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

Related Content

  • April 6, 2018
    The importance of going with the flow
    Ensuring worker safety and up-to-date driver information is crucial to ensure that roadworks are not a source of danger and delay. Andrew Williams looks at a scheme on the A14 in Cambridgeshire, UK. In recent years, portable workzone ITS solutions have emerged as important tools in the management of major roadworks and system upgrade projects - and are viewed as an increasingly vital means of ensuring any ongoing traffic flow disruption is kept to a minimum. The technology forms a central component of an
    Read More
  • November 1, 2016
    Connected offers free I2V connectivity
    A new system could reduce the cost of implementing I2V communications across a city to less than that for a single intersection, as Colin Sowman hears. It may seem too good to be true but US company Connected Signals is offering city authorities the equipment to provide infrastructure to vehicle (I2V) communications for free. The system enables drivers to receive information about the timing of signals they are approaching via the EnLighten smartphone app (or connected in-vehicle display).
    Read More
  • April 2, 2014
    Big data and GPS combine to cut emergency response times
    David Crawford looks at technologies for better emergency medical service delivery. Emergency medical services (EMS) play key roles in transporting, or bringing treatment to, patients who become ill through medical emergencies or are injured in road traffic accidents (RTAs). But awareness has been rising steadily, in the US and elsewhere, of the extent to which EMS can generate their own emergencies. The most common cause is vehicles causing or becoming involved in RTAs, as a result of driving fast under pr
    Read More
  • December 2, 2021
    Go wireless with Traffic Group
    Wireless temporary traffic light system - Metro Haul Route Crossing System - launched
    Read More

Highlighted Content