Appendix ANNEX C MAXIMUM PROFILE FOR UK1 GAUGE

The approach in the UK is to maximise the vehicle gauge while ensuring that the swept envelope of the vehicle is within the structure gauge at each point along the routes.

As a result the UK 1 gauge has initially been defined as a vehicle gauge:

1. 1..

   The diagram gives the basic dimensions for the UK1 gauge. (Static on a straight level track).

2. 2..

   The horizontal and vertical profile below 1 100 mm ARL must not be infringed under any combination of vehicle load, wear, suspension travel and geometric conditions.

3. 3..

   The effects of cant and kinematic movements combined with bogie spacing and bogie overhang, which require enlarged clearances on curves, have to be considered on a case-by-case basis.