Harrow Borough highways maintenance team commissioned non-destructive investigation specialist Aperio to survey its road network using an advanced radar system. The results give pavement thickness data and indicate the materials used in what are often highly variable pavements.
John Greenfield, senior highways maintenance engineer, opted for radar instead of traditional coring and trial holes because the radar gives continuous rather than point data. Initially the information will be used in generating better solution proposals by improving interpretation of the annual deflectograph survey, which requires pavement thickness data to determine residual life.
Beyond that, Greenfield sees wider benefits. 'With accurate construction data I can send out a team to repair a broken gully connection with the right tools for the job and the right materials to reinstate it first time'.
'The whole package has come together in the last year: the multi channel digital radar system, relocation devices, processing software and the computers to handle the data,' says Aperio director Jon Baston-Pitt.
Tel: (0870) 600 8050