An assignment model for dynamic load planning of intermodal trains

Corry, Paul; Kozan, Erhan

doi:10.1016/j.cor.2004.05.013

Cited by 79 publications

(40 citation statements)

References 10 publications

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“…Our study is a significant extension of the developments made in several previous studies Kozan (1997), Kozan (1999), Corry and Kozan (2004) and Corry and Kozan (2006). The first two of these studies consider a wider view of container terminal operations whereas the 6 second two are precursors to the train planning model developed in this study.…”

Section: Related Researchmentioning

confidence: 56%

Optimised loading patterns for intermodal trains

Corry

Kozan

2007

OR Spectrum

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Abstract. This paper considers one important aspect of operations planning referred to hereafter as train planning. Train planning is the process of spatially assigning containers to specific wagons (also known as railcars) on an intermodal train. The spatial arrangement of containers on a train can have a significant influence over the amount of time and energy consumed in the handling of containers. Efficient train planning can also maximise utilisation of wagon carrying capacity. This study proposes a mixed-integer programming model to determine the arrangement of containers on a train to minimise a weighted sum of number of wagons required and equipment working time. Due to the large number of variables, the proposed model cannot be solved in a timely manner for practical problems. This is addressed by applying heuristic algorithms local search and simulated annealing.Discrete-event simulation of an intermodal terminal is used to evaluate the proposed methods and to illuminate various properties of the model.

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Section: Related Researchmentioning

confidence: 56%

Optimised loading patterns for intermodal trains

Corry

Kozan

2007

OR Spectrum

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“…In an informative review of the container shipping sector, Notteboom [27] provides examples of integration between German and Dutch container ports and their connecting rail services to inland terminals, while Woxenius and Bärthel [28] examine the wider issues surrounding the various parties involved in the European intermodal sector. As with the maritime parts of the chain, there have also been attempts to model the operations of container trains [29][30], largely examining hypothetical scenarios. Rowlinson [31] considers the combined effects of rail deregulation and container port growth in Britain, and identifies both considerable potential for, and significant obstacles to, development of this rail market.…”

Section: Key Issuesmentioning

confidence: 99%

The role for rail in port-based container freight flows in Britain

Woodburn

2007

Maritime Policy & Management

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As supply chains become increasingly global and companies seek greater efficiencies, the importance of good, reliable land-based transport linkages to/from ports increases. This poses particular problems for the UK, with its high dependency on imported goods and congested ports and inland routes. It is conservatively estimated that container volumes through British ports will double over the next 20 years, adding to the existing problems. This paper investigates the potential for rail to become better integrated into port-based container flows, so as to increase its share of this market and contribute to a more sustainable mode split. The paper identifies the trends in container traffic through UK ports, establishes the role of rail within this market, and assesses the opportunities and threats facing rail in the future. The analysis combines published statistics and other information relating to container traffic and original research on the nature of the rail freight market, examining recent trends and future prospects. The paper concludes that this is an important market for rail, with considerable growth potential but to realise this it is important that a number of constraints are overcome, otherwise the long-term prospects for this rail market will be compromised.

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“…i, j ∈ I; p, q ∈ P g with s(p) < s(q), (13) where s(p), l i and M denote the slot of parking position p, the length (in slots) of train i and a big integer, respectively. Note that, for instance, M = |P g | can be chosen.…”

Section: Multiple Trains Per Trackmentioning

confidence: 99%

“…. , S − l j + 1} in relation to all other currently 12 xed trains; return track and slot assignment for all trains; 13 …”

Section: Detailed Problem Descriptionmentioning

confidence: 99%

How to park freight trains on rail–rail transshipment yards: the train location problem

2011

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In modern rail-rail transshipment yards huge gantry cranes spanning all railway tracks allow for an ecient transshipment of containers between dierent freight trains. This way, multiple trains loaded with cargo for varying destinations can be consolidated to a reduced number of homogeneous trains, which is an essential requirement of hub-and-spoke railway systems. An important problem during the daily operations of such a transshipment yard is the train location problem, which assigns each train of a given pulse to a railway track (vertical position) and decides on each train's parking position on the track (horizontal position), so that the distances of container movements are minimized and the overall workload is equally shared among cranes.For this problem a mathematical model is presented, dierent heuristic solution procedures are described and tested in a comprehensive computational study. The results show that our procedures allow for a remarkable reduction of train processing time compared to typical real-world train location policies.

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An assignment model for dynamic load planning of intermodal trains

Cited by 79 publications

References 10 publications

Optimised loading patterns for intermodal trains

Optimised loading patterns for intermodal trains

The role for rail in port-based container freight flows in Britain

How to park freight trains on rail–rail transshipment yards: the train location problem

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