NEMA publishes new standard for portable traffic signals

The US National Electrical Manufacturers Association (NEMA) has published NEMA TS 5-2017 Portable Traffic Signal Systems (PTSS) Standard.
May 22, 2017 Read time: 1 min

The US 7174 National Electrical Manufacturers Association (NEMA) has published NEMA TS 5-2017 Portable Traffic Signal Systems (PTSS) Standard. This new standard covers traffic signalling equipment used to enable and expedite the safe movement of vehicle traffic in work zones during roadway construction, such as single-lane road closures during emergencies and planned events.

PTSS are commonly used to supersede flag use during roadway construction. While PTSS are used most commonly for single-lane road closures, they are also used during or after times of emergencies, planned events and non-normative vehicular signalisation needs.

PTSS are also used before or while permanent signals are being installed to reduce traffic bottlenecks and improve intersection safety during these transition times. PTSS are designed to enable critical movement of traffic using the implementation of appropriate new and existing standards.

Urban Traffic Control

For more information on companies in this article

Related Content

  • Integrate systems to reduce roadside infrastructure
    January 27, 2012
    David Crawford reviews promising current developments. Instrumentation of the road infrastructure has grown to become one of the most dynamic sectors of the ITS industry. Drivers for its deployment include global concerns over the commercial and environmental pressures of traffic congestion, the importance of keeping drivers informed throughout their journeys, and the need to reduce accident rates and promote the safety of all road users, for example by enforcing traffic safety rules.
    Read More
  • Dynamic lane closures cuts time, cost and congestion on Motorway roadworks
    March 17, 2014
    A combination of technologies is leading to major congestion and cost reductions during roadworks on the UK’s motorway network. Innovative construction programme scheduling technology and the deployment of moveable barriers has achieved substantial savings of money and time on UK motorway roadworks managed by the Highways Agency (HA). This combination has set the scene for a new generation of road usage analysis tools. The HA’s objective was to reduce the congestion caused by lane closures during roa
    Read More
  • Developments in signal head lens technology
    February 3, 2012
    Heads and tails Leading manufacturers of traffic signal systems discuss developments in signal head technology as well as some of the legacy issues which affect future deployments Transparent model of Dambach's ACTROS.line technology, showing the bus electronics in the signal head Cowls could be superseded by the greater use of lens technology
    Read More
  • Progressing work zone safety systems
    February 1, 2012
    David Crawford investigates progress in a key safety area - work zones. Highway construction zone safety is taken seriously enough in the US to merit a special spring National Work Zone Awareness Week, which in 2010 ran from 19-23 April. Headed by the US Department of Transportation's Federal Highway Administration (FHWA), this aims to reduce an annual toll of work zone deaths - 720 in 2008 (an average of one every 10 hours) with more than 40,000 traffic injuries (an average of one every 13 minutes).
    Read More

Highlighted Content