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"Transportation terminals"
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Sustainability and the Design of Transport Interchanges
The interchange is a new form of transport building which integrates into a single whole various modes of public transport, putting the passenger first (rather than the infrastructure). This book presents design principles for transport interchanges and offers analysis of best practice in the UK and abroad. The author demonstrates how this complex new building type integrates with the city, on the one hand, and with different types of transport on the other. In this integration design in both plan and section are important, as is urban and landscape design. The idea of ‘interchange’ is increasingly relevant as town planners, engineers and architects address the question of sustainable development with its emphasis on energy efficiency, social cohesion, access for the elderly, and urban regeneration.
eBook
Grand Central Terminal : 100 years of a New York landmark
\"In February 1913, Grand Central Terminal opened in New York City. Since then, Grand Central has welcomed millions to the city; every day, tourists and commuters alike walk through Vanderbilt Hall, the former Main Waiting Room, under the striking ceiling painted with glowing gold-leaf constellations. This new book celebrates the centennial of Grand Central by revealing its history and its secrets--like the romantic Whispering Gallery--and by showcasing 200 photographs of the terminal inside and out, from the Oyster Bar to the grand staircases to the train platforms themselves. The stunning images, taken by Frank English, official photographer of Metro North Railroad for over 25 years, make it clear why Grand Central is one of the city's most popular destinations\"-- Provided by publisher.
Book
Storage Yard Management in Maritime Container Terminals
This paper studies the daily storage yard manage problem arising in maritime container terminals, which integrates the space allocation and yard crane deployment decisions together with the consideration of container traffic congestion in the storage yard. The integrated problem is formulated as an integer linear programming model with the objective of minimizing the yard crane operating cost and the yard crane interblock movement cost. A divide-and-conquer solution approach is designed to solve the problem in an efficient manner in which harmony search and constraint satisfaction techniques are employed. Numerical experiments are conducted to validate the performance of the solution approach and the improvement from the integrated optimization method.
Journal Article
Digital Twins in the Context of Seaports and Terminal Facilities
Increasing freight volumes and challenging environments in seaports and container terminals worldwide require streamlined and reliable operations. Digital twins are seen as important drivers of the digitalization in seaports by providing a basis for higher transparency, control and data-driven decision making. In this context, however, the concept is rarely studied, and implementation issues are not comprehensively discussed. The paper presents an exploratory study of digital twins in seaports based on a literature review and case studies. The analysis reveals a standardization deficit for digital twin implementations, an inflationary and improper use of the term digital twin, and fields of research that need to be explored further. The application of optimization methods and the integration of simulation-based optimization in the field of seaports and container terminals is examined, due to its relevance for digital twins. Important lessons learned can be taken from the most advanced implementations, integrating simulations and emulations with optimization methods. An in-depth examination of multiple case studies and discussions with global port leaders yields valuable perspectives on the varied levels of digital twin implementations being applied today, including insights into the most advanced implementations currently being used in ports and container terminals. As a result of the analyses conducted, various research directions and a research agenda are presented.
Journal Article
Column Generation for the Integrated Berth Allocation, Quay Crane Assignment, and Yard Assignment Problem
This study investigates an integrated optimization problem on the three main types of resources used in container terminals: berths, quay cranes, and yard storage space. It presents a mixed integer linear programming model, which takes account of the decisions of berth allocation, quay crane assignment, and yard storage space unit assignment for incoming vessels. In addition, since the majority of the liner shipping services operate according to a weekly arrival pattern, the periodicity of the plan is also considered in the model and in the proposed algorithm. To solve the model on large-scale instances, a column generation (CG) procedure is developed to provide a lower bound for the integrated problem, in which an exact pseudopolynomial algorithm is designed for the pricing problems. Using this procedure, we propose a CG-based heuristic with different solution strategies and apply dual stabilization techniques to accelerate the algorithm. Based on some realistic instances, we conduct extensive numerical experiments to validate the effectiveness of the proposed model and the efficiency of the algorithm. The results show that the CG-based heuristic can yield a good solution with an approximate 1% optimality gap within a much shorter computation time than that of CPLEX.
The online appendix is available at
https://doi.org/10.1287/trsc.2018.0822
.
Journal Article
Twenty-Five Years of Hub Location Research
Last year was the 25th anniversary of two seminal transportation hub location publications, which appeared in 1986 in
Transportation Science
and
Geographical Analysis
. Though there are related hub location and network design articles that predate these works, the 1986 publications provided a key impetus for the growth of hub location as a distinct research area. This paper is not intended as a comprehensive review of hub location literature; rather, our goal is to reflect on the origins of hub location research, especially in transportation, and provide some commentary on the present status of the field. We provide insight into early motivations for analyzing hub location problems and describe linkages to problems in location analysis and network design. We also highlight some of the most recent research, discuss some shortcomings of hub location research and suggest promising directions for future effort.
Journal Article
An Integrated Model for Berth Template and Yard Template Planning in Transshipment Hubs
This paper studies two tactical level decision problems arising in transshipment hubs: berth template planning that is concerned with allocating berths and quay cranes to arriving vessels, and yard template planning that is concerned with assigning yard storage locations to vessels. These two tactical level decisions interact with each other. A mixed-integer programming model is proposed to integrate the berth template and the yard template planning with the aim to minimize the service cost that is incurred by the deviation from vessels' expected turnaround time intervals, and the operation cost that is related to the route length of transshipment container flows in yard. Moreover, a heuristic algorithm is developed for solving the problem in large-scale realistic environments. Numerical experiments are conducted to prove the necessity of the proposed model and also validate the efficiency of the proposed heuristic algorithm. For a set of real-world like instances, the heuristic algorithm can obtain good berth and yard templates within a reasonable time.
Journal Article