A Canadian Survey of Automobile Tire Pressures, Tire Failures, and Tire Maintenance Practices 810068
The survey described herein was performed by Transport Canada in 1978 to obtain a nationally representative sample of tire pressures, to record driver maintenance habits, and to obtain cursory information on tire failures.
Over 70 percent of the tires examined in the survey were underinflated, and as many as 37 percent were underinflated by 4.0 pounds per square inch (psi) or more. In addition, almost 90 percent of the vehicles examined had at least one tire that was underinflated, and almost 60 percent of the vehicles had at least one tire that was underinflated by 4.0 psi or more.
Results are discussed in terms of driver maintenance practices and driver characteristics.