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

  • Nairobi looks to ITS to ease travel problems
    March 6, 2018
    Shem Oirere looks at plans to tackle chronic congestion in the Kenyan capital - where commuters can typically expect it to take up to two hours to complete a 15km journey. Traffic jams in the Kenyan capital, Nairobi, are estimated to cost the country $360 million a year in terms of lost man-hours, fuel and pollution. According to Wilfred Oginga, an engineer with the Kenya Urban Roads Authority (KURA), the congestion has been exacerbated by poor regulation and enforcement of traffic rules, absence of
    Read More
  • Nairobi looks to ITS to ease travel problems
    March 6, 2018
    Shem Oirere looks at plans to tackle chronic congestion in the Kenyan capital - where commuters can typically expect it to take up to two hours to complete a 15km journey. Traffic jams in the Kenyan capital, Nairobi, are estimated to cost the country $360 million a year in terms of lost man-hours, fuel and pollution. According to Wilfred Oginga, an engineer with the Kenya Urban Roads Authority (KURA), the congestion has been exacerbated by poor regulation and enforcement of traffic rules, absence of
    Read More
  • Nairobi looks to ITS to ease travel problems
    March 6, 2018
    Shem Oirere looks at plans to tackle chronic congestion in the Kenyan capital - where commuters can typically expect it to take up to two hours to complete a 15km journey. Traffic jams in the Kenyan capital, Nairobi, are estimated to cost the country $360 million a year in terms of lost man-hours, fuel and pollution. According to Wilfred Oginga, an engineer with the Kenya Urban Roads Authority (KURA), the congestion has been exacerbated by poor regulation and enforcement of traffic rules, absence of
    Read More
  • Foundation funds research for informed campaigning
    April 29, 2015
    ITS International talks to Professor Stephen Glaister, director of the transport research and lobbying organisation, the RAC Foundation. It is through the eyes of an economist that Professor Stephen Glaister, emeritus professor of transport and infrastructure at Imperial College London and director of the RAC Foundation, views current and future transport problems. Having spent 30 years at the London School of Economics and another 10 at Imperial, the move to the RAC Foundation was a radical departure from
    Read More

Highlighted Content