AHMEDABAD: The River and the City 3 rd December 2008.
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Transcript of AHMEDABAD: The River and the City 3 rd December 2008.
AHMEDABAD:
The River and the City
3rd December 2008
INDIAAHMEDABAD
MUMBAI
DELHI
AHMEDABAD
RAJKOTVADODARA
SURAT
AHMEDABAD
GANDHINAGAR
LATITUDE : 23O4’ N
LONGITUDE : 72O34’ E
CLIMATE : HOT AND DRY TYPE
SOIL TYPE : BROWN SANDY & CLAYEY
VEGETATION : DRY DECIDUOUS TYPE
Ahmedabad City Region
*Source: Google Earth website
Location and General Information
*Source: Google Earth website
TOPOGRAPHY : ROCKY IN EXTREME SOUTH, LEVEL PLAIN RISING TOWARDS NORTH AND EAST
GEOLOGY : COVERED BY RECENT AND SUB-RECENT FORMATIONS
TEMPERATURE : MONTHLY MEAN SUMMER-410C ; MONTHLY MEAN WINTER-18.80C
HUMIDITY : MONSOON MONTHS R.H. 80% ; NON MONSOON MONTHS R.H. 30%
RAINFALL : 800mm PER ANNUM
MAIN CATCHMENT AREA OF SABARMATI RIVER
MAIN CATCHMENT AREA OF SABARMATI RIVER
ARAVALI HILLS NEAR UDAIPUR
RANN OF KUTCH
Ahmedabad City RegionLocation and General Information
Ahmedabad City RegionWater Bodies and Topography
LEGEND:
Source: AUDA reports, A.M.C. website
1m interval
2 45km
1 3
0km
N
•The topography of city shows that the land slopes towards South .
•The slope of the city is 1:750 (approx)
•The area under water-bodies is 38.54 km approx. 2.96% of the total area.
•The prime surface water body in Ahmedabad is the river Sabarmati, which flows from North to South and divides the city into two parts; East and West.
•It is not a perennial river. At Eastern side of the city, two minor rivers cross the region i.e. The Khari river and the Meshwa river. A number of ponds / lakes / water bodies are also present in the city.
•Due to rapid urbanization some lakes / water bodies have become extinct. About 36 lakes / water bodies have dried up in last 28 years.
PLAN SHOWING THE LOCATION OF THE VILLAGES AND THE CITY AS CORRESPONDING TO THE WATER BODIES
Evolution of the CityRelation of Water Bodies and the City
VILLAGE SETTELEMENTS
WATER BODIES
N
•Every village had its own pond, which was the source of water.
• Size of pond varied from 20 ha to 80 ha depending on the size of the village.
• These ponds now remain dry during summer months.
• Important ponds in Ahmedabad are Kankaria filled with water throughout the year; and Chandola lake which remains dry even in monsoon.
Source: Unpublished Thesis work Niketa, CEPT student
Kankaria Lake
Chandola Lake
Topography shapes patternsLand and Water : Flow, storage, use, waste, reuse cycles.
Regulate speed and direction of flow through urban pattern to stabilise water and
soil cycles.
Naroda Village
Street Layout, Neighbourhood Limits and Internal Structureaffected by topography.
Ahmedabad showing disused mill lands
1411
1857
1884
1901
1911
1920
1928
1932
1936
1939
1956
1958
1959
1960
2000
GROWTH OF AHMEDABAD(1411-2000)
Evolution of the CityGrowth of Ahmedabad
N
• The area of city during the period 1411-1770 was 5.3 sq.km.
• The establishment of the first textile mill in 1861 was a landmark. With expansion of this industry, development began to spill over (beyond city walls) towards the north-east & south-east of walled city, but only on the Eastern side of the river.
• Construction of Ellis Bridge in 19th century opened up the Western side for urban expansion – mainly Residential.
• Industrial development – Eastern side.
•Commercial development – Walled City.
• City extended beyond present municipal limits & crossed limits of AUDA on Western side.
• After 1982 growth was observed on main transportation routes, where agriculture was predominant.
Source: Unpublished Thesis work, CEPT student
Ahmedabad City RegionTopographic Sheet and AUDA boundary
AUDA BOUNDARYN
Regional topography-sheet showing the extend of AUDA boundary.
• The direction of slope is almost parallel along the
flow of the river Sabarmati. (NE-SW)
• A few elevation points ‘tekras’ are observed in
western Ahmedabad. Depression zone is present
near the city of Mahemdabad.
•Open / vacant land occupies an area of 17.23
Sq.km. and is 3.6% of the total area of urban
complex.
Source: Thesis work Richa Garg, LA,CEPT student
The Formative Period:
Formal Structure
and
An Architecture of Community and Individuality
Urban PatternTopography, Institutions and Neighbourhoods
Many small, definable parts rather than few large ones.
Consistency of structure of parts.
The very large, the very small.
Consolidation, readability,association.
Similarity of sequencing at all scales.
UnitCluster
Neighbourhood
Locality City
Smallest scale typologically ordered.Accretive growth, similarity of patterns.
The Colonial Enterprise
Directness, Simplicity and Frugal Means:
A Possible Indian Architecture ?
Civic Statements:A National Style?
The Era of Institution Building:Modernism and Civic Pride
Searching an Authentic Voice
The Speculative Mode:A Disjointed Carnival