TikTok user @daily_dose_of_stem posts the below video that unveils what happens next as the driver of the first truck runs to flee the impending danger.


TikTok user @toosquare comments with a little dark humor, “There was still room for one more.” Runaway ramps began to appear on major highways in the mid-1960s in mountainous regions, mostly in the western states.  Car and Driver offers a few details about runaway truck ramps that are of general interest.

Also called “truck escape ramps”—or in Britain, “escape bays”—they rely on the additional friction created by gravel or sand and, usually, the gravitational slow-down effect of an incline to stop runaway vehicles. Aircraft-carrier-type arresting cables with netting have been used in lieu of ramps, but they require more maintenance.By 1990, there were reportedly 170 runaway ramps in 27 states. Current data is scarce, but a 1981 NHTSA study notes there had been 2450 runaway-truck incidents that year, with 2150 of those involving the use of ramps.States determine where ramps are constructed, based on such parameters as: runaway-truck accident rate at a candidate grade; length and percent of slope; traffic volume and percent of heavy-truck traffic; and conditions at the grade’s end, e.g., a sharp bend, a building, etc.

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