Examining urban expansion using multi-temporal landsat imagery: A case study of montreal census metropolitan area

2016 ◽  
Author(s):  
He Zhao ◽  
Lingfei Ma ◽  
Lanying Wang ◽  
Jonathan Li
Keyword(s):  
Metropolitan Area ◽  
Landsat Imagery ◽  
Urban Expansion ◽  
Multi Temporal ◽  
Census Metropolitan Area

scholarly journals EXAMINING URBAN EXPANSION USING MULTI-TEMPORAL LANDSAT IMAGERY: A CASE STUDY OF THE MONTREAL CENSUS METROPOLITAN AREA FROM 1975 TO 2015, CANADA

2016 ◽  
Vol XLI-B8 ◽  
pp. 965-972
Author(s):  
Lingfei Ma ◽  
He Zhao ◽  
Jonathan Li
Keyword(s):  
Land Use ◽  
Economic Development ◽  
Metropolitan Area ◽  
Urban Areas ◽  
Landsat Imagery ◽  
Urban Expansion ◽  
Growth Patterns ◽  
Urbanization Process ◽  
Continuous Growth ◽  
Census Metropolitan Area

Urban expansion, particularly the movement of residential and commercial land use to sub-urban areas in metropolitan areas, has been considered as a significant signal of regional economic development. In 1970s, the economic centre of Canada moved from Montreal to Toronto. Since some previous research have been focused on the urbanization process in Greater Toronto Area (GTA), it is significant to conduct research in its counterpart. This study evaluates urban expansion process in Montréal census metropolitan area (CMA), Canada, between 1975 and 2015 using satellite images and socio-economic data. Spatial and temporal dynamic information of urbanization process was quantified using Landsat imagery, supervised classification algorithms and the post-classification change detection technique. Accuracy of the Landsat-derived land use classification map ranged from 80% to 97%. The results indicated that continuous growth of built-up areas in the CMA over the study period resulted in a decrease in the area of cultivated land and vegetation. The results showed that urban areas expanded 442 km<sup>2</sup> both along major river systems and lakeshores, as well as expanded from urban centres to surrounded areas. The analysis revealed that urban expansion has been largely driven by population growth and economic development. Consequently, the urban expansion maps produced in this research can assist decision-makers to promote sustainable urban development, and forecast potential changes in urbanization growth patterns.

scholarly journals EXAMINING URBAN EXPANSION USING MULTI-TEMPORAL LANDSAT IMAGERY: A CASE STUDY OF THE MONTREAL CENSUS METROPOLITAN AREA FROM 1975 TO 2015, CANADA

2016 ◽  
Vol XLI-B8 ◽  
pp. 965-972 ◽  
Author(s):  
Lingfei Ma ◽  
He Zhao ◽  
Jonathan Li
Keyword(s):  
Land Use ◽  
Economic Development ◽  
Metropolitan Area ◽  
Urban Areas ◽  
Landsat Imagery ◽  
Urban Expansion ◽  
Growth Patterns ◽  
Urbanization Process ◽  
Continuous Growth ◽  
Census Metropolitan Area

Urban expansion, particularly the movement of residential and commercial land use to sub-urban areas in metropolitan areas, has been considered as a significant signal of regional economic development. In 1970s, the economic centre of Canada moved from Montreal to Toronto. Since some previous research have been focused on the urbanization process in Greater Toronto Area (GTA), it is significant to conduct research in its counterpart. This study evaluates urban expansion process in Montréal census metropolitan area (CMA), Canada, between 1975 and 2015 using satellite images and socio-economic data. Spatial and temporal dynamic information of urbanization process was quantified using Landsat imagery, supervised classification algorithms and the post-classification change detection technique. Accuracy of the Landsat-derived land use classification map ranged from 80% to 97%. The results indicated that continuous growth of built-up areas in the CMA over the study period resulted in a decrease in the area of cultivated land and vegetation. The results showed that urban areas expanded 442 km&lt;sup&gt;2&lt;/sup&gt; both along major river systems and lakeshores, as well as expanded from urban centres to surrounded areas. The analysis revealed that urban expansion has been largely driven by population growth and economic development. Consequently, the urban expansion maps produced in this research can assist decision-makers to promote sustainable urban development, and forecast potential changes in urbanization growth patterns.

scholarly journals MANAGEMENT ELEMENTS OF THE EMERGENT METROPOLITAN AREAS IN A TRANSITION COUNTRY. ROMANIA, AS CASE STUDY

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Ioan IANOȘ ◽  
Daniel PEPTENATU ◽  
Cristian DRĂGHICI ◽  
Radu Daniel PINTILII
Keyword(s):  
Metropolitan Area ◽  
Metropolitan Areas ◽  
Integrated Management ◽  
Urban Expansion ◽  
Descriptive Analysis ◽  
Rapid Expansion ◽  
Totalitarian Regime ◽  
Complex Processes ◽  
Countries In Transition

Complex processes, specific to the countries in transition, have had major impacts on restructuring the territorial management systems. The removal of restrictions of limiting urban expansion, imposed by the totalitarian regime, has allowed the rapid expansion of cities, beyond administrative boundaries, since 1989. The concept of emerging metropolitan area is explained by the multitude of problems posed by the sketching of these areas and especially by their functioning. Synthesizing, there are presented some managerial experiences considered inchoate, of some emerging Romanian metropolitan areas, with an emphasis on Bucharest’s metropolitan area. The conclusions of these descriptive analysis show the complexity of the problems that can occur during the process of building of the metropolitan areas under the circumstances of lack of an inter-municipal cooperation culture. Integrated management takes into account two realities: firstly, that the management of emerging metropolitan areas is trans-scalar, achieving the partial mergence of the management types (including the collegiate one), and secondly, that insuring a multi-level governance without implementing a polycentric intra-metropolitan development policy, is not sufficient.

scholarly journals The Changing Spatial Organization of Ethnic Retailing: A Case Study of Chinese and South Asian Grocery Store Retailers in the Toronto CMA From 2001 to 2016

2021 ◽  
Author(s):  
Samantha Perry
Keyword(s):  
South Asian ◽  
Metropolitan Area ◽  
Healthy Food ◽  
Grocery Store ◽  
Grocery Stores ◽  
Residential Patterns ◽  
Ethnic Business ◽  
Grocery Retailing ◽  
Census Metropolitan Area

Understanding the changing spatial structure of ethnic grocery retailing in Canadian urban regions can provide insights into ethnic business development and the well-being of residents, particularly relating to the availability of healthy food and risk of nutrition-related illnesses. This study explores this through a case study of Chinese and South Asian grocery retailing in the Toronto Census Metropolitan Area (CMA). In particular, the changing spatial relationship between ethnic grocery business distribution, ethnic residential patterns, and spatial accessibility is examined between 2001 and 2016. A combination of location quotients and global and local indicators of spatial autocorrelation were utilized to assess the relationship between ethnic groups while measures of spatial central tendency and a nearest neighbor analysis assessed the distribution of grocery retailers. An integrated marginalization-accessibility index was then developed to highlight any spatial mismatch between the level of material deprivation and grocery store access, highlighting patterns of inequality throughout the CMA. The results of the study reveal that Chinese and South Asian grocery retailers and residents have suburbanized over the study period. Index results also indicate that some census tracts (CTs) experienced limited access to both mainstream and ethnic grocery stores, particularly among the South Asian community. Finally, there is a growing number of CTs that are well-serviced to Chinese and South Asian grocery stores but are under-serviced to mainstream retailers, potentially identifying areas where ethnic grocers are filling gaps in service. Key words: ethnic grocery retailing, ethnic residential patterns, accessibility, healthy food provision, marginalized neighbourhoods, Toronto Census Metropolitan Area

scholarly journals Evaluation of Land Use & Land Cover Change Using Multi-Temporal Landsat Imagery: A Case Study Sulaimaniyah Governorate, Iraq

2018 ◽  
Vol 10 (03) ◽  
pp. 247-260 ◽  
Author(s):  
Karwan Alkaradaghi ◽  
Salahalddin S. Ali ◽  
Nadhir Al-Ansari ◽  
Jan Laue
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Land Cover Change ◽  
Landsat Imagery ◽  
Multi Temporal
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