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Ines GRIGORESCU Gheorghe KUCSICSA Bianca MITRICĂ Irena Mocanu
5th Halle Forum on Urban Economic Growth December 11-12, 2014 ASSESSING SPATIO-TEMPORAL DYNAMICS OF URBAN SPRAWL IN THE BUCHAREST METROPOLITAN AREA Ines GRIGORESCU Gheorghe KUCSICSA Bianca MITRICĂ Irena Mocanu ROMANIAN ACADEMY INSTITUTE OF GEOGRAPHY
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METROPOLITAN AREAS IN ROMANIA
BUCHAREST METROPOLITAN AREA LEGISLATIVE APPROACH POLITICAL APPROACH SCIENTIFIC APPROACH METHODS AND OBJECTIVES KEY DRIVING FORCES OF URBAN SPRAWL POLITICAL DEMOGRAPHIC... SPATIO-TEMPORAL DYNAMICS OF BUILT-UP AREAS IN THE BUCHAREST METROPOLITAN AREA USING SIGNIFICANT INDICATORS ( / ) CONCLUSIONS
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Towns/metropolitan areas in Romania grouped by demographic size
Town group/inh. No. of towns in 2012 Towns which have undergone functional and prospective metropolitan areas Total towns of which: 320 22 Small towns (total) with 215 under 5,000 20 5,000–10,000 98 10,000–20,000 96 Medium-sized towns (total) with: 81 5 20,000–50,000 59 1 (Simeria) 50,000–100,000 4 (Deva, Hunedoara, Râmnicu Vâlcea) Large cities (total) with: 23 16 100,000–150,000 9 4 (Baia Mare, Suceava, Târgu Mureş, Satu Mare) 150,000–200,000 4 2 ( Bacău, Piteşti) 200,000–300,000 5 (Brăila, Braşov, Galaţi, Ploieşti, Oradea) 300, ,000 5 (Cluj-Napoca, Constanţa, Craiova, Iaşi, Timişoara) Very large cities: 1 Over one million 1 (Bucharest) Legal instruments according to which a metropolitan area is to be established based on the joint association of the administrative-territorial structures
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LEGISLATIVE APROACH the outline of metropolitan areas in Romania - metropolitan territory defined in the National Territory Management Plan, Section IV – Settlements (Law No. 351 of July 6th 2001) as zone (area) established through association, by voluntary partnership between the main urban centres (the capital city of Romania and the first-rank municipalities) and the adjoining urban and rural settlements situated at distances of up to 30 km, developing cooperation relations at different levels completed by Law No. 350/2001, Ordinance No. 53/2002 and Law No. 286/2006 (local public administration) - offering new approaches to metropolitan organisation and management
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METROPOLITAN AREAS IN ROMANIA
Metropolitan areas do not exist as independent administrative units in Romania. They exist as core cities and a number of small municipalities ranging from villages to small towns. Over 11,000,000 inhabitants (55.0% of Romania’s total population) live in urban areas, of which 7,500,000 (34%) in metropolitan structures.
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BUCHAREST METROPOLITAN AREA
SCIENTIFIC APROACH 1929, 1937, 1942 „urban region” the territory based on “the relationship between a city's build-up area – in this case Bucharest - and the surrounding area” One of the first outlines of the Capital’s Metropolitan Area (Ianoş et al., ) included 94 local administrative units (villages and towns) from five counties: Ilfov, Călăraşi, Giurgiu, Dâmboviţa and Ialomiţa. Development directions, ways and intensities of the Bucharest Municipality and its metropolitan zone. Environmental protection politics, Centre for Environmental Research and Impact Studies, University of Bucharest (requested by Urban Planning Centre of Bucharest Municipality) the concept of metropolitan area takes into account two levels: a periurban level and a metropolitan level.
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Ion Iordan considers the metropolitan zone as “a large territory where a city’s (metropolis) influence is felt in several fields. Its influence is affecting the agricultural structures, transport network, services, tourist activities, trade and education structures” - metropolitan area includes both the suburban and the periurban zones Based on the delimitation made by Professor N. Rădulescu in terms of agricultural consumption products: Suburban zone - very close to the urban space and consists of the outer neighbourhoods of the city Periurban zone - surrounds the suburban zone enclosing it Metropolitan zone - surrounds the periurban zone and encloses the other two the territory and the settlements situated near the main cities having different and temporary relations and constituting a relatively large influence area of the city
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Iordan, 1998, 2003
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2004, 2005, 2008 – Săgeată - based on the relations between settlements and the area falling under the influence of the Capital-city The Capital’s indirect sphere of influence encompasses areas located at longer distances which tend to connect to Bucharest through secondary polarisation centres (Giurgiu, Olteniţa and Urziceni) A large county-like metropolitan area comprising 4 units at sub-department level and 145 local administrative units (cities and small towns) totalling 455 human settlements.
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Sageata, 2004, 2005, 2008
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POLITICAL APPROACH a legislative project launched by Vasile Gherasim, the then mayor of the 1st district of Bucharest In his view, Bucharest Metropolitan Area was to be an administrative-territorial unit in its own right, having the rank of county, including Bucharest and other 62 localities, all structured into two distinct parts: Bucharest Metropolitan Centre (BMC), which would include the polarising urban core Bucharest Pre-metropolitan Area (BPA) consisting of the rural belt around the Capital The initiative was accompanied by a theoretical study regarding the need to organise this structure.
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The project of a Capital-City Low (Bucharest-Ilfov Regional Strategic Reference Framework, The Bucharest-Ilfov Regional Development Agency) would transform Ilfov County into a metropolitan area : metropolitan centre (currently Bucharest) pre-metropolitan zone (small communes and cities in Ilfov County) patterned on the administrative structure of Rome Run by a governor holding the rank of Prime-Minister and by a General Administrator of the metropolitan area. Each town will maintain its own administrative structure, own development programmes and projects that will be implemented in a unitary manner. Surface: about 2,050 km2, of which 800 km2 of rural area, and 250 km2 of urban area.
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In line with the project document regarding the Strategy for Territorial Development of Romania 2035 spatial entities scheduled to play a major role in the Romanian urban system are foreseen to be developed metropolitan poles with international potential (e.g. Bucharest, Timişoara, Iaşi and Constanţa) metropolitan poles with superregional/interregional potential (e.g. Braşov, Cluj-Napoca, Craiova, Oradea, Ploieşti and Galaţi – Brăila) poles with regional potential (e.g. Arad, Suceava, Râmnicu Vâlcea, Sibiu) poles with limited regional potential (e.g. Tulcea, Bacău, Vaslui, Călăraşi) sub-regional poles with urban functional zone potential urban poles with zonal influence urban poles with local influence and towns in the vicinity of metropolitan poles.
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METHODS AND OBJECTIVES
METHODS AND DATA SOURCES: MAPS source Year Scale Area (ha) Austro-Hungarian map 1912 1: 25 596 Topographic map 1945 44 254 1975 50 420 SATELLITE IMAGES year data Path/row resolution LANDSAT 4-5 TM 1988 1990 July 07 182/029 30 m 56 356 August 21 183/029 LANDSAT 7 ETM 2002 August 23 61 930 September 15 2014 75 548 April 09 Statistical data supplied by National Institute of Statistics: Romanian Statistics Yearbooks ( ) TEMPO online ( GIS integration and analysing OBJECTIVES: Assessing spatial and temporal dynamics of the built-up areas in the BMA; Assessing causes and effects of spatial suitability and prediction for urban sprawl
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URBAN SPRAWL IDENTIFICATION AND ANALYSING
CARTOGRAPHIC SOURCE Austro-Hungarian map Topographic map 1: SATELLITE IMAGES LANDSAT 4-5 TM LANDSAT 7 ETM 30 m GIS integration/processing GEOSTATISTICAL ANALYSIS INDICATOR Expansion INDICATOR Local Expansion INDICATOR Annual Growth Rate URBAN SPRAWL IDENTIFICATION AND ANALYSING SPATIO-TEMPORAL INTENSITY AND TREND FURTHER ANALYSIS (CORRELATIONS BETWEEN DIFFERENT INDEPENDENT VARIABLES) FUTURE TENDENCY - PREDICTION OF SPATIO-TEMPORAL GROWTH
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KEY DRIVING FORCES OF CHANGE
POLITICAL The 20th century ( ) Land reforms ( , 1945) Major changes in the structure of landed property – expropriation of the rural population in order to increase the communal ownership Putting different categories in possession of land (war veterans, widows and orphans, farmers with properties smaller than 5 ha etc.) The establishment of the communist regime – liquidation of big landowners property Centralised agriculture – collectivisation and state farms - mainly intensification/extensification of agriculture The post-communist period ( ) The transition period ( ) Transition from a centralised economic system to the market economy Land reform (L18/1991) – decollectivisation and privatisation of agriculture Excess fragmentation, small, peasant-type family farms (env. 2-3 hectares); the degradation of production services in agriculture (irrigation, fertilization, mechanization), degradation of the productive quality of agricultural terrains - many arable lands and permanent crops had been abandoned Pre-accession to the European Union - important land-use changes, deforestation and suburbanization Post-transition period (2003-to date) Changes related to EU integration - the implementation of the Common Agricultural Policy (CAP) Economic boom (until 2008) and crisis (after 2008) - spatial dynamics – urban sprawl (suburbanization)
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Bucharest and its surroundings, Landsat 5 Image (TM), 1984 and 2001 respectively (www.unep.cz)
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Abandonment of land management works
Irrigations systems disaffected Canals and dams destroyed Associated with excessive land fragmentation, enhances the effects of dryness and drought phenomena
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DEMOGRAPHIC 2011 positive trend in the first half of the 20th century - birth rate decrease, intensification of emigration abroad, high rate of mortality during the two World Wars); positive trend - over the communist period due to pronatalist policies; negative trend during the post-communist period (birth rate decrease, high levels of mortality rate, demographic aging).
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Population dynamics over the 1912-2011 interval
BMA= 306.9% Bucharest = 446% Metropolitan area (without Bucharest) = 138.2% Min. = -59.4% - Gurbăneşti Max.= % - Voluntari
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Population density related to built-up area (/km²)
Population density related to administrative limit (/km²)
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1912 – 4.8% 1945 – 8.3% 1975– 9.5% 1990– 10.6% 2002– 11.7% 2014– 14.2%
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Expansion of built-up areas
OTOPENI E = 0.24% VOLUNTARI E = 0.22% CHIAJNA E = 0.42% CHITILA E = 0.29% DOBROESTI E = 0.23% BUCHAREST E = >0.40% E = (y-x)/LAU 2 y – last analysed year x – first analysed year
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Local Expansion of built-up areas
PANTELIMON LE = 151% OTOPENI LE = 516% CHIAJNA LE = 242% CHITILA LE = 563% BRAGADIRU LE = 162% VOLUNTARI LE = 1733% LE = E*100/x
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Annual Growth Rate of built-up areas
OTOPENI LE = 10 ha/year VOLUNTARI R = 35 ha/year VOLUNTARI R = 9 ha/year PANTELIMON R = 30 ha/year CHIAJNA R = 29 ha/year POPESTI-LEORDENI R = 7 ha/year Exansion rate
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Trend of built-up areas
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CONCLUSIONS Stronger connection between built-up areas dynamics, urban sprawl and the demographic and socio-political factors – shifting of sprawling trends from a period to another and from the core area to the surrounding areas; Main built-up areas dynamics: Expansion - up to 0.40% - Bucharest; 0.24% - Otopeni ( ); 0.42% - Chitila ( ) Local expansion (LE) - up to over 1733% - Voluntari town ( ); 242% ( ) Rate – up to 10 ha/year - Otopeni ( ); 35 ha/year - Voluntari ( ) Trend built-up areas – clear differences between the two analysed intervals Significant environmental consequences (e.g. land abandonment, land fragmentation, real-estate market dynamics) Better correlation between the spatial and statistical data sources would provide a more accurate assessment.
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CONCLUSIONS Local driving factors:
Transport infrastructure and accessibility The International Airport – Otopeni The National Road 1 – important transport axis to/through the Carpathians The Road Belt – deposits, logistic and commercial areas – Voluntari, Chiajna, Chitila, Otopeni The existent Motorways – A1 (Pitesti) and A2 (Constanta) Projected Motorway – A3 (Brasov) – land speculations Projected new Road Belt – enlargement of the “suburban ring” – land speculations Large shopping areas – hyper-markets at all road exits of Bucharest Residential preferences “Historical” – North of Bucharest Recent preferences – people/developers trying to find new residential nuclei as an alternative to the “crowded North” – South and West Natural Environmental infrastructure
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THANK YOU FOR YOUR ATTENTION !
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