Question 9 of 10: Six Contemporary Planning Issues

Question 9: Six Contemporary Planning Issues (10 marks)

Question text not reproduced: the examination questions are © Engineers and Geoscientists BC. Open the official past paper (linked at the top of this page) to read the question, then follow the worked solution below.

(a) Solar power

Solar energy reaches planning as a set of land use and design questions rather than as an engineering one. The first is solar access: a rooftop array is a long-lived investment that a neighbouring building can render worthless, so plans increasingly protect access through solar envelope provisions, height and setback rules calibrated to winter sun angles, and shadow analysis at development approval. The second is subdivision layout, where the classic solar subdivision runs streets east–west so that lots present a long south-facing roof and wall; this costs nothing at design stage and is unobtainable afterwards. The third is land use conflict at utility scale: ground-mounted solar farms want flat, cleared, south-facing land with grid access, which is farmland, and Ontario's experience under the former feed-in tariff programme — arrays on Class 1 soils — produced a durable policy backlash. In British Columbia, ground-mount installations in the Agricultural Land Reserve require Commission approval, and agrivoltaic arrangements that keep the land in production are the emerging compromise. The fourth is the regulatory detail that determines whether rooftop solar is easy or impossible: whether panels count toward height and coverage, how they are treated in heritage conservation areas, whether the zoning by-law recognises solar as an accessory use, and whether the building code and structural allowance anticipate the load. Underlying all of it, provincial energy step codes and net-zero-ready requirements are pushing new buildings toward on-site generation, so plans should require solar-readiness — conduit, roof structure, orientation, unobstructed roof area — even where panels are not installed initially, since retrofit is many times the cost of provision. Distributed generation also defers distribution upgrades and shaves summer peak load, which is a direct municipal infrastructure benefit, and community or shared solar is the mechanism through which renters and apartment residents can participate at all.

(b) Sprawl repair

Sprawl repair is the deliberate retrofitting of the low-density, single-use, car-dependent suburbs built between roughly 1950 and 2000 into places with a centre, a mix of uses and a walkable structure. It matters because that is where most Canadians live and where most of the housing stock and most of the serviced land already is: the choice is not between suburbs and cities but between suburbs that adapt and suburbs that decline. The techniques are well established. Redevelop the parking fields — a shopping centre typically devotes sixty to seventy per cent of its site to surface parking, which is developable land inside the urban boundary requiring no new trunk servicing. Break the superblocks by driving a fine street grid through large sites, since block size determines walkability more than density does. Convert arterial strips into main streets with buildings at the sidewalk, parking behind, and transit priority in the centre lanes. Add missing-middle housing to detached tracts, and secondary suites and laneway houses to individual lots. Complete the networks: sidewalks on both sides, protected cycling on arterials, and pedestrian cut-throughs connecting the cul-de-sacs that were designed to prevent connection. The drivers are demographic as much as environmental: as household size falls, a suburb's population declines on unchanged infrastructure until the school closes and the bus route is cut, so retrofit is often what preserves the services residents already have. The obstacles are real — fragmented ownership, zoning that permits only what is already there, parking standards, servicing capacity, financing for unfamiliar product, and resident opposition — but the Canadian examples are now numerous: Surrey City Centre grew from a shopping centre site into a downtown with a university campus, city hall and residential towers; Vaughan Metropolitan Centre was built on a subway extension into a former industrial and commercial edge; Mississauga's city centre and Langford, British Columbia, are further cases.

(c) Intensification

Intensification is accommodating growth within the already-built-up area rather than by outward expansion, and it is usually measured as the share of new residential units built inside a defined built boundary. Ontario's Growth Plan is the clearest Canadian instrument, requiring a rising proportion of new units within the built boundary and setting a minimum density for designated greenfield; British Columbia has moved through mandated small-scale multi-unit permissions and minimum transit-oriented densities. The mechanisms available to a municipality are the full range: secondary suites and laneway houses, missing-middle infill, corridor and node redevelopment, brownfield and greyfield sites, and conversion of surplus institutional and commercial land. The case for it is strong and multiple: it uses infrastructure already paid for, at a per-capita servicing cost far below greenfield; it is the only way to reach the residential densities that make transit viable — roughly 30 units per net hectare for basic bus service, 45 for frequent service and 100 or more for rapid transit; it preserves agricultural and natural land; it reduces per-household transport emissions; and it supports the walkable retail and services that low densities cannot sustain. The case against it, or rather its real limits, deserves equal treatment because it is where practice fails. Older areas have finite sewer, water and school capacity, and intensification without a capacity programme produces basement flooding and portable classrooms. Parkland and tree canopy per capita fall unless land is acquired concurrently, and acquisition is most expensive exactly where intensification is greatest. Construction disruption is concentrated on existing residents. Most importantly, the redevelopment of older rental buildings displaces the tenants of the cheapest housing in the city, so intensification without tenant protection, replacement requirements and right of first refusal transfers the cost onto those least able to bear it. And intensification is a supply instrument, not an affordability instrument: it is necessary but nowhere near sufficient, and must be paired with non-market supply and tenure diversity if the affordability claim made for it is to be honest.

(d) Greyfield redevelopment

A greyfield is an economically obsolete or underperforming developed property — characteristically a dying enclosed mall or a strip plaza with a vast surface parking field — distinguished from a brownfield, which is contaminated, and a greenfield, which is undeveloped. Greyfields are the most attractive redevelopment sites in most Canadian suburbs, for reasons that are worth stating precisely. They are large and usually in single ownership, so no land assembly is required and a coherent master plan is possible. They are already serviced, with water, sewer, power and road access in place and paid for. They sit on arterial roads and often on transit, precisely where a plan wants density. They consume no agricultural or natural land. They usually have few immediately abutting residents compared with infill in an established neighbourhood — although the Question 2 scenario, with apartments, a seniors' complex, a place of worship and a high school around it, shows that this is not always so. And they can be redeveloped in phases, building on the parking field while the remaining retail continues to trade and generate income. The difficulties are equally characteristic: reciprocal access easements and exclusivity covenants from the original retail leases can bind the site for decades; an institutional owner may prefer to hold a depreciating asset rather than recognise a loss; zoning typically permits only commercial use, so a full rezoning and plan amendment is required; municipalities fear losing commercial assessment and retail land supply; the arterial context is hostile to pedestrians and must be substantially rebuilt; and a new public street network, stormwater retrofit and public realm must be created where none existed. Canadian examples are now abundant — Surrey Central, Oakridge Park in Vancouver, Galleria on the Park in Toronto, Lansdowne Park in Ottawa, Vaughan Metropolitan Centre — and the common lesson is that the projects that succeed are those in which the municipality set the street and block structure first and let the buildings follow.

(e) Ageing population

Canada passed the point at which seniors outnumbered children in 2015; roughly one Canadian in five is now 65 or over and the proportion is heading toward one in four within two decades. The distribution matters as much as the total: small towns and rural regions age fastest, because young adults leave and older adults stay or arrive, so the communities with the least service capacity face the change first. The planning consequences run through every part of a plan. Housing must offer a continuum rather than a single form — adaptation of existing homes for ageing in place, secondary suites for caregivers or for downsizing on the same lot, apartments and missing-middle housing within low-rise neighbourhoods so that people can move without leaving the community they know, and independent living, assisted living and long-term care sited near shops, transit and health services rather than on cheap land at the edge, which is where they are too often built. Mobility must accommodate the transition from driving: conventional transit within walking distance, paratransit such as HandyDART, pedestrian crossing timings set for a walking speed slower than the design default, benches and shade at intervals matched to real walking range, snow clearance treated as an accessibility service rather than a convenience, and driving-cessation planning as a normal life event rather than a crisis. Accessibility obligations under the Accessible Canada Act and provincial accessibility legislation, together with universal design and adaptable-unit requirements, apply to the public realm as much as to buildings. Services — health, home care, recreation programming, and deliberate action against social isolation, which is a measured health risk — must be planned for spatially. The World Health Organization's Age-Friendly Cities framework, adopted by a great many Canadian municipalities, is the standard organising tool. Two consequences are commonly missed: an ageing population means smaller households, so a community that is ageing needs more dwellings for the same or a falling population; and an ageing labour force constrains the workforce available to build and staff everything else the plan proposes.

(f) Active transportation

Active transportation — walking, cycling and wheeling, including mobility devices and their winter equivalents — is the mode that returns the most transportation capacity per dollar and the only one that improves health as a side effect. Its planning requirements are specific. Networks, not facilities: a route is only as useful as its worst link, so a protected lane that ends at the difficult intersection has not created a usable connection; the objective is an all-ages-and-abilities network in which an unaccompanied twelve-year-old could reach school, which is the standard that also serves everyone else. Protection and intersection design: most collisions occur at intersections, so protected intersections, daylighting and signal phasing matter more than mid-block treatment. Speed management: survival in a pedestrian collision falls sharply above 30 km/h, which is why Vision Zero programmes begin with local street speed limits. Land use: active transportation works where destinations are close, so it is inseparable from mixed use and intensification — the walk catchment of a five-minute walk is about 50 ha and of a ten-minute walk about 201 ha, and what is inside those areas determines whether walking is a mode or a recreation. Integration with transit, since almost every transit trip begins and ends on foot, and secure bicycle parking at stations extends a station's catchment several-fold. Winter maintenance, which in Canada is the difference between a network and a summer amenity, and which requires the active transportation network to be given priority-route status. End-of-trip facilities and bicycle parking requirements in the zoning by-law. Electric bicycles have materially changed the calculus by neutralising hills, distance and cargo, extending the practical cycling range across suburban Canada. The benefits are health, air quality, congestion and parking relief, greenhouse gas reduction, local retail vitality, and above all equity: roughly a third of the population does not drive — too young, too old, unable, or unable to afford it — and active transportation is the only mode available to all of them without a fare. Montreal's Réseau express vélo and BIXI, Vancouver's separated network and Mobi, Calgary's 5A network, Winnipeg's active transportation corridors and Ottawa's multi-use pathway system are the Canadian reference cases.