Machines | Zero Fatalities: Truck Smart Stopping Demonstration
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Truck Smart is a partner of Zero Fatalities. In this video you will see a semi truck and a dump truck try to come to a complete stop in comparison with a passenger vehicle. The first demonstration is with an empty Semi-truck traveling at 35 mph. Normally these big rigs will be traveling at 65 mph and will be towing 80,000 pounds. The second is with a loaded dump truck traveling at only 25 mph. This will put it in to perspective and demonstrate that you really should leave these big rigs a good amount of distance to be able to stop. For more information visit: http://www.udot.utah.gov/trucksmart/index.php
Comments
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AND HOW ICE THE RAIDS AND THE WEATHER JUST TO NOW OK THANK YOU FOR SHOWING THE WOLRD SAME DONT CARE HOW HARD PEOPLE ARE I SEEN ON FREE WAY CUTTING OFF THE TRUCKER I HOW EVERY ONE SEE THIS YOU NEED TO SHOW THIS A DRIVERS SCHOOL FOR TEEN WHEN THERE JUST WOW RIGHT
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Stupid test..truck doesn't even have it's tag axle down.
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Wow, European trucks have much better brakes. youtube.com/watch?v=ridS396W2BY
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Most semi's don't have any chance at locking up tires on a loaded axle. Fully loaded they can use somewhere around 50% of the available traction for braking and this is before the brakes start to fade... These days their best stopping is when unloaded due to ABS compensating for lightly loaded axles. To be fair there are trucks with stronger brakes than this - but there is no way to tell if a truck or trailer has top of the line modern disk brakes or basic drums that "just" meet spec.
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If the semi was loaded and had brakes to couple with the weight, it would have stopped almost like being empty, as weight increases traction.
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Wow. Thats interesting. I can only imagine if that semi was fully loaded and the speed were 65-70 mph. I am pretty good around trucks and try to give them plenty of space on all sides but this confirms how I drive them around them.
Often when the light turns yellow in many states there are only 3 seconds for the trucker to stop before the light turns red. At 30 MPH a fully loaded tractor trailer takes approx 185 feet to stop. Add snow or rain to the mix and the distance is much longer. 185 feet is a long way from the stop line so this 3 second gap that many places have should be much longer. Truckers are getting nailed by red light cameras due to the exploitation of their longer stopping distances.