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

  • Additional functionality gives loops a continued lease of life
    March 20, 2014
    Two decades after the death of the inductive loops was predicted, Matt Zinn, technical services manager at Eberle Design says the technology still offers advantages. More than 20 years ago the emergence of video detection systems led many to foretell the end of inductive loops. In the intervening years advocates of radar, infrared and wireless detection technologies have also claimed that loops were on their way out. But in fact, by all calculations, the use of loops has actually increased and although
  • Iteris expands video detection product offering
    January 15, 2013
    Realising that rising fuel costs lead to more commuters taking to the streets on bicycles, creating an increased need for accurate bicycle detection at intersections, US traffic management information solutions provider Iteris has launched SmartCycle, a new product addition to its Vantage video detection product suite. According to Iteris, an intersection configured with SmartCycle can effectively differentiate between bicycles and other vehicles, enabling more efficient signalised intersections and maximis
  • Applied IoT tech to improve Cary traffic 
    August 9, 2021
    TravelSafely app connects users with infrastructure
  • US Cities push for smarter poles
    June 25, 2018
    US Cities The need to connect existing infrastructure has led various US transit authorities into imaginative alleyways: David Crawford examines some new roles for street furniture. US cities are vying with each other in developing schemes to create a new generation of connected places. Their strategies include taking advantage of their streetlight poles’ height and ubiquity to give them new roles in supporting intelligent nodes. They are now being equipped for collecting real-time data on key transport