comments on: what is a safe following distance? (3 second rule) - 2022年世界杯预选赛赛程

by: bob craven

wed, 05 feb 2020 17:37:16 +0000

in the uk where i believe that the 2 second rule started from it includes [1] the thinking distance which is from the time seen something ahead to recognising that one should brake and applying the brake and then part [2] is adding on the actual braking distance that gives a total stopping distance. it does not mean that one can follow another car and if it slows and shows brakes and stops then we can also slow and stop tho that would be a good thing. to give no less than 2 seconds to following any vehicle on the road also has the advantage of you being able to see more of the road conditions ahead and also of others being able to see you more because you are not obscured by closer traffic. so that’s a win win situation allround. unfortunately some drivers don’t give enough following distance, sometimes less than 1 second and that’s why rear end collision happen frequently on our roads and smidsys at junctions where approaching vehicles are masked by others.

its designed for the circumstances for normal traffic following but primarily in the event the vehicle in front comes to an immediate and unexpected halt with or without the showing of brakes ie a collision occurs . under those circumstances one needs to be 2 seconds or rather and more correctly more than the 2 seconds in order to be able to stop without becoming involved in a collision ones self. at higher speeds its recommended that one gives a 3 second gap to account for the additional speed and to multiply any distance by the factor or 2 when the road surface is damp or wet [ not only when its actually raining].

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by: anonymous

mon, 30 dec 2019 22:22:26 +0000

i drive a large tractor-trailer. i follow 4 to 8 seconds for safety. every time 2022卡塔尔世界杯预选赛时间 merges in front of me (happens all day) i can count less than 1 second between (causing me to break). if you aren’t aware that you are merging in front of an 80 thousand pound vehicle moving forward at speed…you’ll get your wake up call someday. happy travels.

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by: scott

tue, 26 feb 2019 00:40:11 +0000

thanks for the informative article. in pennsylvania, it used to be the 3 second rule when i started driving in the mid 1980’s. it has since become the 4 second rule. as triple ase master auto/truck technician, there is often 1 factor that many do not take into consideration. as i keep old cars running and drive them to the grave yard, i have a mixed fleet of old and new cars. antilock brakes! older cars don’t have it and i have a chevrolet minivan that has a switch to disable it. in prefect conditions, 2022卡塔尔世界杯预选赛时间 without abs can stop much sooner than a new car. in perfect conditions, with great brakes, suspension, powertrain, and great tires locking the tires will result in a much shorter stopping distance. our newest car, a prius prime, has the benefit of radars and cameras that help us drive more safe. worse car to drive? the old 66 and such mustangs with drum brakes. one had better have strong legs and joints.

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