scope:

This technical specification applies to rail and baseplate pads for Open, Sub-surface and Tube sections in the following applications:

a) rail pads between flat bottom rails and concrete sleepers or bearers

b) rail pads between flat bottom rails and baseplates

c) baseplate or chair pads between baseplates or chairs and sleepers, bearers or concrete track.

Although rail and baseplate pads are expected to contribute to the mitigation of noise and vibration, this specification does not cover the requirements at sites with particularly critical noise and vibration issues, for which site-specific solutions may be required.

This technical specification applies to you if you are working within TfL, including LU staff, Transport for London (TfL) engineering staff and all suppliers involved in the design, manufacture or supply of pads as an item or within an assembly.

Purpose

This technical specification provides requirements for rail and baseplate pads that are to be used on the London Underground (LU) network.