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

  • Road safety award for average speed scheme
    November 28, 2014
    A route enforcement and casualty reduction scheme on the strategic A14 in the UK has won a prestigious Prince Michael International Road Safety Award. The A14 route between the Midlands and East Anglia operates at the national speed limit of 70mph as a dual carriageway with central reserve and no hard shoulder. The average annual daily traffic figure is 74,000 and with no motorways or other high standard diversion routes along this corridor, journeys can be seriously delayed when congestion or collisio
    Read More
  • Oregon DOT wins Best of ITS 2015 award
    August 14, 2015
    The Oregon Department of Transportation improved safety on OR 217 by implementing a variety of signage and roadway enhancements. OR 217 currently experiences traffic congestion during peak commute times because of high-density traffic and crashes. The project focused on reducing crashes, helping to clear crashes quickly when they do occur, and giving motorists the ability to make informed travel decisions about traffic flow and roadway conditions. Since collisions on a busy highway can bring traffic to a h
    Read More
  • Camera technology a flexible and cost-effective option
    June 7, 2012
    Perceptions of machine vision being an expensive solution are being challenged by developments in both core technologies and ancillaries. Here, Jason Barnes and David Crawford look at the latest developments in the sector. A notable aspect of machine vision is the flexibility it offers in terms of how and how much data is passed around a network. With smart cameras, processing capabilities at the front end mean that only that which is valid need be communicated back to a central processor of any descripti
    Read More
  • City of Greenville adopts Wavetronix traffic sensor technology
    February 21, 2013
    The US City of Greenville has begun phasing in new vehicle detection technology at its traffic signals. The state-of-the-art traffic sensors are expected to provide numerous benefits to motorists including improved safety, cost savings, greater mobility and increased productivity. The city’s 115 vehicle-activated signalised intersections currently have more than 900 in-road sensors that detect the presence of vehicles. The loop detectors, which have been widely used throughout the US for more than four de
    Read More

Highlighted Content