Search results
Results From The WOW.Com Content Network
Braking distance refers to the distance a vehicle will travel from the point when its brakes are fully applied to when it comes to a complete stop. It is primarily affected by the original speed of the vehicle and the coefficient of friction between the tires and the road surface, [Note 1] and negligibly by the tires' rolling resistance and vehicle's air drag.
d MT = braking distance, m (ft) V = design speed, km/h (mph) a = deceleration rate, m/s 2 (ft/s 2) Actual braking distances are affected by the vehicle type and condition, the incline of the road, the available traction, and numerous other factors. A deceleration rate of 3.4 m/s 2 (11.2 ft/s 2) is used to determine stopping sight distance. [6]
Stopping sight distance is the distance traveled during perception-reaction time (while the vehicle driver perceives a situation requiring a stop, realizes that stopping is necessary, and applies the brake), and maneuver time (while the driver decelerates and comes to a stop). Actual stopping distances are also affected by road conditions, the ...
This clear distance corresponds to a maximum safe speed of 52 mph and 65-81 mph respectively on dry pavement with good tires, [107] [116] which is attenuated further by convex and lateral road curvature; safe speed is always dynamic.
The maximum speed of a Bugatti Chiron (the fastest production road car) is 305 mph. The Mitubishi Mirage (the cheapest car available in the US in 2023) tops out at 105 mph.
Meet Dean Karzanes, a man who can run 350 miles without stopping. The 53-year-old distance runner has no trouble running a marathon. In fact, he can do them back-to-back while hardly breaking a sweat.
Arrester bed: a gravel-filled ramp adjacent to the road that uses rolling resistance to stop the vehicle. [1] The required length of the bed depends on the mass and speed of the vehicle, the grade of the arrester bed, and the rolling resistance provided by the gravel. [ 2 ]
As his vehicle reached a speed of 113 mph, Minnesota State Trooper Zach Gruver managed to get in front of Dutcher's vehicle by moving at 130 mph and parked his squad car in its path.