Engineering Design of the Platform Edge Screens for Crossrail’s Mined Stations

The term Platform Edge Screen (PES) is used in this paper to describe the complete platform edge assembly, comprising platform screen doors, an upper ‘service wall’ supporting lighting, communications, and cabling, plus a smoke-extract duct positioned over the track, as well as the structural frame on which all these elements are supported. The design of the PES has been prepared by the C100 Architectural Component Design package. The scope of C100 covers the fit-out and finishes of all Crossrail sub-surface stations from gate-line to platform. This paper is written from the perspective of C100’s structural engineers. The term PES-frame is used to describe this structure throughout this paper. This PES-frame design applies to five mined sub-surface stations; Bond Street, Tottenham Court Road, Farringdon, Liverpool Street, and Whitechapel.