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Explanation of Terms
Peak Deceleration (Front/Rear)
This is the maximum recorded G Force (m/s2)
detected during the test, in the front to rear direction.
It corresponds to the Peak Brake Efficiency and is
expressed as a percentage of one G.
This is the figure to be used in the UK for
statutory MOT Testing.
Average Deceleration (Front/Rear)
This refers to the average G Force (m/s2) over the
duration of the test, in the front to rear direction.
Peak Acceleration (Left/Right)
This is the maximum recorded G Force (m/s2)
detected during the test, in the left or right direction.
NOTE: This feature is included for reference only.
There may not be any regulatory data available to
determine if a test result should be considered a
Pass or Fail result.
Road camber, tyre condition, driver action and so on
may cause a test vehicle to pull off centre under
heavy braking. If the pull is noticeable, it is
suggested that the brake components be checked for
signs of wear or leaks etc.
Vehicle pulls to the Left (or Right)
This is an indication of the direction from centre the
vehicle is deviating toward during the test.
Stopping Distance (metres):
This is an estimate of the distance the vehicle travels
from commencement of braking to complete stop. It
is calculated from Average Deceleration and the test
time.
