It is safer for the truck drives at the slower speed because they have more time to react to sudden changes up ahead. Yes? Not sure?  Try the calculator below.

Delivery trucks are designed to perform better at 60 to 65 mph speed range. Manufacturers set their controls to limit speed to 65 mph.  Doing so will enhance the likelihood of fewer breakdowns because of putting less stress on the drive train and fewer accidents becuse of the shorter stopping distance. This is a good example I found from the UK.

stoppingdistance

WHAT SYSCO IS DOING

Education of our delivery associates is another significant strategy for saving energy. We have installed technology on all our trucks that limits their speed to 65 miles per hour. Limiting speed not only reduces fuel use but also improves Delivery Associate safety. Sysco’s delivery associates are trained to drive safely and efficiently, eliminating “jack rabbit” starts and maintaining proper following distances in all driving situations. We use on-board computers to monitor and improve individual vehicle and delivery associate fuel efficiency. When manual transmissions are used, delivery associates are trained in progressive shifting techniques which ensure maximum fuel efficiency. Automatic transmissions are calibrated for maximum fuel economy and engines are set to turn off automatically when unattended.

DO THE MATH

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Good reasons for traveling at the model speed..

  1. Shorter stopping distance
  2. Less distance traveled during reaction time
  3. Fewer Accidents
  4. Equipment ware and tare more tolerable
  5. Less stress to drive safely
  6. Better employee and fellow road traveler well-being

Quote Source:  Sysco Sustainability Report 2013

http://sustainability.sysco.com/operating-sustainably/moving-products/

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