beyond gridlock’ plan would marry a 15 cents-per-gallon increase in the federal gas and diesel motor fuels tax with a 100 per cent offsetting federal tax rebate for middle and lower income Americans for six years. The plan, ARTBA says, would fund a US$401 bil
    Read More

Highlighted Content