Supporting Cyclists and Transit Riders with Signal Priority

Presenting SiBike

SiBike: a Smartphone-Based Bike Detection

The SiBike app can be used to provide bicycle detection or give priority to the cyclists when city traffic controllers and programmed to interface with the downloadable SiBike app.

SiBike provides GPS-based bike detection through a smartphone app.  SiBike is a free smart phone app downloadable on IOS and Android phones that users can download from the App and Play stores. Once set up, SiBike runs in the background and automatically senses when a person starts and ends a cycling trip.  When a user is biking, the SiBike app knows not only where the bike rider is, but also what intersections have been configured to accept a bike detection message.  In this way, the app can be intelligent about how it uses smart phone host app resources, including the battery and cellular data usage.  When the app detects that it is near an intersection that can accept a bike detection message, the app communicates to the SiBike cloud server.  Messages are then collected and forwarded to a central server where detector calls are then placed with the appropriate intersection controllers.  

Presenting TSP Connect

TSP Connect: A Center-to-Center Based Transit Priority Solution

The Siemens Mobility TSP Connect solution uses a link between a Transit Management system and a Traffic Management system to implement Transit Priority without requiring additional hardware on the transit vehicles or in traffic cabinets.   

 

The on-board units on the transit vehicles that are part of the existing Transit Management system provide vehicle location to the transit system. The transit system knows which buses are on schedule and which are not; and transmits location information for the late buses to the TSP Connect server, which is part of the traffic management system. The TSP Connect server compares the location information to a list of “virtual detection zones” around intersections. 

 

When a bus requesting priority enters a virtual detection zone, the TSP Connect sends a priority request message to the appropriate intersection controller. The intersection controller software then determines if it can grant priority to the transit vehicle without violating coordination. If it can, it implements temporary timing changes to provide the transit vehicle with a green signal when it arrives at the intersection. This operation enables transit vehicles to stay on schedule without severely impacting the overall traffic flow. 

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