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

  • Tunnel network to relieve Istanbul's traffic congestion
    August 14, 2012
    A series of road tunnels is taking shape to help relieve Istanbul from crippling road congestion, with an extensive array of safety and management systems operating from a single ITS platform. Nino Sehagic reports. Traffic in Istanbul has historically been described simply as jammed. Severe congestion and chaotic use of available road space are characteristics of a city of more than one and a half million cars. Istanbul’s existing road network could not cope and was in urgent need of expansion, leading the
    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
  • Asking drivers what information they need: radical but effective
    March 19, 2014
    When Texas A&M Transportation Institute was asked to devise a temporary traveller information system for work zones, it started by asking drivers what they need. Robert Brydia explains the thinking, implementation and results. US Interstate 35 (I-35) runs roughly north–south originating in Laredo, Texas and ends 1,500 miles away in Duluth, Minnesota having passed through Oklahoma, Kansas, Missouri and Iowa. Within Texas the I-35 splits into I-35E and I-35W passing through Dallas and Fort Worth respectiv
    Read More
  • Kapsch outlines tolling options to combat traffic congestion
    January 11, 2017
    Michael Maitland from Kapsch TrafficCom looks at how the various forms of tolling can help authorities combat traffic congestion and air quality problems while simultaneously raising revenue.
    Read More

Highlighted Content