Quote:
Originally Posted by Truenorth00
Like I mentioned, converting a low frequency diesel commuter rail system to a high frequency electrified suburban rail system is already a massive effort. Indeed, it's the largest transit project in North America and one of the largest in the world right now. A complete change of rolling stock at the same time would have required a whole lot of additional infrastructure to house and maintain a separate fleet and added a lot of operational complications as they mixed various fleets. All of that for very little real gain. EMUs don't give GO substantial increases in capacity or efficiency. At least not to the level that justifies junking a 1000 coaches right away.
|
Yeah that's basically what I was getting at. Not that EMUs wouldn't be an improvement for parts of the network; just that it isn't an especially important improvement at this point. The main thing that a rolling stock replacement could help accomplish is to get rid of the double-deckers in busier, more urban parts of the network. Like the Kitchener corridor between Union and Weston. That could basically be a 2nd subway line similar to what Montreal did with the REM but having such large railcars with interior stairs and only two doors isn't good for dwell times.
What I'd personally like to see is the busiest inner routes be made into a GO version of REM. Lakeshore W from Union to Oakville, Kitchener line from Union to Mount Pleasant, Stoufville line from Union to Mt Joy, and Milton line from Union to Erin Mills via MCC. Lake shore W is currently only 3 tracks through Mississauga so that should be elevated as a 4 track viaduct. That would both provide extra capacity allowing 2 tracks to be REM and 2 to be mainline rail, but also eliminate the handful of level crossings allowing for greater speed. Outer services going beyond Oakville could reach 200km/h.
The Stouffville line between Unionville and Mt Joy would also be elevated but with two elevated REM tracks above the existing single track. The outer service beyond Mt Joy wouldn't be frequent enough to warrant an upgrade and the alignment seems a bit narrow for a wider guideway. The Milton REM would be partly separated from the current alignment since it would follow Lakeshore W route until Humber Bay and then head off along the Gardiner, partly elevated and partly in the median. It would leave the highway at Sherway and rejoin the rail alignment (with extra dedicated tracks) until about a km from Hurontario before it would dive into a tunnel to Square One / MCC, then along the wide 403 greenway until Erin Mills, basically replacing (or augmenting) that part of the busway.
The only major changes needed for the Kitchen line (since it's already quad tracked) is an elevated spur to Bramalea town centre and an elevated track through downtown Brampton about the current tracks to address the bottle neck where there are only two tracks and they're shared with freight and VIA. The REM part of the line would have three branches: The Bramlea spur, the Airport, and out to Mount Pleasant. The Erin Mills REM and the Oakville REM would share tracks between Union and Humber Bay as well as sharing a single Union platform. Each would see 15tph peak and 8-12tph other times except overnight where they'd each have 2-3 tph. With the Kitchener line REM, the airport, Bramalea, and Mt Pleasant would each see 10tph peak and 6-8tph other times with again about 2tph overnight. The Kitchener REM and the Stouffville line REM would operate as a single line with some services terminating at Unionvile.
The main advantage of this approach would be greater frequency and the ability of smaller, more metro-like trains to more easily use other alignments like climbing onto via ducts and having a few tunneled stations without the huge cost of them being big enough for long mainline rail trains. The rolling stock would be longer than Montreal's REM at about the size of TTC subway trains. There could be several infill stops such as Dupont, St. Clair, and Rogers Rd. on the Kitchener REM. And of course if wouldn't actually be called REM. I'd name it GO FAST (Frequent, Automated Suburban Trains). The existing stock would continue to provide most service beyond the FAST network.