EnFile and EnTuch software modules, Balfour Beatty Rail Projects Ltd Derby, London, Great Britain

Adaptation and extension of the EnFile and EnTuch software modules for application in Balfour Beatty’s project 'Terminal 5 Tunnels at London Heath-row Airport'. EnFile is a program for calculating towing curves and envelope surfaces of rail-guided and road vehicles with a check for collisions in three-dimensional space.

EnFile simulates the motion of road and rail-guided ve-hicles along a defined axis, for example aircraft, articulated buses, tractors with semi-trailers, luggage trailers, of any number. EnTuch is used for cal-culating clearance in tunnel and otherwise limited clearance profiles. It also supports track alignments in bored tunnels.