http://www.theage.com.au/victoria/metro-rail-tunnel-melbourne-needs-it-so-lets-build-it-20150416-1mm6h3.html
Metro rail Tunnel: Melbourne needs it, so let's build it
April 16, 2015 - 12:25PM, Adam Carey
It is difficult to overstate how badly Melbourne needs the Metro rail tunnel.
The city has an extensive train network, but it is a colonial relic and beginning to split at the seams.
A hundred years ago Melbourne's population was 1.3 million. Today it's 4.4 million. In that time the only significant expansions that have been added to the rail network are the City Loop and the Glen Waverley line.
Today we are faced with a situation in which rail lines that serve booming suburbs are getting close to capacity, meaning they will not be able carry the hundreds of thousands of extra people who will move to Melbourne in coming years. If nothing is done thousands of people will not be able to get into the city by train in peak hour, and the city's economic productivity will be throttled.
Lines from Pakenham, Cranbourne, Sunbury, Craigieburn, Upfield, South Morang and Hurstbridge are all very near the upper limit of how many trains they can handle per hour in the peak, and varying degrees of overcrowding have been recorded on all of them. With many of those lines, the squeeze is on because it is not possible to push any more trains through the City Loop.
The Melbourne Metro tunnel will give much needed breathing space in the City Loop. It will create a new rail path through the CBD for trains on the Pakenham and Cranbourne lines in the east and the Sunbury line in the west. All of these lines service suburbs where Melbourne's growth spurt is happening in earnest and where the population far exceeds prospective job numbers, meaning most residents must travel to get to work.
It is worth comparing the number of people Melbourne Metro will move with how many the cancelled East West Link road would have moved.
In raw terms, the Metro tunnel will create space for an extra 17 trains an hour in each direction, each capable of carrying 1100 passengers - 37,400 people an hour in total.
The East West Link was projected to carry 80,000 vehicles a day by 2031, which equates to 96,000 people using VicRoads' measure that shows each vehicle in Melbourne carries an average 1.2 people.
So even on those numbers, the Melbourne Metro is a significantly greater people mover than the East West Link would have been.
But the shot in the arm the rail tunnel will provide to Melbourne's public transport capacity will extend far beyond the 17 new hourly train slots it will create.
One of the City Loop's tunnels, the Northern Loop, is shared by Sunbury, Craigieburn and Upfield line trains and it cannot take any more. Were Sunbury line trains to switch to the new rail tunnel, it would create capacity for 17 trains an hour on the Craigieburn line and six from Upfield, according to Public Transport Victoria's long-term rail plan.
In the south-eastern suburbs, the removal of Cranbourne and Pakenham line trains from the City Loop will enable Frankston trains to go back into the Loop. This will free up space for Sandringham line trains, which are also suffering worsening overcrowding in the morning peak.
The tunnel makes sense for Melbourne, let's hope the government can deliver on its word and build it.
L2R2R, are you reading this? just in case you missed it, here are the stats:
- The Metro tunnel will create space for an extra 37,400 people an hour in total.
- The East West Link is projected to carry 96,000 people per day
this means that the metro tunnel can carry as many extra people in 2.5 hours as what the EW link can in one whole day. think about that for a second... and this can be done at far cheaper cost.