Showing posts with label roads. Show all posts
Showing posts with label roads. Show all posts

Friday, August 19, 2011

The shape of Melbourne’s streets

A ramble through the street directory

It is not possible to talk about bus network design without referring to street planning, for streets represent the fist of cards from which bus route planners must choose.

City

The Central Business District forms our first grid, with its main thoroughfare and tram spine aligned NNW to SSE, though for simplicity I will describe this as north-south. Its blocks are rectangular, with the ‘little’ streets feeding into the axis streets.

To the north almost all city streets continue into others (albeit angled) as they become West Melbourne, Parkville or Carlton. To the south most streets are blocked by the river, with Swanston and Spencer Streets being exceptions. However walkers enjoy greater permeability with some pedestrian-only bridges to Southbank.

State Parliament and Southern Cross Station bookend the CBD to the east and west respectively. Bourke Street, the central partially malled shopping street, must yield to these buildings at both ends. Whereas Collins Street, its classier southern neighbour, was privileged enough to recently gain an extension at its Docklands end. Its ‘Paris end’ also exits the grid, its leftward veer dividing the politics from the money. Similar easterly access, though with a rightward turn, exists off Lonsdale and Latrobe Streets.

Much of Flinders Street is denied a river vista by Federation Square and the two-block station named after it. The building’s narrowness suits the need to maximise platform space; open skies being an advantage in the steam age. Further west, the railway viaduct squashes the river vista from this quarter of low repute, austere pavements and architectual mistakes. However Flinders, like Collins, is unconstrained by Hoddle, with its trams running east, west and then north.

Docklands is remote, windswept and a mystery to many who don’t work there. Shopping and stadium stunt access to it, via Bourke and Lonsdale, at Spencer. While the former allows pedestrian access, this walk offers insufficient instant gratification during the two block walk; the steep stairs, the railway overpass, Docklands stadium, some ramps and a pause for a busy road deter all but the leisured curious (and tall train spotters). Colour vison is wasted here; everything is a shade of grey, except for one or two still visible brown remnants from the 1970s. However those leaving Docklands are better rewarded as the bridge provides a vista down Bourke Street to St Patrick’s Cathedral.

Docklands’ north-south routes are for driving more than walking, while its finer-grained areas are beyond lunchtime range of unrushed walkers from outside. It could yet become a medieval village with few from outside. Waterfront City attempts a grid but highways or water stymie egress from most directions; it’s not like Elizabeth or Swanston where one can march north or south until one is footsore, as Henry Bolte would wish. Its east-west streets bear the same names as in the CBD proper, but not always the same vistas or tram routes.

The redeveloped Southbank features a somewhat disordered grid. Its thorougfares are either pedestrian or car; different to say Collins or Elizabeth Street where three or four modes mix. Its key pedestrian way is along the river with frequent bridges from the north bank. Vehicle access predominates to the south where roads distribute traffic from the West Gate Freeway. Unlike Docklands, Southbank shows its face to the CBD (via the river) and, its South Wharf portion excepted, is more accessible.

Suburbs

A kilometre or two away from the Melbourne Town Hall, particularly to the north and east, the angled CBD mesh gives way to a coarser but more extensive net whose streets are almost exactly north-south and east-west. The south-south-easterly St Kilda Road makes it gently diagonal in that direction, with junctions with numerous east-west roads (which are exceptionally supplied with trams thanks to the Prahran and Malvern Tramways Trust).

Grid spacing is closest in the old areas of Brunswick, Fitzroy, Richmond, previously home to small factories and the working class. Occasionally these fine-grained areas are interrupted by 1960s housing commission towers on ‘superblocks’.

Spacing widens with distance but the grid becomes no less perfect. It increases from about a half-mile in the 1920s suburbs (10 kilometres distant) to about a mile by 20 kilometres distant. These are all key roads, mostly with building frontages, and also occasionally with service roads further out. Beyond established housing a coarse grid exists as rural roads, no doubt becoming tomorrow’s arteries as suburbanisation encroaches.

Spacings between traffic lights and the roads themselves also widen with increasing distance from the CBD. For buses wide grids mean that service may also be needed on intermediate streets to provide reasonable coverage; something that 1km grids in suburbs like Mount Waverley only just avoids. But whatever their width, grids allow faster speeds and more legible bus routes; one traffic signal and no turns beats two junctions and two turns.

In some directions, particularly to the west, north and north-east, the grid may be interrupted by freeways, rivers, parks or scrap land. Fawkner to Reservoir is short geographically but distant by road, for example. The Yarra also divides and sparsens the suburbs, with only a few favoured roads granted a bridge.

Sometimes, like the bisected Bourke Street in Docklands, both halves may be similarly named, indicating either a former or intended joining. For example the Grieve Parades in Altona, which could make a fine Altona – Toyota – Sunshine industrial bus route if joined. Or the Balmorals, Crowns, Graces and Highs over in Altona Meadows. But hop over to Hoppers and the mile grid reasserts itself with the parallel Tarneit, Derrimut, Morris, Leakes, Sayers, Hogans and Heaths Roads.

Up in Sunshine West, Glengala Avenue goes some way before it hits the freeway. Had it hypothetically continued it may have given Derrimut a bus earlier (possibly an extended Route 454) instead of requiring a wait for a new route (400).

This example demonstrates that discussions about freeways and their form are not only about infrastructure priorities (eg freeways versus railways) but also about the importance of long-distance orbital versus more regionalised road access (that a half to one mile at-grade grid provides). Due to the lack of the latter in parts of the west, the Western Ring Road has been bigger for the west than Eastlink for the east, with its more contiguous development and continuous roads.

The southern portion of Sunshine West does not have an equivalent spine to Glengala Road in the north. The Avenue (which has a bus) forms the makings of a spine but its short streets to the north limits its legible pedestrian catchment. Access is possible into Wright Street but catchment streets are widely spaced compared to the less direct Talintyre Road with more branches. Neither Wright nor Talintyre have buses so some homes exceed 400 metres from one. Whereas streets with the best of both worlds (eg direct road with closely spaced side streets but not necessarily particularly high density) like Sydney Road in Coburg may have facilitated an accessible, fast and well-patronised service.

While four-way intersections are the rule, there are more at some locations. And not just at Five Ways, outside Cranbourne. In the inner-east, all roads lead to Camberwell. Camberwell’s centrality is so great, or the take-up of motoring in this affluent area so early, that it sapped surrounding suburbs of significant shopping strips. In contrast more homes are walkable from a supermarket along the less affluent Dandenong and Frankston lines.

Multi-way junctions attract the map viewer as much as they are cursed by drivers. Eyes scanning a map are naturally drawn to St Kilda Junction, Reservoir and the notorious but soon to be removed Haymarket roundabout in Parkville. Two or three roads may meet obliquely, slicing the suburban grid. Examples includer Camberwell (again), Kew, Reservoir and Footscray. However mass motorisation caused prewar accessibility to become congestion and multi-way junctions have not been favoured since.

Inside grids

There are differences as to what’s inside the grids. Inner suburbs have grids within grids, with older working-class suburbs like Brunswick, Collingwood and Richmond markedly denser than spacious Mont Albert or Malvern East.

Other planners filled their grids with curves, not unlike an arched window. That off Bay Street in Brighton boasts an inner, middle and outer circle. Albion’s Selwyn Street more successfully encloses its park but does not form the suburb’s centre. Western Glenroy’s arch is irregular, while Sunshine West’s is a neat rounded square.

Circles are rare enough to confer novelty, like knots in a timber beam, but aren’t confined to the poshest suburbs. Albert Park’s grand St Vincent Gardens is the full circle (or oval), unlike Brighton semi. Altona North must feel impoverished with just its tiny circle (called ‘The Circle’) with attempted polygons surrounding. Nevertheless it forms the hub of local commerce. St Albans’ circle daintily sidesteps its main road junction. It forms a six slice cake, with the railway splitting it cleanly in half. Commerce occupies one slice with reserves in the centre.

Central reserves are the common pattern; circle centres are too oddly shaped to subdivide and they provide a pleasant outlook for homes lucky enough to front them. Homes also provides passive surveillance for park users.

Centres however vary greatly in size. Unlike the scraps of land in St Albans’, the park in the aptly named Park Orchard’s circle is large and unbroken. It forms a large steering wheel, though three of the four spokes are footpaths rather than roads.

Not that distant is Circle Ridge in Chirnside Park. I’m guessing this surrounds a peak given the street name. If this is the case then its aim may be to angle houses to look outwards at the view instead of the usual inward park. Pakenham’s version has a literary bent and encloses a lake.

More common than circles in the postwar suburbs are curvilinear streets and then culs-de-sac. These were considered to offer greater interest to the resident and visitor while respecting land contours and calming traffic for childrens’ benefit. Unfortunately though the layout induces vehicle usage due to low pedestrian legibility and permeability. The ‘exclusive’ golf estates like Sanctuary Lakes, Chirnside Park and the unserveable Sandhurst are the biggest offenders, but the pattern is widespread.

There are sometimes access ways at the end of culs-de-sac but these lack street frontages and may be perceived as unsafe. Since local police and residents groups often support closure of access ways and alleys (to reduce assaults, theft and graffiti), such access is less permanent as that via grid streets with street frontages.

The busier arterials in these areas may lack building frontages (more the case in newer cities like Canberra than Melbourne), or, where there are still buildings, they are set back from the street with service lanes and large front parking areas. Intersections are widely spaced, and in the worst cases are controlled by roundabouts. Distances are too far for people to talk or even recognise one another in the next building or across the street, from one shop door to another.

And even if they could (eg through a GPS-based mobile phone app linked to Facebook), the limited pedestrian access only grudgingly provided at widely spaced intersections means that such roads cannot sustain the form of street life written about by Jane Jacobs. Neither this nor the curvilinear distributor street nor the cul-de-sac suit efficient ‘last mile’ bus routes; one reason for the success of trams, along with their service levels, is the walkable grid that feeds each stop.

New urbanist planning has influenced new residential street layouts more than locating new shopping centres near stations or making industrial employment areas walkable. Modern estates now have straighter or at least connected streets compared to those of the 1980s. Altona Meadows was an early example, with a dense grid not unlike older suburbs. This layout allows a single bus route (411/412) to serve a suprisingly large catchment. And while weekend services are limited, its 20 minute weekday frequency is high for a 1970s-1980s suburb.

This evolution is clearest in established outer suburbs that have grown continously for a century or more. Central Cranbourne, Pakenham or Werribee both have old-style grids. Around 1 to 2 km out several kilometres of cul-de-sacs start. Even further out is often a modified grid, less regular than the old but with a legible central street that could take a tolerably direct bus.

However there is still difficulty in connecting adjacent estates. Bridges are expensive and we're not so gung-ho about draining swamps these days. Hence Shearwater Drive in Pakenham peters out into a park and creek and there appears no provision to connect it to Meeking Drive (and thus link it to the proposed Cardinia Road Railway Station). Buses instead would need to weave on and off the main highway, slowing travel and likely partly duplicating other routes.

Street design for walkability and transit has improved over the last thirty years but not over the last hundred. And decades of impermeable layouts and controlled access roads has left us with a legacy of culs-de-sac to open, super-blocks to bust and roundabouts to remove to improve accessibility.

Friday, August 05, 2011

Road transport's most civilised invention?

Safe, reliable and direct pedestrian access to transport stops is a more fundamental need than niceties like seats, shelters and real-time displays. The latter all improve the passenger experience but are of little use if access to the stop is difficult.

There are numerous ways to improve pedestrian access across roads. Their cost varies from negligible (for a zebra crossing) to many million (for an overpass). In between are treatments involving median strips or traffic lights. Their effectiveness (as measured in terms of average and maximum wait times) likewise varies. There are also trade-offs, mainly based on whether we prefer roads to maximise throughput of car traffic or facilitate access via a variety of modes.

The table below compares how well various access measures assist the passenger cross a road to reach a stop. Assessment criteria included waiting time, whether guaranteed access is provided (a roundabout or an unsignalised road that offers an indefinite stream of unbroken cars does not, for example) and cost.

While each method has its strengths and weaknesses, the humble zebra crossing stands out as the highest and best means of pedestrian access. They are also very cheap to build. I would go so far to nominate the zebra crossing as road transport’s most civisised invention.

How did I reach the three criteria?

Firstly access time. A critical part of making public transport more attractive is speeding random-arrival end-to-end travel times. Along with bus or tram priority, out of vehicle components of travel time are the easiest and cheapest to improve through attention to co-ordinated timetabling, service frequency, easier interchange and pedestrian access.

Then there’s the measure of whether guaranteed access is provided. This affects all walking trips but is particularly critical for access to public transport due to its reliance on timetables and the large time consequences (up to an hour) if a service is missed. Unlike signalised intersections, underpasses and zebra crossings, busy roundabouts or unsignalised intersections with continually flowing traffic offer no such guarantees so are major barriers to pedestrian movement.

Lastly there is cost, for which I make no apology in including. Especially in a dispersed city with thousands of intersections, a large number of low-cost improvements would probably benefit more people than a few very expensive projects. For example, 100 new zebra crossings may be possible for the cost of a single elaborate pedestrian bridge, while for motorists there are similar trade-offs between new road/rail grade seperations (cheaper) versus new bypasses or freeways (more expensive). Bus/tram priority at intersections and roundabout removals are similar low cost/high gain projects.

Zebra crossings have another virtue in that they only slow road traffic when used. Due to this and their low construction cost it is best to err on the side of too many zebra crossings than too few. And what some may see as too many assists walkability as it makes a neighbourhood more permeable on foot.

If a new crossing is so heavily used that motor traffic is significantly delayed, it should not be condemned. Rather it is evidence that it filled a previous unmet access need and has encouraged people to walk rather than drive for short trips. Most people are pragmatic rather than ideological in their transport choices, so an improvement in walking access should result in more walking.

Zebra crossings undoubtedly have their detractors.

Busy crossings may be seen as impediments to motorists, much like pedestrians see roundabouts, freeways and long ramps to overpasses. For they, along with traffic calming and even some road rules, challenge the doctrine of the ‘open road’, a presumptuous and romantic relic from early last century’s gentleman motorists and their clubs.

Mid last century’s ‘scientific’ traffic engineers also had little time for the zebra crossing due to their ‘inefficient’ obstruction of car traffic. Grade seperating various road users became the fashion. Trams were to be dismantled or buried, cars kept at level and pedestrians confined to overpasses in various proposals for central Melbourne (including from the RACV). 1950s futurist images often showed a fourth level; a swarm of commuters in helicopters.

While private motoring took off, mass grade seperations in our city centres did not. Costs were prohibitive. Road – road and road – rail seperations in established areas often cause overshadowing and urban blight, with Sunshine, Oakleigh and Huntingdale being prominent Melbourne examples.

The closing decades of the 1900s was marked by a reaction against the traffic engineer’s dominance of city planning. Examples include the 1970s freeway revolts and 1990s ‘new urbanism’ movements. Urban amenity was considered sufficiently important for the King Street bridge in Melbourne’s CBD to be removed and levelled, while pedestrian access to Southbank was improved as part if its redevelopment.

Environmental, security and physical benefits are often-cited advantages of more people walking more often. However in daily life these ‘warm and fuzzy’ factors are unlikely to influence behaviour beyond the minority who think strongly about these things.

Much greater success is likely if walking becomes attractive to the ‘transport pragmatists’ who will use whichever mode best suits the trip at hand. It is here that road transport’s most civilised invention may have benefits disproportionate to its small cost.

Saturday, December 04, 2010

After the Election

Last Saturday Victorians voted for a change of government. Below are a few observations on the campaign and the challenges facing the new government.

Rail’s rise

Public transport was prominent in the campaign, with the main topics being railway service delivery, security and staffing. Feasability studies for new lines and revised arrangements for service planning were also on the agenda. On election night the Opposition’s David Davis said that passenger discontent contributed to victories in Bentleigh, Mordialloc, Carrum and Frankston, all on Melbourne’s least punctual rail line. In contrast, buses hardly figured, except as alternatives to a Mernda railway.

Transport plans reflect rail’s growth in political importance. The 2006 ‘Meeting our Transport Challenges’ was largely about buses, especially upgraded local services and new SmartBus routes. Whereas the 2008 Victorian Transport Plan was basically a road and rail infrastructure plan, proposing the Regional Rail Link and Melbourne Metro projects.

Successive ministers heaped blame for disruptions on the rail operator. The former premier promised ‘improvements from Day One’ when the new franchise operators took over last year. Politically this hurt more than Bob Hawke's famous 'by 1990, no Australian child will be living in poverty' promise. Labor learned the hard way that the railway is a fragile and fractious beast whose reliability reflects past maintenance, errant car drivers and straying pedestrians more than political niceties. After a brief honeymoon, the new government, with its 'fix it' mandate, will be held to account as surely as the previously one was.

Quiet on the buses

In its last term the defeated Labor government made buses run on Sundays and after 7pm but failed to remind voters of this gain. The consensus on both sides was that buses were not politically significant, despite their extensive coverage. Accordingly the major parties promised either no or minor improvements for buses. This is one of those cases where the past record exceeded the promises; 2010 saw a record number of SmartBus routes added to the network.

The key message for those wanting better buses in 2011 is that most if not all improvements must be cost-neutral. In other words nothing much will happen unless resources can be found by withdrawing or shortening existing routes.

The choice is between a passive approach to bus service planning and few improvements, or a more active approach (including deleting or reducing services on some routes if necessary) and freeing resources for a more important route. After some time where the pursuit of economy was laid aside, transport planners will need to reacquaint themselves with concepts such as ‘opportunty cost’ and the sometimes unpleasant job of rationalising redundant services for a greater good.

All this is a big change from 2006 – 2010 where there was significant new money for bus service upgrades. Planning efficiency probably suffered because services tended to be boosted before being reviewed. And there was sometimes a reluctance to rationalise services, even when overlapped by new routes. Bus reviews came later, but by then funding had run out for wholesale implementation, especially in established areas.

Getting along on the roads

The relationship between road users was an issue in certain seats. Inner-city Liberals campaigned against extended clearway hours on roads served by trams. Clearways sped traffic flow but were vocally opposed by shopkeepers.

Bus lanes on Stud Road were also topical in the electorally critical south-east. These were seen as taking space from motorists and giving them to buses. Bus lanes can be deceptive – a relatively quiet bus lane can carry as many people as a lane full of single occupant vehicles. Nevertheless to moderate community opposition they need to be seen to be used, and this may require a more intensive service than currently runs.

Governance

First the Greens, then the Liberals. Both advocated some form of public transport authority. Labor saw no need, citing the existing functions of the Department of Transport and operators. Whether something gets done (eg bus-train co-ordination) is more important than who does it.

Tuesday, November 02, 2010

Transport safety videos over the years

A selection of sometimes hard-hitting, sometimes entertaining clips with a serious message.

2010

2009

2000s?

1992

1984

1970

1948

Monday, February 08, 2010

Two items about service planning

1. Transport revolution to get city moving foreshadows a plan to rethink road space to more efficiently move people and goods on existing roads. It could also be of interest if it applies a 'network thinking' approach to roads, as it may provide useful insights for public transport planning as well.

Until this latest document comes out, it might be worth looking at 2007's Guidelines for Network Operations Planning provided via the City of Stonnington website for some background.

2. Another good read is the TCRP Scheduling Manual. Produced for the US Transportation Research Board, the research for it was led by an Australian, Phillip Boyle. Phillip will be known to those who attended the recent Melbourne bus review workshops in some areas. If you're short of time, just read Chapter 3 for a good 'how to' introduction to scheduling.

Wednesday, January 06, 2010

All Change, All Change, All Change!

A short movie showing rail replacement bus operations between Blackburn and Mitcham due to the road-rail grade seperation project at Nunawading. This state and federal government funded project will sink the railway line, remove the level crossing at Springvale Road and replace the railway station at Nunawading, in Melbourne's eastern suburbs. Some views of the new station are also shown.

Wednesday, February 04, 2009

Stimulating public transport

This week the Prime Minister announced billions of dollars in cash handouts and funding for various projects to 'stimulate the economy'. The object appears to be, in Keynes style, to get people spending and thus retain jobs. There are some things like home insulation subsidies, road blackspot fixes and community facilities that might benefit. However the spirit of the personal handouts appears to be that it matters less where the money goes than if it ends up being spent. Besides most of those working aren't too badly off at the moment; lower interest rates and lower petrol prices are bringing relief to the key outer suburban 'mortgage belt' electorates.

But what if you had a stimulus package to spend on public transport? What sort of things would be in it, and what would be missed? Given the emphasis is on short-term spending on quick projects, very large rail and road projects would not be included. And though highly desirable, and necessary to maximise use of public transport infrastructure, off-peak and shoulder-peak service frequency increases involves some recurring funding so might not be sustainable if funded by a one-off 'stimulus measure'. Hence while important, they won't qualify for money from this particular bucket.

So having excluded them, here's my list of top five transport projects that would deliver lasting benefits from stimulus money.

1. Small scale pedestrian access improvements. Each metropolitan municipality might have an average of 50-100 such projects, which might include zebra crossings, underpasses, traffic islands, roadworks, roundabout conversion to traffic lights, cycle modification, etc. These would be focused around shopping centres, bus stops and railway stations, and also larger roads where there are long intervals between safe crossing points.

2. 1000 kilometres of new cycleway to form a new city-wide network, including grade-seperation with roads on major routes. This rate of construction is several times that which currently occurs.

3. Modification of suburban streets in transit-hostile neighbourhoods. This might include widenings (to permit bus movements), modified roundabouts (to permit buses), opening of culs-de-sac (to permit more direct bus, cycle and pedestrian movement) and new pedestrian and bicycle bridges over rivers and creeks between suburbs. The latter would expand the pedsheds of bus stops and railway stations and reduce backtracking. On larger roads, minor works to assist bus and tram movement could also be done, perhaps complementing the worthwhile 'blackspot' program.

4. An expansion of passenger information, with bus information at railway stations and general information in 'main streets' off the system. Travelsmart-style maps at interchanges and in public places would also identify key walking and cycling routes.

5. A program of works to improve train reliability and make the currently fragile network more robust. This might include projects such as accelerated concrete sleepering, better security for often vandalised trains, lightning protection of vulnurable signal boxes, track duplications, communication improvements and more.

A veritable shopping list for sure, but doing them would kill two birds with one stone; 'stimulate the economy' and deliver improvements of enduring value. At least the higher taxes we'll have to pay in the future to support increased public debt will have had something to show for it in this period of building.

Wednesday, January 14, 2009

Must there always be a 'bad side'?

Go to almost any rail-based retail strip in Melbourne and you'll find a 'good side' and a 'blighted side'.

The good side has the busy shops; the bad side has the empty shops, derelict buildings, tattoo parlours, pawnbrokers, sex shops, secondhand dealers and other low-rent and marginal uses.

The reason is visibility and pedestrian access. A thriving retail shopping strip caters to many needs and tastes. You won't want to go into every shop, but if there's one across the road that grabs you, one expects to be able to walk directly to it and be inside within 20 or 30 seconds. Poor visibility, waiting or backtracking kills the shopping experience and reduces customer count and sales. This is because the number of shops one can impulsively entered in a 30 minute visit to the strip is reduced. If people can't get adequate and accessible variety they they'll go elsewhere (eg a large shopping centre where the traffic problems are left outside in the car park).

This goes some way to explain why shopping strips based around or near traffic sewers (North Road Ormond or South Road Moorabbin) are failures, while those based around smaller streets (Puckle Street Moonee Ponds or Koornang Road Carnegie) are successes. And along the same street, eg High Street Preston, those sections with closer intervals between pedestrian signals win more shoppers than those that don't.

Nevertheless traffic along a shopping street (or more precisely long gaps between pedestrian crossings and long cycles for those that exist) isn't the only enemy of easy access to shops. Railway lines or major highways, running across a shopping street can divide an area, reducing visibility and/or access. Shops require much closer links between them than do houses; customers often go from shop to shop, but people seldom go from house to house in a street. Not only does visibility have to be good, but retail shops need to be almost adjoining and on the same level to maintain interest and encourage the shopper to 'drop in'.

Anything like a major highway or railway line violates the need for good sight and quick access and condemns the less favoured half of the shopping strip to decline (*). An underpass helps, but not if it is indirect and results in extra walking (as many low-grade DDA-compliant ones can be). Overpasses have similar problems. Even the 'cage' appearance of at-grade gates or booms reduces sightlines, even though in 80% of cases these won't be closed and access is faster than the perception of same.

What about grade seperation of road and rail? Local retailers appear to like this and think it will fix all their problems. While there may be other benefits of grade seperation, fixing a divided retail strip is not necessarily one of them. Indeed it could make matters worse; making a two dimensional problem into a three dimensional problem, further 'killing off' the less favoured side.

Oakleigh, Huntingdale, Sunshine and Richmond station grade seperations are all failures from an urban amenity standpoint. All have caused or encouraged significant urban blight in the overpasses' shadow. Even Elsternwick, which I have praised before, has it's 'bad side' of the line, as Reuben points out (and it was that post which encouraged this one).

If grade seperations aren't the cure for divided shopping strips, what is? I don't think there is one given the clear sightlines and continuous access required within a shopping strip for it to function as a whole. In this case it might be better to admit defeat and rezone the 'blighted sides' of shopping strips from 'retail' to 'residential - high density' with mixed uses also permitted.

This has a number of benefits. For a start it increases the pedshed of the railway station and local shopping strip, generating custom for both. While residents of this area will need to cross the railway or road to reach the shops this is acceptable since once over the line access between all shops in the strip will be good. Urban blight will be minimised since the retail strip will no longer be divided and there will be increased pedestrian traffic from local residents. And if the strip needs to be expanded, some houses could be rezoned mixed use or commercial towards the unblocked end of the strip.

(*) Reservoir seems to be one exception - with two active shopping strips on both sides of the railway.

Thursday, January 01, 2009

Happy New Year!

Best wishes for 2009 to all readers and contributors.

Public transport was never far from the news with three major themes dominating the headlines in 2008. Major themes for the year were trains, ticketing and transport plans.

A patronage boom tested the limits of a fragile train system with longer trains and revised timetables providing some relief in 2008. Other ideas to 'ease the crush' included free 'early bird' travel, a short-lived bicycle ban and plans to remove seats from carriages to increase standing room.

Ticketing items mainly dealt with the myki smartcard system, which first saw public use in Geelong. Marketing to promote 'bulk purchase' and 'weekend saver' travel continued, while more people got free Sunday travel through the broadened 'Sunday Pass'. Restrictions for seniors and periodical ticket holders were proposed but withdrawn before the effectivness date. Hence, unlike 2008's taxi driver protest, we were spared the sight of topless seniors in the streets.

Discussion about transport planning was largely in the context of Sir Rod Eddington's East-West Needs Assessment, which recommended road and rail tunnels linking east and west. The peak capacity of the rail network was a major point of contention with operators, academics, activists and gunzels debating the extent to which existing infrastructure can reliably accommodate the pathways needed for extra services. The Government responded with the Victorian Transport Plan. This multi-billion dollar long-term plan took up many Eddington recommendations but the major projects will require federal government funding.

To the above 'big three' should be added several topics of local or regional importance during 2008. In the inner suburbs rising traffic is reducing the efficiency and deliverable frequency of tram services year by year. Extended 'Clearways' have sought to provide relief, but not without opposition from local traders.

Further out, buses were the focus, with one major new SmartBus route introduced, continued 'minimum standards' upgrades to local routes and a boosted NightRider network with a doubled service frequency. Local bus service reviews continued with their consultations, meetings and submissions. The earlier reviews had their reports published and some of their less radical recommendations implemented during 2008. December 25, 2008 was the first Christmas ever where the number of local bus routes running exceded 150; a far cry from (maybe) 20 or 30 a few years ago.

Outside Melbourne regional buses received attention with revised timetables in some major centres. Less populous regions also got new or augmented community-style buses run by a local operator under DoT's 'Transport Connections' Program. These generally run a few times a week but provide access to the nearest major centre for country residents.

What's in line for 2009? (Advertisement)

With a three-car consist comprising one 'M' unit and two 'T' units, this flexible all-terrain vehicle is the future for passenger transport in 2009. Styled like the latest European trains it has straight polished metal sides. It also featurs round portholes to convey a luxury liner-style travel experience. Hence it should satisfy those who ask for cross-bay commuter ferries.

Just photographed at a secret depot in Western Victoria, an earlier model featured in a recent Connex advertisement. Enhancements now include fast army-style rear-door loading and quality-assured braking (see rego plate). No sticky overheads are required as the unit is self-powered. Also available in 3'6", 4'8 1/2" & 5'3" flanged wheel models, this vehicle is a must for the quality government or private operator.

I'll refrain from making any serious predictions for public transport in 2009 as it's much easier to be wrong than right. Besides there's no money in it in the slim chance the forecasts prove true. But if you wish to have a go at guessing what the year will bring, feel free to leave them in the comments below.

Thursday, December 18, 2008

Walking's slower in the west

If you reckon walking's faster in the middle and eastern parts of the CBD than in the west you're not mistaken. As the figures below demonstrate long light cycles and the lack of or closure of station subways shrinks pedsheds and lengthens access times in the west.

Station entrances that allow access over or under major road

Southern Cross: 0 (since subway under Spencer St closed)
Flagstaff: 1 (under Latrobe St)
Melbourne Central: 1 (under Latrobe St)
Parliament: 4 (entrances at Nicholson, Bourke, Collins, Macarthur St)
Flinders Street: 1 (under Flinders St)

Source: Melway Map 1A & 1B

Traffic light cycle times
intersections with Bourke Street, walking from west to east

Spencer St(120s)|King St(120s)|William St(90s)

Queen St (90s) | Eliz St (75s) | Swanston St (60s)

Friday, December 05, 2008

34.8km/h: not too bad

Today's Herald Sun is reporting Vicroads figures stating that average morning peak hour travel speed has fallen to 34.8 km/h. This is a decline from 37.5km/h in 1999/2000. The tone of the article was generally critical of the government for 'not doing enough to fix road bottlenecks' and complaining that 'drivers were spending more hours per year getting to work'.

What the article does not do is compare the 34.8km/h average speed with the situation in other cities or with alternatives such as public transport. If it did it might find that 34.8km/h in a large city might still be rather fast.

Let's look at other cities. Generally CBD traffic is slower than suburban traffic, and definitions of cities and urban boundaries around the world vary. But here's a few examples from around the world:

* Los Angeles (highway speeds as low as 5 or 10 miles/hr)
* Dublin (average 13km/h)
* Various UK cities (We're faster than London, faster than Bristol and comparable with Birmingham) Average for English urban centres approx 15-20 mph
* Sydney (22km/h on major roads - article from Herald Sun's Sydney sister
* Perth 30km/h on Mitchell Freeway

The quick survey above is not definitive, but compared with those places, our 34.8km/h (21 mph) does not compare unfavourably.

What about public transport? Travel speeds vary greatly, so here's a 'basket' of trips to provide a range. The Metlink journey planner was used to calculate travel times, selecting the quickest trip departing the origin around 8:00am. Distances are approximate. Waiting times are not included, but neither were parking times in the driving speed statistics reported above.

* 50 Jukes Rd (Fawkner) to Broadmeadows Town Park: 8km @ 55 min = 9km/h
* Durham Rd/Glengala Rd (Sunshine West) to Victoria University Ballarat Rd (Footscray): 10km @ 45 min = 13 km/h
* Glendale St/Whitehorse Rd (Nunawading) to Doncaster Shoppingtown: 10km @ 40 min = 15km/h
* Pascoe Vale Rd (Oak Park) to Melbourne Exhibition & Convention Centre (Southbank): 17km @ 1hr:08 = 15km/h
* 1000 Glenhuntly Rd (Caulfield South) to 600 St Kilda Rd: 8km @ 31 min = 16km/h
* Tooronga Rd/High St (Glen Iris) to Monash University (Clayton): 14km @ 52 min = 16 km/h
* Beach St/Dandenong Rd West (Frankston) to State Library (City): 40km @ 1hr:06 = 36km/h

Looking at these trip times, it is difficult to achieve a travel speed of more than 20km/h by public transport. For these transit passengers, a 34.8km/h average travel speed would halve commute times and seem in the realm of fantasy.

Public transport at its best (eg frequent express trains) can exceed the average peak driving time, as the Frankston example shows. The gap in favour of public transport may be even wider if 'to CBD' roads move slower than the 35km/h average. However as soon as either the origin or destination ceases to be almost next door to the station or a transfer is involved, travel speeds might fall by a third or more and driving becomes faster.

To summarise, Melbourne's 34.8km/h average morning peak road traffic speed is not necessarily slower than elsewhere and is about twice the speed of public transport for all but direct train trips. Contrary to the Herald Sun article, maybe our drivers don't have it too bad after all!

Monday, December 01, 2008

More from the Pedshed Series: Pedestrian and transit access around intersections

The areas around intersections are hotly contested on the road network. Frequently public transport comes off second best, with bus stops and pedestrian crossings planned or moved mid-block to add more lanes or room for turning cars.

The video below looks at the corner of Springvale Rd and Wells Rd in Chelsea Heights. This intersection is 30 kilometres south of Melbourne at the start of one of Melbourne's busiest roads. Topics covered include provision of footpaths, traffic lights versus roundabouts, location of bus stops and access to major trip and job generators.

Wednesday, November 19, 2008

Transport: Visions for a Sustainable Future

Held in the ironically-named 'BMW Edge' at Federation Square earlier tonight this gathering attended by about 400 provided a stage for various academics and lobbyists to say their bit on transport. Thanks to Transport Textbook for the notice.

Here's a quick summary from each of the speakers:

William Mitchell (MIT Design Lab) advocated electric micro-cars aimed to satisfy last-mile 'mobility on demand' that existing bus services generally do not.

Like Flexicar they turn car ownership on its head, with 'swipe and drive' one-way rental replacing full-time ownership. They provide an intermediate position between no and full car ownership. Stackable like shopping trolleys with kerbside recharging depots dotted around the inner suburbs and near railway stations. Unlike Flexicar (which uses standard vehicles) their small size means that they're less useful for some errands that can't be done with public transport such as large-scale grocery shopping and bulky retail.

Rob Adams (City of Melbourne): Argued that nearly all non-housing infrastructure we'll have in 2020 is already built and we can't build our way out of congestion.

Blames the early 20th century Garden City Movement and later motorisation for our low densities which he says are unaffordable. Strongly advocates high housing densities (4-8 storeys) along every major road within about 20 kilometres of Melbourne CBD; this could accommodate an extra 2 million people within the existing urbanised area. These corridors would be served by trams or frequent buses. Housing in between these corridors (about 90% of the urban area) would be at existing densities but 'greener'. Cities such as Barcelona and Curitiba provided examples.

Like other speakers, high density was considered essential due to a claimed relationship between it and good public transport (similar to Newman/Kenworthy). Having single-family houses on tramlines (a common sight 5 - 10km from Melbourne) was considered a waste that this reurbanisation would address and bring more people closer to public transport.

Dr Jago Dodson (Griffith Uni) introduced us to his mapping work comparing fuel dependency with suburban location, transport infrastructure and incomes (called VIPER). When interest rates and fuel prices rose in 2007 the study got an M (for mortgage) and became VAMPIRE.

As would be expected, the lower income outer suburbs had the biggest susceptibility to fuel price increases due to more widely spaced services, poorer walkability and less public transport. Conversely the posh inner suburbs had high incomes, better public transport, lower car usage and thus high resilience to oil price hikes. Hence we had an urban structure that conspired to increase inequalities as cities grew larger and fuel prices rose. While he did not advocate a government housing program he did mention that private developers tended to seek highest returns by developing in (dear) inner city areas instead of outer areas (I assume this referred to unit development; there are plenty of private housing estates on the fringes).

Not mentioned tonight were two points; that mortgage holders are generally not the lowest income earners (most of these rent) and that the outer suburbs can be quite diverse and include high-service nodes such as central Werribee, Frankston and Dandenong where people can live without a car. Comparison between residents very close to those centres and those further afield (but in the same suburb) would have been interesting.

Dr Jago was a Melbourne 2030 skeptic for a couple reasons. Most activity centres are in the inner suburbs therefore they perpetuate existing inequalities, and much high-density development is of low quality and poor energy efficiency (which might even offset saving from reduced car use). A critic of large infrastructure projects, he saw planning, co-ordination and service as important and supported high-frequency buses. He also preferred local road/rail seperations to mega-projects such as road tunnels.

Nicholas Low (GAMUT) started off with a shopping list of transport projects that he claimed were to be in the Premier's transport statement next month. His particular list included: Tarneit railway line to Southern Cross, extension to South Morang, electrification to Melton, what was called Mees-style trains through central Melbourne, 100 new buses, Doncaster and SmartBus improvements, bike paths. Plus road projects like the Frankston bypass (already announced), Greensborough - Eastlink freeway and half the Eddington road tunnel (Sunshine to Citylink via Tottenham, Kingsville and Seddon).

Prof Low saw this list as being biased too heavily towards roads. Instead he (like Prof Currie but unlike Prof Mees) advocated Eddington's rail tunnel plus rail lines to Doncaster and Rowville. This could help stem car use in Melbourne, which had recently outstripped Perth (in average kilometres driven per year). He stated his opposition to the plan (before it has come out), instead favouring a 'no new roads' policy and bigger cuts to carbon emissions (350ppm suggested).

Cath Smith (VCOSS), like the previous speakers mentioned how lucky she was to live in a bikable inner city neighbourhood with trams, trains and buses. However with high rents and property prices such living was less available and affordable.

VCOSS' constituents comprise many who don't drive, the disabled, pensioners and the unemployed. While train crowding was important, it was clear that VCOSS' priorities were elsewhere, especially with regard to co-ordinating community transport, integrating country school buses and, in Melbourne, local bus route coverage. Industrial estates have no or little public transport and apprentices in particular can find jobs difficult to reach due to 'historical' bus routes that skip job growth areas. As with prevous speakers, the interplay between housing, jobs, transport, education and services was mentioned.

Faster DDA roll-out and higher multi-purpose taxi funding was advocated (the ministerial announcement today was praised) as well as minimum frequencies for buses. Every 30 minutes seven days a week was proposed; while this is a doubling of the existing MOTC safety net, it still may not necessarily guarantee connectivity with trains.

On the environment the point was made that transport modal shift was the key to carbon reductions, not more efficient cars. This was contradicted by Robin Batterham who said that our car fleet (amongst the least efficient in the world) could double its efficiency to European standards if only regulation was applied.

After the main speakers were two respondents; Robin Batterham (former Chief Scientist) and David Ettershank (Kensington resident and, like other speakers a self-confessed 'inner-city elite member of the chattering class').

Robin Batternham drew several threads together and saw a general consensus (at least amongst those there, an important qualification given the non-representative speakers and audience). These included support for higher density and a belief that (pace Mees) it is necessary for good public transport. This can be made to happen politically if those in power are convinced of sufficient support.

David Ettershank carried the political theme further. He claimed that the Labor Party was abandoning the inner-city (Andre Haermeyer was mentioned), and that ALP focus groups have such a construct called 'Cranbourne Man' (who always wants more roads), as well as a 'Shepperton Man' (who was not explained) to draft policy.

Questions from the audience were about housing, train over-crowding and one from left-field apparently advocating a high-speed ferry to Hobart. Jago Dodson said good houses cost no more than bad houses and all should have 6-7 stars (in energy rating). Nick Low said that more trains were needed, but we also needed more train paths as well so they could run. Rob Adams said that train infrastructure had long lead times and 100 'green' buses could be put on special bus lanes on major roads overnight. A Vicroads employee suggested an intermediate road network for human-powered and low-powered vehicles. Such a metro-wide network would cost about the same as a single freeway and overcome the main impediment to cycling - safety and cars. However one of the panel suggested kerbside lanes on all roads would be cheaper and provide a more extensive network.

Overall it was an interesting session, albeit predictable given the narrow inner-city pro-density panel. The attendance of 400 (estimated) indicates extreme interest in transport and city policy.

Monday, October 06, 2008

The Pedshed Series (even more)

The concept here is of a 'Footpath Freeway'. Aim is an engineered path to permit high throughputs of people, while providing safety for for slower walkers and those who need to stop.