Problem 1 (Concepts of safe distances): In lecture 7 and 8, we discussed five (5) types...

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Civil Engineering

Problem 1 (Concepts of safe distances): In lecture 7 and 8, wediscussed five (5) types of safe distances, such as brakingdistance, deceleration distance, stopping sight distance, decisionsight distance, and passing sight distance. Explain what they arein terms of definition, situation of concern, and possibleapplications for analysis, design and management (at least oneexample for each

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Types of safe distance 1 Braking Distance Braking distance is calculated as the distance the vehicle travels after the brakes being fully applied It is affected by the vehicular speed friction between the tires and the road and the air drag As far as highway safety is concerned braking distance is of prime importance The situation of concern is when the braking distance is more which can be due to the speed types of brakes friction type of tires etc Braking distance is used for the calculation of stopping sight distance It is very difficult to achieve reliable calculations of the braking distance as road conditions and the tires grip can vary greatly For example the braking distance may be 10 times longer when there is ice on the road 2 Deceleration Distance The additional distance a vehicle travels from the See Answer

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