In order to promote economic integration of the Beijing-Tianjin-Hebei region, China plans to build a two-hour circle to cover major cities in the Bohai Rim Region.

• 为了促进北京-天津-河北地区的经济一体化，中国计划修建一个两小时之内走遍环渤海经济圈主要城市的铁路。