An advanced approach to maintenance is helping ensure that the UK county of Kent keeps on top of road drainage. Kent Highway Services (KHS) has a network of some 8,400km of roads and drains, which requires a fleet of vehicles to maintain and support. In order to keep traffic moving and avoid flooding hazards for motorists, road drainage systems have to be consistently monitored and maintained. Previously this was carried out on a reactive basis, but this has proved to be neither cost effective nor efficient