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Different Types of Skid Marks a Car Can Make

by Matt Vietri

A skid mark is defined as a tire mark on asphalt surface produced by a tire that is not rotating. Skid marks are generally faded at the beginning and get heavier as they continue. The three main tire skid marks are acceleration scuffs, deceleration marks and yaw marks.

Yaw Marks

Yaw marks are what's left by a tire that is still rolling but is simultaneously sliding laterally. They are always curved and initiated by a steering input. If you're driving too fast into a corner you'll create a set of yaw marks. Yaw marks have distinct striations, stripes or streaks induced as the sidewall is dragged over the road. These marks are aligned in the direction of the spin, usually parallel to the car's axle.

Acceleration Scuffs

If the drive tires are spinning faster than the vehicle speed, heavy burn marks will be left on the pavement at the inital point of acceleraton and the tire rib defintion may be visible in the center of the imprint.

Deceleration Marks

Decleration marks occur when tires are spinning slower than the vehicle because of braking or downshifting. When a vehicle brakes a greater portion of the vehicles weight is transmitted to the outer edges of the front tires. This causes parallel shoulder skid marks to be pronounced. Tire wear and inflation also play a factor in how pronounced the mark of the tire will be on the asphalt.

Imprint Marks

Imprint marks aren't exactly skid marks because they aren't caused when a tire skids on the asphalt--rather they are tire tracks. These occur when a car veers off the road or drives though water or mud and then the tires touch the road, leaving an imprint of the tire on the asphalt.

About the Author

Matt Vietri has been writing professionally since 2005. He has had his work published in the "Bucks County Courier Times," "Metronome Magazine," "Major League Baseball," the "Seaford Star." After attending Temple University film school, Vietri studied English at the University of Delaware.

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