“一带一路”交通基础设施联通亚欧大陆，也联通中国西部与沿线国家，促进亚欧大陆一体化和中国经济“向西开放”的空间经济意涵明显。其六大经济走廊交通基础设施建设均已取得了进展，但差异显著。中巴经济走廊进展最快，孟中印缅经济走廊最慢，中蒙俄经济走廊建成项目最多，中国-中亚-西亚经济走廊次之。从在建项目和拟议项目看，中蒙俄经济走廊联通度提升的效果最好、潜力最大，联通度提升指数分别达到6.80和10.14，而孟中印缅经济走廊仅在未来拟议项目均完工时才有成效。进一步分析“向西开放”对中国西北地区和西南地区分别造成的影响，发现当前西北地区联通度提升更为明显，且未来联通度提升空间较大。
“The Belt and Road”（B&R）transportation infrastructure connects the Eurasian continent，and also connects western China with B&R countries. The spatial economic implications of promoting the integration of the Eurasian continent and the “westward opening” of the Chinese economy are obvious.Progress has been made in the construction of transportation infrastructure in the six major economic corridors，but there are significant differences. The China-Pakistan Economic Corridor is progressing the fastest，the Bangladesh-China-India-Myanmar Economic Corridor is the slowest，the China-Mongolia-Russia Economic Corridor has the most completed projects，followed by the China-Central Asia-West Asia Economic Corridor. According to the constructed projects and the proposed projects，the China-Mongolia-Russia Economic Corridor has the greatest effect and potential for improving connectivity，with connectivityimprovement indexes reaching 6.80 and 10.14，respectively. The Bangladesh-China-India-Myanmar Economic Corridor will only be benefit when the proposed projects are completed. Further distinguishing the impact on China’s northwestern and southwestern regions，the connectivity increase in the northwestern region is more obvious，while the potential for improving connectivity are both large.
