Skip to main content

Highway delineator system aids crash reduction

A new delineator design is said to be helping to reduce accidents on a 200mile stretch of one of the world’s most treacherous highways. Pexco LLC has produced the ‘Dalton Delineator’ for the Dalton Highway, a remote 414mile road in Alaska, reported to be the sixth most dangerous roadway in the world. The road safety system has a cantilever structure consisting of a short length of a Davidson Flexi-Guide FG 400 Roadside Delineator post mounted to a special flexible coupler.
March 21, 2012 Read time: 2 mins
The Dalton Delineator aims to reduce crashes on one of world’s most dangerous highways
A new delineator design is said to be helping to reduce accidents on a 200mile stretch of one of the world’s most treacherous highways. 301 Pexco LLC has produced the ‘Dalton Delineator’ for the Dalton Highway, a remote 414mile road in Alaska, reported to be the sixth most dangerous roadway in the world.

The road safety system has a cantilever structure consisting of a short length of a Davidson Flexi-Guide FG 400 Roadside Delineator post mounted to a special flexible coupler. The polyurethane-made coupler is attached to a square steel tube support by the roadside. The delineator post, also known as an arm, projects horizontally out from the shoulder, above the roadway. The use of white delineator arms on one side of the road and green delineator arms on the opposite side, likened by Pexco LLC to the running lights on a boat, is said to give motorists and highways maintenance workers clear indication of their position on the road, even in the midst of a blinding snowstorm.

Half of all vehicle crashes on the Dalton Highway occur during daylight hours, while a quarter take place at night when drivers are travelling on non-lighted sections of the road.

The installation of the Dalton Delineator, which began in summer 2011, comes after Alaska DOT asked Pexco LLC in early 2009 to come up with new ideas to build on the success of its existing Dalton Highway FG 400 Roadside Delineator post.

For more information on companies in this article

Related Content

  • Checking out Europe's motorway service stations
    February 14, 2012
    A survey of a number of Europe's motorway filling stations have thrown up surprising results: some good, some bad. Experts from EuroTest have travelled almost 34,000km to check out 77 filling stations along the most important travel routes in Europe. Keeping a close eye on cameras and staff that might "blow their cover," the results they brought home with them showed that not a single facility [visited] warranted a very good rating.
  • 'Blinding success' at Welsh quarry
    February 14, 2012
    Wales is renowned for many things but dry weather is not one of them. A combination of being close to the Atlantic and having lots of mountains means that it rains a lot and this is bad news when fine screening limestone using conventional steel wire mesh, which tends to clog and blind over in damp weather.
  • Weigh in motion systems aid overweight vehicle detection
    July 12, 2012
    Modern weighing equipment helps road operators tackle the costly business of road damage caused by overloaded trucks as Patrick Smith reports. Overloading of commercial vehicles has a major impact on the life expectancy of road networks. The cost of premature road failure and repairs is a major burden on many governments particularly in developing countries where this problem diverts vital funding that could otherwise be spent on health and education.
  • Bertha ends her Alaskan Way voyage in Seattle
    December 21, 2017
    Seattle's State Route 99 viaduct is coming down. David Arminas was on site. Bertha, the world’s largest diameter earth pressure balance tunnel boring machine, with a cutterhead diameter of 17.5m, is no more. Her 2.7km journey underneath the waterfront area of Seattle finished on April 4 and the power went off for the last time on an extraordinary TBM that had finally completed an extraordinary job. “A small sidewalk job would have had more impact on city traffic than we have had,” says Brian Russell a v