Siemens introduces new software for “talking” traffic intersections

The city of Abilene, Texas, in the US is using new adaptive traffic control software from Siemens to increase traffic flow along a heavily travelled corridor, where two state highways meet at two intersections about 750 feet apart with elevated railroads passing between them. SEPAC Peer-to-Peer software allows intersection controllers to share information with one another on traffic and pedestrian conditions, allowing the on-street network of controllers to adaptively respond to changing traffic conditions
July 19, 2017 Read time: 2 mins
The city of Abilene, Texas, in the US is using new adaptive traffic control software from 189 Siemens to increase traffic flow along a heavily travelled corridor, where two state highways meet at two intersections about 750 feet apart with elevated railroads passing between them.


SEPAC Peer-to-Peer software allows intersection controllers to share information with one another on traffic and pedestrian conditions, allowing the on-street network of controllers to adaptively respond to changing traffic conditions in real-time.

In the field, a controller can transmit information about a large number of vehicles to a controller at the next traffic signal. This allows extra green time for the group of cars to move through multiple intersections, making traffic more efficient for operators and the travelling public.

According to James Rogge, traffic engineer for Abilene, since the implementation of the technology, the City has seen significant improvements in traffic flow through the once congested area.

The Peer-to-Peer feature gives operators a greater level of insight into traffic conditions and more accuracy in adapting traffic patterns to increase flow and ultimately reduce congestion. The SEPAC software can be installed in existing traffic controllers and requires no additional equipment or IT infrastructure.

Urban Traffic Control

For more information on companies in this article

Related Content

  • Hikvision helps Xi'an traffic flow
    July 30, 2020
    Congestion in ancient Chinese city has been eased with modern technology
    Read More
  • Countering congestion’s cost
    May 6, 2015
    A new report on the economic costs of traffic congestion predicts the problem will worsen significantly in future. Jon Masters reviews the figures and some suggested solutions. New figures on the rising economic and environmental costs of congestion have been published by the US traffic data specialist Inrix and the UK’s Centre for Economics & Business Research (Cebr). Their report finds the problem much bigger than previously thought.
    Read More
  • Iteris wins contracts in Florida, Indianapolis and Kansas
    August 4, 2023
    Signal retiming programmes and ITS architecture updates are among the deals
    Read More
  • South Africa's traffic management and enforcement gears up
    February 1, 2012
    Paul Vorster, CEO of ITS South Africa, takes a look at the national enforcement situation in the year when the country gears up to host the FIFA Soccer World Cup. There are four main drivers pushing the growth of ITS-related law enforcement within South Africa. These are: transport operations associated with hosting the FIFA Soccer World Cup 2010; traffic management linked to increasing congestion; the development of new public transport systems such as BRT; and vehicle and driver-related crime.
    Read More

Highlighted Content