交通运输业是国民经济的基础和先行产业，国民经济是指一个国家社会经济活动的总称。公路运输作为最广泛，最基本的交通运输方式，它是整个交通运输系统的重要组成部分。通过对公路运输与国民经济的关系进行简要分析，接着给出能够反映国民经济与公路运输的具体的指标数据并运用SPSS软件进行定量分析，得出了能够反映公路运输与国民经济相互关系的回归方程，运用客货运强度与客货运弹性对公路运输与国民经济之间的关系进行定量分析。结果表明，公路运输与国民经济的相关性非常高，并存在极其重要的互动作用。。%T ransportation is the foundation and leading industries of the national economy ,in general it re‐fers to a country's social and economic activities .As the most extensive ,the most basic means of transpor‐tation ,wad trans portation is an important part of the overall transportation system .Firstly ,through a brief analysis of the relationship between the road transport and national economy ,and then given to re‐flect the national economic data and specific indicators of road transport and use of SPSS software for quan‐titative analysis ,obtained reflect mutual road transport and national economy regression relationship ,then use of passenger and freight transport and passenger and freight resilient strength of the relationship be‐tween road transport and national economy were quantitatively analyzed .The results showed that the cor‐relation between road transport and national economy is very high ,and there is an extremely important in‐teraction .
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