steveintoronto
Superstar
Garuda said: ↑I'm sorry, I don't quite understand what you mean. Can you please explain what's special about Edmonton?
I'm curious, is the diameter of that tunnel large enough should the Crosstown Line become heavy rail for TR trains?
There's nothing "special" about Edmonton, that's the point. Running tunnel bore which is almost the same for many LRV in tunnel, is the same for high or low platform. Crossrail uses an even smaller bore, with high platform, albeit they are single deck trains. Full heavy mainline trains.The tunnels yes, the stations no as the LRT is low floor while Toronto Rockets are not.
As an example, here's how close Crosstown's tunnels come to international heavy rail bore size, larger than any other running gauge in the UK (Eurotunnel trains can't travel beyond the Chunnel tracks):
http://www.wired.co.uk/article/exclusive-look-crossrail-tunnel[...]
These huge TBMs have been instrumental in creating much bigger tunnels for Crossrail, too. When the Jubilee line was extended in 1999, the new tunnels were 4.4 metres in diameter. By comparison, Crossrail is a giant at 6.2 metres in diameter, and only marginally smaller than the high-speed Channel Tunnel rail link (7.2 metres). [...]
And here's an example of what RER can do:
http://www.railwaygazette.com/news/...Ms-cross-city-line-follows-the-rer-model.html[...]
(Paris double decker) Line A measures 107 km from end to end, which compares with 103 km for Crossrail. It includes 25 km of tunnel, while Crossrail will have 27 km. Both routes have seven inner city stations, and there are 46 stations on both systems. Line A tunnels are generally single-track bores with a diameter of 6·4 m, which is also intended to be the diameter for the Crossrail tunnels.
Train operations will also have similar service objectives. Line A in Paris now carries more than 60 000 passengers per hour in the morning peak on each track, similar to the forecast figure for central London. Platform widths are also expected to be similar, at around 6 m.
The maximum speed of Line A rolling stock is 120 km/h, with an average commercial speed in the city centre of 49 km/h. Maximum station dwell time in the centre is 50 sec. This and other design targets have been achieved through careful matching of the rolling stock and signalling. Sacem is able to achieve 2 min headways between trains, allowing operators to provide a consistent level of service at 27 trains an hour. Without Sacem, the interval between trains would be 2½ min. Crossrail has similar aspirations, with automatic train operation an option under consideration for the central tunnel section.[...]
http://thecrosstown.ca/EastStationDesignUpdateTextSummaryThe Eglinton Crosstown tunnel will consist of side-by-side or twin tunnels. Each tunnel will be 6.75 metres internal diameter.
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