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.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    The influence of the infrastructure characteristics in urban road accidents occurrence


    Contributors:

    Published in:

    Publication date :

    2013-02-28


    Size :

    9 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





    Relationship between road infrastructure characteristics and HGV accidents

    Gothié, Michel / Cerezo, Véronique / Conche, Florence | Wiley | 2009


    Minor Accidents Prediction of Urban Road Segment Based on Road Characteristics

    Long, Xueqin / Guan, Hongzhi / Xia, Weihong | ASCE | 2011


    Model of Traffic Accidents Influence Area on Urban Road

    Pei, Yulong / Fu, Chuanyun / Hu, Liwei | ASCE | 2011


    Vehicle characteristics and road accidents

    Grime, G. | Engineering Index Backfile | 1954