The urban expansion has negative consequences like the increase in built areas and those allocated by roads, the decrease of green areas and the quality of existing public services and the increase of violence towards public and private property. This study aims at studying the urban expansion in Beirut south suburb as a case study for more than 50 years using Remote Sensing (RS) and Geographic information System (GIS) in order to treat the actual situation and limit the future extension. This study analyzes urban expansion between 1963 and 2016 according to two main factors: Land-use change and road network expansion. To study those factors, a comparison has been done between the land-use map and the road network’s map using areal and satellite images for the study area. This study shows the increase in built area to accommodate the population increase, the regression of green areas, the spread of spontaneous grouping, building violations and violence towards public and private property as a result of the increased numbers of arrivals to the region and the increase of non-permeable areas (roads and built areas) which increase the flooding probability during winter. In order to limit the urban expansion, it was supposed to modify the building law in the study area.
The aim of the project is to create a cadastral geodatabase for Marwahin, a village located in south Lebanon.\nIn the current administration in Lebanon, the majority of works is achieved using paper maps and registries therefore the direct link between them isn’t available in majority of cases.\nKnowing that delimitation reports and maps of the village are available, feature and object classes like parcel and owners can be created. Knowing that, there is a relation between maps and registry, a relationship can be created between these two entities. The same work can be done for other entities like zoning etc. Once all entities are related, different queries can be done: like all parcels owned by an owner etc.\nIn order to enforce validation rules, domains has been created (e.g. coded value domains like the legal type, map number, road classification etc.) which have specified values that can eliminate data input errors.\nGIS is recommended to be used to merge registries with maps in order to create a unified system that creates a link between different entities and synchronizes data of topographic service and land registries.