Journal cover Journal topic
Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
Nat. Hazards Earth Syst. Sci., 15, 2059-2068, 2015
https://doi.org/10.5194/nhess-15-2059-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
15 Sep 2015
Identification of traffic accident risk-prone areas under low-light conditions
K. Ivan1, I. Haidu2, J. Benedek3, and S. M. Ciobanu1 1Babeş-Bolyai University of Cluj-Napoca, Faculty of Geography, Clinicilor Street, 5–7, 400006 Cluj-Napoca, Romania
2Université de Lorraine, Laboratoire LOTERR – EA 7304, Île du Saulcy, 57045 Metz, France
3University of Miskolc, Institute of World and Regional Economics, 3515 Miskolc, Hungary
Abstract. Besides other non-behavioural factors, low-light conditions significantly influence the frequency of traffic accidents in an urban environment. This paper intends to identify the impact of low-light conditions on traffic accidents in the city of Cluj-Napoca, Romania. The dependence degree between light and the number of traffic accidents was analysed using the Pearson correlation, and the relation between the spatial distribution of traffic accidents and the light conditions was determined by the frequency ratio model. The vulnerable areas within the city were identified based on the calculation of the injury rate for the 0.5 km2 areas uniformly distributed within the study area. The results show a strong linear correlation between the low-light conditions and the number of traffic accidents in terms of three seasonal variations and a high probability of traffic accident occurrence under the above-mentioned conditions at the city entrances/exits, which represent vulnerable areas within the study area. Knowing the linear dependence and the spatial relation between the low light and the number of traffic accidents, as well as the consequences induced by their occurrence, enabled us to identify the areas of high traffic accident risk in Cluj-Napoca.

Citation: Ivan, K., Haidu, I., Benedek, J., and Ciobanu, S. M.: Identification of traffic accident risk-prone areas under low-light conditions, Nat. Hazards Earth Syst. Sci., 15, 2059-2068, https://doi.org/10.5194/nhess-15-2059-2015, 2015.
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Short summary
The current paper intends to identify the impact of low-light conditions on traffic accidents in an urban area. Knowing the linear dependence and the spatial relation between the low light and the number of traffic accidents, as well as the consequences of their occurrence, enabled us to identify the areas of high road traffic accident risk.
The current paper intends to identify the impact of low-light conditions on traffic accidents in...
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