Road Accident Case Modeling in Ghana: A Perspective of Negative Binomial–Based Generalized Linear Models

The gravity of casualties due to road traffic accidents poses a threat to national development, and this requires pragmatic and actionable road traffic policy and regulation restructuring. This restructuring in policy and regulations can be best achieved through appropriate statistical modeling fram...

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Main Authors: Stephen Adomako, Irene Kafui Vorsah Amponsah, David Kwamena Mensah, James Damsere-Derry
Format: Article
Language:English
Published: Wiley 2025-01-01
Series:Journal of Probability and Statistics
Online Access:http://dx.doi.org/10.1155/jpas/3900755
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author Stephen Adomako
Irene Kafui Vorsah Amponsah
David Kwamena Mensah
James Damsere-Derry
author_facet Stephen Adomako
Irene Kafui Vorsah Amponsah
David Kwamena Mensah
James Damsere-Derry
author_sort Stephen Adomako
collection DOAJ
description The gravity of casualties due to road traffic accidents poses a threat to national development, and this requires pragmatic and actionable road traffic policy and regulation restructuring. This restructuring in policy and regulations can be best achieved through appropriate statistical modeling framework in the space of large road traffic accident data in which hidden data issues are inevitable. In this regard, this paper investigates the perspective of negative binomial generalized linear models (NBGLMs) with and without LASSO regularization in modeling road traffic accident casualties in Ghana, in which predictor space data issues are inevitable. Implementation using real road traffic accident casualty data compiled by Building and Road Research Institute in Ghana from 2017 to 2021 illustrates the potential of the LASSO negative binomial generalized linear model (LNBGLM) over its unregularized counterpart NBGLM in terms of both fitting and predictive performances. Model assessment was quantified in statistics such as deviance, AIC, BIC, and graphical predictive performance analysis. In particular, results show that LNBGLM is more suitable than NBGLM in estimating road accident casualties in Ghana with type of weather, vehicle involved in an accident, location, and age of victims as major determinants. The practical implications of the results become apparently clear and realistic, examining the state of the identified predictors on our roads currently.
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issn 1687-9538
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spelling doaj-art-3d0edeed009247778352d5424b6afa7d2025-08-20T03:40:21ZengWileyJournal of Probability and Statistics1687-95382025-01-01202510.1155/jpas/3900755Road Accident Case Modeling in Ghana: A Perspective of Negative Binomial–Based Generalized Linear ModelsStephen Adomako0Irene Kafui Vorsah Amponsah1David Kwamena Mensah2James Damsere-Derry3Department of StatisticsDepartment of StatisticsDepartment of StatisticsCSIR-Building and Road Research InstituteThe gravity of casualties due to road traffic accidents poses a threat to national development, and this requires pragmatic and actionable road traffic policy and regulation restructuring. This restructuring in policy and regulations can be best achieved through appropriate statistical modeling framework in the space of large road traffic accident data in which hidden data issues are inevitable. In this regard, this paper investigates the perspective of negative binomial generalized linear models (NBGLMs) with and without LASSO regularization in modeling road traffic accident casualties in Ghana, in which predictor space data issues are inevitable. Implementation using real road traffic accident casualty data compiled by Building and Road Research Institute in Ghana from 2017 to 2021 illustrates the potential of the LASSO negative binomial generalized linear model (LNBGLM) over its unregularized counterpart NBGLM in terms of both fitting and predictive performances. Model assessment was quantified in statistics such as deviance, AIC, BIC, and graphical predictive performance analysis. In particular, results show that LNBGLM is more suitable than NBGLM in estimating road accident casualties in Ghana with type of weather, vehicle involved in an accident, location, and age of victims as major determinants. The practical implications of the results become apparently clear and realistic, examining the state of the identified predictors on our roads currently.http://dx.doi.org/10.1155/jpas/3900755
spellingShingle Stephen Adomako
Irene Kafui Vorsah Amponsah
David Kwamena Mensah
James Damsere-Derry
Road Accident Case Modeling in Ghana: A Perspective of Negative Binomial–Based Generalized Linear Models
Journal of Probability and Statistics
title Road Accident Case Modeling in Ghana: A Perspective of Negative Binomial–Based Generalized Linear Models
title_full Road Accident Case Modeling in Ghana: A Perspective of Negative Binomial–Based Generalized Linear Models
title_fullStr Road Accident Case Modeling in Ghana: A Perspective of Negative Binomial–Based Generalized Linear Models
title_full_unstemmed Road Accident Case Modeling in Ghana: A Perspective of Negative Binomial–Based Generalized Linear Models
title_short Road Accident Case Modeling in Ghana: A Perspective of Negative Binomial–Based Generalized Linear Models
title_sort road accident case modeling in ghana a perspective of negative binomial based generalized linear models
url http://dx.doi.org/10.1155/jpas/3900755
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AT davidkwamenamensah roadaccidentcasemodelinginghanaaperspectiveofnegativebinomialbasedgeneralizedlinearmodels
AT jamesdamserederry roadaccidentcasemodelinginghanaaperspectiveofnegativebinomialbasedgeneralizedlinearmodels