The world would be a much better place if transport operators would stop spinning patronage numbers to the media and public and start giving us the salient facts instead.
The Financial Review reported on Thursday that travellers in Melbourne aged 20-29 years comprise 38% of all public transport users in the city. This figure is in line with the claim of the WA Public Transport Authority that 18-25 year olds comprise 35% of all train users in Perth and 40% of all bus users.
As I’ve indicated before, I find these sorts of figures very hard to believe, given these two cohort’s each comprise around 15% of the population. In fact they’re extraordinary. It’s true young adults have always been over-represented on public transport because many are on relatively low incomes, but it’s the sheer scale of these figures I find too good to be true.
The reality is they’re not true, at least for Melbourne. The real situation is shown in the first exhibit. According to the Victorian Department of Transport’s VISTA database, travellers in the 20-29 age group account for only 22.3% of public transport users on an average day. If confined solely to the average weekday, the figure is a little lower, 21.9%. If instead we look at public transport boardings – to allow for the possibility that young adults make more multi-modal trips than others – the proportion in the 20-29 age group using public transport is a little higher, but still only 22.9%.
That’s a long, long way short of 38%. One explanation for this evident discrepancy could be that public transport operaters are measuring something else. VISTA is a snapshot of travel on a typical day, but it could be operators are counting the number of people who have ever used public transport – even if only once or twice – in some preceding period e.g. in the previous week, month or year. This will invariably give a much higher total patronage figure than VISTA or the Census because it picks up everybody who’s used train, tram, bus or ferry at least once during the (longer) period.
If this explanation is right, it would account for why claimed patronage levels for public transport are sometimes breathtakingly high compared to the customary, more rigorous ways of measuring travel. I’ve commented before on Metlink’s use of these sorts of inflated, self-serving numbers in its marketing material, but perhaps it’s a common practise in other states too. But by itself this explanation doesn’t fully account for why the young adult cohort’s share is apparently so high relative to others (see second exhibit). Read the rest of this entry »
The President of the Public Transport Users Association, Daniel Bowen, posted some “unofficial” stats last week on boardings at Melbourne’s railway stations in 2008-09. I’ve used these numbers to put together the accompanying exhibit showing the number of weekday boardings on the Epping and Hurstbridge lines. These two lines join into one at Clifton Hill so I’ve shown the section from there to Jolimont separately (too much effort to do any other lines!).
Daniel emphasises these numbers come with no warranty as to their accuracy but they did come from a “good source” in the Department of Transport. He reckons inflating the numbers by 11.4% will give a fair estimate of 2010-11 boardings.
I want to make a number of essentially speculative observations prompted by these numbers (for the purposes of this discussion I’ll leave the numbers as they are).
First, there seems to be no statistically significant relationship between the number of boardings and distance from the city centre i.e. from Jolimont to both Epping and Hurstbridge (admittedly my measure of “distance” is rank order of stations not kilometres, but I don’t think that matters). So while the proportion of the population resident around each station that uses the train generally declines with distance from the centre, the absolute number of boardings isn’t correlated with distance.
This may seem surprising because stations close to the centre are more proximate to the CBD’s many and various attractions and might be thought to enjoy higher dwelling densities than more distant stations. However it appears that other variables, such as the accessibility of a station to the surrounding population, are a more important determinant of the number of boardings.
Second, location on a junction of the rail network is not a guarantee of a large volume of boardings and nor does the absence of a junction mean a station will only ever have a minor role. Clifton Hill is the only station on this line that’s on a junction and has a reasonably large number of boardings, but not as many as Ivanhoe, Heidelberg or Reservoir.
Clifton Hill only ranks 36th in patronage of all stations (excluding the five loop stations) but that’s better than two other “junction” stations, Burnley (48th) and North Melbourne (90th). Eight of the 20 largest (non-loop) stations happen to be on junctions but twelve aren’t — my interpretation is being on a junction was a distinct advantage in the early days of rail and gave those eight a head start. Nowadays however the broader characteristics of centres appear to be more important drivers of boardings. For example, Ivanhoe is not a large activity centre in terms of jobs, but its station serves two large private schools and is an important pick-up point for buses serving schools in Kew. Heidelberg also has a school but more importantly has a large number of jobs in and around the Austin Hospital and has the local courthouse. Clifton Hill is disconnected from the nearby retail strip, has little nearby space for commercial or more intensive housing development, and is “in competition” with the No. 86 tram. Read the rest of this entry »
I’ve noted before that only 30% of commuters who work within the Hoddle Grid – i.e. the area bounded by Spring, Flinders, Spencer and La Trobe streets – drive to work. However only a block or two beyond the city rail loop, the share of work trips taken by car increases steeply to 50-60%, and above.
Peter Parker at Melbourne on Transit offers an explanation. Using Metlink, he found a journey from Laverton station to Melbourne Town Hall in the morning peak takes 33 minutes. However if the Laverton traveller is bound for nearby Docklands (Waterfront City), the trip takes an extraordinary 54 minutes. Anyone travelling from Greensborough station to the same two destinations would have to allow an additional 29 minutes to get to Docklands and if travelling from Cheltenham station an extra 30 minutes.
In other words, once a traveller gets off the rail system in the CBD, further travel to near-CBD destinations is very slow. This is in part because the rail loop was not designed primarily to move people around the CBD and in part because trams are slow. Peter explains:
We have trams but unlike some compact European cities we don’t have a dense metro in the job-dense 2-5km core that allows for fast local travel. Instead for the ‘last mile’ we rely on slow surface modes, notably trams and buses, often without their own right of way.
Public transport’s mode share in the vicinity of Waterfront City is just 22%. This is despite the area having a frequent tram service. Given the huge investment in public transport in the city centre, any mode share below 50% is very disappointing, but the figure for Waterfront City is appalling.
I suspect there are two key reasons for the low mode share of near-CBD areas. The first is simply that the cost of driving and parking in these areas is still reasonably low – so workers drive because they can. Perhaps there’s a high proportion of workers in the CBD fringe whose status attracts a “company car”. Perhaps also there are more institutions like hospitals with shift workers who drive off-peak. The second reason is that movement within the city centre by public transport is too slow. That’s partly because the rail loop is not configured well for intra CBD trips and partly because trams are slowed by cars, particularly at intersections.
The CBD is one of those places where I think it’s very hard to justify commuting by car, given the enormous investment in public transport infrastructure and the extremely high accessibility it provides to the rest of the metropolitan area. It’s such a vital asset to the city as a whole and to the State that its amenity should not be despoiled by the noise, fumes and danger of too many cars.
The Melbourne City Council has proposed some worthwhile improvements, such as a maximum speed limit of 40 km/hr in the CBD (although I’d prefer 30 km/hr) and a plan to eliminate cars, taxis and vans from Swanston Street (although I fear the potential for pedestrian/cyclist conflict has not been fully resolved). Read the rest of this entry »
As the accompanying chart shows, public transport patronage has grown sharply in some of Australia’s capitals this past decade but the rate of growth has generally slowed significantly over the last 18 months.
We’re accustomed to thinking that growth in patronage is driven by higher petrol prices but the chart indicates the explanation is probably more complex.
In particular, the considerable differences between cities suggest that one single factor is unlikely to provide a satisfactory explanation. Patronage grew spectacularly in South East Qld, Perth and Melbourne, but was modest in Greater Sydney and unremarkable elsewhere.
It needs to be borne in mind that all of this growth is from a relatively small base. For example, public transport’s share of all motorised travel (weekday and weekend) in Melbourne is even now only around 11%. This is only slightly lower than Sydney’s. Perth is likely to be only around half Melbourne’s level and Brisbane somewhere in between.
The usual suspect when looking at increasing public transport patronage is higher petrol prices. However if that were the key factor we’d expect a more uniform pattern of growth across cities. Canberra has one of the highest levels of car use of all capitals, yet public transport patronage in the nation’s capital barely moved over the period. The same is true of rising traffic congestion. Sydney would have to figure much more prominently if this were the key driver. Read the rest of this entry »