GTSS: Building the Future of Traffic Signals from First Principles
Stretch your Vision. See what can be, not just what is. -David J Schwartz
General Traffic Signal Specification
Open standard, simple format, empowering traffic engineers
Why Choose GTSS?
Open to All - No Exceptions.
GTSS is a free, open specification that unlocks new possibilities in traffic signal data sharing and innovation.
Configure Once, Deploy Anywhere
Set up your signal phasing and detector configuration once, and use it across any GTSS-compatible tool or vendor—no duplication or extra work.
Build on the Vibe
A shared standard that fuels rapid development, enabling anyone to create, test and deploy new tools and services for traffic signals.
Reduce Costs
Eliminate custom integration or vendor specific configuration.
Break Vendor Lock-In
Free your data, cut configuration costs, and choose solutions that truly serve your community.
Future Proof
A shared standard that makes it easy to evolve, extend, and adopt new capabilities over time.
Latest Updates
A History of GTFS: How a Open Standard Transformed Transit
The General Transit Feed Specification (GTFS) is one of the most influential open data standards in the world of public...
Introducing a General Traffic Signal Specification (GTSS)
Configuring traffic signals shouldn’t feel like reinventing the wheel every time. Information like phasing, detector channels, and the physical location...