求翻译：城市公共交通由于其具有公益性，其定价不仅要考虑城市中低收入群体的出行的需求，而且城市公共交通工具又是由企业运营，票价要使运营企业保本且盈利，这就要对城市公共交通定价时考虑各个方面的因素。本论文在研究城市公共交通价格的同时主要考虑的是城市轨道交通与常规公共交通间的票价关系。这两种交通方式之间相互争夺客源，这不利于城市公共交通的优化与发展；但这两种交通工具之间又存在交叉价格弹性，因此不能对其孤立的进行定价。因此本论文在考虑整个社会综合效益与居民承受能力的基础上，将两种交通工具实行价格联动，以达到整个系统的最优化。是什么意思？

Urban public transport because of its public service , its pricing should not only consider the needs of low-income groups to travel in the city , and urban public transport companies operate in turn , make the operating companies fare preservation and profitable , it is necessary for the city

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Because the city mass transit it has the public welfare, not only its fixed price must consider the city mid and low earning community the journey demand, moreover the city mass transit tool also is by the enterprise operation, the ticket price must cause the operation enterprise to suffer no loss o

Urban public transport because of its public, its price should not only consider the needs of low-income groups in urban travel and urban public transport is operated by enterprise, fares would have to be made operational breakeven and profit of enterprises, it is necessary to take into account vari

正在翻译，请等待...