Assessment and Retrofitting for Upgrading Existing Infrastructures in Urban Area

Doha the capital of Qatar, has been facing phenomenal growth of vehicular traffic with a parallel growth and rapid development of infrastructure and this resulted in all sorts of traffic congestions, significant rise in traveling time in some areas, etc. To mitigate these problems upgrading existing intersections and subsequently the included structures along significant corridors is a strategy currently implemented. A real case study is presented with a project awarded as a Design and Build Contract by the Public Works Authority to upgrade the infrastructure at the junction of a major corridor. The paper covers the pre-design stage and the final design solution is presented outlining the methodological approach, analysis and models used to address the maintenance condition, the functional requirements and the project specific requirements and constraints.

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