Henan, a Chinese province on the central plain area, has an expansive network consisting of national-level and provincial level expressways. As of 2017, the province had 6,523 km (4,053 mi) of expressways.[1] 99 out of the 109 county-level divisions of Henan has expressway connections.
Numbering
The national-level expressways are numbered with a letter prefix G, which is short for "guojia" in Chinese meaning "national". For provincial-level expressways, a letter prefix S, which is short for "shengji" (province level). The numbering of provincial-level expressways in Henan follows the rules below:[2]
For radial expressways leaving Zhengzhou (the province capital), use a number in 81–90. (except for S1)
For north–south expressways, use an odd number in 11–69. (in ascending order from east to west, except for S83)
For east–west expressways, use an even number in 10–70. (in ascending order from north to south, except for S81 and S86)
For connection or branch routes, use a number in 91–99.
Numbers 2-10 are reserved for radial expressways, and 71-80 are reserved for connection routes.
List of routes
National-level expressways
Provincial-level expressways
References
^"2017河南高速总里程突破6500公里 累计完成投资200亿" (in Chinese). Retrieved 2018-05-30.
^"河南省交通运输厅关于印发河南省高速公路网路线命名编号调整方案的通知" (in Chinese). Retrieved 2018-05-31.
