How long does it take to fully stop a vehicle

Perception Time

Perception time is how long it takes for your brain to recognise a situation and understands that you need to stop. Usually this takes ¾ second but depends on the driver.

Reaction Time

Reaction time is the time it takes to physically react to a danger by moving your foot from the gas pedal to the brake pedal. Average reaction time is ¾ second.

Braking Time

Braking Time is the time it takes a vehicle to stop from the time the brake is first applied until the vehicle actually stops.

According to the American Association of State Highway & Transportation Officials(AASHO), it takes an average driver 1.64 seconds to perceive and react to a roadside hazard.
Ninety Five percent of people react within 2.5 seconds.

How long does it take to stop ( driving the average family car)

stopping distances state of QLD
Permission to use materials granted by State of Queensland,14 November 2016

Stopping distances on a dry road

The following table shows the distance needed to stop on a dry road in an average family car.

stopping dry road

Stopping distances on a wet road

The following table shows the distance needed to stop on a wet road in an average family car.

stopping wet road

Queensland State Government. 2016. Stopping distances on wet and dry roads. [ONLINE] Available at: https://www.qld.gov.au/transport/safety/road-safety/driving-safely/stopping-distances/graph/index.html. [Accessed 22 June 2017].

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