Loose chippings can reduce traction and cause loss of control.

This could be solved by adding more wheels, but unless they also were driven, the effect was to reduce traction on the powered wheels.

Diesel spills severely reduce tire grip and traction, and have been implicated in many accidents.

This design reduces traction on the retina via the vitreous material.

It tends to put more weight on the outside tires and less weigh on the inside tires, reducing traction.

Under extreme braking (like for instance in a panic stop), the already front heavy layout further reduces traction to the rear wheels.

However, in low-traction conditions on a soft surface, the same mechanism could allow one wheel to slip, further reducing traction.

Janson knew that the sand itself reduced traction like an oil slick, and he reduced speed slightly.

Reduce downforce, reduce traction with narrower tires, and put horsepower at the top of the priorty list.

Wheels can also lose traction when surface conditions reduce available traction such as on snow and ice.