Posted: November 29, 2011 Filed under: Cars & traffic | Tags: Department of Transport, East West Tunnel, Eastern Freeway, Eddington Report, Kenneth Davidson, Melbourne Metro, Northern Central City Corridor strategy, Regional Rail Link, Sir Rod Eddington
Prospective corridors for road tunnel (Eddington Report)
I take an agnostic view of freeway proposals – I don’t assume apriori that they’re all bad or all good. I prefer to look at the evidence first before deciding if a proposal has merit or is a poor idea. But it seems there are some who will overlook evidence to the contrary if it undermines their ideological view.
Like Kenneth Davidson in his column in The Age on Monday, Why the east-west road tunnel is a stinker, I have some misgivings about the tunnel proposed to connect Melbourne’s Eastern Freeway with the Western Ring Road. The Victorian Government has just submitted a proposal to Infrastructure Australia, seeking funding to develop the tunnel idea further.
My key concern is the anaemic benefit-cost ratio. But Mr Davidson, who’s a senior columnist at The Age, goes further. He reckons the proposed tunnel recommended in 2008 in the Eddington Report is a “stinker” and a “confidence trick”.
That’s because an earlier study undertaken for the Bracks government in 2004, the Northern Central City Corridor strategy (NCCC), found most of the traffic coming off the Eastern Freeway heads into central Melbourne. It found only 15% is bound for the northern or western suburbs. “In other words”, Mr Davidson says:
the public justification for the east-west link – that it would take traffic away from the central business district – was a confidence trick……The first question (Eddington) should have asked was where did the 2004 study go wrong.
I don’t think anyone disputes the NCCC study was negative about the case for the tunnel. Nor is Mr Davidson the first to raise this objection. The “gotcha” Mr Davidson seizes on with such alacrity is that Sir Rod Eddington apparently ignored the NCCC study’s key finding.
But it seems it’s Mr Davidson who’s doing the ignoring. The Eddington Report actually does consider the NCCC study. Moreover it deals with it in a way that is prominent and impossible to miss by anyone with their eyes open (read it – Chapter 5, page 129).
The Report argues it’s a myth that nearly all Eastern Freeway traffic is destined for the inner city. It says the NCCC produced diagrams that present “a distorted view of traffic distribution (and further NCCC modelling for a future link would have identified and addressed this issue)”.
In a section titled, ‘Myth 2: nearly all the Eastern Freeway traffic is destined for the inner city’, It argues the NCCC study didn’t look beyond the capacity of existing roads or the ultimate destination of traffic once it left the NCCC study area.
First, given the roads in question, the traffic distribution (identified in the NCCC study) is not surprising: at the end of the freeway, there are ten freeway standard traffic lanes (five each way). By the time traffic reaches Macarthur Avenue in Royal Park, the corresponding ‘connection’ is a two-lane road (one lane each way). The traffic distribution is as much a function of the roads available, which progressively reduce in capacity towards the west, as it is a reflection of the demand for a particular direction of travel.
Secondly, when the (Eddington) Study Team analysed how traffic from the Eastern Freeway is distributed (with the analysis closely matching the NCCC distribution), it revealed that around 40 per cent of the daily traffic from the freeway travels beyond the central city area – to the south and the west. That is the case with the current network: in the future, EastLink will add a new dimension.
The Eddington Report also argues (page 137) the NCCC study focussed on Eastern Freeway traffic and didn’t fully consider traffic using adjacent streets instead. Moreover, it didn’t recommend against the tunnel because insufficient vehicles would use it, but rather because the high cost of construction yielded an inadequate benefit-cost ratio. Read the rest of this entry »
Posted: October 26, 2011 Filed under: Public transport | Tags: Crikey, East West Tunnel, Eddington, Melbourne Metro, rail, road, train
Melbourne Metro - proposed tunnel alignment and stations
From Wednesday’s Crikey newsletter (gated), in the Tips and Rumours section:
Vic government tunnels under greenies. A Victorian political spy reckons the Baillieu government is about to resurrect the East-West road tunnel underneath Royal Park at the expense of the Labor government’s planned Melbourne Metro scheme. It’s “a big up-yours to all the inner-city greenies that gave the old government such a run-around,” they say.
Assuming the Crikey report is well-founded (and it might not be – it is only a rumour, after all), I wouldn’t expect any government would be silly enough to announce it is abandoning a rail project in favour of a road project. No, it would say it’s going to do both.
The road would simply get priority over the rail project when scarce capital funds are doled out. The $40 million already allocated from Infrastructure Australia for Melbourne Metro will continue to be applied to feasibility studies and planning approvals, but if Crikey’s report is true, the project will languish for want of the billions needed to build it.
If that’s what’s intended by the Government, it could create an enormous problem. I’m not so much concerned that the Government might dare to build a new freeway as I am about the possible loss of the Melbourne Metro project.
Melbourne Metro is a response to the looming shortfall in capacity in the city’s rail system. What’s needed to expand capacity, according to the Eddington Report, is a new line in the CBD, essentially linking Flinders St and Southern Cross stations.
This could be achieved with a relatively short tunnel. However Eddington recommended that it be done with a much more ambitious tunnel running from Footscray to The Domain (and ultimately Caulfield) with new stations at North Melbourne, Parkville, the CBD (two) and The Domain – see exhibit. The first option costs a lot less but the second provides more capacity and has wider economic benefits, especially in terms of enhanced urban development.
If funding for Melbourne Metro is to be delayed (and again I emphasise the “if”), the Government needs to explain how it’s going to deal with the looming rail capacity problem in the city centre.