The local spatial autocorrelation and the kernel method for identifying black zones - A comparative approach
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Date
2003
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Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Abstract
This article aims to determine the location and the length of road sections characterized by a concentration of accidents (black zones). Two methods are compared: one based on a local decomposition of a global autocorrelation index, the other on kernel estimation. After explanation, both methods are applied and compared in terms of operational results, respective advantages and shortcomings, as well as underlying conceptual elements. The operationality of both methods is illustrated by an application to one Belgian road. (C) 2003 Elsevier Science Ltd. All rights reserved.
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Keywords
black zones, kernel estimators, local spatial autocorrelation, road accidents, ASSOCIATION