swt_passenger
Veteran Member
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- 7 Apr 2010
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How do hybrid platforms comply with both the UK regs and UIC regs for platform heights? The high speed platforms must be P55 or P75 (550 or 750 mm high) to comply with the Interoperability Regs and UK classic must be 915mm high (GEGN8573 Rail Safety and Standards Board)
They aren't actually GC and UK hybrid, according to the route engineering report. They are only 'hybrid' to the extent that they are connected to both routes, ie HS2 and the WCML, but they can only be used by domestic and 'classic compatible' trains.
For the 2 hybrid platforms, the track layout would connect to both the HS2 alignment towards Old Oak Common and the existing WCML towards Camden and Primrose Hill. These platforms would be 415m long and while they could not cater for GC trains, they would cater for classic compatible HS2 trains, as well as conventional UK size trains, including the existing sleeper services.
The hybrid platforms would add operational flexibility and robustness for service recovery from delays for both HS2 and classic services. They would also provide the only means of transferring trains between the HS2 and Classic networks at the London end of HS2. The connection would provide the opportunity for the late evening southbound HS2 hybrid trains to arrive from HS2, but go to the Willesden/ Wembley area for overnight stabling and maintenance (and vice-versa at the startup of service in the morning). This Wembley facility would not be available for GC HS2 trains. The hybrid platforms would be 12m wide with a similar taper to 9m. Where platforms would be curved, a minimum curvature of 1,000m would be used.
http://highspeedrail.dft.gov.uk/sites/highspeedrail.dft.gov.uk/files/hs2-route-engineering.pdf