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Network Rail announced on 19 January 2007 that it has awarded Ansaldo
the contract for the first stage of a £60m project for the implementation
of the European Rail Traffic Management System (ERTMS) in the UK.
This new in-cab signalling system is based on information being relayed
directly to the train via a digital radio instead of by lineside signal.
With this new system, the time and distance needed to safely separate
trains is managed dynamically, allowing for greater capacity on the
line as well as efficiency and reliability improvements owing to the
removal of the old signalling systems.
The plan is to replace the old signalling system on the Cambrian route
between Shrewsbury and Aberystwyth and Pwllheli with the new in cab
system. Ansaldo will work with the Network Rail to draw up designs
for implementation.
The first stage contract is for the design of the system and it has
been awarded to Ansaldo because of its significant experience in designing
and implementing ERTMS systems in Italy, Spain and France. The design
work will commence immediately and is expected to be complete by summer
2007.
Network Rails Director, Major Projects & Investment, Simon
Kirby, said: This is an exciting time for the Cambrian route.
Network Rail is committed to enhancing and improving performance and
this project could bring big benefits to the line while allowing us
to learn more about ERTMS. After a very close examination of the competing
bids, we felt that Ansaldo has the relevant experience and also demonstrates
the best overall value.
Mike Bagshaw, commercial director for Arriva Trains Wales, said: The
installation of modern signalling that will deliver increased reliability
on the Cambrian route is good news and Arriva Trains Wales welcomes
the opportunity to participate in the development of this system.
The European Rail Traffic Management System (ERTMS) is a cab-based
signalling and train control system that could deliver benefits to
passengers by improving performance, increasing capacity and improving
the cost efficiency of the railway. It also offers full automatic
train protection (ATP). On the Cambrian line Network Rail and industry
partners plan to implement level 2 of the ERTMS system. All trackside
railway signals will be removed and new axle-counters, interlocking
and balises will be fitted along the route, along with the digital
radio link and a new Control Centre to manage the system to be built
in Machynlleth. Using data from these systems the onboard computer
on each train will allow it to reach its maximum permitted speed while
maintaining a safe braking distance. The new system will replace the
current RETB (Radio Electronic Token Block) signalling system on the
215km Cambrian route from Shrewsbury to Aberystwyth and Pwllheli.
This route was chosen because it is a self-contained part of the network
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