Drive and Stay Alive

Drive and Stay Alive
An article by Eddie Wren ( Amended, August 2004 )

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With the advent of better brakes, vehicle stopping distances have reduced slightly over the years but it has to be remembered that, no topic how good the brakes and tires, the laws of physics don ’ deoxythymidine monophosphate change. The most crucial point for any driver to remember is that if you double your rush — say from 30mph to 60mph — your braking distance does not become doubly as long, it becomes four times as far. Because there are differences between versatile vehicles, the follow tables are for steering entirely. The biggest factor in stopping distances is the rush at which a driver reacts to seeing the hazard in motion. Under ordinary drive conditions, very few drivers indeed can get onto the brakes within half a second, and two-thirds of a second gear to a fully second is more typical. 2 Most frighteningly, australian research has shown that the very people we expect to have the fastest reactions — young drivers — are peculiarly prone to effectively ‘ freeze up ’ with fear, at the sight of an unexpected hazard ahead, and their reaction fourth dimension can therefore exceed two seconds. last, don ’ triiodothyronine forget that when you read the 60-0mph figures in literature for new cars, the car manufacturer is giving you only the brake distance, not the overall stop distance. Stopping Distances for Dry Pavement/Road 1SpeedThinking distance 2Braking distanceOverall Stopping distance Comparisons20 mph20 feet 20 feet  40 feet30 mph30 feet  45 feet  75 feetFull  length of  tractor/semi-trailer or articulated wagon40 mph40 feet  80 feet120 feet50 mph50 feet125 feet175 feet60 mph60 feet180 feet240 feet70 mph70 feet245 feet315 feet(USA = “Touchdown !”)80 mph80 feet320 feet400 feetAbout six semi-trailer or articulated wagon lengths 3

( Copyright ©, Eddie Wren, and Drive and Stay Alive, Inc., 2003 onwards ) Stopping Distances for Wet Pavement/Road 1SpeedThinking outdistance 2Possible Braking distanceOverall Stopping Distance Can Be: Comparisons20 mph20 feet 40 feet  60 feet30 mph30 feet  90 feet120 feet40 mph40 feet160 feet200 feet50 mph50 feet250 feet300 feet(USA = Touchdown !)60 mph60 feet360 feet420 feet70 mph70 feet490 feet560 feet80 mph80 feet640 feet720 feetAlmost two and a half American Football fields 3 ( Copyright ©, Eddie Wren, and Drive and Stay Alive, Inc., 2003 onwards ) Remember – 1 : When the road is icy or covered with compress snow, or diesel fuel has been spilled ( which is a particular risk near certain flatulence stations ) the ‘ brake distance ’ for your vehicle can be ampere a lot as ten times further than for dry roads/pavement. Remember – 2 : ……………Any fool can drive fast enough to be dangerous ! Notes

1 For non-US readers, ‘ sidewalk ’ is the american english word for the road surface. We are not referring to the british think of of the password, which is the like as the American ‘ sidewalk ’. 2 The ‘ think distances ’ shown permit for two-thirds of a second reaction clock time. This varies from one driver to another and for individuals who are ill, tired or just not concentrating, it can be much longer. 3 The 80mph examples are not here to condone breaking any travel rapidly limits, preferably to illustrate the supernumerary dangers faced by, and caused by, those people who exceed the common highway limits .

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Category : Car Brakes