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

  • IRD: from the ground up
    September 16, 2021
    IRD is undertaking a comprehensive review of its road safety and monitoring solutions. A series of initiatives is building on the company’s in-pavement expertise, bringing considerable additional value for the customer to the traditional range of products while complementing these with wholly new technologies
    Read More
  • Colombian highway sees ITS tested to the extreme
    November 13, 2014
    One of the most challenging road construction and ITS projects currently underway is the upgrading of the road from Bogota to Villavicencio. Currently it takes four hours to make the 86km journey between Bogota and Villavicencio using the existing single lane in each direction road which passes through some very challenging terrain. It is the only ground connection between central Colombia and the eastern region which represents 40% of the country’s territory.
    Read More
  • New York pedestrian safety plans launched
    February 27, 2015
    New York Department of Transportation (DOT), in partnership with the New York Police Department (NYPD), has launched Borough Pedestrian Safety Action Plans for each of the five boroughs in the city. The plans are one of 63 Vision Zero initiatives aimed at eliminating all deaths from traffic crashes, regardless of whether on foot, bicycle, or inside a motor vehicle. Despite aggressive pedestrian-oriented street re-engineering between 2007 and 2013, citywide pedestrian fatalities have not declined. In fact, t
    Read More
  • Austria’s answer to temporary traffic problems
    December 22, 2015
    ASFINAG has developed a mobile traffic monitoring and guidance system through a pre-commercial procurement project. Drivers have become accustomed to roadside and gantry-mounted traffic guidance and control systems along the major roads and main motorway sections. But there are occasions when intense monitoring is required on a temporary basis along motorway sections without traffic guidance and control systems and on federal and national roads too. Examples include the monitoring of the traffic flow during
    Read More

Highlighted Content