关键词: 城市交通, 服务水平阈值划分, 验证性因子分析, 乘客感知, 信效度检验, 重要度指数法

Abstract:

Based on pedestrian’s“perception- response”and in order to provide expected service to passengers, a method is presented to determine thresholds of level of service (LOS) for corridor in subway station. Both the perception indicator of assessing LOS, average space occupancy, and sample size, 200, are decided by questionnaire survey and the method of importance index. Picture grouping test is conducted to make sure the coverage of pictures in each item of questionnaire. Validity of content is guaranteed by experts and references. Reliability of the survey data is insured by controlling the process of questionnaire survey and logical analysis of the survey data. Structural validity is tested by confirming factors analysis. Criteria of LOS A-E are calculated by using qualified data. As shown in the results, the criteria are lower than that of AE in TCQSM, the threshold between D and E is a little higher than that between E and F in TCQSM. Compared between genders, the criteria of LOS A and B of male are higher than that of female, C and D of both are almost the same. The criteria are analyzed to be reasonable and the method presented can be applied to determine thresholds of LOS of other facilities and infrastructure in subway.

Key words: urban traffic, classification of level of service, confirming factors analysis, pedestrian perception, test of reliability and validity, the method of importance index