VolkerRail uses a converted tamping machine for video track inspections. This machine is called 'Sherloc' and has UIC number 99 84 994 6 060-1.
The Sherloc is seen here at the Gouda - The Hague line.
Nootdorp, Saturday 12th June 2010.

Photo © Rogier Peeters (rogierpeeters@gmail.com)