CityCyclingEdinburgh Forum » Infrastructure

Objective assessment of road defects?

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  • Started 9 years ago by Tulyar

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  1. Tulyar
    Member

    Mainly from a discussion on the tram track and the transverse profiles filled with ridges and slots.

    Here's a way to take a profile of a defect in the road surface, with a profile comb.

    Here's a profile comb

    http://www.screwfix.com/p/forge-steel-profile-gauge-10/7233c

    Put the comb down on the profile and push down the elements so that the lower ends take the shape of the rail-road profile.

    Take a sheet of card and place it against the comb so that with a pencil or pen you can trace the transferred profile from the upper ends on to a flat surface for measuring up later.

    You can also get a more subjective assessment using a straightedge (joiner's folding ruler)

    https://www.flickr.com/photos/h52/21748824728/in/dateposted-public

    Using coins of the realm you can measure the gaps - a £2 coin - 2.5mm - 3mm = limit for height of manhole frames & other ironwork above new road surface. Tactile tramlines = 5mm = 2 coins

    Posted 9 years ago #

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