Highlights Several models were developed to estimate the safety of intersections and segments of Lisbon. Flow-only and models with covariates related to road environment were estimated. GLM modeling approaches with the Poisson-gamma distribution were used. Some highway characteristics were identified to be associated with crashes in these road elements.
Abstract This paper summarizes the result of a study regarding the creation of tools that can be used in intervention methods in the planning and management of urban road networks in Portugal. The first tool relates the creation of a geocoded database of road accidents occurred in Lisbon between 2004 and 2007, which allowed the definition of digital maps, with the possibility of a wide range of consultations and crossing of information. The second tool concerns the development of models to estimate the frequency of accidents on urban networks, according to different desegregations: road element (intersections and segments); type of accident (accidents with and without pedestrians); and inclusion of explanatory variables related to the road environment. Several methods were used to assess the goodness of fit of the developed models, allowing more robust conclusions. This work aims to contribute to the scientific knowledge of accidents phenomenon in Portugal, with detailed and accurate information on the factors affecting its occurrence. This allows to explicitly include safety aspects in planning and road management tasks.
The influence of the infrastructure characteristics in urban road accidents occurrence
Accident Analysis and Prevention ; 60 ; 289-297
2013-02-28
9 pages
Article (Journal)
Electronic Resource
English
The influence of the infrastructure characteristics in urban road accidents occurrence
Online Contents | 2013
|Model of Traffic Accidents Influence Area on Urban Road
ASCE | 2011
|Vehicle characteristics and road accidents
Engineering Index Backfile | 1954
|