Total Reaction Time of a Driver Depends Upon

Answer: D. All the above

Total reaction time of a driver depends upon perception time, brake reaction time, and speed of vehicle.

Solution

Total reaction time – Total reaction time is the time taken by the driver to respond in any stopping situation happening on the road. Reaction time is calculated based on the PIEV theory.

As per IRC 2.5 second is taken to design the road characteristics as a reaction time for calculation of stopping sight distance. And  2 seconds is taken in designing of overtaking sight distance.

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