Snow and Ice Traction

For over 40 years, Smithers has been a leader in winter traction testing. We built our first traction truck in 1980 and helped write both the SAE J1466 test standard and its successor, ASTM F1805. To objectively measure snow and ice test surfaces properties, Smithers' engineers created the CTI penetrometer, which is referenced in both of the test standards.

In 2001, Smithers developed and patented a device to measure tire force and moment properties outdoors. Studies conducted using this vehicle resulted in the publication of SAE paper 2000-01-3431, Truck Force and Moment in Cornering - Braking - Driving on Ice, Snow and Dry Surfaces.

ASTM F1805 / UN ECE R117 Snow Tire Tractionsnow tire traction truck

Smithers' small traction truck is ISO 17025 accredited for ASTM F1805 traction testing. The truck is used to test passenger and light truck (C1/C2) tires for the Rubber Manufacturers Association Severe Snow Use Symbol (3-peak mountain snowflake). It is also used for homologation of European winter tires UNECE R117.

about ASTM F1805 >

UN ECE R117 / ISO 18106 C3 Snow Traction

Our traction truck can also evaluate C3 (truck and bus) tires for snow traction under the ISO 18106 standard. The standards measures snow traction of the candidate tire against a reference tire under a specified load. 

Stopping Distance Test & Snow and Ice Handlingstopping distance testing on ice surface

Smithers' Winter Test Center (SWTC) offers a wide range of facilities for evaluating tires, vehicles, and non-vehicle equipment on snow and ice. Surfaces can be groomed to meet specific standards for company-specific benchmarking.

We have numerous handling courses for tire/vehicle evaluations. Testing can be conducted by our personnel or clients can rent surfaces and perform their own testing.

winter / snow handlingabout our courses and surfaces >

Smithers Winter Test Center

Our world, class winter testing facility offers test surfaces are available for rental and specific surfaces can be created to meet individual clients' needs. Contact our testing experts to discuss your current needs for testing, or to develop a test program for your specific requirements.

about the Smithers Winter Test Center >

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