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

  • Rapid growth makes Texas an incubator for tolling innovation
    September 8, 2014
    As the IBTTA’s annual meeting and exhibition heads for Austin, Mitchell Beer, president of Smarter Shift, considers the role of Texas in the development of tolling strategies and technology. The State of Texas has always prided itself on being ‘larger than life’. From the sprawling geography of the state itself with its wide open skies, to its entrepreneurial ‘get-it-done’ attitude, Texas exudes an impatient restlessness that pushes businesses and public agencies to deliver faster, better results. More ofte
    Read More
  • UTMC ANPR communications protocol aids traffic management
    January 30, 2012
    Telematics Technology's Peter Billington describes the effort to give English local authorities and police forces a UTMC ANPR open communication protocol. The story of the impact of communication protocols on the development and utilisation of intelligent equipment is a familiar one both inside and outside the ITS industry. At the outset, a company pioneering its latest technology invariably develops a proprietary protocol. This enables the company's products to talk to the customer systems which need to a
    Read More
  • Suppliers reshape to provide tolling and traffic management expertise
    August 2, 2013
    Jason Barnes examines the trend towards single source supply of complete tolling and traffic management solutions with some senior tolling industry figures. Only a few years back, the major tolling system suppliers were aggressively positioning themselves as one-stop shops for tolling solutions and operations. No sooner has that little flurry of innovation settled than another trend has emerged – tolling companies wanting to become major ITS suppliers as well. Various tolling company seniors have in recent
    Read More
  • Auckland reduces airport journey times
    April 16, 2018
    Getting from the centre of Auckland to the city’s airport used to be fraught with unwanted stress for passengers – but a new system combining radar, Bluetooth and Wi-Fi is smoothing things over. Andrew Stone investigates. Struggling to cope with steady growth in passenger numbers and the costly traffic congestion which that can entail, New Zealand’s Auckland International Airport has deployed an innovative system that is smoothing traffic and passenger flows. The same system is also offering new, data-led
    Read More

Highlighted Content