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- W624193932 abstract "This paper discusses relational database design concepts, and considers how to apply them to enabling a road accident database to provide more accurate and detailed information. The first step in relational database design is to identify the relevant entities and the relationships between them, allowing for several anomalies that may arise. Several anomalies, which can arise in collecting road accident data, are described. A relational database is organised into tables, which should be organised to minimise redundant data. The three tables of an accident database are typically the attendant circumstances, vehicle, and casualty tables. The unnecessary repetition of data leads to inefficient data input and storage, and it is also liable to error. For example, inconsistencies can result from regarding road network elements as attributes of an accident, against the natural perception of accidents as attributes of a road network. This can lead to several problems, because it is a source of data redundancy and the associated network definition is incomplete. The paper discusses two more problems associated with this framework. Research by the author and his colleague on databases is continuing; they are considering the advantages of an object-oriented database for comprehensive definition of a road network." @default.
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- W624193932 date "1997-10-01" @default.
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- W624193932 title "ACCIDENT DATABASES: DESIGN CONCEPTS" @default.
- W624193932 hasPublicationYear "1997" @default.
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