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High speed rail


a combination of timetabling, operation and systems believes Rabouel: ‘SNCF runs 12 to 13 trains per hour at peak on three high-speed lines - Paris to Lyon, Atlantic and North. It can prove difficult, but with twenty years of experience, we can certainly say that we have the timetable building and infrastructure operating experience to make it work – and work well.’


Beyond technical


The issues for those planning new high- speed lines go far beyond the technical. Social and economic impacts are bound into the engineering decisions when setting routes, stations and speeds. Experience from projects around the


train arriving from Liverpool or Glasgow at the converging junction will have to meet a narrow window in the timetable. On SEA there will be TGV’s coming


from Toulouse, the Spanish border, La Rochelle, Nantes and remote Brittany, needing to meet the precise time gap on the high speed line and continue on to Paris. Accommodating converging trains while achieving high capacities requires


world fed into a study on the carbon impacts of HS2 by SYSTRA for high-speed research group Greengauge 21 (see page 65). For the first time, the Greengauge 21 study considered the broader carbon implications of HS2, and made recommendations on how carbon savings could be maximised. Greengauge 21 is currently researching


how many jobs will be created by the construction and operation of HS2, with a report to be published this summer. This will include an analysis by SYSTRA of the employment impacts of six high-speed rail projects in France, including the 140km first phase of the Eastern Branch of the Rhine-


Rhône high-speed line, which created 6,100 jobs during its construction, over one-third of which were local.


Though every high-speed project is unique, it is important to learn lessons from the past in order to design for the future, said Boagey: ‘There is a wide world of accumulated high-speed rail experience; we have to learn from the best of it.’ www.systra.com


ALL of Cable Detection’s Locators and Transmitters are Network Rail approved!


Page 62 June 2013


Image: Systra

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