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Unit 1 planning c oncepts ppt

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Town Planning - Planning Concepts

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Unit 1 planning c oncepts ppt

  1. 1. TOWN PLANNING AND HUMAN SETTLEMENTS UNIT I TAMIL EZHIL G Presentation prepared as a part of lecture series Architect Planner @ School of Architecture and Interior Design, SRM University
  3. 3. FOCUS AREAS• Garden City Concept – Sir Ebenezer Howard• Geddisain Triad – Patrick Geddes• Neighbourhood Planning – C A Perry• Radburn Theory• City Beautiful• Broad Acre City – F L Wright• Satellite Town• Ribbon Development• Ekistics
  4. 4. GARDEN CITY – Sir Ebenezer Howard… • Garden City most potent planning model in Western urban planning • Created by Ebenezer Howard in 1898 to solve urban and rural problems • Source of many key planning ideas during 20th century
  5. 5. GARDEN CITY – important dates… 1850 - 1928 SIR EBENEZER HOWARD 1899 Published ‘Garden City of Tomorrow’ Garden City Association was formed 1903 LETCHWORTH was designed for 35000 persons 1920 WELWYN was designed for 40000 persons 1947 LETCHWORTH had 16000 population & 100 factories WELWYN had 18000 population & 75 factories UK – Europe – US – rest of the world
  6. 6. THE CONCEPT …• ‘Garden City’ – an impressive diagram of THE THREE MAGNETS namely the town magnet, country magnet with their advantages and disadvantages and the third magnet with attractive features of both town and country life.• Naturally people preferred the third one namely Garden City
  7. 7. THE CONCEPT… Core garden city principles  Strong community  Ordered development  Environmental quality These were to be achieved by:  Unified ownership of land to prevent individual land  speculation and maximise community benefit  Careful planning to provide generous living and  working space while maintaining natural qualities  Social mix and good community facilities  Limits to growth of each garden city  Local participation in decisions about development
  8. 8. THE CONCEPT…Affordability  Howard wanted garden city for all incomes  Most originally for those of modest incomes  Their attractiveness as living environments has often made them become more popular with better off peopleExamples of modest income garden Some garden city developments alwayscity - developments built just after WW1 intended for wealthyare commuters  Kapyla (Helsinki, Finland), Denenchofu  Colonel Light Gardens (Adelaide, (Tokyo, Japan) was an example of this, Australia) and developed by railway company  Orechovka (Prague, Czech Republic)
  9. 9. APPLICATION… • Letch worth – 35 miles from London • Land of 3822 acres • Reserved Green belt – 1300 acres • Designed for a maximum of 35000 population • In 30 years – developed with 15000 population & 150 shops, industriesLETCHWORTH , UK Health of the Country Comforts of the Town
  10. 10. APPLICATION…• Welwyn– 24 miles from London• Land of 2378 acres• Designed for a maximum of 40000 population• In 15 years – developed with 10000 population & 50 shops, industriesWELWYN ,UK
  11. 11. APPLICATION…Enskede, Stockholm, Sweden (1908-) Margarethenhohe in Essen, Germany (1908-)Chemin Vert in Reims, France
  12. 12. APPLICATION… After 1945, the garden city model was mutatedVALLINGBY, STOCKHOLM into satellite or new towns in many countries . eg in Sweden, UK or Hong Kong. MILTON KEYNES, UK SHATIN, HONG KONG
  13. 13. GEDDISIAN TRIAD – Patrick Geddes • Father of modern town planning • First to link sociological concepts into town planning • “Survey before plan” i.e. diagnosis before treatment
  14. 14. GEDDISIAN TRIAD– important dates…1854 - 1932 PATRICK GEDDES 1886 Settled in EDINBERGH 1892 Outlook tower - World’s first Sociological observatory 1911 Exhibition on Cities and Town planning Published Cities in Evolution 1915 INDIA Visited 1920 - 23 Professor of Civics and Sociology in University of Bombay 1924 Settled in Montpellier, France
  15. 15. GEDDISIAN TRIADOrganic relationship betweenSOCIAL , PHYSICAL &ECONOMICAL environment
  16. 16. Patrick Geddes – Planning concepts • Rural development, Urban Planning and City Design are not the same and adopting a common planning process is disasturous • Conurbation” -waves of population inflow to large cities, followed by overcrowding and slum formation, and then the wave of backflow – the whole process resulting in amorphous sprawl, waste, and unnecessary obsolescence.
  17. 17. Patrick Geddes – Planning concepts CONURBATION DELHI – NCR, INDIALONDON , UK
  18. 18. Patrick Geddes – Planning concepts The sequence of planning is to be: Regional survey Rural development Town planning City design These are to be kept constantly up to-date He gave his expert advice for the improvement of about 18 major towns in India.
  19. 19. Patrick Geddes – Outlook Tpwer• took over ‘Short’s Observatory’ in 1892.• spectacular views the surrounding city region.• Positioned at the top is the Camera Obscura, which refracts an image onto a white table within, for study and survey.
  20. 20. Patrick Geddes – Outlook Tpwer• a tool for regional analysis, index- museum and the ‘world’s first sociological laboratory’.• It represents the essence of Geddes’s thought - his holism, visual thinking, and commitment to understanding the city in the region.• He said of it: ‘Our greatest need today is to conceive life as a whole, to see its many sides in their proper relations, but we must have a practical as well as a philosophic interest in such an integrated view of life.• Now the tower is home to the Patrick Geddes Centre For Planning Studies, where an archive and exhibition are housed.
  21. 21. NEIGHBORHOOD UNIT The neighbourhood is the planning unit for a town. evolved due to advent of industrial the revolution and degradation of the city environment caused due to  high congestion, heavy traffic movement through the city, insecurity to school going childrens, distant location of shopping and recreation activities; etc.
  22. 22. NEIGHBORHOOD UNIT to create a safely healthy physical environment in which  children will have no traffic streets to cross on their way to school, schools which are within walking distance from home;  an environment in which women may have an easy walk to a shopping centre where they may get the daily households goods,  employed people may find convenient transportation to and from work.  well equipped playground is located near the house where children may play in safety with their friends for healthy development of their mind and spirit.
  23. 23. PRINCIPLES OF NEIGHBORHOOD UNIT Unit of Urban Planning Street System Facilities Population Sector Size and Density Neighbourhood Walkways Protective Strips
  24. 24. CLARANCE STAIN’s CONCEPTION• Walking distance radius is one mile.• In the figure A, elementary school is the centre of the unit and within a one half mile radius of all residents in the neighbourhood, local shopping centres located near the school.• Residential streets are suggested as CUL-DE-SACS to eliminate through traffic and park space flows into the neighbourhood
  26. 26. EXAMPLES…
  27. 27. EXAMPLES…
  28. 28. RADBURN’S CONCEPT" We did our best to follow "the most significant notion in 20thAristotles recommendation Century urban development“ – Anthonythat a city should be built to Baileygive its inhabitants security "Town for the Motor Age" is trulyand happiness“- Clarence Stein a "Town for Tomorrow""social planning of an advanced order.It is manipulation of physical elements the first major advance in cityto induce and encourage a social and planning since Venice - Lewis Mumfordhuman goal. It is a kind of planningwhich recognizes that the growing edgeof civilization is in the human and notthe mechanical direction, though themechanical factors must be carefullyaligned and allocated to support andadvance the communal achievementsand the social inventions of a freepeople of autonomous family life.“ –James Dahir
  29. 29. RADBURN’s Planning 1929 Radburn Created conceived by CLARANCE STEIN &25000 people HENRY WRIGHT 149 acres Factors that influenced 430 single houses  Rapid Industrialisation 90 row houses after World War I 54 semi attached houses  Migrationgrowth ofto Cities  Dramatic of Rural Cities 93 apartment units  Housing Shortage  The need to provide housing and protect from motorised traffic
  30. 30. RADBURN’s Planning – INSPIRATION…Henry Wrights "Six Planks for a Housing Platform" Plan simply, but comprehensively.  Cars must be parked and stored, Dont stop at the individual property deliveries made, waste collected line. Adjust paving, sidewalks, sewers (Vehicular Movement) - plan and the like to the particular needs of for such services with a minimum the property dealt with - not to a conventional pattern. Arrange of danger, noise and buildings and grounds so as to give confusion. sunlight, air and a tolerable  Relationship between buildings. outlook to even the smallest and Develop collectively such services as cheapest house. will add to the comfort of the Provide ample sites in the right individual, at lower cost than is places for community use: i.e., possible under individual operation. playgrounds, school gardens, schools,  Arrange for the occupancy of theatres, churches, public buildings houses on a fair basis of cost and and stores. service, including the cost of what Put factories and other industrial needs to be done in organizing, buildings where they can be used building and maintaining the without wasteful transportation community. of goods or people.
  31. 31. GLEN ROCK BolderRADBURN’S CONCEPT SEPARATION of pedestrian and vehicular trafficSuper block - large block ERNIE Rail road surrounded by main roads houses grouped around Saddle river small CUL DE SACS - each accessed from main road, Living, Bedroom faced gardens & parks, service areas to ACCESS ROADS remaining land - PARK AREAS SADDLE BROOK TownshipWALKWAYS - designed such that pedestrians can reach social places without crossing automobile street
  32. 32. RADBURN’S CONCEPTFINANCIAL PLANNING Parks without additionol cost from REsidents Savings from minimising roads - requires less road area 25% less area gave 12- 15% of total park area
  33. 33. RADBURN’S CONCEPT - applications US  Baldwin Hills Chandigarh, India  Los Angels  Kitimat B.C Brazilia, Brazil Several towns in RussiaEngland - post WWII – Section of Osaka , Japan  Coventry,  Stevenage, Wellington, New  Bracknell and Zealand  Cumbermauld Sweden – US - Reston, Virginia &  Vallingby,  Baronbackavna Estate, Orebro & Columbia, Maryland  Beskopsgaden Estate Goteborg
  34. 34. SATELLITE TOWNSA satellite town orsatellite city is aconcept in urbanplanning that refersessentially tominiaturemetropolitan areason the fringe oflarger ones
  35. 35. SATELLITE TOWNSCharacteristics  Are physically separated fromSatellite cities are the metropolis by rural territory; satellite cities should small or medium-sized have their own independent cities near a large urbanized area, or equivalent; metropolis, that are  Have their own bedroomPredate that communities; metropolis suburban  Have a traditional downtown expansion; surrounded by traditionalAre at least partially "inner city" neighborhoods; independent from  May or may not be counted as that metropolis part of the large metropolis economically and Combined Statistical Area socially;
  36. 36. RIBBON DEVELOPMENT• Ribbon development means building houses along the routes of communications radiating from a human settlement.• Such development generated great concern in the UK during the 1920s and 30s, as well as in numerous other countries.• Following the Industrial revolution, ribbon development became prevalent along railway lines - predominantly in the UK, Russia, and United States.• A good example of this was the deliberate promotion of Metroland along Londons Metropolitan railway.• Similar evidence can be found from Long Island (where Frederick W Dunton bought much real estate to encourage New Yorkers to settle along the Long Island Railroad lines), Boston and across the American mid- west• Ribbon development can also be compared with a linear village which is a village that grew along a transportation route, not as part of a citys expansion.
  37. 37. EKISTICS • Ekistics is the study of human settlement, which examines not only built forms, but also the interface of time, movements and systems in the built environment. • Doxiadis saw ekistics as an intellectual approach to balance the convergence of the past, present, and future in human settlements as well as a system for creatively coping with the growth of population, rapid change and the pressures of large- scale, high-density housing.
  38. 38. EKISTICS Ekistics Lograthamic Scale (ELS) MAN ELS consists of 15 Ekistic Units ranging ROOM from Man to Ecumenopolis DWELLING Classified under 4 major types NEIGHBOURHOOD Minor shells, or elementary units (man, room, house) TOWN Micro-settlements, the units smaller than, CITY or as small as, the traditional town where METROPOLIS people used to and still do achieve interconnection by walking CONURBATION Meso-settlements, between the traditional MEGALAPOLIS town and the conurbation within which one can commute daily URBAN REGION Macro-settlements, whose largest possible ECUMENAPOLIS expression is the Ecumenopolis,
  39. 39. EKISTICS UNITSNATURE MAN SOCIETY SHELL NETWORKS  Population  Housing composition  Water supply Geological  Biological  Community and density systems resources needs (space, services  Social  Power supply Topographical air, (schools, stratification systems resources temperature, hospitals, etc.)  Cultural  Transportation Soil resources etc.,)  Shopping patterns systems (water, Water  Sensation and centers and  Economic road, rail, air) resources perception markets development  Communication Plant life (the ‘five  Recreational  Education systems Animal life senses) facilities  Health and (telephone, Climate  Emotional  Civic and welfare radio, TV etc.) needs (human business centers  Law and  Sewerage and relations, (town hall, law- administration drainage security, courts, etc.)  Physical layout beauty, etc.)  Industry (Ekistic plan)  Moral values  Transportation centers
  40. 40. EKISTICS – Nature & Goals of SettlementFive elements forms a SystemGoal - make man happy and safe. Primary Man Nature Society Secondary Network Shells Tertiary
  41. 41. BROAD ACRE CITY specific in his designation of the various elements. In a model representing four square miles, he proposed a main arterial adjoined to rectangular field used for agricultural purposes (vineyards and orchards).meandering stream in the southern portion. Zoning - by activity and function, and single- family home was the predominant building type. Large thoroughfares were intersected by large street at half-mile intervals.
  43. 43. BROAD ACRE CITY “organic buildings - designed by architecture”, to reflect the individuality of the population. This would eliminate the imitations which he felt were reflected in the World Expositions in Chicago (1893) and New York (1939-40). He further advocated the use of more modern material such asglass and steel which keeps the elements (of weather) out, but allows the outdoors in, putting man less separate from nature and eliminating what he likens to a fortification. buildings -groups of smaller units in a beautifully landscaped setting. He advocated the concept of mobile hotels and houseboats which promoted the freedom of movement aforementioned – the freedom to stay or the freedom to go.