How much time (in seconds) does a person traveling on a grade of -1% at a speed of 69 mph haveto hit the brakes to stop before hitting a monster seen in the middle of the road 970 feet away?Assume the practical stopping distance equation and the AASHTO standards for unspecifiedvariables apply.

Using equation:SSD=vt+v22gag±nv=69mph=101.2 ft/sSSD=970fta=11fts2AASTHOg=32.2fts2n=-1%

Answered: OW tim (In econd hit the brakes to stop…

Engineering

Civil Engineering

OW tim (In econd hit the brakes to stop b- ssume the practical stop

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter10: Capacity And Level Of Service At Signalized Intersections

Section: Chapter Questions

Problem 3P

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Highway Safety

Proper highway safety refers to the methods or rules that prevent highway travelers from being killed or severely injured. Proper highway safety measures help to protect motorists, cyclists, pedestrians, passengers on public transport, and so on.

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How much time (in seconds) does a person traveling on a grade of -1% at a speed of 69 mph have
to hit the brakes to stop before hitting a monster seen in the middle of the road 970 feet away?
Assume the practical stopping distance equation and the AASHTO standards for unspecified
variables apply.

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