Discussion is made on the necessity and meaning of the building of Tongsan Highway Harbin Belt Highway Northwest Semicircular Route, and the reasonable route programme is put forward.

• 根据我省公路网建设和规划情况,就目前穿越哈尔滨市各条公路的现状,对同三公路哈尔滨市绕城高速公路西北半环路修建的必要性、意义进行了分析,同时提出了合理的路线方案。