Central Tire Inflation: Demonstration Tests in the South

Tests of prototype Central Tire Inflation (CTI) systems were conducted to quantify CTI performance, road wear, and truck vibration. The CTI systems were tested in both experimental and operational settings. Changes in the road surface that occurred during the tests could not be statistically attributed to reduced tire pressure. Vibration at the seat base, however, was significantly affected by tire pressure. In the operational tests, reduced tire pressure was associated with higher travel speeds. The implications of these findings for log transportation are discussed.