Scholarly record

CHANGE DETECTION TRENDS IN URBAN AREAS WITH REMOTE SENSING AND SOCIO-ECONOMIC DIAGNOSIS IN BUCHAREST CITY

Alina Răduțu, Maria Ioana Vlad S ndru, Ion Nedelcu, Violeta Poenaru

Abstract

Urban areas are very dynamic environments, subject to continuous expansion and growing population, with land use changes influenced by the needs and dynamics of the population. Using remote sensing techniques applied to Sentinel-1 GRD images, some change detection patterns could be revealed for Bucharest city, for a period of three years (2016-2019). As the largest city in Romania, the main university center and the most important industrial and commercial center, Bucharest offers a wide range of educational, investment and job opportunities, attracting population from all parts of the country and even from abroad. In this context, a high importance is dedicated to human capital index analysis, considering the living, working and education environment, which can be correlated with the change detection trends. Two decades ago, the general trend of the migrant population to large urban centers was settling inside the city. Considering the anthropic and environmental urban factors, the general migration trend changed from the city center to the peri-urban areas, which led to the emergence of new residential neighbourhoods, commercial centers and deposits in these areas. Meanwhile, former industrial areas or unbuilt spaces situated close to the city center have been replaced by office buildings or by luxury residential areas. The change detection map is a promising instrument for the urban planning and design, as certain changes can be correlated with different issues related to the technical-municipal networks.

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