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1 – 10 of over 2000Kazuaki Miyamoto, Surya Raj Acharya, Mohammed Abdul Aziz, Jean-Michel Cusset, Tien Fang Fwa, Haluk Gerçek, Ali S. Huzayyin, Bruce James, Hirokazu Kato, Hanh Dam Le, Sungwon Lee, Francisco J. Martinez, Dominique Mignot, Kazuaki Miyamoto, Janos Monigl, Antonio N. Musso, Fumihiko Nakamura, Jean-Pierre Nicolas, Omar Osman, Antonio Páez, Rodrigo Quijada, Wolfgang Schade, Yordphol Tanaboriboon, Micheal A. P. Taylor, Karl N. Vergel, Zhongzhen Yang and Rocco Zito
R.M. Martinod, Olivier Bistorin, Leonel Castañeda and Nidhal Rezg
The purpose of this paper is to propose a stochastic optimisation model for integrating service and maintenance policies in order to solve the queuing problem and the cost of…
Abstract
Purpose
The purpose of this paper is to propose a stochastic optimisation model for integrating service and maintenance policies in order to solve the queuing problem and the cost of maintenance activities for public transport services, with a particular focus on urban ropeway system.
Design/methodology/approach
The authors adopt the following approaches: a discrete-event model that uses a set of interrelated queues for the formulation of the service problem using a cost-based expression; and a maintenance model consisting of preventive and corrective maintenance actions, which considers two different maintenance policies (periodic block-type and age-based).
Findings
The work shows that neither periodic block-type maintenance nor an age-based maintenance is necessarily the best maintenance strategy over a long system lifecycle; the optimal strategy must consider both policies.
Practical implications
The maintenance policies are then evaluated for their impact on the service and operation of the transport system. The authors conclude by applying the proposed optimisation model using an example concerning ropeway systems.
Originality/value
This is the first study to simultaneously consider maintenance policy and operational policy in an urban aerial ropeway system, taking up the problem of queuing with particular attention to the unique requirements public transport services.
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Genevieve Giuliano, Burkhard E. Horn, Hirokazu Kato, Masanobu Kii, Yoshikuni Kobayashi, Dominique Mignot, Kazuaki Miyamoto, Akira Okada and Daniel Sperling
Luis Cruz, Eduardo Barata and João‐Pedro Ferreira
Services provided by urban public road passenger transport companies in Portugal are associated with widely differing economic and financial outcomes. The objective of this paper…
Abstract
Purpose
Services provided by urban public road passenger transport companies in Portugal are associated with widely differing economic and financial outcomes. The objective of this paper is to characterize these differences and discuss the potential contribution offered by the funding model implemented (including how the services provided are being subsidized).
Design/methodology/approach
The data available in the management and financial reports published by the six existing Portuguese corporations whose main object is to provide a public road transport service were used to establish a set of performance indicators. The paper takes into account three dimensions: resource‐efficiency, service‐effectiveness and resource effectiveness.
Findings
The comparative analysis implemented contributes crucially to an improved understanding of the current idiosyncrasies of urban public road transportation systems in Portugal, with a special emphasis on the productivity and performance results of different public management approaches.
Originality/value
The originality of this paper arises from the case studies presented to support the debate on the influence of local vs central public funding approaches on Portugal's urban public road transport companies’ performance.
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Discusses concerns regarding the effect of the growth of private car use on the usage of urban public transport. Compares passenger transport marketing activities and the London…
Abstract
Discusses concerns regarding the effect of the growth of private car use on the usage of urban public transport. Compares passenger transport marketing activities and the London Transport Executive (LTE) and the four UK Passenger Transport Executives (PTEs). Declares that motorists will only be prepared to acknowledge that real improvements have been achieved after large‐scale infrastructure investment have been made, allowing more modern travel modes to be adopted. Debates evidence of marketing practice in the PTEs and LTE. Posits that, at present, marketing exists as a nascent, largely misunderstood function in urban public transport management.
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Bartosz Dziugiel, Anna Maria Mazur, Adam Liberacki, Piotr Ginter, Agata Utracka, Sylwester Wyka, Vittorio Di Vito and Aniello Menichino
Process of building and then implementation of integrated multimodal, passenger-centred and predominantly sustainable transport system will require a specific effort to be input…
Abstract
Purpose
Process of building and then implementation of integrated multimodal, passenger-centred and predominantly sustainable transport system will require a specific effort to be input in preparation, especially if it covers new entrants like passenger Urban Air Mobility. This paper aims to address the first step which is the identification of barriers to be overcome to turn the concept into reality.
Design/methodology/approach
Comparison of the current state-of-the-art in transportation, Information and Communication Technologies as well as other city planning domains to the forecasted ecosystem, described in the form of scenarios where base for definition of necessary actions, challenges as well as potential barriers and obstacles were identified and thoroughly specified.
Findings
Barriers grouped in five categories: policy, digitalisation, transportation technologies, integration technologies and passengers’ needs allow for formulation of the relevant roadmaps defining optimal development path towards fully integrated multimodal, passenger-centred and sustainable transport system.
Research limitations/implications
Conclusions can be a starting point in studies towards development of roadmap for implementation of truly integrated municipal transport system both sharing the resources as well as high-level objectives.
Practical implications
Conclusions can be exploited in various areas starting from preparation of strategies in cities aspirating to be smart, through definition of technology development priorities by relevant agencies ending with industry actors looking for better trimming their business.
Originality/value
The identified barriers as derived from detailed investigation enable deep insight into the total transport system vision in which Urban Air Mobility integrated within urban mobility ecosystem is considered as game-changing factor having large potential to contribute to both making cities smart and sustainable.
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Edoardo Croci, Sabrina Melandri and Tania Molteni
Urban areas are responsible for significant amounts of greenhouse gas (GHG) emissions, but cities can have quite different values of carbon footprints. The purpose of this paper…
Abstract
Purpose
Urban areas are responsible for significant amounts of greenhouse gas (GHG) emissions, but cities can have quite different values of carbon footprints. The purpose of this paper is to identify the determinants of urban GHG emissions in order to explain these differences.
Design/methodology/approach
Seven global cities – Bangkok, Chicago, London, Madrid, Mexico City, Milan and New York City – have been included in the paper's sample. These cases have been chosen in order to represent a variety of characteristics and contexts of developed and developing countries and according to data availability. A first level of analysis regards local GHG emission inventories, which attribute emissions to activity sectors. Sectorial emissions are then evaluated to quantify the relevance of several determinants: climate conditions, urban form, economic activities in place, state of technology, mobility and housing infrastructures and costs, and income and life style.
Findings
Determinants show different weights in influencing behaviours at city level, and ultimately depend on economic, technical, social and cultural factors. Beside a significant role of climate conditions, urban density appears as the main determinant in shaping residential emissions from direct fuel consumption, whereas, for electricity, consumption patterns and technological features of power generation play a major role. For ground transport, urban form affecting mobility patterns and technological features of the vehicle stock stand out as the most significant determinants.
Originality/value
The paper provides a deep insight into urban GHG emission values, making use of a comprehensive set of urban data and highlighting several areas which could possibly be targeted in cities' GHG reduction policies. An enhanced and widened set of data could improve the paper's results in a significant way.
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New services design and development are difficult to plan, execute, measure and evaluate. Particularly, new services that are capital-intensive and involve a long gestation and…
Abstract
Purpose
New services design and development are difficult to plan, execute, measure and evaluate. Particularly, new services that are capital-intensive and involve a long gestation and development time are considered extremely risky. The purpose of this paper is to discuss a list of innovative practices in various managerial aspects in designing, planning and development of a large scale infrastructure intensive public transportation service. A contemporary new public transportation service development is discussed as evidence of proven and benchmarked criteria.
Design/methodology/approach
This is a technical paper, where theoretical foundations of best practices in new service development project are discussed and supported by practice-based evidences from a real-life urban transportation project. A case study approach is adopted with secondary data.
Findings
Worldwide during and after economic recession of 2008, several projects were stalled or abandoned. The inference through this work is that through efficient management practices, a large capital-intensive new service development project can be made successful even during a turbulent economy in a region marred by more challenges than elsewhere.
Practical implications
Several issues in large scale services development, such as urban transportation are domain specific. Some of the issues faced in urban transportation are common to several Gulf countries; therefore the policy guidelines, managerial practices and development strategies reported in this paper can be replicated in many of them. The commercial impact of the service project is a significant drive towards fuel conservation and to save huge amounts of productive time.
Social implications
Public transportation with a high quality of networked service improves the quality of life to a large extent. Unless certain measurable demands are not met, an affluent society is less likely to endorse public transportation. In addition, endorsement of public transportation is been promoted in several parts of the world as a drive towards a green, energy efficient, low-carbon emission and sustainable environment.
Originality/value
To the best of the authors’ knowledge, new services planning and development is a key operations management topic, on which very little is written about. Particularly no other paper has presented a real-world large scale infrastructure intensive project development to this detail, and along with a theoretical background to benchmark performance and development practices.
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