Possible remedies for intact stability hazards involving contemporary small inland passenger ferries in Bangladesh

On the basis of previous studies, a series of hazards involving the typical small inland passenger ferries operating in inland Bangladeshi waters have been identified. In particular, stormy weather conditions, overloading, and the risk of crowding to one side have been determined as the typical events that are likely to lead to capsizing in the intact condition. In this article, possible hazard mitigation measures are discussed, both from the regulatory and from the design point of view, for a small inland ferry that is very similar to one that actually capsized in the past. The addressed design options involve ballasting and hull modification by means of additional buoyancy above the waterline. From a regulatory point of view, it is proposed that the present weather criterion in force in Bangladesh be modified by increasing the wind speed to be accounted for and by considering the concurrent effects of wind, rolling, and the crowding of people to one side.     

关于广西内河船员计算机考试的探讨

文章基于广西辖区船员计算机考试现状,从考场建设情况、考试管理规定以及船员素质特点等方面分析了广西内河船员计算机考试存在的问题,并提出了相应的对策和建议.     

内河机动船大气污染的防治措施研究

目前我国内河机动船发展较快,随之而来的污染问题日益突出。文章对内河机动船的大气污染防治现状进行了分析,并从完善监管体系、加强污染防治能力建设、强化船员环保意识、推进新能源使用等方面提出了解决问题的对策。     

The role of inland terminal development in the hinterland access strategies of Spanish ports

The aim of this paper is to understand how inland terminals are developed in relation both to ports and to other inland terminals within a national system.The paper builds on previous work developing inland terminal taxonomies and applies them to the Spanish case, with supplementary focus on the relations between the “dry port” and “extended gate” concepts. Theoretical contributions include both the importance of development direction (land-driven vs sea-driven) and the identification of an emerging spatial disparity in port development strategies between coastal and inland nodes.In Spain, ports retain an interest in inland terminals through minority shareholdings but they are not the primary investors. The principal ports using Spanish inland terminals are Barcelona and Valencia, both of which are also developing logistics zones within their ports. Furthermore, while the ports are developing closer IT links with these inland locations, this does not necessarily indicate greater than normal levels of cooperation. A study of the Spanish system thus raises questions about whether the increasing academic focus on “dry ports” actually signals any change in strategies of port development or intermodal terminal operation. Therefore the final aim of this paper is to question the use of the “dry port” terminology.     

Modal-split effects of climate change: The effect of low water levels on the competitive position of inland waterway transport in the river Rhine area

Future climate change is expected to affect inland waterway transport in most main natural waterways in Europe. For the river Rhine it is expected that, in summer, more and longer periods with low water levels will occur. In periods of low water levels inland waterway vessels have to reduce their load factors and, as a result, transport prices per tonne will increase. One possible consequence of these higher transport prices is a deterioration of the competitive position of inland waterway transport compared with rail and road transport, and thus a change in modal split. We study this issue using a GIS-based software model called NODUS which provides a tool for the detailed analysis of freight transportation over extensive multimodal networks. We assess the effect of low water levels on the costs of transport operations for inland waterway transport in North West Europe under several climate scenarios. It turns out, that the effect on the modal split is limited. Under the most extreme climate scenario, inland waterway transport would lose about 5.4% of the quantity that is currently being transported annually in the part of the European inland waterway transport market considered. The very dry year of 2003 can be seen as an analogue for this scenario.     

DSC在内河航运中的应用

本文提出将ＤＳＣ（ＤｉｇｉｔａｌＳｅｌｅｃｔｉｖｅＣａｌｉｎｇ,数字选择性呼叫）应用于内河航运的设想,从而建立起内河的船舶船位自动监视系统,实现可靠的遇险报警,并提高通信和救助的效率和能力     

线性规划模型在内河巡航搜救站点设置中的应用研究

内河某一辖区内的重点水域,可以抽象成一条直线上存在几个点的简单数学模型。在此基础上,按照管理者既定的巡航任务表,将一种线性规划理论应用于内河巡航搜救站点设置的决策分析。建立数学模型,通过比较从预设站点出发完成相同巡航任务所需时间多少来确定最佳巡航搜救站点设置位置,并结合实例论证了这一算法的实用性和可行性。     

内河船舶航行香港航线防止空气污染的检验与管理

内河船舶航行香港航线,应满足香港《商船（防止空气污染）规例》的要求,并持有防止空气污染证书。本文结合香港规例、内河船检法规及中国海事局文件要求,按照新船与现有船舶进行区分,介绍了航行香港的内河船舶防止空气污染方面的检验要求,并提出相应的管理建议。关键词：内河船舶防止空气污染检验要求     

基于GIS电子江（海）图与信息系统的内河模拟引航研究

应用地理信息系统（GIS）方法,在讨论电子海图与电子江图异同的基础上,对电子江图数据库结构进行了设计,并阐述了电子江图与信息系统实现的功能。文章分析了内河船舶运动数学模型和解算方法,提出了内可模拟引航要求实现的主要功能,并用计算机软件加以实现。     

A rational analysis of intact stability hazards involving small inland passenger ferries in Bangladesh

The safety of inland passenger vessels operating in Bangladesh has been investigated. By thorough analysis of past accident data, the main causes of intact stability failures have been determined: adverse weather conditions and overloading, likely resulting in crowding to one side. Historical series of wind data were gathered and their analysis suggests that an increase in the wind speed presently used in the Weather Criterion in force in Bangladesh could be advisable. A model of a small passenger ship typically operated in Bangladesh has been analyzed in order to identify the most relevant hazards under intact ship conditions. A strongly jeopardizing effect of overloading under intact ship conditions has been detected when analyzing the hazard from the crowding of people to one side.