Abstract: With the acceleration of industrialization, urbanization and global integration, the connection between cities is becoming increasing intimate, which plays an important role in regional economic growth. “Four-city Area in Middle China” enjoys a nature areal association, together with favorable economic situation, policy guarantee, convenient traffic network and solid foundation of linkage co-building. Taking core cities in “Four-city Area in Middle China” as study objects, the author made a judgment of competitive industries in each city by using location quotient, figured out the extroversion degree through some indexes, such as urban flows, and then measured the traffic development situation according to comprehensive traffic accessibility. Several conclusions can be drew from the paper: firstly, industry development in four cities have their characters respectively but an industry convergence still exists; secondly, Changsha holds the highest extroversion degree; thirdly, Wuhan is equipped with the best traffic accessibility, with Hefei and Nanchang stand at the end of “Four-city Area in Middle China”, although both of them have an outward-looking economic system and comprehensive transportation system. Based on these, the author suggested that strengthen the spatial connection and promote city construction of “Four-city Area in Middle China” could be a practical support for implementing the rising strategy of Central China.

摘要： 随着工业化、城市化及全球一体化进程的加快，城市间密切的联系在区域经济增长中发挥着重要作用。“中四角”具备天然的地域联系，同时拥有良好的经济形势、政策保障及便捷的交通网络，联动共建基础坚实。以“中四角”的核心城市作为研究对象，通过区位商判断城市的优势产业，运用城市流强度等指标确定四城市的外向程度，并根据综合交通可达性测度各个城市的交通发展状况。研究表明，合肥、武汉、长沙、南昌产业发展各有特色，但存在一定的产业趋同现象；长沙的外向程度相对较高；武汉的交通通达性最佳，而合肥、南昌虽有一定的外向经济和综合运输体系，但整体上仍处于“中四角”发展的末端。在此基础上，提出加强空间联系、推动“中四角”城市建设的有效举措，以期为“中部崛起”的实施提供实践支持。