Saturday, October 23, 2010

New Frankston line timetable and bus connectivity

The major feature of the October 2010 Metro train timetable was the upgrade of the weekday Frankston interpeak frequency from fifteen to ten minutes. As frequencies increase dependence on timetables lessen. And many passengers would be treating ten minutes as a ‘turn up and go’ service.

Intersecting tram routes would also be considered ‘turn up and go’, at least on weekdays. However for buses reference to a timetable is still important to ensure short journey times.

Connectivity and effective service frequency are maximised if train and bus headways are harmonised. The extent of frequency harmonisation varies across Melbourne as each mode is often independently scheduled.

This survey shows the effect of the Frankston line train frequency boost on bus headway harmonisation for each bus route serving stations between Caulfield and Frankston.

Station – Route – pre Oct 2010 – post Oct 2010

Caulfield – 624 – yes – yes
Caulfield – 900 – yes – no

Ormond – 630 – no – yes
Ormond – 625 – yes - yes

McKinnon – 626 – yes – yes

Bentleigh – 701 – yes – yes
Bentleigh – 703 – no – no

Moorabbin – 811/812 – yes – yes
Moorabbin – 823 – yes - yes
Moorabbin – 824 – no – yes
Moorabbin – 825 – no – yes

Highett – 827/828 – no – yes
Highett – 708 – yes – yes

Cheltenham – 600/922/923 – yes – no
Cheltenham - 811/812 – yes - yes
Cheltenham – 822 – yes - yes
Cheltenham - 827/828 – no - yes

Mentone – 708 – yes - yes
Mentone – 811/812 – yes - yes
Mentone – 825 – no – yes
Mentone – 903 – yes - no

Parkdale – 708 – yes – yes

Mordialloc – 705 - n/a - n/a (peak service only)
Mordialloc – 708 – yes – yes
Mordialloc – 709 – yes – yes
Mordialloc – 903 – yes – no

Aspendale -

Edithvale – 858 – yes – yes
Edithvale – 902 – yes – no

Chelsea – 857 – yes – yes
Chelsea – 858 – yes – yes
Chelsea – 902 – yes – no

Bonbeach –

Carrum – 708 – yes – yes
Carrum – 780 – yes - yes
Carrum – 857 – yes – yes

Seaford – 780 – yes – yes

Kananook – 778 – yes – yes
Kananook – 779 – yes – yes
Kananook – 832 – yes – yes
Kananook – 901 – yes – no

Frankston – 770 – no – no
Frankston – 771 – no - yes
Frankston – 772 – yes - yes
Frankston – 773 – yes - yes
Frankston – 774 – yes - yes
Frankston – 775 – no - no
Frankston – 776 – no - no
Frankston – 779/780 – yes – yes
Frankston – 781/784/785 – no – yes
Frankston – 782/783 – yes – yes
Frankston – 788 – yes - no
Frankston – 789/790/791 – no - yes
Frankston – 832/833 – yes - yes
Frankston – 901 – yes – no

Total before: Yes 39 – No 13
Total after: Yes 39 – No 13

Notes: Routes with irregular headways (eg 703, 775, 776) are counted as non-harmonised. Only routes with off-peak weekday services are counted.

Analysis

While the move to a ten minute frequency has not changed the number of bus routes that can claim to be harmonised with Frankston line trains, to conclude that there has been no change oversimplifies the effect on individual routes.

The most significant harmonisation gain was that restored to 20 minute frequency bus routes. I say ‘restored’ because they were previously harmonised when Frankston interpeak trains ran every 20 minutes (before the 1990s upgrade to 15 minutes). Some of these routes (eg 630 and 824) were the busier services that escaped the bus service reductions in the 1980s and 1990s (which saw some weekday frequencies reduced from 20 to 30 minutes). The other harmonisation gain has been in the Frankston area, where routes to Karingal (789/790/791) and Mornington (781/784/785) now combine to provide an even connection to every second train.

The main loss to harmonisation has been to the SmartBus and near-SmartBus routes (600/922/923, 900, 901, 902 and 903). Their 15 minute frequency matched the previous interpeak train frequency on the Frankston line. The effective frequency (ie the interval between when optimum connections repeat) has increased from 15 to 30 minutes for trips involving a transfer. However many passengers are likely to treat this as a ‘turn up and go’ connection, especially if changing from the bus to the train.

Metro’s Andrew Lezala favours the introduction of ten minute interpeak train service frequency on more lines, along with similar frequencies on tram and major bus routes. The latter obviously involves the orbital SmartBus routes, which currently run every fifteen minutes.

This pattern provides a legible ‘one-size fits all’ pattern where almost every interpeak orbital service runs the full route, despite greatly varying patronage along it. However if bus patronage continues to rise and more train lines are upgraded to run every 10 minutes interpeak, a future change to a 10/20 minute frequency pattern (lower service on the quieter portions) could provide needed gains in capacity and connectivity. Efficiency would also rise as services more closely match demand. There would be some decline in legibility, as alternate services would terminate short, but this may be outweighed by the consistent connectivity achieved by matching bus and train frequencies and the higher service on the busier portions.

Conclusion

While the numbers show no change to the proportion of bus routes that are frequency harmonised with trains during the weekday interpeak, the higher train frequency has improved overally connectivity by reducing maximum waiting times. It is for this reason that the gain of a 20 minute headway service becoming harmonised is greater than a 15 minute frequency service losing it.

Nevertheless to enhance their potential as strong feeder services, the principle that SmartBus services should be headway-harmonised with trains is worth keeping, and an approach to enhance this for our orbital routes is suggested.

Wednesday, October 20, 2010

Employment concentration and public transport service quality

Just over six months ago Alan Davies of the Melbourne Urbanist reminded us that the majority of jobs in Melbourne are (1) outside the CBD and surrounds, and (2) outside what Melbourne 2030 calls 'Major Activity Centres'. Outside the top four areas where employment is highly concentrated, is a 'long tail' of smaller centres which employ between about 1 and 2 percent of suburban centre jobs.

In descending order of significance the top four centres were Clayton, Tullamarine, Kew/Hawthorn and Box Hill.

I thought it would be worth comparing the availability of high-service public transport routes to and within these areas. This could help answer questions such as whether the largest employment centres had the best public transport, or whether historical factors, such as the era of development and presence of tram routes were more important.

Criteria used to assess service quality to these employment areas were as follows:

a. Service levels. The number of directions from which high service routes to the area is provided (at least SmartBus spans and frequencies). Lower frequency routes and branches are not counted, even though some approach SmartBus standards.

b. Travel speeds. As measured by the number of directions with services that operate on their own rights of way (eg railways, busways and segregated light rail).

c. Connectivity. Number of intersections between high-service routes.

d. Coverage. Extent to which the highest service routes are within walking distance of the highest concentrations of employment in the area. Assessed as low, medium or high.

Only regular Metcard/Myki ticketed routes were counted in this survey.

The overall rating comprises a Service, Speed and Connectivity score ( a + b + c) plus a coverage estimate for high service routes (described as low, medium or high).

Assessments by centre, starting with the largest, are as follows:

Clayton (includes area around Clayton Station, Monash University and Blackburn Rd)

a. Service levels

High service routes are as follows: Bus 900 (2 directions) and Dandenong line train (2 directions).

Total number of directions with high service routes: 4 (increases to 8 if the lower service 703 and 802/804/862 routes are included)

b. Travel Speeds

Number of directions with ROW route: 2

c. Connectivity

Number of intersections between above high-service routes: 0

d. Coverage

Train serves areas near Clayton shopping strip and Monash Medical Centre. Route 900 serves area near Monash University. Business parks and light industrial in the area are not served by the above routes. The area is pedestrian-hostile.

Overall: SSC score 6 with medium coverage.

Tullamarine

a. Service levels

High-service routes are Routes 901 and Routes 902. Route 901 offers service in one direction and Route 902 operates in both directions.

Total number of directions with high service routes:3

b. Travel Speeds

Number of directions with ROW route: 0

c. Connectivity

Number of intersections between above high-service routes: 1 (Mickleham Rd)

d. Coverage

Route 901 offers medium coverage of airport (stop is away main passenger gates). Both routes serve Mickeham Rd. Melrose Dr, Sharps Rd and Keilor Park Dr not served by above routes. The area is extremely pedestrian hostile.

Overall: SSC score 4 with low-medium coverage.

Kew/Hawthorn (area east of Princess St and from Swinburne University and north)

a. Service levels

High service routes are as follows: Tram 16 (1 direction), Tram 48 (2 directions), Tram 109 (2 directions), Bus 200/201/207 (1 direction), Ringwood/Alamein trains (3 directions).

Total number of directions with high service routes: 9

b. Travel Speeds

Number of directions with ROW route: 3

c. Connectivity

Number of intersections between above high-service routes: 3 (Kew Junction, Cotham/Glenferrie Rd & Glenferrie Stn)

d. Coverage

Most major trip generators are served by trains and trams that quality as high-service routes. Coverage is therefore high.

Overall: SSC score 15 with high coverage.

Box Hill

a. Service levels

High service routes are as follows: Tram 109 (1 direction), Bus 903 (2 directions) and Ringwood line trains (2 directions).

Total number of directions with high service routes:5 (increases to 9 if the lower service 270/271, 286, 281/293 and 281/767/768 corridors are included)

b. Travel Speeds

Number of directions with ROW route: 2

c. Connectivity

Number of intersections between above high-service routes: 1 (Box Hill Station)

d. Coverage

Good coverage within Box Hill Shopping centre and surrounds. Hospitals and TAFE colleges are near at least one high-service route. Overall medium – high.

Overall: SSC score 8 with medium-high coverage.

Conclusion

This analysis has many limitations. For instance area boundaries and job densities could have been established and the proportion of jobs within pedsheds of high-service stops should have been examined to obtain a more accurage coverage statistic. And the different local network topologies, from parallel non-intersecting routes (eg Clayton), to a single interchange point (Box Hill) to a multi-centred network (Kew/Hawthorn) could have been explored.

However the information gathered should be robust enough to show that that public transport service levels are not necessarily matched to a suburban centre’s employment significance. In particular the two largest centres (Clayton and Tullamarine) have high-quality services from fewer directions and not as many interchange points as the two smaller (but still large) centres.

Nevertheless service levels have become more equal between centres over the last five years, as tram service levels remained largely unchanged, new SmartBus routes commenced and local routes gained 7-day service. Five years ago, for instance, Clayton, the largest employment centre, had only one high-service route (the train), which missed the suburb’s biggest employer (Monash University). And less than one year ago Tullamarine, our second largest, had only occasional services. Both now have at least one high-service bus route serving the largest employer in each area.

Sunday, October 17, 2010

Urban plans, density and the middle class

Noel Pearson's 2010 John Button Oration (highly recommended - listen here) got me thinking about the relationship between urban plans (such as Melbourne 2030) and the relationship between it and various economic classes (especially the middle class).

To summarise, the intellectual middle class says what ought to be built and the capitalist landowning class goes off and builds, taking a risk in return for a possible profit. While planning regulations (largely drafted and interpreted by the middle-class) have some influence, the capitalist can apply the ultimate sanction, ie choosing not to build if they see no profit. This puts a limit on the strictness (or 'unworkability') of planning regulations, otherwise undersupply will be the result.

Urban planning can be seen as a tussle between a portion of the middle class (either as bureaucrats, academics or activist residents) and the capitalist upper class. The working class has a role as consumers through housing and shopping preferences. There is thus a consumer-producer relationship between the working class and the capitalist (if buying a project home for example), but the relationship between the working class and middle class is very limited.

I previously described Melbourne 2030 as a plan that favours the grouping of certain land uses (cafes, galleries, educational establishments and higher density housing) around transport hubs.

Favoured land uses represent the interests of the humanities-educated portion of the middle class plus some perceived working-class wants (or should haves). The latter being desirable to foster 'diversity' and 'inclusion'. Certain other land uses, such as bulky goods retail, fast-food and (especially) light industrial, are not part of the academic's world so tend not to feature prominently in their plans. Ignoring them does not make these uses go away, instead they go to the periphery without public transport or pedestrian access (Tullamarine and Laverton North spring to mind).

Lacking capital, the interested middle classes (especially academics, bureaucrats and council planners) use plans to advance what they see as the public (or is it their?) interest against the capitalist landowning class. To the extent that they are implemented they advance the former group's quality of life and aesthetic sensibilities. A Marxist analysis would also see city planning as part of a broader contest between intellectual and capital, with each group wanting their strength to prevail.

The middle class, even its humanity educated portion, is not homogeneous. As often played out in The Age, it is deeply split on the question of housing density.

There is what I would call the 'technocratic' or 'urbanist' middle class which favours higher densities for a more compact, less sprawling city better able to be served by public transport and other services. A substantial proportion of this group would have lived in or visited overseas cities with higher densities than ours. Some may work in planning. Their arguments are both environmental and economic, with the economic one being an echo of Le Corbusier's vision of cities as being 'machines for living in'. While it is another debate, this group may be quite relaxed about the city's capacity to house a higher population (though being quite well paid they will always be able to afford to live in the city's 'better' areas).

There is common ground between this group and developers (whose profit increases with density, since fixed costs can be spread across more units). The developers need this group to argue their case, while the urbanists need the developers to allow their preferred city form to be built.

Opposed to densification (at least in their backyard) is another faction of the middle class. 'Suburban protectionists' are less enamoured with high-rise and go by names such as 'Save our Suburbs'. This group professes a wish to preserve their neighbourhood's quiet streets, leafy verges and an always-free parking spot in front of the house. High-density is also thought by residents to be associated with crime, especially if 'outsiders not like us' (eg public housing tenants) move in. Hence NIMBYs ('Not in My Back Yard') are vulnurable to accusations of xenophobia or selfishness. While another (though related) debate, protectionists often question the benefits of continued population growth in our big cities, and may propose decentralisation (for others of course) to lessen pressures on our bigger cities.

As homeowners,suburban protectionists' key economic interest is their house value.

This is especially so for the middle-class.

The biggest determinant of wealth in Australia is whether you live in your own home or rent (those who both rent and invest are a small, savvy minority). Poor people are by and large not homeowners, so values are irrelevant to them. Then there's the rich. While they may live in nice homes the genuinely financially independent hold most of their wealth (80 - 99%) in other assets, such as their own businesses, rental properties, shares and the like. In contrast the middle-class person's home is their biggest asset, with most of their other wealth (superannuation) being untouchable until retirement. Hence concern that a development may lower house values is quintessentially a middle-class concern.

The relationship that high density leads to better public transport is also disputed. 2004 - 2008 for instance saw a train patronage boom but no commensurate service increase. And if higher traffic slows buses and trams, their efficiency will fall without priority. Academic support (in the sense that successful public transport is more a function of service planning than density) is offered by Paul Mees of RMIT.

To conclude, planning and the argy-bargy that goes with it, is a game between a protectionist middle class and a capitalist class (legitimised by a technocratic middle class). The middle class has brains but no capital. The capitalists have money and can co-opt as many middle-class minds as necessary. The middle-class itself is divided. Hence we generally get a largely market-oriented plan with some urbanist features such as denser activity centres and protectionist features such a (movable) urban growth boundary.