Single Vehicle Wet Road Loss of Control; 
Effects of Tire Tread Depth and Placement

William Blythe; Terry D. Day

doi:10.4271/2002-01-0553

2002-03-04

Single Vehicle Wet Road Loss of Control; Effects of Tire Tread Depth and Placement 2002-01-0553

When an automobile is driven on wet roads, its tires must remove water from between the tread and road surfaces. It is well known that the ability of a tire to remove water depends heavily on tread depth, water depth and speed, as well as other factors, such as tire load, air pressure and tread design. It is less well known that tire tread depth combined with placement can have an adverse effect on vehicle handling on wet roads.

This paper investigates passenger car handling on wet roads. Flat bed tire testing, three-dimensional computer simulation and skid pad experimental testing are used to determine how handling is affected by tire tread depth and front/rear position of low-tread-depth tires on the vehicle.

Some skid pad test results are given, along with corresponding simulations. A literature review also is presented.

Significant changes in tire-road longitudinal and lateral friction are shown to occur as speed, tread depth and water depth vary, even before hydroplaning occurs.

Three-dimensional computer simulation confirms and illustrates the effect of worn-tire placement on vehicle handling characteristics during wet road maneuvers.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Digital $37.00 Print $37.00

Preview Document

We also recommend:

Standards

SAE Mobilus®

Publications

News

Events

Professional Development

A World in Motion (PreK-12)

Participate with SAE

SAE Membership

Donate

Single Vehicle Wet Road Loss of Control; Effects of Tire Tread Depth and Placement 2002-01-0553

SAE MOBILUS