Spatio-temporal modeling of traffic accidents incidence on urban road networks based on an explicit network triangulation
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https://doi.org/10.1080/02664763.2022.2104822 |
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Títol
Spatio-temporal modeling of traffic accidents incidence on urban road networks based on an explicit network triangulationData de publicació
2022-07-29Editor
Taylor and Francis Group; Taylor and FrancisISSN
0266-4763; 1360-0532Cita bibliogràfica
Somnath Chaudhuri, Pablo Juan & Jorge Mateu (2023) Spatio-temporal modeling of traffic accidents incidence on urban road networks based on an explicit network triangulation, Journal of Applied Statistics, 50:16, 3229-3250, DOI: 10.1080/02664763.2022.2104822Tipus de document
info:eu-repo/semantics/articleVersió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
Traffic deaths and injuries are one of the major global public health concerns. The present study considers accident records in an urban environment to explore and analyze spatial and temporal in the incidence of road ... [+]
Traffic deaths and injuries are one of the major global public health concerns. The present study considers accident records in an urban environment to explore and analyze spatial and temporal in the incidence of road traffic accidents. We propose a spatio-temporal model to provide predictions of the number of traffic collisions on any given road segment, to further generate a risk map of the entire road network. A Bayesian methodology using Integrated nested Laplace approximations with stochastic partial differential equations (SPDE) has been applied in the modeling process. As a novelty, we have introduced SPDE network triangulation to estimate the spatial autocorrelation restricted to the linear network. The resulting risk maps provide information to identify safe routes between source and destination points, and can be useful for accident prevention and multi-disciplinary road safety measures. [-]
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