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Driving Over Leaves Can Be as Hazardous as Driving Over Snow: Ford

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Ford Focus Active Slippery Mode driving over leaves

Chances are good that you’re not as concerned about driving in the wet days of autumn as you are about driving in the snowy, icy days of … well, also autumn, but mostly winter. Low temperatures in the northeast threaten to give drivers heading home from Thanksgiving a bit of both in the days ahead. But Ford has determined that, contrary to what you may think, driving over wet leaves can be just as hazardous as driving on snow.


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Ford Focus Active Slippery Mode driving over leaves

Ford engineers tested the effects of driving over leaves by gathering bags and covering the track at the Belgium proving grounds. Using a device that tests friction, they were able to determine just how slick the surfaces were under wheel.

Comparing this information to data gathered in testing done in snowy Scandinavia, it was found that leaves can in fact be every bit as slippery as slow. Leaves were shown to measure between 0.3 and 0.4µ — with µ being the unit by which slipperiness is measured. This was consistent with the levels observed when driving over snow.

“It was fun to conduct the experiment but there was a serious point,” said Eddy Kasteel, development engineer, Ford of Europe. “Most people know to slow down and drive more cautiously for snow. But far fewer of us give the same respect to roads covered in leaves — that can be just as slippery.”


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Ford Focus Active Slippery Mode driving over leaves

Ford, naturally, uses this information to hawk the new Slippery Mode offered with the Ford Focus Active. This new mode will, get this, allow drivers to more confidently traverse over slick roads whether the culprit is snow or leaves. Amazing! Synergy!

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