Event Title
Effect of Motorways on Road Safety in Ireland
Location
Cork Institute of Technology, Cork, Ireland
Event Website
https://event.ceri2020.exordo.com/
Start Date
27-8-2020 11:45 AM
End Date
27-8-2020 1:00 PM
Description
In Ireland, high-speed motorways were built around the year 2008 to 2010. In order to investigate the effect of motorways on road safety, the research paper aims at identifying the shift of contributing factors related to vehicular crashes, before-and-after the construction of motorways/expressways. Typically, several factors are involved for accidents on motorways, but a better understanding is needed to find the relationship between injury severity and its contributing factors. The current study seeks to find the contributing factors for before-and-after the construction of motorways. In this study, the before period is considered from 2003-2007, and 2012 to 2016 have been considered as the after period. Traditionally, injury severity (fatal, severe, moderate, no injury) is considered as an ordered (ordered logit/probit model) or non-ordered (Multinomial logit model) variable. For the proportional ordered logit model, variables should meet the parallel line assumption. However, multinomial logit model ignores the inherent hierarchical nature of accident severities. To overcome these drawbacks partial proportional model are developed, which helps in estimating the models that are less restrictive (ordered model) but more parsimonious and interpretable than (multinomial logit model). The results indicate that for before period, the contributing factors for fatal accidents were evening peak hour, accident with more than two vehicles, dry surface condition, frost, ice, snow and others surface condition, singlevehicle primary collisions, rear-end collisions and private cars. While for 2012-2016, the major contributing factors for fatal accidents were morning peak hour, evening peak hour, straight road character, single-vehicle collision type, rear-end collision type, not learner driver, young and mid-age grouped drivers.
Recommended Citation
Shah, Parth B.; Mane, Ajinkya S.; and Ghosh, Bidisha, "Effect of Motorways on Road Safety in Ireland" (2020). Civil Engineering Research in Ireland 2020. 3.
https://sword.cit.ie/ceri/2020/18/3
Included in
Civil Engineering Commons, Construction Engineering and Management Commons, Environmental Engineering Commons, Geotechnical Engineering Commons, Hydraulic Engineering Commons, Structural Engineering Commons, Transportation Engineering Commons
Effect of Motorways on Road Safety in Ireland
Cork Institute of Technology, Cork, Ireland
In Ireland, high-speed motorways were built around the year 2008 to 2010. In order to investigate the effect of motorways on road safety, the research paper aims at identifying the shift of contributing factors related to vehicular crashes, before-and-after the construction of motorways/expressways. Typically, several factors are involved for accidents on motorways, but a better understanding is needed to find the relationship between injury severity and its contributing factors. The current study seeks to find the contributing factors for before-and-after the construction of motorways. In this study, the before period is considered from 2003-2007, and 2012 to 2016 have been considered as the after period. Traditionally, injury severity (fatal, severe, moderate, no injury) is considered as an ordered (ordered logit/probit model) or non-ordered (Multinomial logit model) variable. For the proportional ordered logit model, variables should meet the parallel line assumption. However, multinomial logit model ignores the inherent hierarchical nature of accident severities. To overcome these drawbacks partial proportional model are developed, which helps in estimating the models that are less restrictive (ordered model) but more parsimonious and interpretable than (multinomial logit model). The results indicate that for before period, the contributing factors for fatal accidents were evening peak hour, accident with more than two vehicles, dry surface condition, frost, ice, snow and others surface condition, singlevehicle primary collisions, rear-end collisions and private cars. While for 2012-2016, the major contributing factors for fatal accidents were morning peak hour, evening peak hour, straight road character, single-vehicle collision type, rear-end collision type, not learner driver, young and mid-age grouped drivers.
https://sword.cit.ie/ceri/2020/18/3
