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Resolving Spatial Conflicts In Computer-Generated Collision Diagrams For Road Accident Analysis

This research deals with the depiction of road accident scenes using symbols. When cartographic symbols are presented, there may be situations where they are either too close or overlapping. Manual intervention is thus needed to rearrange the symbols to avoid confusing the user. This condition,...

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Main Author: Mahmud, Ahmad Rodzi
Format: Thesis
Language:English
English
Published: 2002
Online Access:http://psasir.upm.edu.my/id/eprint/12074/1/FK_2002_40.pdf
http://psasir.upm.edu.my/id/eprint/12074/
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spelling my.upm.eprints.120742024-06-28T01:00:54Z http://psasir.upm.edu.my/id/eprint/12074/ Resolving Spatial Conflicts In Computer-Generated Collision Diagrams For Road Accident Analysis Mahmud, Ahmad Rodzi This research deals with the depiction of road accident scenes using symbols. When cartographic symbols are presented, there may be situations where they are either too close or overlapping. Manual intervention is thus needed to rearrange the symbols to avoid confusing the user. This condition, known as spatial conflict, is part of the problem in cartography especially in the process of automated generalization. When a collision diagram is drawn to show the road user movements (RUM) that indicate the nature of vehicle maneuver in road accidents at a particular site, the position of the event is often re-Iocated because of the type and size of symbols used. The changes made are always tentative, iterative and subjective. It is also a time consuming process, as the draughtsman need to decide the right and accurate symbols to be presented. These processes are needed, as the symbols are usually close or overlapping against each other. The diagram may not be much helpful to the traffic engineer if no intervention is being made to re-position the symbols. A clear and informative diagram is necessary to determine the predominant type of road accident, and for proposing the best remedy. Therefore, the procedures in the creation of Collision Diagram involve an iteration process which are subjective due to an array of human factors involved in making decisions. As a result, inaccuracy occurs in presenting the right position and the right symbols. Hence this work focuses on the automation process for resolving the spatial conflict. 2002-10 Thesis NonPeerReviewed text en http://psasir.upm.edu.my/id/eprint/12074/1/FK_2002_40.pdf Mahmud, Ahmad Rodzi (2002) Resolving Spatial Conflicts In Computer-Generated Collision Diagrams For Road Accident Analysis. Doctoral thesis, Universiti Putra Malaysia. English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
English
description This research deals with the depiction of road accident scenes using symbols. When cartographic symbols are presented, there may be situations where they are either too close or overlapping. Manual intervention is thus needed to rearrange the symbols to avoid confusing the user. This condition, known as spatial conflict, is part of the problem in cartography especially in the process of automated generalization. When a collision diagram is drawn to show the road user movements (RUM) that indicate the nature of vehicle maneuver in road accidents at a particular site, the position of the event is often re-Iocated because of the type and size of symbols used. The changes made are always tentative, iterative and subjective. It is also a time consuming process, as the draughtsman need to decide the right and accurate symbols to be presented. These processes are needed, as the symbols are usually close or overlapping against each other. The diagram may not be much helpful to the traffic engineer if no intervention is being made to re-position the symbols. A clear and informative diagram is necessary to determine the predominant type of road accident, and for proposing the best remedy. Therefore, the procedures in the creation of Collision Diagram involve an iteration process which are subjective due to an array of human factors involved in making decisions. As a result, inaccuracy occurs in presenting the right position and the right symbols. Hence this work focuses on the automation process for resolving the spatial conflict.
format Thesis
author Mahmud, Ahmad Rodzi
spellingShingle Mahmud, Ahmad Rodzi
Resolving Spatial Conflicts In Computer-Generated Collision Diagrams For Road Accident Analysis
author_facet Mahmud, Ahmad Rodzi
author_sort Mahmud, Ahmad Rodzi
title Resolving Spatial Conflicts In Computer-Generated Collision Diagrams For Road Accident Analysis
title_short Resolving Spatial Conflicts In Computer-Generated Collision Diagrams For Road Accident Analysis
title_full Resolving Spatial Conflicts In Computer-Generated Collision Diagrams For Road Accident Analysis
title_fullStr Resolving Spatial Conflicts In Computer-Generated Collision Diagrams For Road Accident Analysis
title_full_unstemmed Resolving Spatial Conflicts In Computer-Generated Collision Diagrams For Road Accident Analysis
title_sort resolving spatial conflicts in computer-generated collision diagrams for road accident analysis
publishDate 2002
url http://psasir.upm.edu.my/id/eprint/12074/1/FK_2002_40.pdf
http://psasir.upm.edu.my/id/eprint/12074/
_version_ 1803336783695446016
score 13.211869

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