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1.
Abstract

This paper presents a definition of sustainable urban freight transport (SUFT), based on the existing theories and concepts, and develops an indicator set that describes SUFT. The definition of SUFT makes a categorisation of actions possible which enables actors to select effective strategies towards SUFT. The indicator set consists of two levels: impact indicators – which describe how the urban freight transport violates the principles of sustainability; and performance indicators – which describe different categories determining the characteristics and performance of the urban transport system. A literature study analyses the characteristics determining the performance of actors in the urban freight transport chain. Knowing the current state and improvement potential of the urban freight transport system are prerequisites for defining successful strategies and implementing effective actions.  相似文献   

2.
Abstract

The ongoing process of port reform has led to an increasing number of publicly owned but corporatised port authorities (PAs). The performance effects of corporatisation have been analysed, for example, for the airports industry, often showing positive effects. This paper reviews the literature on port reform and the relationship between port governance structures and performance. It also presents a first case study on the effects of corporatisation of PAs, namely for the Port of Rotterdam Authority, a publicly owned but corporatised port development company. In 2004, this organisation was transformed from a municipal department to an independently operating company. The performance indicators to evaluate the effect of this corporatisation include market share, turnover, operating costs, profits, and investments. These indicators are evaluated for two periods, one prior to the corporatisation (1997–2003) and the other afterwards (2005–11). The comparison of these two periods shows that corporatisation has led to significant improvements of all performance indicators. The findings derived from this case study are relevant for the ongoing discussion on port governance models.  相似文献   

3.

This paper tries to construct a performance evaluation procedure for highway buses with the financial ratio taken into consideration. First, a conceptual framework is redeveloped, based on the one created by Fielding et al ., to help form evaluation items and performance indicators involving both transport and finance aspects. Second, the total performance is divided into three major kinds of efficiency?production, marketing, execution?according to the cycle of operation activities. Third, to overcome the problems of small sample size and unknown distribution of samples, the grey relation analysis is used to select the representative indicators, and the TOPSIS method is used for the outranking of highway bus. In addition, a case study is conducted using four highway bus companies as example. The empirical result shows that the performance evaluation for highway buses could become more comprehensive if financial ratios are considered.  相似文献   

4.
BOOK REVIEW     
Abstract

Nationwide Transport Surveys and Time‐Use Surveys both reflect the daily agendas and schedules of the reporting individuals and should therefore yield comparable indicators of travel behaviour; for instance: immobility rate (share of persons not leaving the home on any one day), daily travel time, and number of trips per day. These two surveys exist in three countries from the same time period: Belgium, France, Great Britain. The comparisons demonstrate that they tell parallel stories, but that the levels of the variables are significantly different with lower immobility rates and longer travel times reported in the Time‐Use Surveys. These surveys should therefore be integrated in the analysis of travel behaviour analysis as a crucial yardstick. In Europe, where Nationwide Travel Surveys are intermittent and not harmonized, the harmonised Time‐Use Surveys allow for crucial European‐wide comparisions across time and space.  相似文献   

5.
Abstract

In large metropolitan areas, public transit is a major mode choice of commuters for their daily travel, which has an important role in relieving congestion on transportation corridors. The purpose of this study is to develop a model which optimizes service patterns (SPs) and frequencies that yield minimum cost transit operation. Considering a general transit route with given stops and origin-destination demand, the proposed model consists of an objective total cost function and a set of constraints to ensure frequency conservation and sufficient capacity subject to operable fleet size. A numerical example is provided to demonstrate the effectiveness of the developed model, in which the demand and facility data of a rail transit route were given. Results show that the proposed model can be applied to optimize integrated SPs and headways that significantly reduce the total cost, while the resulting performance indicators are generated.  相似文献   

6.
Z. J. Haritos 《运输评论》2013,33(3):213-229
Abstract

In most economies, the ownership and control of state enterprises has been an important government policy instrument. This has been particularly true in the transportation sector in which governments have intervened extensively through the acquisition and creation of state enterprises. While the genesis of and rationale for transportation state enterprises have varied from country to country and even from time to time within each country, at present, most governments do exercise a significant degree of ownership and control in transportation. Some of these enterprises enjoy monopoly status and others are in competition with and behave similarly to their private sector counterparts.

Consequently, and in recent years, questions have been raised about government intervention in the market‐place as it relates to effective management control and accountability of state enterprises. Questions have also been raised about the continuing need for transportation state enterprises and some governments have promoted some form of divestiture (privatization).

This paper addresses the accountability and control of transportation state enterprises based on the Canadian experience. It discusses their role and policies related to diversification, financing and divestiture, and the need for development of a performance framework.  相似文献   

7.
Abstract

This paper estimates comprehensive operational performance measures for transport services. A network efficiency approach is used to analyze the production efficiency, service efficiency, and operational efficiency in a unified framework to reflect the transportation service characteristics of airline operations. We show how a modified version of the network data envelopment analysis model can be utilized for evaluating the performance of air route operations. This study considers 15 air routes operated by a domestic airline in Taiwan to highlight the value of the approach. The results of the analysis show the inputs and consumed outputs leading to production inefficiency and service inefficiency respectively as well as the magnitudes of excesses and shortfalls.  相似文献   

8.
ABSTRACT

This paper measures the performance of taxi operators using data envelopment analysis (DEA) and the improvement of performance based on benchmarks. This includes basic DEA models and a cross efficiency model. In the present work, a sample set of 20 taxi operators are considered, and an evaluation indicator framework is constructed, which mainly involves the identification of decision-making units (DMUs) and the determination of input-output variables. The combined results of multiple DEA models are used to evaluate the performance of taxi operators in a case study of Harbin. The results highlight the significance of the combined application of multiple DEA models, especially a cross-efficiency model that can obtain more objective efficiency values. Finally, the benchmarking method is used to capture the achievements of best-performing operators and provide valuable improvement recommendations for inefficient operators. Conclusions provide a suitable basis for the operation and management of the taxi market.  相似文献   

9.
Abstract

This paper develops a heuristic algorithm for the allocation of airport runway capacity to minimise the cost of arrival and departure aircraft/flight delays. The algorithm is developed as a potential alternative to optimisation models based on linear and integer programming. The algorithm is based on heuristic (‘greedy’) criteria that closely reflect the ‘rules of thumb’ used by air traffic controllers. Using inputs such as arrival and departure demand, airport runway system capacity envelopes and cost of aircraft/flight delays, the main output minimises the cost of arrival and departure delays as well as the corresponding interdependent airport runway system arrival and departure capacity allocation. The algorithm is applied to traffic scenarios at three busy US airports. The results are used to validate the performance of the proposed heuristic algorithm against results from selected benchmarking optimisation models.  相似文献   

10.
Abstract

Airport slot misuse disturbs the efficient and continuous operation of capacity-constrained airports, leading to congestion and delay problems. Deviations from the coordinated schedule in regional airport systems that feature seasonal demand and delays in certain peak periods are studied in this article. The Greek airport system is considered as a case study. Deviations are quantified by computing the difference between scheduled and actual aircraft arrival times as well as the hourly slot capacity utilization ratio. Two collective indicators for airport benchmarking are proposed. An in-depth analysis of slot allocation deviations and the delays they cause is carried out for a representative sample of airports that are classified according to the proposed indicators. A brief discussion on potential measures to mitigate slot misuse is also presented.  相似文献   

11.
Ian G. Heggie 《运输评论》2013,33(2):139-160

The road sector reforms undertaken by a growing number of developing and transition countries during the past 10-20 years are described. The problems these countries share with industrialized countries and the additional factors that also affect them--large backlogs of deferred maintenance, an acute shortage of funds and dysfunctional road agencies--are also described. The paper then describes how these countries have restructured road management by separating planning and management of roads from implementation of works, provided road agencies with more autonomy, created more effective oversight, introduced annual performance agreements and turned the road agency into a more commercial organization paying market-based wages. In relation to road financing, road tolls and toll roads are touched on briefly before the new style road funds that have recently been set up in these countries are detailed. The paper then describes how they were established and their basic operating modalities--revenues only from charges related to road use (with one notable exception), no abstraction of revenues from other sectors, proactive management and oversight provided by a board of directors that includes members nominated by road users and the business community.  相似文献   

12.

Railway scheduling faces new challenges as competition and, in many parts of the world, privatisation require ever better results, both in terms of minimising the resources used and maximising the performance achieved by those resources. It is therefore surprising that in practice railway scheduling tasks appear to be performed largely without the use of optimizing models. This paper takes two different perspectives, a case study of user needs from the UK railway industry and a comparative analysis with mass transit scheduling systems, to consider why this might be and assesses what the future prospects are for computer aided railway scheduling.

A number of conclusions are drawn: that optimization models need to be integrated with software packages that meet schedulers' data management needs; that researchers need to work with commercial developers to achieve this integration; that there needs to be an emphasis on extending models to cover more real‐life circumstances; and that solutions with international applicability should be sought.  相似文献   

13.
Abstract

The concepts of ‘customer satisfaction’ (CS) and ‘quality of life’ (QOL) have both been used, on a limited basis, in strategic planning and performance measurement at state departments of transportation. However, the meanings and usefulness of these concepts are still unclear or evolving to many practitioners. Based on a review of the literature and customer opinion data collected for various transportation studies in the USA and Europe, this paper offers two important contributions to the transportation literature. The paper clarifies the relationship between the CS and QOL concepts, placing CS in the broader context of customer opinions and subjective well-being. The paper then identifies six categories of survey tools for collecting customer opinions, describing how each can be used within a performance management framework to reveal the QOL impacts of transportation decisions. Agencies can use the definitions, conceptual relationships, performance measures, and decision-making processes discussed in this paper to refine their performance management programs, to better understand customer and public perceptions, and to make systematic progress toward their QOL oriented goals.  相似文献   

14.
Claude Kaspar 《运输评论》2013,33(4):373-379
Abstract

Transport companies are finding themselves compelled to attach growing importance to the education and further education of their staff in the face of transport's increasing complexity, of its increased market‐economic thinking where competition takes the place of collective economic thinking and of financial constraints.

The necessity for increased education and further education of the managerial staff of the transport companies has also led to a two‐fold division of this task in Switzerland: on the one side the academic education in universities, on the other the further education of the management staff by the transport companies.

The extent of education and research done on “transport” varies in Swiss universities. Special courses are given at the St. Gall Graduate School of Economics, Business and Public Administration in transport economics and at the Technical Universities of Zürich and Lausanne in transport engineering.

Special further education in transport management is given by Swissair and Swiss Federal Railways.  相似文献   

15.
Abstract

In recent years, different initiatives have been carried out to develop Safety Management System guides or standards for coach and bus companies. They all consist of a set of safety and management requirements to be followed by organizations. However, none of them offers a complete set of tools to evaluate the safety level of the company and find the main weak points in order to improve them. The INSIA (Automotive Research Institute of Madrid, Spain) has developed a complete model that includes not only a set of elements that determine the safety level of the company but also a set of indicators and criteria to evaluate these elements by a team of auditors. The model allows companies to measure their safety level, find the weakest points and propose improvement actions.  相似文献   

16.
Abstract

To understand fully passengers’ perceptions and expectations of the bus service quality in Taipei, business managers and governmental agencies must seek a proper scale that can reflect passengers’ opinions accurately. This study develops and tests a service quality scale designed for a city bus transit system in Taipei. Churchill’s paradigm and a focus group interview were combined into a multistage scale development procedure. Based on the procedure, Taipei city buses were selected as the example, for which a service quality scale was developed. The final scale contains four dimensions and 20 items. These four dimensions are ‘interaction with passengers’, ‘tangible service equipment’, ‘convenience of service’ and ‘operating management support’. Finally, the results of scale development and the managerial applications of the service quality scale for the city transit system are discussed.  相似文献   

17.

London Underground is currently going through a revolution in its fare collection systems. Magnetically encoded tickets are being introduced, obtainable from ticket office or self‐service machines, which are then checked automatically at start or finish of journey in the Underground's central zone. The microprocessor controlled equipment handles all accounting aspects of fare collection, because it is all part of a computer‐based network with centralized monitoring and control. The machinery was progressively installed from April 1987 to December 1988. This paper describes the history of the system, describes the new ticket and issuing machines, as well as discussing the development and project management tasks involved.  相似文献   

18.
Abstract

This article applies a methodology for selecting carriers for the transportation of dangerous goods by road, with a special focus on risk management aspects. The methodology makes use of Stated Preference techniques and verifies the most critical risk-related variables influencing decision-making from the shippers' point of view. It embraces the planning and execution stages, an evaluation of the contracted company and a feedback process. The methodology was effectively applied to the case of liquid fuel shippers in the Brazilian middle-west region where it proved possible to identify which dangerous goods road transport company to contract in accordance with the risk management factors selected by the decision makers.  相似文献   

19.
Abstract

The aim of this paper is to measure ‘overall’ success of a public private partnership (PPP) transport projects using four case studies. All four case studies are PPP toll roads from four different EU countries (UK, Spain, Portugal and Greece). The case studies have been analysed using a manual Qualitative Comparative Analysis approach. According to the paper, three different perspectives have been used to measure the success of a project, that is, project management perspective, stakeholder perspective and contract management perspective. The ‘overall’ success has then been deduced by bringing these three perspectives together as a holistic approach. The findings are presented in the form of a matrix and the final outcome of the paper shows a simple methodological approach that can be used to measure success of a PPP transport project. Since the study takes more of a qualitative approach, researcher bias and perceptions have a major role to play in the final outcome. However, to reduce ‘biasness’, quantitative measures have also been used to quantify the Key Performance Indicators and performance measures in the case studies. It is hoped that the study makes a valid contribution to the areas of transport PPPs and performance measurement.  相似文献   

20.

The state of the art in airport terminal design has essentially remained unchanged since the 1970s, relying on the use of detailed simulation together with empirical and statistical formulae for sizing the terminal. Air transport has altered considerably since then, with increased use of air travel for both business and leisure, together with the increased use of ‘hub’ terminals in which the terminal acts as an interchange stop on a journey involving several flights. The use of simulation involves a detailed analysis of the terminal design under one set of conditions. To change the design or operating conditions involves a complete resimulation using the new design parameters which is time consuming and computationally expensive.

By using a knowledge based approach, a system can be provided which has the flexibility and speed required to explore the consequences of implementing design decisions in a variety of conditions, together with the ability to use and alter facility sizing methodologies to reflect current and future design guidelines.  相似文献   

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