JWAJournal of World Architecture2208-34802208-3499Bio-Byword Scientific Publishing Pty. Ltd.10.26689/jwa.v7i4.5208ArticleAnalysis and Research on Interchange and Expansion options of Expresswayhttps://artdesignp.com/journal/JWA/7/4/10.26689/jwa.v7i4.5208LuoYaoping2023742023-08-29China's road network consists of numerous older expressways experiencing high traffic volumes and severe congestion necessitating urgent reconstruction and expansion efforts. This study discusses the reconstruction and expansion project of the Yinkun Expressway's Chongqing High-tech Zone to Rongchang District section with a detailed exploration of the entire design process. Through a comprehensive analysis the strengths and weaknesses of different plans are examined so as to determine the optimal plan. The design chosen saves costs while effectively addressing traffic demands. Additionally the study summarizes the valuable design insights gained from this interchange transformation aiming to provide valuable reference for similar interchange projects in the future.

China Communications First Highway Survey and Design Research Institute Co., Ltd., 2017, Highway Route Design Specifications, JTG D20-2017, June 20, 2023.

China Communications First Highway Survey and Design Research Institute Co., Ltd. 2015, Highway Engineering Technical Standards, JTG B01-2014, June 20, 2023.

China Highway Engineering Consulting Group Co., Ltd., 2014, Highway Interchange Design Rules, JTG/T D21-2014, June 20, 2023.

Liu Z, 2015, Design Principle and Application of Interchangeable Interchange, People’s Press, Beijing.

Wang B, 1992, Road Interchange Engineering, Dalian University of Technology Press, Dalian.

Li L, Meng X, 2011, Discussion on the Setting and Design Ideas of Urban Interchanges. Science and Technology Information

Guan C, Li M, (eds) 2005, NewConcept Highway Design Guidelines, People’s Press, Beijing

Ren W, 2022, Discussion on the Combined Setting of Interchanges and Service Areas. Highway, 2022(7): 122–124.

Wei W, Zou Y, 2010, Discussion on the Option Design of the South Bridge Head Interchange of Chongqing Yudong Yangtze River Bridge. Highway Transportation Technology, 2010(5): 29–31 .

Zhao Z, 2014, Research on Traffic Organization of Expressway Interchange Reconstruction and Expansion. Changsha University of Science and Technology.