The precision tire manipulator and measurement system is capable of fully and repeatedly exercising a tire. Like other indoor test systems, it is designed to provide precise control of load, inclination, slip angle,  and braking.  GTTS also includes the ability to dynamically shift the tire laterally, allowing programming of true path curvature – a feature not present on flat belt-type machines. The multi-axis rail system controls carriage roll, pitch, yaw, vertical motion, lateral motion, and speed.

The tire is manipulated to exactly the desired test conditions. Dynamic test profiles can be programmed to conduct realistic simulations, leading to a heightened understanding of vehicle/tire handling characteristics. The measurement system provides precise measurement of tire position and orientation, input loads, and resulting forces and moments.  Fully automatic control allows accurate replication of events.

However, unlike any other indoor test system, GTTS loads the tire against a real, flat, asphalt pavement, and tests can be run continuously on the surface at highway speeds.


Like outdoor proving grounds, GTTS runs tires on a real pavement surface, giving you the confidence of force and moment results based on real-world tire-pavement friction. The GTTS roadway is an 800-meter (half-mile) oval with an asphalt surface typical of those found on public roads.  It contains a tough, granite-based aggregate designed to endure hundreds of thousands of miles of travel with minimal wear or polishing.

Unlike vehicle-based tests, GTTS allows setting and control of a full range of tire test parameters, without the complications of vehicle dynamics and suspension compliances. The rail system provides precise and repeatable positioning of the tire so that the exact location of each event is known. Further, GTTS is an indoor laboratory, which means we control the environment and its effects on the test surface, giving you confidence that our results will be repeatable and reproducible over time.

GTTS bridges the gap between current tire test laboratories and the real world. Because our data are taken on a real pavement you can have confidence that you can take data from GTTS straight to a simulation and get good results. The data corrections that are commonly required to adjust sandpaper surface data to approximate on-road measurements will soon be a thing of the past.


Moving forward, GTTS is designed for modularity and expandability. Test carriages can be rapidly interchanged. So a carriage designed specifically to test truck tires can be swapped with one designed for motorcycle tires, with each of these having optimized capabilities.  Since our carriages are designed and built in-house, we can tailor them to meet specific customer requirements.

GTTS is designed to allow testing in both dry and wet conditions, with water depths up to 5 mm. It uses the latest technology for measurement of tire and surface temperatures, providing additional information about the state of the tested tire.


While GTTS is a leap forward in tire testing technology, there is more to come. GTTS is merely the first phase in Camber Ridge’s new laboratory. Our aim is to bridge the gap between indoor tire testing and the proving ground; helping tire and automotive OEMs reduce their development times and associated costs.

Plans are currently underway for a 275-meter (900-foot) straight line acceleration and braking system, providing wet and dry testing on multiple different pavements, with other capabilities expected to follow. Our 37,000 square meter (400,000 square foot) facility provides ample room for growth to meet market needs. We invite you to come and see what we can do for you.

Your input is crucial to us as we seek to make Camber Ridge a world-class tire characterization facility. Please help us to understand how we can better meet your testing needs.

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