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Comprehensive service quality evaluation of public transit based on extension cloud model

Hu Xinghua, Chen Xinghui, Zhao Jiahao, Yu Kun, Long Bing, Dai Gao

Archives of Transport

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2022

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Vol. 61, iss. 1

103--115

EN

Prioritizing the development of public transit and enhancing its attractiveness is an important way to solve the problem of urban traffic congestion and achieve sustainable development. To improve the service quality and overall operational efficiency of urban public transit, an evaluation index system related to the comprehensive experience of passengers, service supply quality of public transit enterprises, and supervision of management departments was introduced from both the demand and the supply of public transit travel services. Based on the data distribution characteristics of the boxplot in statistics, the evaluation level and corresponding value range of each index were determined, and the comprehensive weight of the index was determined using the linear weighting method combining the analytic hierarchy process and the entropy weight method, so as to reduce the influence of single weighting method on the evaluation results of comprehensive service quality of public transit. An evaluation method of public transit comprehensive service quality based on the extension cloud model was established. The evaluation results of the model were obtained by calculating the cloud affiliation and comprehensive certainty, and a reliability factor was used to test the evaluation results, which solved the problem of randomness and fuzziness in the process of comprehensive service quality evaluation of public transportation and made the evaluation results closer to the reality. Finally, the established comprehensive evaluation model was applied to a city for example analysis, and the corresponding evaluation level was obtained as good. The value of the reliability factor in the model was less than 0.01, indicating that the model has good applicability and a certain application value for the comprehensive service quality evaluation of public transit. The evaluation method fully considered a variety of evaluation indicators, specified the evaluation level of comprehensive service quality of public transit, and the evaluation results provide a theoretical basis for public transport enterprise to make targeted improvement measures.

2

P&R parking and bike-sharing system as solutions supporting transport accessibility of the city

Macioszek Elżbieta, Kurek Agata

Transport Problems

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2020

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T. 15, z. 4, cz. 2

275--286

EN

The transport accessibility of cities decreases with the increase in road traffic. Planners, traffic engineers, and road managers are looking for solutions that will reduce congestion on city streets without limiting transport accessibility to the city center. The article presents an overview of solutions used in Poland and abroad that aim to encourage people who travel by car to the city center to use other means of transport. The solutions were identified that can contribute to reducing road traffic in the city without limiting its transport accessibility based on the area inventory in Krakow. The next part of the article analyzes the use of P&R parking and the bike-sharing Wavelo system in Krakow in 2018. The results of the conducted analyses indicate that the most entrances to the P&R parking in Krakow were in the morning hours, whereas the most exits from these parking were in the afternoon. The holiday months were characterized by a lower use of parking space compared with the remaining months. These conclusions may indicate that the people using the analyzed parking lots are mainly commuters. On the contrary, the analysis of the use of the bike-sharing Wavelo system in Krakow allows for the conclusion that a large numer of people used rental bikes for short journeys. These trips can complement the journeys made with the use of public transport or as a continuation of the journey after leaving the car in the P&R parking. Investments and development of this type of solutions may be an incentive for people traveling by car to use another means of transport.

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Evaluating accessibility of small communities via public transit

Danesi Antonio, Tengattini Simone

Archives of Transport

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2020

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Vol. 56, iss. 4

59--72

EN

Accessibility to and from urban centres allows small communities’ dwellers to participate in primary activities and use essential services that are not available on-site, such as educational, work and medical services. Public transport networks are supposed to enhance accessibility and pursue equity principles, overcoming socio-economical differences among people that can exacerbate during crisis. In this paper a methodology is proposed and implemented to assess small communities’ accessibility via public transit. A metric is defined based on the calculation of total travel time, taken as a proxy of travel impedance, with consideration of in-vehicle time, schedule delay and users’ arrival and departure preference curves (i.e. time-of-day functions). A “rooftops” model is specified and implemented under the assumption that travellers cannot accept (scheduled) late arrival or early departure time penalties before and after the participation in their activities in the main urban centre, as many activities rarely admit time-flexibility. Also, a public transport specific impedance factor (PTSIF) is proposed, in order to account for travel impedance determinants, which are a consequence of service scheduling and routing decisions and not due to inherent geographical and infrastructural disadvantages affecting car users too. An application of the methodology for the city of Cesena, Italy, and 90 surrounding small communities is presented. The city is served by train and bus services. Assessment of small communities' accessibility based on both total travel time and PTSIF is presented and discussed. This practice-ready quantitative method can help transport professionals to evaluate impacts on small communities’ accessibility in light of public transport service changes or reduction. Quantitative approach to support strategic decisions is needed, for example, both to assess public transport strengthening politics against depopulation of rural and marginal mountainous areas and to mitigate the effects of possible increasing concentration of services towards high-demand lines, which may follow as a consequence of budget cuts or contingencies, such as vehicle capacity reductions required by sanitary emergencies.