scholarly journals A “Net-Centric” Conduct of Navigation and Shipping Management

2020 ◽  
Vol 2 (2) ◽  
pp. Manuscript
Author(s):  
Dimitrios Dalaklis ◽  
Georgios Katsoulis ◽  
Momoko Kitada ◽  
Jens-Uwe Schröder-Hinrichs ◽  
Aykut I. Ölcer

Modern sea-going vessels are equipped with numerous technologically advanced systems and highly automated. The continuous improvement and integration-interconnection of electronics systems (“network-centric” approach), have created a new operating environment for the shipping industry. It is not a coincidence that recent discussions on digitalization and autonomous ships provide a disruptive picture of how this industry may be transformed in the near future. Today, all systems supporting the conduct of navigation and the various information technology (IT) applications related to shipping management activities are heavily reliant upon real-time information in order to safely and effectively fulfil their allocated tasks; the issues of connectivity and interconnection are clearly standing out.This analysis highlights a certain number of technological developments that follow the network-centric architecture and have been recently introduced as equipment appropriate for ships. It also examines how interactive processes and applications, both on the shore side and on-board vessels, can facilitate a safer working environment for seafarers and allow personnel based ashore to have a better understanding of what is happening at sea, as part of explaining the so-called “net-centric” framework of operations. Another important aim is to evaluate these promising technological trends according to their capacity of adoption in order to promote efficient and safe operations within the extended maritime transport domain.

1995 ◽  
Vol 48 (1) ◽  
pp. 53-69 ◽  
Author(s):  
Thomas Degré

The risks involved in maritime transport are very much greater now than was formerly the case. This has been accompanied by a considerable increase in the damage resulting from certain accidents. Maritime traffic management has been made necessary not only for reasons of safety but also productivity and comprises two main types of measure: first, laying down and enforcing suitable regulations and secondly, providing navigators with real time information which is not available to them on board from the Vessel Traffic Services (VTS).Section 2 of this paper is a general description of the techniques used in maritime traffic management and an account of possibilities for the future. Section 3 describes a feasibility study for a traffic monitoring aid system based on VTS and using a knowledge based system.This paper is based on one which was first published in the journal, Recherche Transports Sécurité, issue no. 9, 1993.


2015 ◽  
Vol 2015 ◽  
pp. 1-10
Author(s):  
Zhengfeng Huang

Traffic demand in emergency evacuation is usually too large to be effectively managed with reactive traffic information control methods. These methods adapt to the road traffic passively by publishing real-time information without consideration of the routing behavior feedback produced by evacuees. Other remedy measures have to be prepared in case of nonrecurring congestion under these methods. To use the network capacity fully to mitigate near-future evacuation traffic congestion, we propose proactive traffic information control (PTIC) model. Based on the mechanism between information and routing behavior feedback, this model can change the route choice of evacuees in advance by dissipating strategic traffic information. Generally, the near-future traffic condition is difficult to accurately predict because it is uncertain in evacuation. Assume that the value of traffic information obeys certain distribution within a range, and then real-time traffic information may reflect the most-likely near-future traffic condition. Unlike the real-time information, the proactive traffic information is a selection within the range to achieve a desired level of the road network performance index (total system travel time). In the aspect of the solution algorithm, differential equilibrium decomposed optimization (D-EDO) is proposed to compare with other heuristic methods. A field study on a road network around a large stadium is used to validate the PTIC.


2014 ◽  
Vol 10 (2) ◽  
pp. 37-55 ◽  
Author(s):  
Tagelsir Mohamed Gasmelseid

The shifts experienced in the environment of disaster operations and emergency response are reshaping the context of information acquisition and utilization in hospitals. In addition to the formulation of emergency response plans, healthcare organizations (especially hospitals) are being challenged by the growing need to maintain and share real time information necessary for the improvement of emergency response processes. Such information-related attention originates from many emergency-specific concerns including the limited focus of current emergency response information systems, decision limitations that challenge the formulation of decision support applications and the characterization of user requirements, the heterogeneity of emergency response information and the difficulty of integrating spatially distributed information sources. The increased attention in emergency response information also emerges from the recent technological developments (in terms of hardware, software functionalities, databases and telecommunication, among others) which significantly affected the processing, storage and retrieval of real time information. This paper focuses on the examination of the context of emergency response in Al Ahsaa area of Saudi Arabia and the applicability of multi-agent information systems through the proposal of an integrated architecture. Then it sheds light on the implementation concerns to ensure the contribution of the proposed architecture towards the engagement of stakeholders, the improvement of the availability and accessibility of emergency management information and the harmonization of emergency response operations. .


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