As the enlarging investment of highway building in our country, some of highway tunnels are inevitable to cut through the coal strata and gob.
随着我国对高速公路建设的加大投入，有些公路隧道不可避免的穿过煤系地层和采空区。
2
Whether the highway administration system is good or not, is related to enhance the efficiency of investment of road, is related to the quality of road conditions and the level of social service.
On the basis of the investment and financing system in the railway and highway, comparative analysis of the two key to the breakdown of the investment and financing is emphases.