关键词: 长三角一体化；交通发展；协同治理；社会资本

Abstract: The transportation integration of the adjacent regions of the Yangtze River Delta is an important cornerstone of the high-quality development of the Yangtze River Delta integration. Since the integration of the Yangtze River Delta was elevated as a national strategy in 2018, significant progress has been made in infrastructure construction, public transportation and inter-provincial road connectivity in the adjacent regions of the Yangtze River Delta. However, there are still problems in the integration of inter-provincial adjacent areas, such as unbalanced development of rail transit, poor coordination across administrative regions and insufficient social capital investment. From the perspective of high-quality development of inter-provincial adjacent areas, this paper puts forward some relevant countermeasures and suggestions, such as promoting balanced economic development, promoting cross-administrative coordination and increasing social capital investment.

Key words: Yangtze River Delta integration; transportation development; collaborative governance; social capital