But there are many theoretical and practical questions in these fields: how to run a road, for a road firm how to operate toll road and for government how to regulate the operation of toll roads.
当前在我国，关于公路应该如何运营、公路企业如何经营收费公路、政府如何管理收费公路运营等等方面，存在许多理论与实践问题需要加以研究。
参考来源 - 公路服务的经济学分析及其商业化运营与公共管制研究Therefore, for the existing problems of Wuhan toll roads and toll stations, raising feasible adjustment measures and proposals drawing on successful experience, is the focus of this paper.
因此，针对武汉市收费公路及站点存在的问题，合理借鉴已有成功经验提出可行的调整对策及建议，是本论文的研究重点。
参考来源 - 武汉市道路收费站调整对策研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Most people who drive the toll roads don't use them every day.
大部分开车上收费公路的人不是每天都走公路。
The emerging system through which private companies maintain toll roads in some states is a classic BOT model.
私营公司在一些州维护收费公路的新兴系统是典型的 BOT 模式。
It has slashed the cost of toll roads to almost one-tenth of the normal level, attracting yet more people on to fume-choked roads.
它将收费公路的成本削减至正常水平的近十分之一，然而致使更多的人走上烟雾弥漫的道路。
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