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객체-지향 지리정보시스템을 이용한 새만금 수자원 관리 시스템의 홍수방어 시뮬레이션 구현
이홍로 한국지리정보학회 2003 한국지리정보학회지 Vol.6 No.2
이 연구는 객체지향 지리정보시스템을 이용하여 지리-객체와 지리-필드를 연결하는 지리-객체필드 방법을 규정하고, 수계-객체필드를 이용하여 새만금호 수량과 배수갑문수위를 조작하는 새만금수자원관리시스템의 홍수 시뮬레이션을 구현하고자 한다. 그리고 새만금 수계 수자원에 발생하는 자연현상과 인공현상을 조합하여 하나의 전체 수계-객체필드로 구성되는 객체지향 클래스 계층구조를 설계함으로써 홍수통제 알고리즘 기법을 제안하고자 한다. 동시에 UML을 이용하여 전체적인 지리-객체필드와 단계적인 부분 지리-객체필드의 클래스계층구조를 가시화하고자 하며, 각 클래스의 속성과 메소드는 ZEUS/COM과 Win32 API을 이용한 Visual Basic 6.0을 사용함으로써 각각 호환성과 재사용성 기능을 확보하고자 한다. 이 논문은 새만금수자원관리시스템을 구현함으로써 효율적인 물관리를 하는데 기여할 수 있을 것이다. This paper defines the prototype of the geographic-object field that links the geographic-object and the geographic-field using an object-oriented geographic information system, and then implements the flood simulation in the saemangeurn water resources management system that manipulates the water quantity of saemangeum lake and the height of gate using the watershed-object field. This paper combines the natural phenomena with the artificial phenomena that occurs on the water resources of the saemangeum, and designs the object oriented class hierarchy that is composed of the total watershed-object field, and then presents the algorithm for flood control. To visualize the class hierarchy of the whole geographic-object field and the partial geographic-object field, I use the UML(Unified Modeling Language). Attributes and methods of each class acquire the functional reusability and compatibility using the COM of the ZEUS and the Visual Basic 6.0 of Win32 APLs. By means of implementing the flood simulation in the Saemangeum water resources management system, finally, this paper contributes on the efficient management of water resources.
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이홍로 한국안전교육학회 2000 한국안전교육학회지 Vol.3 No.1
This paper outline some of the current patterns of accidents to child ped strians, examines the accident risk associated with this group of road users, and looks at some of the reasons why such accidents are occurring. Potential solutions which could be used by policy makers to resolve such problems are discussed and the implications of these on the children, their families and other road users are considered. While the distribution of accidents throughout the day is related to the distribution of times at which children make most use of the roads, the use of exposure alone is not sufficient to explain all of the variation in accidents, in particular the afternoon peak on weekdays. The majority of child pedestrian casualties occur on urban roads and a large proportion occur very close to the home of the child involved. Over the years many different methods have been developed to improve road safety teaching techniques, and studies have been undertaken, with varying results, to try to assess the effectiveness of these techniques. In general it is true to say that there has been a general progression over the years from in-class lectures and talks of a largely theoretical nature to more practical skills based learning techniques focused around real life situations. It was felt that there were a number of factors which impede the further development of road safety education in schools. These include: - Organisational strucrure - Professional preparation of teachers - Assistance from external sources - Existence and availability of road safety teaching materials For any given location these probably have the most potential for reducing the numbers of accidents, though it has to be borne in mind that such measures are often expensive and the number of locations which can be treated in such a way are limited. A lot of work is currently focusing around ways of reducing vehicle speeds, particularly in residential areas where large numbers of children are likely to be encountered. Traffic calming schemes are now becoming quite common in a number of European countries, and parts of the residential road network are now being slowly clawed back for use by pedestrians and cyclists as well as motorised vehicles. Particular locations where it would be worth while focusing such traffic calming measures would be outside schools where large numbers of children must use the roads by necessity and where accident risk has been shown to be high. Such measures need not operate full time, but given our increasingly technology orientated road environment it should be possible to create means of calming traffic in an area surrounding a school for the periods of the day when there is greatest need. Currently variable speed limit signs are being used in a number of locations near to schools. Already there are large numbers of engineering schemes which are helping to substantially reduce the numbers of accidents to all road user groups in certain locations. Nowadays, a lot of emphasis is being placed upon speed reducing measures, especially in residential areas. What seems to be lacking from this coordinated approach is any attempts to change driver behaviour, other than through engineering means.
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