The Investigation Study on the Present State of River Transportation of Asia and Development Strategy

本课题主要进行了以下三方面的研究.对亚洲河流的河流运输现状进行了全面的实地调查，特别是从泰国到中国以及越南到柬埔寨的湄公河，以及马来西亚的Mahakam河2。内河运输系统，特别是顶推式多驳船操纵安全性的理论和试验研究.通过对多式联运系统网络分析的研究，对湄公河内河运输的经济性进行了分析，取得了以下成果：1.为了提高和促进内河运输安全，必须建立公共部门的职能，如河流状况管理，特别是水深管理、港口发展、交通管理和航运支持、操作人员培训等，特别是提供沿着水深信息。在本项目中，提出了KGPS和声纳相结合的水深测量新方法，并在Mahakam河进行了验证.对顶推式驳船和拖式驳船的操纵性能进行了比较，并推荐了顶推式驳船系统。研究了不同类型多驳船船队的操纵能力.建立了多式联运成本模型，并通过网络分析对内河运输的经济前景进行了评价.考虑到河流中预期的最大船舶尺寸，估算新建桥梁的最小高度是非常重要的。

In the present program, the following 3 kinds of researches have carried out.1. Comprehensive field investigations on the current situation of river transportation in Asian rivers, especially in the Mekong River of the part from Thailand to China and also Vietnam to Cambodia, and at Mahakam river in Indonesia2. Theoretical and experimental studies on maneuvering safety aspects of transportation systems used in rivers, especially of multi-barges of pushing type.3. Network analysis of multi-modal transportation systems has been analyzed for estimating economical aspects of river transportation especially in the Mekong River.Through these researches, the following results have been achieved ;1. To improve safety of river transportation and to promote it, it is important to establish functions of the public sectors, such as management of river condition, especially of water depth, development of ports, traffic management and navigation supports, training of operators and so on. In particular, it is important to give information of water depth along a river. In the present program the new procedure to measure water depth by combining of KGPS and sonar has been proposed and validated in the Mahakam River.2. Comparisons of maneuvering capabilities between barges of pushing and towing types have been done and the barge system of pushing type has been recommended. Maneuvering capabilities of multi-barges convoys of various types were investigated.3. Cost models of multi-modal transportation systems were developed and economical prospect of river transportation has been evaluated through the network analysis.4. Taking account of the maximum size of ships to be expected in a river, it is very important to estimate the minimum height of bridges to be constructed newly.