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Gaining efficiency in transport services by appropriate design and implementation choices

Richard W. Watson, Sandy A. Mamrak
1987 ACM Transactions on Computer Systems  
; that strategies to gain efficiency by reducing functionality result in designs and implementations that have several drawbacks; and that there are few or no effective global system performance gains  ...  Efforts to gain transport service efficiency have used all three approaches.  ...  ACKNOWLEDGMENT Alex Phillips of Lawrence Livermore National Laboratories implemented and instrumented the transport protocol from which we obtained the measurement data presented in the Appendix.  ... 
doi:10.1145/13677.13678 fatcat:7k3zaxlztzh6hibuwizb6wt62u

High Performance Protocol Architecture [chapter]

W. Dabbous, C. Diot
1996 Data Communications and their Performance  
In fact, applications may "classically" choose either the connection-less or the connection oriented transport services. In both cases, S. Fdida et al.  ...  We discuss the consequences of ALF and ILP based design on the way communication systems should be designed for more integration and more efficiency.  ...  The applications require to be involved in the choice of the control mechanisms and not only the parameters of a "standard" transport service.  ... 
doi:10.1007/978-0-387-34942-8_5 fatcat:nz4n5gvwkngrdlsix5qvv3itr4

Shippers' willingness to delegate modal control in freight transportation

Masoud Khakdaman, Jafar Rezaei, Lóránt A. Tavasszy
2020 Transportation Research Part E: Logistics and Transportation Review  
A B S T R A C T This paper investigates the willingness of shippers to delegate control over the transportation mode in freight transportation, using discrete choice analysis.  ...  Firms can use this characterization of freight transportation demand to design service packages that will meet the demands of global supply chains.  ...  A successful implementation in a largescale network requires shippers to move away from a transportation mode choice approach towards a transportation service choice approach.  ... 
doi:10.1016/j.tre.2020.102027 fatcat:lsc5q77gtzdazayrjil7drsygm


Kristina Rimienė, Dalia Bernatonytė
The research allowed to recognize an importance of supply chain management through the stages of supply chain design, integration and coordination, and to state that if not appropriately managed from the  ...  Market globalization and its uncertainties, change of customer requirements, technological progress and other factors contributed to the development of new attitudes to row materials, products and services  ...  The cost efficiency was gained by the scale of economy in mass production. The second stage of competing priorities brought the demand for 'quality' in 1980's (see Figure 1 ).  ... 
doi:10.5755/j01.em.18.3.3799 fatcat:stkd4tmd65fcpite5mxxxck4pu

Model Approach to Quality Provision of Public Passenger Transport

Roman Krajnc, Drago Sever
2010 Promet (Zagreb)  
Constant transportation technique and technology development caused by the need of conformation to the new market conditions is the basis for such an approach.  ...  The model approach for resolving the problems of public passenger transport is provided in a scientific report.  ...  The choice of a particular transport operator and thus type of transport (transport subsystem) is important due to differences in environmental, economic and social efficiency of specific transport modes  ... 
doi:10.7307/ptt.v22i1.165 fatcat:gbc4egoc7jemviymf6rerbolfe

Issues in the design and application of stated adaptation surveys to examine behavioural change: the example of Mobility-as-a-Service [chapter]

Anna-Maria Feneri, Soora Rasouli, Harry J.P. Timmermans
2021 Transport in Human Scale Cities  
Considering growing urbanization levels, it is necessary for planners and policy-makers to implement plans and steer innovations that maximize the spatial and temporal efficiency of transport modes and  ...  ., and Ben-Akiva, M. (2018). D-efficient or deficient? A robustness analysis of stated choice experimental designs. Theory and Decision, 84(22), 215-238.  ...  NOTE Berg Enquete System: software developed by the Design and Decision Support Systems group, Faculty of the Built Environment, Eindhoven University of Technology (TU/e) , the Netherlands.  ... 
doi:10.4337/9781800370517.00018 fatcat:vp7uag6g5jfvlp3nz4mfvf4y4u

Effectiveness of Intersectoral Competition in Shaping the Transport Market

Joanna Hawlena
The structure of the study was based on the selection of three transport routes and the assessment of the effectiveness and efficiency of passenger service on them, under conditions of intersectoral competition  ...  Design/Methodology/Approach: The research was based on the available literature, analyses of statistical data and original empirical research, supplemented by industry interviews.  ...  By identifying the significance of determinants in shaping this process, the value of their impact on the level of efficiency of service supply by entities operating in the discussed modes of transport  ... 
doi:10.35808/ersj/1763 fatcat:lo2rvdtgpfgnhod7ofwnkhdjte

Efficient TTI for 3G Multimedia Applications

Costas Chaikalis
2007 Advances in Multimedia  
An efficient TTI choice can save computational complexity.  ...  It is shown that different operating environments require an appropriate TTI in terms of bit error rate (BER) performance for the following data rates: 28.8 kbps, 64 kbps, 144 kbps, 384 kbps, and 2 Mbps  ...  Furthermore, our analysis shows that in terms of BER, an efficient TTI choice depends on bit rate and operating environment.  ... 
doi:10.1155/2007/95474 fatcat:2m7oipo75zaj5lasiykkgysgmu

Keys to effective transit strategies for commuting

Francesco Bruzzone, Federico Cavallaro, Silvio Nocera
2020 Transportation Research Procedia  
The strategies analyzed in this paper concern prices and fares, service expansion, service improvements, usage of vehicle locators and other technology, changes to the built environment.  ...  The strategies analyzed in this paper concern prices and fares, service expansion, service improvements, usage of vehicle locators and other technology, changes to the built environment.  ...  a more energy-efficient transportation in urban areas.  ... 
doi:10.1016/j.trpro.2020.03.148 fatcat:jmko34gejrbzfc57iq6t7yge34

Looking Deeper at the Reform of New Zealand's Roading System: Driven by Economic Rationalism or an Example of Public Choice Theory in Action

Matthew J Coull
2000 Law review  
The reforms are examined from "a law and economics" perspective, which finds that while efficiency gains may be generated, the proposed institutional design may prevent these gains from being realised  ...  stated "efficiency gains" premise as the overriding motivation for reform.  ...  Any efficiency gains may be diluted by potential increases in agency and transaction costs.  ... 
doi:10.26686/vuwlr.v31i4.5934 fatcat:ixntrbxhxvgzje4amjwd2m6wmq

A Methodology for the Assessment of Rail-road Freight Transport Policies

Umberto Crisalli, Antonio Comi, Luca Rosati
2013 Procedia - Social and Behavioral Sciences  
It uses a specific mode-service choice model to share the freight demand among alternatives (rail-road combined transport, maritime Ro-Ro and road transport) and a service network design model to identify  ...  This paper presents a methodology to evaluate rail-road freight policies such as new services and/or incentives for longdistance freight transport by using a mixed what-if/what-to approach.  ...  Acknowledgements Authors would like to thank the Italian Ministry of Transport for founding this research and Francesco Panico for his support to the application.  ... 
doi:10.1016/j.sbspro.2013.10.611 fatcat:pggk4q4fcrbepgsjahwjoep3he

Identifying transport policy gaps in student travel demand management in South Africa

Ofentse H. Mokwena, Mark Zuidgeest
2020 Journal of Transport and Supply Chain Management  
This enhanced the quality of policy design, evaluation and implementation particularly for integrated transport planning in SA.  ...  (3) there is a need to reform the mobility and access policies for university precincts in South Africa (SA).Conclusion: In essence, the literature review presented heterogenous contexts and techniques  ...  Disclaimer The views and opinions expressed in this article are those of the authors and do not necessarily reflect the official policy or position of any affiliated agency of the authors.  ... 
doi:10.4102/jtscm.v14i0.522 fatcat:ipqmgw6fk5eo5omidpvssqywwi

Distributed supply chain simulation in a DEVS/CORBA execution environment

Bernard P. Zeigler, Doohwan Kim, Stephen J. Buckley
1999 Proceedings of the 31st conference on Winter simulation Simulation---a bridge to the future - WSC '99  
This paper presents design considerations for a supply chain modeling and simulation environment to execute in a parallel and distributed manner on a DEVS/CORBA run time infrastructure.  ...  Such requirements include scalable and efficient model execution and support for flexible future extensibility based on an open industry standard.  ...  Later we return to consider design choices in a full execution environment. Execution of a coupled DEVS model is mediated by coordinator and simulator objects (Figure 1 ).  ... 
doi:10.1145/324898.325274 fatcat:yj7wkapdxvgwxatacbhez3j6hq

Next Generations of Road Pricing: Social Welfare Enhancing

Omid Rouhani
2016 Sustainability  
To this end, we should: (i) consider and improve public transportation systems by providing more environment-friendly transport options; (ii) include tolling profits in our welfare analysis (as opposed  ...  and the impacts on land use, employment, and residents.  ...  Major stakeholders' gains and losses from a road pricing should be compared to the gains and losses from the do-nothing alternative to providing the same infrastructure or service.  ... 
doi:10.3390/su8030265 fatcat:af6xe44urzfcfhp7pm2yahqkxe


2020 Scientific Journal of Silesian University of Technology. Series Transport  
Decision problems in designing database architecture for the assessment of logistics services. Scientific Summary.  ...  This paper presents decision problems which occur in designing database architecture for the assessment of logistics services.  ...  Considering the complexity of problems arising from the implementation of specific logistics services, and the desire to increase the efficiency of the implementation of tasks by operators, it is advisable  ... 
doi:10.20858/sjsutst.2020.108.6 fatcat:jjdvriltancwtb2grfb35j4h4m
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