{{|highway system |title=China National Highways |markers= |caption=CNH (Guodao) trunk road marker |map=China National Highway Plan (2013-2030).png |map_alt= |map_notes=Official CNH Trunk roads in China |maint= |formed= |length_mi= |length_ref= |label1=CNH: |field1=GXXX (red) |notes= |country=CHN |type=G }} The China National Highways (CNH/Guodao) (Àdàkọ:Zh) is a network of trunk roads across mainland China. Although they are called "highways" (e.g., the Jingbao Highway), they are not necessarily freeways. However, like expressways, a toll is sometimes charged.[citation needed] Àdàkọ:Highway system OSM map The building of highways is seen as key to accelerating infrastructure construction. In 2003, completed investment in highway construction was 350 billion yuan and 219 key highway projects progressed, focusing mainly on the five north–south and seven east–west national arterial highways as well as highways in western China and in rural areas.