Abstract:Elevated interchanges, as key nodes in the urban road system, play a crucial role in diverting traffic, alleviating congestion and enhancing the efficiency of road network. However, with the acceleration of urbanization and the continuous growth of the number of motor vehicles, some urban grade separations have become unable to meet the rapidly growing traffic demands, leading to traffic bottlenecks. Scientific and reasonable reconstruction of existing urban interchanges has become an important issue in the current construction of urban transportation infrastructure. Taking the reconstruction of Jinshui Road - Zhongzhou Avenue Interchange in Zhengzhou City as an example, various factors of traffic function, landscape effect, land use condition, construction difficulty, impact on traffic preservation and engineering investment are comprehensively considered to obtain the best design scheme, which provides the beneficial reference for the similar grade separation reconstruction projects.