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

  • Australian centre wins road safety prize
    August 2, 2012
    Creating safer highways using low-cost, multi-disciplinary approaches to improve road safety has won 3rd Prize for the NSW centre for Road Safety in the 2007 IRF Road Safety Awards The Pacific Highway, a busy 700km interstate freight corridor from Sydney to the Queensland state border, and the Princes highway, a 430km stretch from Sydney to the Victoria state border, are important highway links in New South Wales (NSW), Australia, and both suffered high accident and fatality records. The Roads and Traffic A
  • Securing safer transportation infrastructure through non-destructive technology
    June 16, 2014
    Kevin Vine reports on the use of non-destructive testing for structural analysis of bridges Seven years ago, the overpass collapse in Laval, Québec that led to the death of five people brought to light severe issues with the state of the country’s bridges and transportation infrastructure. More recently, a crack in the Champlain Bridge to Montreal that forced over 160,000 commuters to find alternate routes to work reaffirmed a need for greater emphasis on early detection before a crisis occurs.
  • PERI fills gap in Greek market
    February 19, 2013
    A team of Greek and German PERI engineers have developed a comprehensive formwork and scaffolding solution for the T4 bridge on the A7 motorway in Greece. The 160km long A7 connects Kalamata in the south to Corinth in the northwest of the Peloponnese peninsula. On one stretch of the motorway a 390m long arched bridge – known as T4 – is being used to close the gap between Paradisia and Tsakona. Set for completion in early 2014, two-thirds of the 22m wide bridge superstructure will be suspended on a steel arc
  • Foundations for Mexico highway with help from Liebherr
    November 9, 2017
    A Liebherr rotary drill rig and oscillator combination has been working in Mexico on a highway project for contractor Mota-Engil. A Liebherr piling rig is playing an important role on a major Mexican highway construction project being carried out by a division of the Portuguese firm Mota-Engil. The use of the rig by Mota-Engil Mexico’s newly formed geotechnical division is helping to set new quality standards for piling in the country. The contractor is leasing one of the latest Liebherr LB 24-270 rotary