Skip to main content

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.

For more information on companies in this article

Related Content

  • US incident management needs national standardisation
    January 26, 2012
    I-95 Corridor Coalition's Tom Martin discusses the state of the art in incident management and what visitors to this year's ITS World Congress can expect of the first ever Emergency Responder-Incident Management Day. Developments in incident management are driven in the main by need. A bald statement, and one which holds no surprises, it nevertheless quantifies the evolutionary process within the I-95 Corridor Coalition over the last decade and more. Spread over 16 states from Maine to Florida, the Coalitio
  • Traffic management: risky business
    June 15, 2023
    Adding a real-time accident risk layer to the profile of a road network ticks all the crucial boxes: it saves time, fuel, money and, ultimately, lives. Harriet King of Valerann explains the brain power of Lanternn by Valerann’s Core Fusion Engine...
  • ITS Australia Awards 2025 finalists announced
    November 13, 2024

    ITS Australia has announced 32 finalists for the 15th Annual ITS Australia Awards, with winners announced at a ceremony on 13 February 2025 in Perth, Western Australia.

  • Teledyne Flir brings Middle East into vision
    July 10, 2023
    As urban sprawl creeps across the Middle East and Africa, congested roads aren’t far behind. Hesham Enan of Teledyne Flir explains to Adam Hill how traffic technology is helping authorities to cope