UDOT launches variable speed limit system

The Utah Department of Transportation (UDOT) has installed a new US$750,000 electronic sign system on Interstate 80 in Parleys Canyon that will allow engineers to adjust the speed limit during storms or icy weather. Eight electronic signs are in eastbound lanes, and seven in westbound lanes. Data from road sensors shows the road condition, along with the canyon’s temperature and humidity and traffic speed, while cameras will show visibility, enabling traffic engineers to remotely adjust the speed limit s
January 8, 2014 Read time: 1 min
The 1904 Utah Department of Transportation (UDOT) has installed a new US$750,000 electronic sign system on Interstate 80 in Parleys Canyon that will allow engineers to adjust the speed limit during storms or icy weather. Eight electronic signs are in eastbound lanes, and seven in westbound lanes.

Data from road sensors shows the road condition, along with the canyon’s temperature and humidity and traffic speed, while cameras will show visibility, enabling traffic engineers to remotely adjust the speed limit signs and send alerts to the Utah Highway Patrol.

"Its whole aim is to improve safety and the consistency of flow in Parleys Canyon during weather events," said Robert Miles, UDOT Region 2 East District engineer. "We’re excited about it. We think we can really affect the safety and capacity of the roadway."
Air Quality & Weather Systems Detection, Monitoring & Machine Vision Urban Traffic Control

For more information on companies in this article

Related Content

  • Machine vision’s transport offerings move on apace
    June 30, 2016
    Colin Sowman considers some of the latest advances in camera technology and transport-related vision technology applications. Vision technology in the transportation sector is moving apace as technical developments on both the hardware and software sides combine to make cameras more multifunctional with a single digital camera now able to cover a multitude of tasks.
    Read More
  • South west’s first smart motorway opens
    January 15, 2014
    The first smart motorway scheme in the UK’s south west has been officially launched, covering seven miles of motorway around the Almondsbury interchange and including junctions 19-20 on the M4 and junctions 15-17 on the M5. It is designed to help reduce congestion and improve safety and journey times by introducing variable speed limits and opening the hard shoulder during busy traffic periods. The improvements to the M4 and M5 use a range of technologies and operational systems to reduce congestion and
    Read More
  • Moveble barriers improve workzone safety, reduce costs
    January 25, 2012
    Two phases of an arterial reconstruction project in Salt Lake City have provided a compelling cost-based argument for moveable barriers.
    Read More
  • Hartford’s tailors winter maintenance on Esri’s GIS platform
    August 5, 2016
    The in-house winter maintenance and vehicle tracking system built by the Public Works Department in Hartford, Connecticut, coped with record snowfalls and cut costs too. When it comes to dealing with the effects of mother nature, transport agencies can find themselves in a lose-lose situation: criticised if the roads or rail lines are disrupted by snow, ice or floods for more than a few hours and lambasted for wasting money if the equipment and stockpiles put in place for a hard winter remain unused.
    Read More

Highlighted Content