都市計画英語：プロフェッショナル語彙48選

"zoning ordinance"

A local law that divides a municipality into districts and specifies permitted land uses, building heights, and densities for each zone.

"The city amended its zoning ordinance to allow mixed-use development along the transit corridor."

"conditional use permit"

A zoning exception that allows a land use not normally permitted in a zone, subject to specific conditions set by the planning authority.

"The church applied for a conditional use permit to operate a weekday childcare centre in a residential zone."

"setback requirement"

A rule specifying the minimum distance a building must be placed from a property line, road, or other feature.

"The rear setback requirement of 6 metres prevented the developer from extending the building further back."

"floor area ratio"

A measure of building intensity calculated by dividing total floor area by the area of the plot; higher values indicate denser development.

"The downtown district allowed a floor area ratio of 5.0, enabling tall mixed-use towers."

"variance"

A discretionary relief from a specific zoning requirement, granted when strict application would cause undue hardship due to unique property conditions.

"The property owner sought a variance because the irregular lot shape made compliance with the side yard rule impossible."

"non-conforming use"

A land use or structure that was lawful when established but does not conform to current zoning regulations; it may continue but usually cannot be expanded.

"The auto repair shop was a non-conforming use that predated the residential rezoning by decades."

"upzoning"

A change to a zoning designation that allows greater density, height, or a wider range of land uses than the previous classification.

"Upzoning the station-area parcels from single-family to high-density residential triggered significant developer interest."

"form-based code"

A land development regulation that focuses primarily on the physical form and character of buildings and public spaces rather than on separating uses.

"The city adopted a form-based code to ensure new buildings along the high street maintained human-scale frontages."

"urban morphology"

The study of the form and structure of cities, including street patterns, block sizes, plot layouts, and building typologies.

"An urban morphology analysis revealed that the medieval street grid had survived beneath decades of redevelopment."

"streetscape"

The visual character and physical elements of a street, including buildings, trees, signage, lighting, and paving.

"The streetscape improvements — wider footpaths, cycle lanes, and new street trees — transformed the commercial high street."

"placemaking"

A collaborative process that shapes the public realm to strengthen the connection between people and the places they share, improving health and wellbeing.

"The council used placemaking principles to redesign the neglected town square into an active community hub."

"active frontage"

A building facade at street level that has doors, windows, and uses — such as shops or cafés — that generate pedestrian activity and visual interest.

"Planning policy required active frontages on the ground floors of all new buildings facing the public park."

"human scale"

A design quality where the dimensions, details, and proportions of buildings and spaces feel comfortable and appropriate relative to the human body.

"Critics argued the 50-storey tower lacked human scale and would create an intimidating canyon effect on the street below."

"mixed-use development"

A building or neighbourhood that combines residential, commercial, cultural, or institutional uses within a single structure or area.

"The mixed-use development above the new metro station included apartments, offices, a supermarket, and a community library."

"infill development"

Construction on vacant, underused, or previously developed land within an already built-up area, rather than on greenfield land at the urban fringe.

"The planning authority prioritised infill development to make use of derelict sites before permitting suburban expansion."

"public realm"

The shared outdoor and indoor spaces accessible to everyone — streets, squares, parks, and publicly accessible buildings — that form the backbone of urban life.

"Investment in the public realm, including new plazas and improved lighting, significantly increased foot traffic in the area."

"transit-oriented development"

A planning strategy that concentrates higher-density, mixed-use development around public transport nodes to reduce car dependence and maximise ridership.

"The city adopted transit-oriented development guidelines requiring a minimum of 80 dwellings per hectare within 400 metres of a rail station."

"level of service"

A grading system (A to F) used to measure the quality of traffic flow and conditions on a road or at an intersection from free flow to gridlock.

"The traffic impact assessment showed the new shopping centre would reduce the intersection's level of service from C to E at peak hours."

"modal share"

The percentage of total travel undertaken by each type of transport mode — car, bus, rail, cycling, or walking — within a defined area or corridor.

"The city's goal was to increase the cycling modal share from 8% to 25% by 2035 through infrastructure investment."

"traffic impact assessment"

A technical study examining how a proposed development will affect surrounding road networks in terms of volume, delay, and safety.

"Planning consent was conditional on the developer submitting a traffic impact assessment and funding junction improvements."

"demand management"

Policies and tools designed to reduce or redistribute transport demand, such as congestion charging, parking restrictions, or travel plans.

"The city introduced demand management measures, including a cordon charge, to reduce private car trips into the centre by 15%."

"pedestrian priority zone"

An area where pedestrian movement takes precedence over vehicles, with restricted or excluded vehicle access and redesigned public space.

"The pedestrian priority zone around the cathedral attracted more visitors and increased retail sales by 20%."

"complete streets"

A design philosophy that ensures streets are safe and accessible for all users — pedestrians, cyclists, public transport users, and motorists — of all ages and abilities.

"The complete streets policy required every road project to include protected cycle infrastructure and accessible crossing points."

"traffic calming"

Physical design measures — such as speed bumps, raised crossings, and road narrowings — that slow vehicle speeds and improve safety in residential or commercial areas.

"Traffic calming measures reduced average vehicle speeds on residential streets from 40 to 25 kilometres per hour."

"affordable housing"

Housing that costs no more than 30% of a household's gross income, typically provided through subsidies, rent control, or inclusionary zoning requirements.

"The developer was required to provide 20% affordable housing units as a condition of planning consent for the luxury apartment block."

"inclusionary zoning"

A planning requirement that mandates a proportion of new residential developments be sold or rented at below-market rates to lower-income households.

"Inclusionary zoning policies in several major cities have delivered thousands of affordable units without direct public subsidy."

"housing density"

The number of dwelling units per unit of land area, often expressed as dwellings per hectare; a key tool for managing urban growth and affordability.

"Increasing housing density near employment centres is one of the most effective ways to reduce commuting distances and housing costs."

"gentrification"

The process by which a lower-income neighbourhood attracts higher-income residents and investment, resulting in displacement of existing residents and rising costs.

"Long-term residents warned that the new cycle infrastructure, though welcome, was accelerating gentrification in the working-class neighbourhood."

"community land trust"

A non-profit organisation that acquires and holds land for the long-term benefit of a community, providing permanently affordable housing by separating land ownership from building ownership.

"The community land trust model kept home prices affordable for successive buyers by retaining ownership of the underlying land."

"neighbourhood revitalisation"

A strategy involving investment in physical, economic, and social improvements to reverse decline and improve quality of life in a distressed area.

"The neighbourhood revitalisation programme combined new housing, a community centre, and job training services in the formerly derelict quarter."

"right to buy"

A policy that gives eligible social housing tenants the legal right to purchase their home at a discount from the market price.

"Critics argued that the right to buy scheme had significantly reduced the social housing stock in high-demand areas."

"housing needs assessment"

A systematic study that identifies the quantity and type of housing required in an area over a given planning period to meet projected demand.

"The housing needs assessment projected a shortfall of 12,000 homes by 2040 if current build rates continued."

"urban heat island"

The phenomenon where built-up urban areas experience significantly higher temperatures than surrounding rural areas due to surfaces that absorb and retain heat.

"The urban heat island effect made summer temperatures in the city centre up to 5°C higher than in suburban parks."

"green infrastructure"

A network of natural and semi-natural features — parks, wetlands, street trees, and green roofs — that delivers multiple environmental and social benefits.

"The city's green infrastructure strategy added 10,000 street trees and 50 hectares of new urban wetlands to manage stormwater and cool the city."

"environmental impact assessment"

A formal process for evaluating the likely environmental effects of a proposed project or plan before it is approved.

"The environmental impact assessment identified significant risks to a protected wetland and required revised drainage proposals."

"carbon-neutral development"

A building or development that produces net zero carbon dioxide emissions through a combination of energy efficiency, renewable energy, and carbon offsetting.

"The council's planning policy required all new major developments to achieve carbon-neutral status from 2026 onward."

"sustainable drainage system"

An approach to managing surface water runoff that mimics natural processes using permeable surfaces, rain gardens, and detention basins rather than conventional drains.

"The sustainable drainage system installed across the new housing estate reduced peak stormwater discharge by 60%."

"ecological connectivity"

The degree to which landscape features allow the movement of species between habitat patches, preventing isolation and supporting biodiversity.

"The green corridor along the disused railway line restored ecological connectivity between two important nature reserves."

"climate resilience"

The capacity of an urban system to anticipate, absorb, adapt to, and recover from climate-related hazards such as flooding, extreme heat, or drought.

"The city's climate resilience plan prioritised waterfront flood defences and cool refuges in the most vulnerable neighbourhoods."

"urban forestry"

The management and cultivation of trees and forests within and around urban areas for environmental, social, and economic benefits.

"The urban forestry programme planted 5,000 trees over three years to reduce flooding, improve air quality, and lower energy costs."

"local development plan"

A statutory document produced by a local planning authority that sets out land use policies and proposals for development within its area over a plan period, typically 15–20 years.

"The council's local development plan identified three strategic housing allocations to meet projected demand over the next 20 years."

"material consideration"

A factor that is relevant and must be taken into account when a planning authority makes a decision on a planning application.

"The planning officer noted that traffic impacts, listed building character, and noise were all material considerations in the committee report."

"public consultation"

A formal process by which planning authorities and developers invite communities to comment on proposed plans, policies, or projects before final decisions are made.

"The public consultation on the new local plan attracted over 2,000 responses, revealing strong opposition to the greenfield housing allocation."

"planning permission"

The formal approval granted by a local planning authority to carry out development or to change the use of land or buildings.

"Construction cannot begin until full planning permission has been granted and all pre-commencement conditions have been discharged."

"development control"

The process by which local planning authorities assess and decide on applications for planning permission, balancing development needs with environmental and community interests.

"The development control officer recommended refusal on the grounds that the proposal was contrary to the height policy in the local plan."

"strategic environmental assessment"

A systematic process for evaluating the environmental implications of proposed plans, programmes, or policies at a strategic level, required under EU and international frameworks.

"The strategic environmental assessment of the regional transport plan identified significant air quality risks that required policy modifications."

"master plan"

A long-term planning document that provides a framework for future growth and development of a site, neighbourhood, or city, including land use, infrastructure, and phasing.

"The waterfront master plan guided 20 years of phased regeneration, transforming derelict docklands into a thriving mixed-use district."

"planning appeal"

A formal challenge by an applicant or third party to a planning decision, heard by an independent inspector or tribunal.

"After the council refused permission for a 200-unit scheme, the developer lodged a planning appeal and ultimately won approval at inquiry."