It's not just RHTT set that battle to keep the rail clear. Here one of Network Rail's Multiple-purpose Vehicles or MPVs. Built in Germany by Windhoff these sets are purpose-built departmental derivative of a diesel multiple unit. Twenty-five two-car units were ordered by Railtrack to enable it to replace its varied collection of ageing departmental vehicles. This is the 3S85 Effingham Junction to Effingham Junction via the SWR metro routes seen at Barnes on its way to Clapham Junction.