Abstract: Bus Rapid Transit，as a new type of bus transit mode，has been adopted as the effective way to solve city traffic problems because of its lower investment，shorter construction period，and easier to take effect. The test report of bus rapid transit service does help to find the weak condition in the run of bus rapid transit，also is good for adjusting the overall design of bus rapid transit lines，the comprehensive balance of service ability and volume，the market development，and attracting passengers，to keep the further development of bus rapid transit. The estimate of bus transit service is important to realize，construct，develop city bus transit industry，also is significant for us to make bus transit more perfect. Based on the common bus traffic evaluation system，the author sets up the service index system of BRT. The thesis attempts to use Gray Clustering Analysis to evaluate the service level of BRT roundly and objectively，reflects service quality of BRT. The thesis has made more statements and improvement of the bus transit conditions. According to the local running conditions and the deficiency of bus rapid transit，the author makes more valuable measures to develop the whole service level of the BRT.

Key words: BRT, service level, evaluating indicator.

摘要： 在普通公共交通服务水平评价体系的基础上，构建系统、科学、客观、实用的城市快速公交服务水平评价指标 体系。基于几种常用的评价方法，运用灰色聚类法对快速公交服务水平进行全面、客观的综合评价，反映快速公交 服务质量。结合实际，进行了快速公交服务水平的评价，提出了相应改进措施。

关键词: 快速公交, 服务水平, 评价指标