Measuring the influence of bus service quality on the perception of users

Encouraging the use of public transport is a key policy goal in many countries. Therefore, public transport should offer the level of quality that accommodates the demands of current users, and importantly, the desires of potential users. This study investigates the influence of the perceived quality of bus service on the perception of both current and potential users. The study draws upon data from 512 questionnaires distributed across Belfast City in the UK. The study utilises a binary logistic regression model to quantify the relationships between the perceived quality of 29 bus indicators (independent) and the perceptions of users towards the overall bus service (dependent). Eleven significant indicators are reported to have significant influence on the perception of users. These indicators are utilised to propose scenarios for optimising the quality of bus service with the perceptions of current and potential users.     

驾驶特性对交通安全的影响分析

本文基于对人类行为模式的研究,并以此作为参考,将驾驶员的信息处理过程划分为感知、判断、操纵三个阶段。分析感知特性、判断特性、操作特性对交通安全的影响。     

考虑多因素修正的山区二级公路弯坡组合路段小型车运行速度模型

为确定山区二级公路弯坡组合路段小型车运行速度规律,使用Metro Count 5600设备对国道G108和G244山区二级公路共128.8 km的71个特征断面车辆速度进行采集.基于实测数据分析了道路平纵线形及前一个断面车辆初始速度对当前断面运行速度的影响,在初步拟定自变量的基础上,分别采用偏相关分析和因子共线性分析对...     

基于最小临近点迹和航迹关联的多源目标融合方法

针对智能车辆多传感器的目标融合问题,提出了一种改进的基于欧氏距离与余弦相似度的点迹和航迹数据关联的车用多传感器目标跟踪融合算法。该方法需获取由毫米波雷达系统和Mobileye视觉系统检测到的目标物数据列表,并对两个传感系统检测到的目标物数据进行匹配关联;然后对目标物进行匹配跟踪,更新目标物的生命周期状态;最后对上述两个传感系统输出的目标物的数据进行融合。该算法能够融合视觉系统和雷达系统两个传感系统的优点,以达到精确感知环境信息的目的,从而解决单一传感器难以满足感知系统精度及可靠性需求的问题。     

公交运行服务质量评价指标体系探讨

为了从服务学的视角准确考量公交系统运行服务的质量,本文基于交通调查和系统采集数据,通过统计分析解析了公交系统运行服务的过程和出行者出行的内在特性;基于对出行策略的定义,分析了出行者出行对时间、成本与体能消耗三方面的预算对其出行决策的影响;探讨了公交运行服务质量评价的系统边界,以价值、能耗与信息为基本维度,提出了评价公交运行服务质量的三维体系架构;最后分析提出三大预算对于从公交出行生理因素和心理过程两个基础层面揭示出行行为机理,是从乘客对服务感知视角对公交运行服务质量进行评价的更为客观有效的手段.     

基于乘客感知的常规公交服务质量评价方法

针对当前城市常规公交服务质量评价的理论研究与实践多侧重设施指标水平的统计分析,而对公交服务主体——乘客感受考虑不足的现状,引入＂顾客感知服务质量＂的概念。提出了以乘客感知和期望之差为基本依据的常规公交服务质量评价方法,建立了公交服务质量评价体系。选取上海市北安跨线和成都市119路公交线路为案例,通过分析实际调查数据,量化评价了两条公交线路的服务质量,验证了评价方法的可行性与有效性。案例研究表明,票价、候车时间、车内空间、换乘便利性是公交服务亟待改善的问题。     

单向交通复合指标评价模型

综合出行者感受直观的速度、距离、时间指标与表征路段拥挤状态的饱和度指标,提出基于出行者对交通通畅主观感受的复合指标评价模型,并给出案例,说明模型的可操作性.     

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为系统研究城市公交车服务质量的影响因素及作用机理,借鉴SERVPERF服务质量分析方法,从乘客感知角度设计了公交车服务质量的5维度影响因素（有形性、保证性、可靠性、响应性和关怀性）测量模型.通过相关性分析发现,可靠性维度与公交车乘客感知总体服务质量的相关性最高,而响应性最低;同时,有形性、保证性与可靠性呈高度正相关.结果表明,城市公交要继续加强服务的可靠性管理、不断提高司乘人员的服务意识;同时需要强化公交车车体形象管理并采取人性化管理措施,对提高城市公交的乘客感知服务质量具有积极的促进作用.     

Using AHP to measure the perception gap between current and potential users of bus services

Abstract

This study develops a multicriteria evaluation of user perception towards bus transit services and measures the gap in the perceptions held by current and potential users. A review of the transport quality literature indicates that both preference and satisfaction measures have been implemented to provide a comprehensive perception-based evaluation of bus quality. Although attempts have been made to evaluate user perception through a separate analysis of each (preference and/or satisfaction), the application of multicriteria quality measures are limited. A multicriteria quality measure not only offers more than just information on the daily experience of users but also knowledge of the internal process of quality evaluation (drivers/barriers). The multicriteria measure utilises the data of 512 questionnaires, whereby user perceptions were expressed through judgments of importance and satisfaction based on a set of 29 quality indicators classified into six attributes. Firstly, the study develops analytical hierarchy process (AHP) models to measure user preference. Secondly, a weighted perception index (WPI) of both preference and satisfaction is developed through a multicriteria model. Finally, multivariate analysis of variance (MANOVA) is conducted to identify the level of variation in the perception of both current and potential users towards bus service quality. The results show that although both current and potential users place a higher importance towards the same indicators, they do not share the same pattern of preferences (values and/or order). In addition, the study found that the interaction between preferences and satisfaction generated new patterns of subjective evaluation, and that these patterns vary significantly by user category.     

基于视错觉的公路隧道中部安全控速方法

公路隧道中部低照度、环境单调的特点,容易导致驾驶人产生严重视错觉,从而低估车速,引发交通事故.高频视觉信息容易导致驾驶人高估车速,而中、低频视觉信息则会导致驾驶人低估车速,但不同频率视觉信息,不同照度水平对公路隧道中部行车环境中驾驶人的车速感知影响缺乏定量分析.文中利用3ds Max软件制作公路隧道中部行车仿真模型,利用E-prime软件进行基于极限法的车速感知心理物理实验,并用实车试验数据校核了模型精度,对高频视觉信息与高、中频组合视觉信息在不同照度水平(100％,50％,25％标准照度)条件下的速度感知、反应时进行了对比研究.实验结果显示:公路隧道中部的速度感知主要由高频视觉信息决定,在100％标准照度条件下高频视觉信息的车速高估约为20％,在加人中频视觉信息后,车速高估情况趋于合理,约为14％;照度变动对速度感知和反应时均有显著影响,显著度分别为0.008和0.013,照度条件越好,车速高估越低,反应时越短.