国省干线公路网络不断完善，连接了全国县级及以上行政区。
The national and provincial trunk highway network has been improved, connecting administrative regions at and above the county level nationwide.
本文首先根据调查统计数据，建立了河北省干线公路上载货车辆轴重分布模型；
First, the axle-load distribution model of heavy vehicles are constructed on the basis of statistical data.
通过对比分析数值得出辽宁省干线公路网络的分维数比较低，网络直通度比较高的结论。
The results have deminstrate that the Hausdorff fractal dimension is comparatively low and the space relation fractal dimension is high according to the ratio.
对山西省干线公路沥青路面春融翻浆的主要原因进行了分析，提出了一些防治沥青路面翻浆的措施。
This paper analyses on the main reasons of spring breaking-up of bituminous pavement of the trunk highways in Shanxi Province, and puts forward some preventing measures for it.
对山西省干线公路沥青路面春融翻浆的主要原因进行了分析，提出了一些防治沥青路面翻浆的措施。
This paper analyses on the main reasons of spring breaking-up of bituminous pavement of the trunk highways in Shanxi Province, and puts forward some preventing measures for it.
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