User Guide
Product: Evolis
A_Evolis Solution GB elancity
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Date: 03/01/2018
Confidential document, property of ELANCITY. All copies and transfers are unauthorized without prior consent.
7.3 PERCENTILES
The 85% percentile is an indicator that helps indicate the behaviour of the majority of drivers.
It reflects the speed respected by 85% of motorists and is obtained by stripping out the bottom
and top & bottom 7.5% of speeds recorded (i.e. strips out the extremely fast and extremely
slow vehicles)
If the 85% threshold is is close to the average speed recorded, this indicates that the speeds
observed on a road are consistent. If it is not close to the average speed, this means that a
significant proportion of drivers are above the average recorded speed.
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