Categories
Road Safety

As golden autumn sets in, tree leaves quickly transform from vibrant reds and yellows into a wet, brown sludge on our roads. While many drivers view this as just a visual sign of the season, the reality is that wet leaves on asphalt have a coefficient of friction nearly identical to that of black ice.

Why do leaves create such a dramatic slip hazard, and how can you prevent your vehicle from sliding into a ditch?


Physics Under Your Wheels: How the "Teflon" Layer Forms

Fallen leaves contain organic compounds, tannins, and cellulose. When compressed under the weight of a two-ton vehicle combined with rainwater, they release a soapy, oily emulsion. This microscopic layer completely isolates your tire tread from the asphalt surface.

  • Braking distance doubles: At 50 km/h, braking distance on wet leaves increases from a standard 15 meters to as much as 30-35 meters.
  • ABS limitations: Your Anti-lock Braking System (ABS) may engage at the slightest touch of the pedal, but due to a total lack of grip, the car will continue to slide forward.
  • Hidden traps: Beneath a carpet of leaves, you will often find deep potholes, broken branches, or even open storm drains.
Most dangerous zones: Be extra cautious on forested road sections and shaded corners, where the sun and wind cannot dry the leaves for days. Never brake sharply in a curve; speed must be reduced well before entering the turn!

If your vehicle loses traction due to wet leaves and slides off the road, our professional roadside recovery service is here to help, providing expert winching to get your vehicle back on the road safely.