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

  • Flir launches TrafiOne Smart City Sensor
    June 13, 2016
    Flir Systems is launching the Flir TrafiOne Smart City Sensor, an all-round detection sensor for traffic monitoring and dynamic traffic signal control. Offered in a compact and easy-to-install package, the system uses thermal imaging and Wi-Fi technology to provide traffic engineers with high-resolution data on vehicles, bicycles and pedestrians at intersections and in urban environments. The Flir TrafiOne sensor uses thermal imaging to detect the presence of pedestrians and cyclists who are approaching or
  • SensTraffic stars for Sensys in San Jose
    June 13, 2016
    Today at ITS America 2016 San Jose is highlighting Sensys Networks announces SensTraffic, a traffic data and analytical Smart City software platform for managing corridors and intersections. According to the company, this new service improves upon the highly manual and inefficient methods to collect traffic data and incorporate it into actionable insights. Traffic engineers can generate a wide variety of detailed reports including congestion mapping, travel times, origin/destination, high-resolution perform
  • Columbia goes intermodal to support sustainability
    April 10, 2014
    David Crawford on the ups and downs of a Latin metropolis. Medellín, Colombia’s second city and a recognised leader in sustainable transport thinking, is rapidly extending its substantial existing investment in modern mobility. It is deploying both an enhanced integrated traffic management array and the country’s first intermodal public transportation management system. The supplier of both, under separate €9 million (US$12.3 million) contracts, is Spanish engineering company Indra, a major exporter
  • TransCore’s adaptive signal control technology a featured success story
    June 7, 2013
    TransCore’s SCATS adaptive signal control technology is featured as one of the notable success stories in the recent American Society of Civil Engineer’s (ASCE) 2013 Report Card for America’s Infrastructure. In the road category, the report spotlights the Atlanta smart corridor project that deployed SCATS along an extended stretch of highway with twenty-nine intersections. The speedy return on investment showed savings estimated at US$5.9 million annually due to reduced vehicle travel times and a 34 percent