Which factor is NOT considered a contributor to vehicular skidding?

A factor that is not considered a contributor to vehicular skidding is proper tire grip. Proper tire grip refers to the tires having adequate friction with the road surface, which is essential for maintaining control of the vehicle. When tires are in good condition and adequately inflated, they provide a proper grip that helps prevent skidding, especially during adverse conditions such as wet or slippery surfaces.

In contrast, the other factors, such as wet road conditions, locked wheels, and under-inflated tires, are known to increase the likelihood of skidding. Wet roads reduce friction, making it harder for tires to maintain grip. Locked wheels, often occurring during sudden braking, can cause the vehicle to slide rather than stop effectively. Additionally, under-inflated tires can lead to poor traction, further contributing to the risk of skidding. Understanding these dynamics is key to safe vehicle operation and helps in anticipating and preventing skidding incidents.