Thursday, March 6, 2014

Landscape PLANNING Part 3

landscaping idea
Grenspace planning and management

British public parks resemble a 1960s nationalized industry. They suffer from:
bureaucratized management
falling consumer appeal
insensitivity to users
under-investment
bad planning
bad design
no data

So what can be done?
The first requirement is data. It needs to relate to each park and to include information on user numbers, landscape quality (scenic, historic, ecological
etc), management expenditure and capital expenditure.
The data should be entered in a Geographical Information System (GIS), analysed in different ways and used to guide planning, design and management decisions.
Users must become involved in park management. This can happen in many different ways, according to the characteristics of the park: user groups, sponsorship,
consultative committees, trust ownership, user involvement in maintnenace work.
Parks should be diversified, according to the characteristics of the local environment, the ways in which users want to use the space and the resources
which can be obtained.

Public Parks: from monoculture to multi-culture

Tom Turner (as published in Local Government News 1998)

Park development is an aspect of property development. It differs only in that the land tends to be un-roofed and in public ownership. The same principles
apply to making or re-making an urban park as to other types of property development. They are generally listed as:
Location
Location
Location

These principles are put to work when, for example, a supermarket chain obtains land for a new store or re-develops an existing store. Commercial planners
analyse supply and demand. For example:
Retail Analysis is used to learn about the current availability of goods in the locality.
Postcode Analysis is used to determine the characteristics of the local market.
Origin and Destination Analysis is used to predict how customers will reach the store.

Regrettably, the same level of expertise is not applied to the planning and management of public open space in urban areas. Leisure Services Departments
are not good at working with Town and Country Planning Departments. The situation in Britains parks, in 1999, compares to that of a badly run nationalised
industry in 1959. Our parks suffer from under-investment, falling consumer appeal and a management approach which appears rigid and out of touch. Management
lacks data. This matters ten times more than a lack of cash. But take heart. In the last 5 years most local authorities have acquired the computer software
which supermarkets use for retail planning: GIS.

Currently, the main uses for GIS in local government are map management, holding records of planning applications and the managing public open space maintenance
contracts. Since the hardware, the software and the map data have been purchased, there is a great opportunity to used GIS techniques to manage the data
required for public parks. Two types of data are necessary: about demand and about supply.

Demand Analysis can be conducted by means of social surveys and Postcode Analysis. Postcode Data is available from market research firms, at a price, or
free over the internet from http://www.upmystreet.com. The data is aimed at house buyers but it provides an overview of the socio-economic groups in a
parks catchment. Some of the other data which might be used is shown on the Public Open Space Planning Chart (Fig 1). Amongst other indicators, the chart
uses BBC Radio stations to characterise cultural groupings. A Radio 4 park, for example, might have demonstration gardens and text panels explaining what
can be seen. A Radio 1 park would have ephemeral displays and venues for popular sports.

Supply Analysis requires surveys of existing public open spaces in a municipality. According to a recent report on Public Open Space Planning and Management
with GIS, the most important measures are use intensity, maintenance expenditure, scenic quality, nature conservation quality and historic quality. Comparative
data should be assembled and entered in the GIS. This will provide management with the information which is necessary for effective decision making (Fig
2). It might be found, for example, that Park A has high use intensity and low scenic quality, while Park B has low use intensity but a high maintenance
cost. This could lead to a well founded policy of increasing the nature conservation value of Park B, by shifting from amenity management to habitat creation,
and of increasing the scenic quality of Park A by investing in capital works.

Taking an overview of the parks in a locality will facilitate a shift away from monoculture. It is as bad for the urban landscape as it is for the farmed
landscape. We need a great diversity in open space types and in management methods. This could produce specialist parks to reflect the nature of late-twentieth
century society. We have a surfeit of semi-Victorian parks with playing fields, shrubberies, bandstands, childrens play areas, kidney-shaped ponds and
drab bedding. Our heritage of Green Parks can be supplemented with Pocket Parks, Nature Parks, Food Parks, Red Parks, Blue Parks, Yellow Parks, White Parks,
Age Parks, Political Parks, Ethnic Parks, Flood Parks, Air Conditioning Parks, Museum Parks, Art Parks, Religious Parks and Radios 1 to 5 Parks. But no
decisions should be made until the necessary management information has been assembled.

Captions:

Fig 1 Parks should be diversified. This park planning chart shows a range of options. One set of choices has been ringed, for an urban fringe park.

Fig 2 The cover of Public Open Space Planning and Management with GIS shows a set of diversified parks, interlinked with equally diversified greenways.

Planning the landscape and environmental impact of water storage reservoirs

Many people prefer to live, and enjoy their leisure, beside water. An EID approach to reservoir land could provide many opportunities. Rivers and sea coasts
accommodate visitors during holiday periods, but reservoirs are likely to be near urban concentrations, and their potential for uses in addition to water
supply should be fully developed. Since only a few of these uses can be anticipated when the reservoir is planned, it is necessary to carry out periodic
landscape studies of existing reservoirs. They are a huge man-made resource. The greatest development opportunity in East London is shut away behind the
3m concrete fences of the Lea Valley Regional Park. Investors might like to buy the water companys stock with a view to stripping out their underused
assets.
Old reservoirs have new capabilities
Gathering grounds are a historic example of single-purposism.
Water recreation 1948-1981: Too little and too late.
Water recreation since 1976: The new danger is excess recreational development.
The drawdown problem: It is not a problem.
Reservoir planning: Reservoirs could become urban development zones.
Planning principles: Reservoirs should develop in the context of landscape plans.
Reservoir archetypes: Archetypes are useful in reservoir planning. (Wild reservoirs, Agricultural reservoirs, Urban reservoirs, New town reservoirs)
Reservoir parks: Water is inherently beautiful and desirable.
Forestry reservoirs: Reservoirs and forests can be good neighbours.
Recreation reservoirs: Not all reservoirs need be peaceful.
Childrens play reservoirs: Like drinking water, children need to be safe.
Wild life reservoirs: Reservoirs can assist in habitat creation.
Reservoir archaeology: There are few opportunities to preserve a complete village.
Conclusion The huge potential of reservoirs should be subject to regular review.

Refs

Dangerfield, B.J. 1981. Recreation: water and land. London:Institution of Water Engineers and Scientists.

Turner, T, Landscape planning and environmental impact design. London:UCL Press 1998 Chapter 5

Dam and drawdown at Bewl Bridge reservoir in Kent, England.

Reservoir Policy
Reservoirs should be planned as part of a landscape-wide development programmes for the areas in which they are set.
Since most old reservoirs were planned as exclusion zones, for now-obsolete health reasons, there is a major opportunity to develop reservoir-side land
for other purposes.
Reservoir New Towns would yield many benefits for society and rich rewards for the water companies which own the land.
Reservoirs in towns could provide a type of recreation (ie water recreation) which is much closer to the needs of our own time than traditional urban parks.

Landscape planning for floods: from river engineering to river reclamation

Where are the streams of yesteryear? Underground. (Whyte 1970: 362)

Those streams of yesteryear will have to be reclaimed. They lie imprisoned in underground culverts or restrained by concrete walls and artificial embankments.
Because wild nature is everywhere under threat, we want our rivers back. Drainage works and impermeable surfacing continue apace. Unless drastic action
is taken, all the rivers in the all the urban regions of all the industrialised countries will be lost. This drawing shows the lost rivers of London.
Flood prevention: Floods induce fear - and high expenditure.
Forest clearance: Forest clearance accentuates flooding.

A forest can absorb rainwater, like a great sponge, and help it run into the ground. This benefit is removed when the forest is removed. The current plight
of Bangladesh is a tragic example (Khalil, 1993). At one time there were great swamps and forests in the foothills of the Himalayas. Malaria kept humans
out. After the introduction of anti-malarial drugs, the forest was cleared and the rate of run-off greatly accelerated. Periodically, this causes terrible
floods and loss of life in Bangla Desh [Fig 9.2]. The developed countries which have removed their forests have also increased their liability to flooding.
Axemen have no interest in EID.
Agricultural drainage: Farm drainage accentuates flooding.
Urban drainage: Urban drainage accentuates flooding.
River works in Britain: River improvement accentuates flooding.
Present conditions: The flood problem has been accentuated.

River reclamation And he shewed me a pure river of water of life, clear as crystal, proceeding out of the throne of God and of the Lamb. (Bible Ch 22 v
1, Revelation of St John the Divine)

In the past, improving rivers meant increasing their flow capacity. In future it should refer to multi-purpose schemes designed to improve the capacity
of each river valley to function as a visual amenity, a recreation area, a fishery, a nature reserve, a water supply, a storm detention area, a drainage
network, and a movement corridor for boats, walkers, cyclists and equestrians. We are fortunate that the means have become available:
Multi-purpose planning Rivers can do more than carry water.
Managed flooding Flood risk can be managed.
Storm detention Storm water should be detained.
Rainwater infiltration Storm water should be infiltrated.
Vegetated roofs Vegetated roofs decrease flooding.
Porous pavements Porous pavements decrease flooding.
Natural riverworks Bio-engineering is better.

Robert Louis Stevenson wrote:

Dark brown is the river,
Golden is the sand.
It flows along for ever,
With trees on either hand (R L Stevenson, Where go the boats)
River control structures: River structures should serve many objectives.
Coastal defence: Coasts need landscape plans.
Conclusion We must win our rivers back.

After centuries of improving rivers and defending coasts against floods, the developed countries have given their waterfronts a military aspect, dominated
by embankments, retaining walls, and concrete ditches. A major reclamation programme is necessary to reclaim our channels, water-courses, culverts
and coastal defences. Their dignity must be restored, as streams, brooks, rivers and shores.

At some happy point in the future, it may become possible to follow the melancholy book on The lost rivers of London (Barton 1962) with a triumphalist sequel:
How we won back Londons rivers.

Links

River restoration abstracts 2000

Open Directory section on
River Restoration

Refs

Barton, N. 1962. The lost rivers of London. London:Pheonix House.

Dunne, T. & Leopold, L.B. 1978. Water in environmental planning. San Francisco: W.H. Freeman

Brookes, A. 1988. Channelized rivers: perspectives for environmental management. Chichester:John Wiley.

CIRIA 1992a. Report 124: Scope for control of urban runoff Volume 2: A review of present methods and practice. London:Construction Industry Research and
Information Service.

CIRIA 1992b. Report 124: Scope for control of urban runoff Volume 3:Guidelines London:Construction Industry Research and Information Service.

Gardiner, J.L. 1994. Sustainable development for river catchments. Water and environmental management Vol 8 No 3.

Glitz, D. 1983. Artificial channels - the ox-bow lakes of tomorrow. Garten & Landschaft. February pp 109-111.

Hall, M.J. 1984. Urban hydrology. Amsterdam Elsevier.

Nixon, M. 1966. Flood regulation and river training. In Thorn, R.B. River engineering and water conservation works. London:Butterworth.

Turner, T, Landscape planning and environmental impact design. London:UCL Press 1998 Chapter 9

The River Manzanares, in Madrid, awaits reclamation.

Rivers Policy
A major reclamation programme is necessary to reclaim our channels, water-courses, culverts and coastal defences. Their dignity must be restored,
as streams, brooks, rivers and shores.
Landscape character plans should be formulated.
Rainwater should be infiltrated near to where it falls - or else it should detained near to where it falls, and discharged slowly.
Rivers and coasts should be planned, designed and managed. In places, this will require no human intervention: the coast should be as natural as possible.
In other places, their scenic and recreational potential should be developed. Rivers and coasts have exceptional scope for contributing to a green web
of public open space.
Negative environmental impacts should be mitigated.
Positive environmental impacts should be planned and designed. Waterfront land is our most valuable land.

The concept of Relative Sustainability

To ‘sustain’ means to keep going. When a musical note is played, the meaning is unmistakable. With reference to landscape planning, it is unclear. On a
geological time scale, mountains rise and fall, species evolve and become extinct. The ant has sustained its physical form and way of life for hundreds
of millions of years. What would it mean for a human society to be sustainable? Affordability, Sustainability and Solubility have meaning only in defined
circumstances. Salt is soluble in water but not in oil. A house can be non-affordable for most of us but easily purchased from Bill Gates’ pocket money.
Sustainability makes sense only as a comparative. Labelling one city, or land use practice, ‘sustainable’ and another as ‘non-sustainable’ is meaningless.
The illustration below, reproduced from an essay on Eco-Cities in Tom Turners City as landscape illustrates the concept of relative sustainability. A
city with high inputs (of energy, food, water etc.) and high outputs (of thermal pollution, sewage, vegetable waste etc.) is less sustainable than a city
of the same size but with lower levels of input and output. This usage accords with the circumstances in which the concept of sustainability was introduced,
in the 1970s. The world was thought to be running out of resources. It hasnt happened on the input side. But rich societies’ hatred of pollution has grown
and provides a strong reason for making our towns more ‘sustainable’ in the defined sense.

Improving the relative sustainability of a city requires an evaluation of those features which affect its pattern of inputs and outputs. This is likely
to include earth, water, vegetation, building types, transport systems and spatial organisation. One can then assess the potential for change through landscape
planning. Two of the main challenges are the attainment of sustainable landscape objectives in the densely built city core, which is often historic, and
the need to engage communities in a desire for sustainable cities and the consequent changes that will ensue. The achievement of sustainability objectives,
in cities which were built on less-sustainable principles, is a complex process. The social, physical and biological systems in urban areas are as complex
as natural systems. Sustainability planners need to study, model and make proposals for the urban landscape at all scales and levels, in time and space,
and beyond the usual span of three generations.

Links

UK Green Party policy on
sustainability

Refs

Hough, M., City form and natural process Croom Helm London 1984

Porritt, J. 1984. Seeing green: the politics of ecology explained. Oxford: Blackwell.

Royal Society for the Protection of Birds, 1994 New rivers and wildlife handbook Sandy:RSPB.

Spirn, A.W. 1984. The granite garden. New York:Basic Books.

Benson, J., Roe, M., Landscape and sustainability (Spons, 2000)

Turner, T., Ecocities City as landscape (Spons, 1996)

Sustainability Policy
Relative Sustainability is a more useful concept than Absolute Sustainability.
A city with high inputs (of energy, food, water etc.) and high outputs (of thermal pollution, sewage, vegetable waste etc.) is relatively less sustainable
than a city of the same size but with lower levels of input and output.
Improving the relative sustainability of an urban landscape requires an evaluation of those features which affect the pattern of inputs and outputs. This
is likely to include earth, water, vegetation, building types, transport systems and spatial organisation. One can then assess the potential for change
through landscape planning. Two of the main challenges are the attainment of sustainable landscape objectives in the densely built city core, which is
often historic, and the need to engage communities in a desire for sustainable cities and the consequent changes that will ensue. The achievement of sustainability
objectives, in cities which were built on less-sustainable principles, is a complex process. The social, physical and biological systems in urban areas
are as complex as natural systems. Sustainability planners need to study, model and make proposals for the urban landscape at all scales and levels, in
time and space, and beyond the usual span of three generations.

Transport: from highway engineering to green planning

Transport planning has been dominated by single-purpose planners and civil engineers.

To civilise means reclaim from barbarism.This requires transport. Without it we would have no cities, no mass production, no specialisation, no journeys
to work, no tourism, no modern conveniences. Civil engineering is vital.

But the planning and design of roads, like other modes of transport, tends to become the preserve of blinkered specialists infatuated with the dream of
maximising the transport mode for which they assume responsibility. They ignore other public goods. They neglect EID.

Historic conservation Historic roads are as deserving of conservation as ancient buildings, woodlands and other landscape features.

Adaptation to context Road design must relate to its context, as must the design of buildings and other prominent structures.

Multi-mode transport We can have a far greater range of route-types than at present, and better links between transport modes.

Bridleways Roads were made for horses.

Green residential roads Houses can front onto green roads.

Urban avenues Cities can have new avenues.

Panoramic roads Driving can be a pleasure.

Leisure roads Many journeys, but few roads, are planned for leisure.

Off-roads Off-road driving is enjoyable but can be damaging.

Speed roads Speeding can be allowed in some places.

Roads in public parks They were designed for horses and should carry horses.

Railways Railways require environmental impact design.

Cycleways Cycleways can be beautiful, safe and luxurious.

Skateways Skating is fun.

Canals Canals should not belong to transport agencies.

Footways Pedestrians should be pampered.

Pedestrianisation schemes If the are to succeed, knowledge, imagination and design judgement must be employed.

Traffic calming Traffic calming is a bad name for a good idea.

Streets Bring back the street.

Transport planning Transport modes have to be integrated, with each other and with the environment.

Refs

Hass-Klau, C. 1990. The pedestrian and city traffic. London:Belhaven Press.

McClusky, J. 1979. Road form and townscape. London:Architectural Press.

Buchanan, C.D., 1963 Traffic in towns London:HMSO.

Turner, T, Landscape planning and environmental impact design. London:UCL Press 1998 Chapter 10

Green Transport Policy
Historic roads should be conserved.
Cities need experts in planning for each transport mode (train, car, bus, cycle, pedestrian, horse, skates etc) and experts in the integration of transport
modes.
Provision for cycling should receive budgetry priority.
Citizens should have access to public transport via environmentally pleasant green routes, for walking, cycling, riding, skating or canoeing. The young,
the old, the poor and the dispossessed should have access to public transport or green transport. Well-used walks should enjoy the benefit of visual policing
and should be safe from the dangers of drunk drivers, joy-riders and runaway trucks.
While waiting for a bus or train, it should be possible to sit in comfort, sometimes in the sun and amongst flowers. Coffee and newspapers should be on
sale. There should be a shelter with seats.
Road planning cannot and should not be separated from other aspects of planning. So road designers must think about pedestrians, nature reserves, water
management, recreation, architecture and the noble art of bridge design. They can learn from their medieval predecessors who understood that engineering
to be the exercise of ingenuity.
For the soul, to travel is better than to arrive.

Landscape planning for urbanisation

All the worlds cities are growing - and the quality of urban design in the new areas is deeply depressing. In large measure the problem results from entrusting
the design of each component to specialists - without any serious attention to design of the space between buildings (the outdoor landscape). Highway
engineers design roads, builders and architects design houses and apartment blocks, manufacturers design industrial sheds. Then, at the end of the day,
one might commission a gardener to green-up the space between buildings, with ghastly results. If you want your city to have good open space between buildings,
and on top of buildings, then landscape plans should precede urban development. The principle applies on greenfield sites and in urban renewal and regeneration
projects.

Manifestly, we want access to clean air, sunshine, beautiful cities, sparkling rivers, ancient woods, gathering places in which to encounter other people.
Landscape planners should focus on public goods and EID (environmental impact design). They should be plural in spirit and forward-looking in practice.
This requires knowledge and information. With clear objectives for guidance, as beacons guide ships, we can respond to contexts and prepare plans which
reflect the diverse wishes of diverse groups.

With imagination and skill, land uses can be integrated. Single-use planning is generally bad planning. It causes side-effects and public goods to be neglected,
so that the land uses fall into disfavour and then decay. In this chapter, I have aimed to take a long view of the urbanisation process. While it proceeds,
communities should found new settlements which conserve the existing landscape and create new public goods. Planning is required - but not too much of
it.

At the start of the twentieth century, when optimistic reformers first argued the case for planning, they were confident that state control would produce
a better world, with social justice, green parks, housing set apart from industry, towns ringed by fields, sunny streets, dung-free roads and hygienic
disposal of other waste products. By the end of the twentieth century, some of the dreams had been realised and others had become nightmares. The new cities
had dirty rivers, polluting roads, dreary parks, ugly scenery and dangerous footpaths. The City of Dreadful Night became the City of Dreadful Day.

Planning was part of the problem. In the Soviet Union, government planning produced grim totalitarian cities dominated by wide roads and high blocks, set
far apart. In the United States, government planning took the form of over-investment in roads, rigid land use zoning and under-investment in public space.
Western Europe compromised between these extremes, keeping its ancient town centres but surrounding them with a mix of Soviet and American planned development.

The author of Londons best plan, Patrick Abercrombie, argued that:

When two or three buildings are gathered together, there arises the question of their relationship to each other; when a road cuts across an open stretch
of country, there is its relation to the landscape; when a piece of Land is enclosed, the question of the boundary lines occurs, and the decision as to
the use to which it is put or the manner in which it is divided up. All these are examples of Town and Country Planning (Abercrombie 1959 edn: 11).

Like other modernist planners, he was too hasty in arguing from some to all. Twentieth century planning rested on an invalid argument form:

Some actions by land users affect other land users
All actions which affect other land users require planning

Therefore all actions by land users require planning

To logicians, this is known as the fallacy of the undistributed middle. I prefer the following, valid, argument:

Some actions by land users affect public goods
All actions which affect public goods require planning

Therefore some actions by landowners require planning

Landscape planning can produce settlements which are rich in public goods. We should, as Nan Fairbrother said, make new landscapes for our new lives (Fairbrother,
1970:8).
Urbanisation requires planning.
Finding a good site is the hardest task.
Settlements need parents.
Good decisions rely on good information.
Topography comes first.
Heed the wisdom of the ancients!
Parks rely on contexts.
Earthmoving provides great opportunities.
Streams should be treasured.
owns need lakes.
Towns need community forests.
Roads can spoil towns.
All public is just as bad as all private.
Planning housing areas for a single aspect of the public good tends to produce an unnacceptable degree of uniformity.
Planning commercial projects like fried eggs disregards the public good.
Noxious industries require special zones. Other types of industry do not.

Refences

Turner, T, Landscape planning and environmental impact design. London:UCL Press 1998 Chapter 11

Bacon, E.N. 1967. Design of cities. London:Thames and Hudson.

Ashihara, Y. 1983. The aesthetic townscape. Cambridge Mass:MIT Press.

Krier, R. 1979. Urban space. London:Academy Editions.

Lynch, K.1960. The image of the city. Cambridge, Mass:MIT Press.

Trancik, R. 1986 Finding lost space New York:Van Nostrand.

Whyte, W.H. 1980. The social life of small urban spaces. Washington:The Conservation Foundation, Washington.

Urbanisation Policy
Urbanisation should be preceded by landscape plans.
Manifestly, we want access to clean air, sunshine, beautiful cities, sparkling rivers, ancient woods, gathering places in which to encounter other people.
With imagination and skill, land uses can be integrated.
Communities should found new settlements which conserve the existing landscape and create new public goods. Planning is required - but not too much of it.
Landscape planning can produce settlements which are rich in public goods. We should, as Nan Fairbrother said, make new landscapes for our new lives (Fairbrother,
1970:8).

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