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

  • VW scandal prompts emissions testing debate
    December 1, 2015
    In the wake of the VW scandal John Kendall looks at emissions testing on both sides of the Atlantic. Since the VW emissions story broke in September, emissions testing has come under greater scrutiny, and none more so than in Europe, where critics have long been highlighting the weaknesses of the testing system. Ironically, changes to the emissions testing process were already under review but the story has pushed it up the agenda.
    Read More
  • ITS Australia Awards: finalists revealed
    November 29, 2022
    Cisco, Moovit and Q-Free are among the companies up for 13th ITS Australia Annual Awards
    Read More
  • Monitoring during construction reveals benefits of new expressway
    June 6, 2014
    David Crawford reports on how the authorities in New Zealand are using Bluetooth technology to monitor the effects of a new expressway as it is being constructed. New Zealand Highway Agency (NZHA) is using Bluetooth-based vehicle detection to assess the impact of its biggest road building project as the various sections are completed. The large-scale deployment of a Bluetooth-based vehicle detection system is making substantial contributions to traffic data needs in progressing the new Waikato Expressway, a
    Read More
  • US study finds cameras reduce red light running
    January 28, 2013
    The latest research by the US Insurance Institute for Highway Safety (IIHS) found that red light running rates declined at Arlington, Virginia, intersections equipped with cameras. The decreases were particularly large for the most dangerous violations, those happening 1.5 seconds or longer after the light turned red. "This study provides fresh evidence that automated enforcement can get drivers to modify their behaviour," says Anne McCartt, senior vice president for research at IIHS and the study's lead au
    Read More

Highlighted Content