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Author(s): Marco Amorim
Sara Ferreira
António Couto
Title: Linking Police and Hospital Road Accident Records: How Consistent Can It Be?
Issue Date: 2014
Abstract: This paper presents the description of various steps to be applied in thelinkage of road traffic accident records through a case study from thecity of Porto, Portugal. The complexity of this process stems primarilyfrom several issues found in the data sets: mistakes and missing valueswere frequently detected, and only a few common data fields could bematched by the linkage process. This study used the application of amixed deterministic and weight-based probabilistic method to link policeand hospital records. The tolerance calibration and weights computationwere critical for the final linkage rate as well as for the correct matchingof the results. The results obtained lay within the range of rates foundby other authors. Furthermore, to improve the record linkage results,a validation process based on the emergency ambulance data was performed. Despite missing values, 98% of the matched records wereverified as true matches. Finally, a preliminary investigation of biasafter data linkage is described; it shows that the variables selected forcomparison indicate similar statistical values. The main outcome of thisstudy is a road accident linkage process that can be adapted, developed,and applied in different contexts and that aims to promote developmentof police, hospital, and emergency ambulance data in Portugal and othercountries. Additional development is planned for each step presentedin this paper.
Subject: Engenharia civil, Engenharia civil
Civil engineering, Civil engineering
Scientific areas: Ciências da engenharia e tecnologias::Engenharia civil
Engineering and technology::Civil engineering
Source: TRB 93th Annual Meeting Compendium of Papers
Document Type: Artigo em Livro de Atas de Conferência Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Livro de Atas de Conferência Internacional

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