General Motors Proving Grounds

General Motors Proving Grounds

General Motors Proving Grounds

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General Motors operates several proving grounds.

North America

Desert Proving Ground

GM Desert Proving Ground in Mesa, Arizona is a General Motors facility for the testing of HVAC, propulsion, and various automotive systems in a harsh climate. This facility is closed and was replaced by a new facility in Yuma, Arizona.

Milford Proving Ground

The General Motors Milford Proving Ground was the industry's first dedicated automobile testing facility when it opened in 1924. It is located in Milford, Michigan and covers 4,000 acres (16 kmĀ²). 4,800 staff work in its 107 buildings today. The proving ground includes the equivalent of 132 mi (212 km) of roads representative of conditions found on public roadways and other specialty surfaces for vehicle testing. Some roads are open only to drivers who have passed special performance driving training. The saying goes that each mile driven on the grounds is the same as in the real world.

  • The VDTA ("Vehicle Dynamics Test Area"), also known as "Black Lake", is a pad of blacktop for vehicle dynamics testing. Waterfowl have been known to try to land on this "lake" of asphalt. At the ends of the VDTA are two semicircle tracks used for accelerating vehicles up to high speed before entering the pad. A controlled low-friction area made of ceramic tiles is on one side of the pad. Another area is coated with the asphalt sealant Jennite and can be watered down......
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