northbound
adjective, adverb uk/ˈnɔːθ.baʊnd/ us/ˈnɔːrθ.baʊnd/
北行的;向北的
going or leading towards the north
northbound traffic 北行车辆
The accident happened on the M1 northbound, just after Junction 18. 事故放生在M1高速公路北行方向，刚过第18号交叉口。
Compare: northward adjective