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

  • ITS solutions to keep truck traffic moving
    June 8, 2015
    David Crawford reviews freight management initiatives. Managing truck traffic to minimise its environmental impacts, without adversely impacting on its critical economic role, continues to drive ITS-based solutions in both urban and interurban contexts.
    Read More
  • Centralised traffic control, managing changing traffic demands
    January 23, 2012
    Paul van Koningsbruggen and Dave Marples of Technolution BV describe, using a national example from the Netherlands, how smart add-ons to traffic control centres combine to increase cross-centre capabilities and cost-efficiency. Increasingly, traffic management is becoming the natural partner of the civil engineer, improving flows over existing infrastructure to deliver an alternative to laying more blacktop. As in any emerging market, the first steps towards mature traffic management have not necessarily r
    Read More
  • Connected citizens boosts Boston’s traffic management
    March 30, 2017
    Data-derived traffic management is starting to show benefits as David Crawford discovers. The city of Boston has been facing growing congestion problems in its Seaport regeneration district, with the rate of commercial and residential growth threatening to overtake the capacity of the road network to respond.
    Read More
  • Transit signal priority improves travel times in Memphis
    August 13, 2014
    The installation of Global Traffic Technologies’ (GTT) Opticom GPS transit signal priority (TSP) along the two busiest transit corridors in Memphis is helping many of the tens of thousands of the city’s transit users reach their destination in less time.
    Read More

Highlighted Content