La thèse s’interroge sur l’articulation entre la plus-value foncière et l’infrastructure routière dans la fabrique urbaine à travers le cas de la ville de Tananarive. L’analyse est focalisée sur les effets des infrastructures dans la valorisation des terrains sis à proximité des nouvelles routes construites au début de l’année 2000 à Tananarive. En effet, dans un contexte de croissance urbaine et de faible disponibilité des terrains constructibles, la pression sur le gisement foncier autour des nouvelles routes qui traversent des rizières et des marais est accrue. Cependant, l’analyse de la transformation du gisement foncier révèle l’anticipation de réalisation des infrastructures routières. Il s’agit précisément de l’anticipation des plus-values foncières. Si les effets des infrastructures sur le prix immobilier et la valorisation foncière sont bien documentés, l’analyse des effets portant sur l’anticipation foncière est moins bien approfondie, notamment pour les villes en développement comme Tananarive. La thèse apporte des éléments de réponse à ces lacunes en croisant l’analyse la dynamique historique du lien entre infrastructure routière et rente foncière dans le développement de la ville de Tananarive et les instruments (PPP) ou les stratégies mobilisées par les acteurs urbains (publics, privés) autour des nouvelles routes. En effet, l’effet de valorisation foncière des nouvelles routes résultent de dynamiques historiques de l’évolution de la ville et des stratégies spatio-temporelles des acteurs urbains autour des infrastructures / This thesis deals with the question of articulation between infrastructure transport and land value in urban making. It examines the impact of road infrastructure on property value close new road infrastructure in Antananarivo (capital of Madagascar). In the context of land pressure because of the lack of land availability and growing urbanization, urban sprawl around the new road have been transforming hectares of marshes and lowlands used for rice-growing. But the conversion process of this land show the expectation of the road infrastructure impact on property value which have influenced urban making. Although the research of infrastructure impact on house’s price or land value is well documented and concentrated in the case of western cities, no more research study the case of developing cities and little attention has been given to the impact of expectation property and land values. By studying the land strategy of actors (public and private actors) through public policy instruments: the use of Public-Private Partnership (PPP) as tool for negotiation in urban making and infrastructure project and the developing of town planning documents nearby new road infrastructure area, this work point out how do actors negotiates public policy instruments to create property and land values and expect it? But this impact is part of the historical dynamic of the city’s development. In fact, we suppose that the effect of road infrastructure on land value depends on the historical context of urban sprawl by road and on land strategy of anticipation of actors by public policy instrumentation. Keywords: Land Value, Private-Public Partnership, Coalition, Road Infrastructure, Urban Sprawl, Anticipatio

This thesis investigates the effectiveness of Low Impact Development Infrastructure (LIDI) and Green Infrastructure (GI) in reducing flooding resulting from heavy rainfall events and sea-level rise, and in improving stormwater quality in the City of Miami Beach (CMB). InfoSWMM was used to simulate the 5, 10, and 100-year, 24-hour storm events, total suspended solids (TSS), biochemical oxygen demand (BOD), and chemical oxygen demand (COD) loadings, and in evaluating the potential of selected LIDI and GI solutions in North Shore neighborhood. Post-development results revealed a decrease of 48%, 46%, and 39% in runoff, a decrease of 57%, 60%, and 62% in TSS, a decrease of 82%, 82%, and 84% in BOD, and a decrease of 69%, 69%, and 70% in COD loadings. SWMM 5.1 was also used to simulate the king tide effect in a cross section in Indian Creek Drive. The proposed design simulations successfully demonstrated the potential to control flooding, showing that innovative technologies offer the city opportunities to cope with climate impacts. This study should be most helpful to the CMB to support its management of flooding under any adaptation scenarios that may possibly result from climate changes. Flooding could be again caused as a result of changes in inland flooding from precipitation patterns or from sea-level rise or both.