Skip to main content

GPS-based virtual detection zones improve bus travel times

San Antonio, Texas’ new Via Primo will be kept on schedule with minimal impact on individual traffic flow with the implementation of a GPS-based bus rapid transit system that allows the bus to automatically request a green light when it is behind schedule and approaching a busy intersection.
July 5, 2013 Read time: 2 mins
San Antonio, Texas’ new Via Primo will be kept on schedule with minimal impact on individual traffic flow with the implementation of a GPS-based bus rapid transit system that allows the bus to automatically request a green light when it is behind schedule and approaching a busy intersection.

189 Siemens Road and City Mobility business has worked with 629 Trapeze Group to create the new transit signal priority (TSP) solution which uses a ‘virtual’ GPS-based detection zone for transit vehicle traffic management without requiring physical detector equipment at the intersection.

The intelligent transportation system operates through Siemens NextConnect software and Trapeze Group’s GPS system. When a bus is in a virtual detection zone, the transit system sends a signal priority request to the Siemens i2 traffic management system. The request is relayed to the intersection traffic controller which requests the traffic system to provide a green light for the approaching transit vehicle

Identifying the need for a new bus rapid transit (BRT) system, San Antonio’s Via Metropolitan Transit wanted to avoid the construction delays and increased costs associated with adding new hardware on the street. The ‘virtual’ detection zones are installed digitally on city traffic servers and are easily adjusted in response to changes in traffic flow due to special events or construction. The flexibility also means VIA and the city can add BRT lines around the region by simply creating a new route and configuring the new detection zones accordingly.

“This solution allows passengers to get to their destination on time, and it will ultimately encourage more usage of the bus system as reliability improves, reducing congestion and greenhouse emissions as people switch from car to bus travel,” said Frank LoPresti, vice president of Siemens Road and City Mobility business.

“Via has been a valued Trapeze customer for more than fifteen years, and they are an award-winning agency for good reason. Their systems and processes are state of the art, and their customer-centric focus is to be applauded,” stated John Hines, president of Trapeze Group.

For more information on companies in this article

Related Content

  • Google maps the future of traffic and travel information?
    March 16, 2012
    Will the relentless growth of Google lead to it becoming the ultimate provider of travel information services? Huw Williams investigates Google’s strategy and David Crawford discovers what two principal rivals are doing to keep pace. In the first weeks of 2012 one company staked two divergent claims on the future of transport. One is the science fiction of only a decade ago, turned into reality: the driverless car. The other seems more prosaic, yet in its own way is just as significant a marker of the futur
  • Developing new detection and monitoring technologies
    November 21, 2012
    Established detection and monitoring technologies continue to evolve, but is it time to challenge their supremacy and take a serious look at less conventional ITS? Andy Graham considers the options with Jason Barnes. For ITS system providers, the most potentially lucrative markets over the next few years are going to be the BRIC (Brazil Russia India and China) group of countries, all of which are building many miles of new roads, applying tolling to existing ones (8,000km in China alone) and implementing w
  • Developing integrated transport networks
    September 20, 2012
    A major initiative in managing numerous transport networks as a single system has moved into a significant phase with design of sophisticated new ITS systems. Jon Masters reports. Detailed design work is under way on two pilot projects pursuing a common principle – that transportation can be made more efficient or effective if the various networks and modes of travel are managed as a whole system. This is the central tenet of the US Department of Transportation’s (USDOT) Integrated Corridor Management (ICM)
  • GridMatrix goes back to the future in New York City
    September 25, 2023
    Legacy traffic management infrastructure doesn’t have to be a marker of the past: software upgrades can bring it into the present in a cost-effective and timely way, says Gordon Feller