scholarly journals Disaggregating Uncertainties in Operations Analysis of Intermodal Logistics Systems

2018 ◽  
Vol 5 (1) ◽  
Author(s):  
Heimir Thorisson ◽  
Daniel C. Hendrickson ◽  
Thomas L. Polmateer ◽  
James H. Lambert
Keyword(s):  
Decision Making ◽  
Large Scale ◽  
Performance Metrics ◽  
Container Terminal ◽  
Valuable Insight ◽  
Logistics Systems ◽  
Intermodal Logistics ◽  
High Traffic Volume ◽  
Marine Container Terminal ◽  
Terminal Operations

The data collected on second-to-second operations of large-scale freight and logistics systems have increased in recent years. Data analytics can provide valuable insight and improve efficiency and reduce waste of resources. Understanding sources of uncertainty, including emergent and future conditions, is critical to enterprise resilience, recognizing regimes of operations, and to decision-making for capacity expansions, etc. This paper demonstrates analyses of operations data at a marine container terminal and disaggregates layers of uncertainty and discusses implications for operations decision-making and capacity expansion. The layers arise from various sources and perspectives such as level of detail in data collection and compatibilities of data sources, missing entries in databases, natural and human-induced disruptions, and competing stakeholder views of what should be the performance metrics. Among the resulting observations is that long truck turn times are correlated with high traffic volume which is distributed across most states of operations. Furthermore, data quality and presentation of performance metrics should be considered when interpreting results from data analyses. The potential influences of emergent and future conditions of technologies, markets, commerce, environment, behaviors, regulations, organizations, environment, and others on the regimes of terminal operations are examined.

scholarly journals Modeling and Design of Container Terminal Operations

2020 ◽  
Vol 68 (3) ◽  
pp. 686-715 ◽  
Author(s):  
Debjit Roy ◽  
René De Koster ◽  
René Bekker
Keyword(s):  
Large Scale ◽  
Container Terminal ◽  
Heavy Traffic ◽  
Building Blocks ◽  
Transport Processes ◽  
Container Terminals ◽  
Automated Guided Vehicles ◽  
Design Parameters ◽  
Container Terminal Operations ◽  
Terminal Operations

The design of container terminal operations is complex because multiple factors affect operational performance. These factors include numerous choices for handling technology, terminal topology, and design parameters and stochastic interactions between the quayside, stackside, and vehicle transport processes. In this research, we propose new integrated queuing network models for rapid design evaluation of container terminals with automated lift vehicles and automated guided vehicles. These models offer the flexibility to analyze alternate design variations and develop insights. For instance, the effect of different vehicle dwell point policies and efficient terminal layouts are analyzed. We show the relation among the dwell point–dependent waiting times and also show their asymptotic equivalence at heavy traffic conditions. These models form the building blocks for design and analysis of large-scale terminal operations. We test the model efficacy using detailed simulation experiments and real-terminal validation.

scholarly journals An Investigation into Switching Vessel Sizes for Efficient Container Terminal Operations: A Case Study of Kaohsiung Port

2021 ◽  
Vol 163 (A1) ◽  
pp. 101-118
Author(s):  
En-Wei Chang ◽  
Hui-Huang Tai
Keyword(s):  
Deep Water ◽  
Large Scale ◽  
Container Terminal ◽  
Analytic Network Process ◽  
Container Terminals ◽  
Operating Efficiency ◽  
Container Terminal Operations ◽  
Port Area ◽  
Network Process ◽  
Terminal Operations

Given the continued growth in the size of container ships, major hub ports around the world have carried out large-scale upgrades of their port facilities to attract shipping companies to choose their ports, thereby enhancing the competitiveness of their ports. This study takes Kaohsiung Port as an example and uses the Decision Analytic Network Process (DANP) method to investigate container terminal operations by switching container terminal operations to appropriate new locations. The results of the study indicate that, despite the external issues (such as a lack of deep-water terminals and hinterland in the port area, the upsizing of ships, and new strategic shipping alliances), Kaohsiung Port authority must accelerate the upgrade of its container terminals, integrate its port resources to build deep-water berth facilities with highefficient container operating system, and improve the operating efficiency of its existing terminals, as a means to maintain the status of Kaohsiung Port as a regional centre.

scholarly journals Method of Assessing the Impact of Polish Container Terminals in Reducing the External Costs of Transport

1970 ◽  
Vol 25 (1) ◽  
pp. 73-80 ◽  
Author(s):  
Izabela Kotowska
Keyword(s):  
Container Terminal ◽  
Container Terminals ◽  
External Costs ◽  
Costs And Benefits ◽  
Container Terminal Operations ◽  
The Social ◽  
Social Costs And Benefits ◽  
Marine Container Terminal ◽  
Terminal Operations ◽  
The Impact

The paper attempts to identify the social costs and benefits of marine container terminal operations regarding feeder vessels services. It presents a method of valuation which takes into account the external costs of additional factors: the nature and direction of the shipping lines operated by the terminals and the size of port hinterland. Based on the proposed method, the impact of container terminals to reduce the external costs of transport has been assessed.

A Novel Static Path Planning Method for Mobile Anchor-Assisted Localization in Wireless Sensor Networks

2020 ◽  
Vol 10 ◽  
Author(s):  
Abdelhady M. Naguib ◽  
Shahzad Ali
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Path Planning ◽  
Sensor Node ◽  
Large Scale ◽  
Performance Metrics ◽  
Wireless Sensor ◽  
Anchor Node ◽  
Mobile Anchor ◽  
Planning Methods

Background: Many applications of Wireless Sensor Networks (WSNs) require awareness of sensor node’s location but not every sensor node can be equipped with a GPS receiver for localization, due to cost and energy constraints especially for large-scale networks. For localization, many algorithms have been proposed to enable a sensor node to be able to determine its location by utilizing a small number of special nodes called anchors that are equipped with GPS receivers. In recent years a promising method that significantly reduces the cost is to replace the set of statically deployed GPS anchors with one mobile anchor node equipped with a GPS unit that moves to cover the entire network. Objectives: This paper proposes a novel static path planning mechanism that enables a single anchor node to follow a predefined static path while periodically broadcasting its current location coordinates to the nearby sensors. This new path type is called SQUARE_SPIRAL and it is specifically designed to reduce the collinearity during localization. Results: Simulation results show that the performance of SQUARE_SPIRAL mechanism is better than other static path planning methods with respect to multiple performance metrics. Conclusion: This work includes an extensive comparative study of the existing static path planning methods then presents a comparison of the proposed mechanism with existing solutions by doing extensive simulations in NS-2.

Applications of blockchain in healthcare (Preprint)

2020 ◽  
Author(s):  
Pranav C
Keyword(s):  
Decision Making ◽  
Large Scale ◽  
Review Paper ◽  
New Technology ◽  
Personal Identification ◽  
Healthcare Industry ◽  
Healthcare Organizations ◽  
Paper Briefly ◽  
Blockchain Technology ◽  
Audit Trails

UNSTRUCTURED The word blockchain elicits thoughts of cryptocurrency much of the time, which does disservice to this disruptive new technology. Agreed, bitcoin launched in 2011 was the first large scale implementation of blockchain technology. Also, Bitcoin’s success has triggered the establishment of nearly 1000 new cryptocurrencies. This again lead to the delusion that the only application of blockchain technology is for the creation of cryptocurrency. However, the blockchain technology is capable of a lot more than just cryptocurrency creation and may support such things as transactions that require personal identification, peer review, elections and other types of democratic decision-making and audit trails. Blockchain exists with real world implementations beyond cryptocurrencies and these solutions deliver powerful benefits to healthcare organizations, bankers, retailers and consumers among others. One of the areas where blockchain technology can be used effectively is healthcare industry. Proper application of this technology in healthcare will not only save billions of money but also will contribute to the growth in research. This review paper briefly defines blockchain and deals in detail the applications of blockchain in various areas particularly in healthcare industry.

Ban Ki-moon, 2007–2016

2018 ◽  
Author(s):  
Richard Gowan
Keyword(s):  
United States ◽  
Decision Making ◽  
Security Council ◽  
Large Scale ◽  
Central African Republic ◽  
The United States ◽  
Cautious Approach ◽  
Peacekeeping Operations ◽  
Council Decision ◽  
The Face

During Ban Ki-moon’s tenure, the Security Council was shaken by P5 divisions over Kosovo, Georgia, Libya, Syria, and Ukraine. Yet it also continued to mandate and sustain large-scale peacekeeping operations in Africa, placing major burdens on the UN Secretariat. The chapter will argue that Ban initially took a cautious approach to controversies with the Council, and earned a reputation for excessive passivity in the face of crisis and deference to the United States. The second half of the chapter suggests that Ban shifted to a more activist pressure as his tenure went on, pressing the Council to act in cases including Côte d’Ivoire, Libya, and Syria. The chapter will argue that Ban had only a marginal impact on Council decision-making, even though he made a creditable effort to speak truth to power over cases such as the Central African Republic (CAR), challenging Council members to live up to their responsibilities.

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