Abstract: Transit quality service is an important factor that affects the bus split rate. This paper studies the passenger’s preference of the bus service with the conjoint analysis. Through the actual survey and data analysis, the utility values of the reliability, bus departure interval, walking time, etc. are measured. And the attributes’ weights are determined through the utility values. The results show that the bus reliability is passengers’ first concern, which is followed by in-bus environment, walking time and bus departure interval. And the station environment and the price weight low. Then the bus service quality in Nanjing was investigated based on the attributes. The results show that passengers’ evaluations about reliability, in-bus environment and bus departure interval in the peak period are much lower than that in the non-peak period. And their evaluation on reliability is very low. The peak period in-bus environment and bus departure interval also get bad evaluation.

Key words: traffic engineering, transit service quality, conjoint analysis, utility value, weight

摘要： 公交服务质量是影响公交出行分担率的重要因素. 本文利用联合分析方法对乘客对于公交服务的属性偏好进行研究. 通过实际调查及数据分析，得出了可靠性、发车间隔、步行时间等方面属性水平的效用值，并由此确定了各种属性的权重. 研究结果表明乘客最为重视的是可靠性，其次是车内环境、步行时间、发车间隔，而站台环境和价格所占权重较小. 本文还对南京市的公交服务质量进行了调查. 结果表明乘客对于高峰时期可靠性、车内环境和发车间隔的评价低于非高峰时期，且乘客对于可靠性的评价很低，对于高峰时期的车内环境和发车间隔的评价也较低.

关键词: 交通工程, 公交服务质量, 联合分析, 效用值, 权重