Vol 10 No 2 (2010)
Vol 10 No 2 (2010)
Articles
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The renewed interest for sustainable transport in Europe is often labelled as mobility management. With this, major attention goes towards the role of employers in the commuting behaviour of their employees. Indeed, employers can encourage a more sustainable commuting by the promotion of alternative modes, like public transport, carpooling and/or cycling, by the designation of an Employee Transport Coordinator, through their location policy, and/or by adapting work schedules and the organisation of telework. An overview of these measures is followed by an analysis of the Belgian situation. The Belgian 2005 questionnaire Home-to-WorkTravel (HTWT) enables us to make an inventory of mobility management in Belgium. The database HTWT contains information on 7460 worksites. Besides having data on modal split, work regimes and accessibility problems, 38 different mobility management measures are checked in the questionnaire. Given that we assume a relationship between accessibility problems and sustainable commuting measures both are incorporated in one analysis. Binary exploratory factor analysis (EFA) is used to make a classification and to obtain a better insight in the structure of the variables. However, no strong link between accessibility problems on the one hand and sustainable commuting measures on the other hand could be detected. Despite the absence of this link, a classification of mobility management measures and accessibility problems has been made. This indicates that employers regularly choose to implement a set of related sustainable commuting measures.
The renewed interest for sustainable transport in Europe is often labelled as mobility management. With this, major attention goes towards the role of employers in the commuting behaviour of their employees. Indeed, employers can encourage a more sustainable commuting by the promotion of alternative modes, like public transport, carpooling and/or cycling, by the designation of an Employee Transport Coordinator, through their location policy, and/or by adapting work schedules and the organisation of telework. An overview of these measures is followed by an analysis of the Belgian situation. The Belgian 2005 questionnaire Home-to-WorkTravel (HTWT) enables us to make an inventory of mobility management in Belgium. The database HTWT contains information on 7460 worksites. Besides having data on modal split, work regimes and accessibility problems, 38 different mobility management measures are checked in the questionnaire. Given that we assume a relationship between...
The renewed interest for sustainable transport in Europe is often labelled as mobility management. With this, major attention goes towards the role of employers in the commuting behaviour of their employees. Indeed, employers can encourage a more sustainable commuting by the promotion of...
Thomas Vanoutrive, Laurent van Malderen, Bart Jourquin, Isabelle Thomas, Ann Verhetsel, Frank Witlox -
Changes in the level of service for scheduled passenger transport influence both operating costs and passengers’ generalised travel costs. This article focuses on the service level and service quality of ferry crossings using empirical data from a survey carried out in Norway in 2008. Using gap analysis we document how both enterprise and household ferry users rate the importance of and their current satisfaction with a number of service aspects concerning Norwegian ferries. Fares, discount schemes and sufficient capacity in the summer are rated as highly important but providing a low level of satisfaction by both user enterprise and household respondents. These elements should, therefore, be paid special attention to when adjusting the service level. The results from the survey are of special interest for the Norwegian transport authorities with respect to revisions of the national ferry service standard, and the survey method can provide a useful tool when evaluating transport initiatives.
Changes in the level of service for scheduled passenger transport influence both operating costs and passengers’ generalised travel costs. This article focuses on the service level and service quality of ferry crossings using empirical data from a survey carried out in Norway in 2008. Using gap analysis we document how both enterprise and household ferry users rate the importance of and their current satisfaction with a number of service aspects concerning Norwegian ferries. Fares, discount schemes and sufficient capacity in the summer are rated as highly important but providing a low level of satisfaction by both user enterprise and household respondents. These elements should, therefore, be paid special attention to when adjusting the service level. The results from the survey are of special interest for the Norwegian transport authorities with respect to revisions of the national ferry service standard, and the survey method can provide a useful tool when evaluating...
Changes in the level of service for scheduled passenger transport influence both operating costs and passengers’ generalised travel costs. This article focuses on the service level and service quality of ferry crossings using empirical data from a survey carried out in Norway in 2008. Using...
Terje Andreas Mathisen, Gisle Solvoll -
Bundling, the process of transporting goods belonging to different flows in a common vehicle (like train, barge or truck) or other unit during part of their journey, is a core business of the transport sector. Operators periodically evaluate their service networks and adjust their bundling operations. The adjustments respond to changing cost structures, changing competition and changing situations in terms of demand and performance requirements. One can distinguish direct bundling from different types of complex bundling, such as hub-and-spoke or line bundling. Complex bundling networks have intermediate exchange nodes and longer routes, but less vehicle routes. The latter means that required network volumes could be lower, service frequencies higher or vehicle loads larger. In this sense, complex bundling allows smaller flows to participate in the advantages of large-scale operations and therefore is an important option to successfully develop intermodal transport. The additional impedance of complex bundling networks has been and still is an incentive for intermodal rail freight operators to switch from complex to direct bundling. However, the flow sizes of many rail relations are too small for direct bundling. If nevertheless direct bundling is applied, trainloads or service frequencies decline and/or small flows will shift to the road sector. In this paper, which focuses on intermodal rail freight networks, we analyse the trends of bundling innovation, and discuss the operational mechanisms in bundling networks and their quantitative impact for the number of train routes, service frequency, the size of trainloads, and required network transport volume. Furthermore we identify which bundling types lead to large trainloads and lowest costs, given certain network transport volumes and certain service frequency requirements. On the basis of a large-scale comparison of bundling networks with large trainloads and ones with lowest costs we conclude, that a large trainload is a good first indicator for lowest cost network: if an intermodal basic bundling network has the largest technically allowed trainload and this is larger than of competing bundling types, the envisaged network is likely to also have the lowest network costs.
Bundling, the process of transporting goods belonging to different flows in a common vehicle (like train, barge or truck) or other unit during part of their journey, is a core business of the transport sector. Operators periodically evaluate their service networks and adjust their bundling operations. The adjustments respond to changing cost structures, changing competition and changing situations in terms of demand and performance requirements. One can distinguish direct bundling from different types of complex bundling, such as hub-and-spoke or line bundling. Complex bundling networks have intermediate exchange nodes and longer routes, but less vehicle routes. The latter means that required network volumes could be lower, service frequencies higher or vehicle loads larger. In this sense, complex bundling allows smaller flows to participate in the advantages of large-scale operations and therefore is an important option to successfully develop intermodal transport. The...
Bundling, the process of transporting goods belonging to different flows in a common vehicle (like train, barge or truck) or other unit during part of their journey, is a core business of the transport sector. Operators periodically evaluate their service networks and adjust their bundling...
Ekki Kreutzberger -
A new choice model is derived, rooted in the framework of Random Regret Minimization (RRM). The proposed model postulates that when choosing, people anticipate and aim to minimize regret. Whereas previous regret-based discrete choice-models assume that regret is experienced with respect to only the best of foregone alternatives, the proposed model assumes that regret is potentially experienced with respect to each foregone alternative that performs well. In contrast with earlier regret-based discrete-choice approaches, this model can be estimated using readily available discrete-choice software packages. The proposed model is contrasted theoretically and empirically with its natural counterpart, Random Utility Maximization’s linearadditive MNL-model. Empirical comparisons on four revealed and stated travel choice datasets show a promising performance of the RRM-model.
A new choice model is derived, rooted in the framework of Random Regret Minimization (RRM). The proposed model postulates that when choosing, people anticipate and aim to minimize regret. Whereas previous regret-based discrete choice-models assume that regret is experienced with respect to only the best of foregone alternatives, the proposed model assumes that regret is potentially experienced with respect to each foregone alternative that performs well. In contrast with earlier regret-based discrete-choice approaches, this model can be estimated using readily available discrete-choice software packages. The proposed model is contrasted theoretically and empirically with its natural counterpart, Random Utility Maximization’s linearadditive MNL-model. Empirical comparisons on four revealed and stated travel choice datasets show a promising performance of the RRM-model.
A new choice model is derived, rooted in the framework of Random Regret Minimization (RRM). The proposed model postulates that when choosing, people anticipate and aim to minimize regret. Whereas previous regret-based discrete choice-models assume that regret is experienced with respect to...
Caspar G. Chorus -
Little more than 25 years ago, the airline industry was highly regulated. The industry is now placed within the market economy due to liberalization and privatization initiatives. Still, large parts of worldwide aviation remain subject to negligible competition. “Too often the instinct of the politician and administrator is to intervene, try to manage [..] the market and to generally distrust its working”. In his book, David Starkie provides a critical analysis of such policy initiatives by addressing the interplay of economic policy and aviation markets.
Little more than 25 years ago, the airline industry was highly regulated. The industry is now placed within the market economy due to liberalization and privatization initiatives. Still, large parts of worldwide aviation remain subject to negligible competition. “Too often the instinct of the politician and administrator is to intervene, try to manage [..] the market and to generally distrust its working”. In his book, David Starkie provides a critical analysis of such policy initiatives by addressing the interplay of economic policy and aviation markets.
Little more than 25 years ago, the airline industry was highly regulated. The industry is now placed within the market economy due to liberalization and privatization initiatives. Still, large parts of worldwide aviation remain subject to negligible competition. “Too often the instinct of...
Guillaume Burghouwt