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Erma Suryani Rully A. Hendrawan Philip F.E. Adipraja Arif Wibisono Basuki Widodo Rarasmaya Indraswari 《运输规划与技术》2020,43(7):670-697
ABSTRACT This paper is designed to evaluate and improve the effectiveness of transportation systems and reduce traffic congestion through the use of simulation models and scenario development. A system dynamics framework is used to test and evaluate the alternatives of future strategies for the city of Surabaya, Indonesia. Some factors affecting the effectiveness of transport systems include operational effectiveness and service effectiveness, as well as uncertainty. To improve the effectiveness of transportation systems, several strategies can be implemented, such as subsidizing public transportation, increasing the cost of private vehicle parking fees, raising taxes on private vehicles, and reducing delays in public transportation through scenario development. Scenario results show that, by pursuing these strategies, effectiveness could be improved by 80% as the impact of the increase in operational and service effectiveness, helping to mitigate traffic congestion. Congestion could be reduced to 70% (on average) due to the decrease in daily traffic. 相似文献
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Patar Ebenezer Sitorus Tuyen Quang Le Jin Hwan Ko Tri Quang Truong Hoon Cheol Park 《Journal of Marine Science and Technology》2016,21(1):115-128
A lab-scale flapping-type turbine with a semi-passive activation mode has been designed and implemented. A non-linear dynamic model, developed in our previous work, is validated by a series of experiments along with computational fluid dynamics (CFD) simulations. Previously, the dynamic model was used only to estimate the dynamic response of a flapping-type turbine. In this work, the applicability of the dynamic model is extended to estimate the hydrodynamic forces, extracted power, and efficiency. It was demonstrated from a comparison of the CFD results and measured values that the dynamic model based on a quasi-steady approach estimates the aforementioned performance parameters of measurements well in cases particularly with a low effective angle of attack, thus demonstrating the usefulness of the dynamic model for a flapping-type turbine at an early stage. 相似文献
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Muhamad Rizki Tri Basuki Joewono Prawira Fajarindra Belgiawan Muhammad Zudhy Irawan 《国际交通安全学会研究报告》2021,45(2):267-276
Research provides evidence that ride-sourcing has not only substituted for private transport but also public transport. For further investigation of this substitution effect, this paper explores the travel behaviour of ride-sourcing users and those users' socio-demographic characteristics as well as perception of the usefulness of ride-sourcing based on the users' previous modes of transport before ride-sourcing existed. For these purposes, the study collected data using a questionnaire survey in Bandung City in 2018. We found that substitution from public transport exists for younger travellers, while substitution from private transport is most likely associated with infrequent and higher-income travellers. We also found open spaces, a green environment and high interaction society in the residential environments that have more association with high-income travellers, thus associated with lower use of ride-sourcing for former private transport users. This study found that travellers who resided in areas with similar, high-income characteristics tend to have a positive appreciation of ride-sourcing. It appears that the increasing perceived usefulness does not straightforwardly increase the frequency of usage. Therefore, travellers who lived in a more high-end and active social environment might appreciate the role of ride-sourcing services in some of their trips that complement another daily trip. 相似文献
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Abstract This paper explores user satisfaction with making use of paratransit in Bandung, Indonesia. User perceptions of attributes are analyzed using factor analysis to find representing attribute types and factors of service quality. Ordinal probit analysis is employed to explore the characteristics of users regarding their perception of satisfaction with the paratransit service. Binary logistic analysis is undertaken to predict users’ choice probability in making use of paratransit in the future when there is a service improvement. The study reveals that what may be of importance in developed countries carries a different weight of importance for paratransit users. This fact can be explained by describing the characteristics of users that expressed their satisfaction, which also explains the target market for this mode. The analysis reveals the notion that financial motives seem to dominate when users select to use paratransit. 相似文献
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The rapid pace of motorization throughout the world has changed travel behavior, which in turn has influenced every aspect
of transport operations. This impact has also increasingly challenged the future existence of such road-based urban public
transport as paratransit due to its characteristics and problems, especially in developing countries. Since creating satisfied
users can help retain paratransit’s existence, this research aims to explore user satisfaction with paratransit service in
order to anticipate future implications for its competition with motorization in Bandung, Indonesia. It establishes important
factors and attributes to explain user perceptions and priorities regarding the service. Its hypotheses explain how users
measure paratransit’s quality of service, inferring that they are likely to continue to use it. Even though users are dissatisfied
with several aspects of paratransit, and the impact of competition has been strong, loyal users can still be found. By considering
the findings, existing problems of inappropriate-quality service can be addressed to satisfy users’ expectations. The study
also suggests some anticipation of winning the competition with motorization. 相似文献
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Segmentation of paratransit users based on service quality and travel behaviour in Bandung,Indonesia
Using a data-set collected among paratransit users in Bandung, Indonesia, this paper explores the impacts of paratransit users' negative experiences and dissatisfactions with their paratransit usage pattern. Segmentation and ordered probit analyses are used to examine the impacts of users' opinions on service quality on their trip-making behaviour. The results indicate that users are divided into six segments – namely, the unlucky, the young user, the experienced, the adapter, the infrequent user and the captive. The results further indicate that paratransit users, especially women, perceive negative experiences related to on-time performance (departure and arrival time) and security issues related to vehicles. Despite these dissatisfactions and negative experiences, they are still likely to use paratransit as part of their daily life. Two paratransit market segments (the adapter and the captive) are also likely to result in more trips using paratransit. The study offers several strategies and recommendations that can improve the current paratransit system so that it can better serve local needs. 相似文献
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