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Introduction reference profiles

As a support for controlling the implementation of the unevenness indices calculation, three longitudinal profiles are available. The profiles represent low, medium and high unevenness. A true value for each is also available. The longitudinal profiles are 1000 meter long (the start value 0,0 is excluded) and have the vertical unit millimetre. They are available with three step lengths (acquisition repetition intervals) 0,05 m, 0,1 m and 0,125m. The profiles are embedded in the last page of the downloadable PDF-file below.
The true IRI value is calculated with respective Δx=0,05 m, 0,1 m and 0,125m and presented as an average per 20 meter. (updated December 2018)


Reference Profiles


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