Safety ranking definition for infrastructures with high PTW flow

Antonella Ragnoli, Maria Vittoria Corazza, Paola Di Mascio
2018 Journal of Traffic and Transportation Engineering (English ed. Online)  
h i g h l i g h t s PTW accidents are analyzed by suitable indicator, including the innovative safety potential (SAPO). SAPO determines critical road sections and the range of resources which could be saved. SAPO is usually applied to rural areas and was adapted to describe the phenomena in urban areas. In synergy with the accident rate, SAPO enables to improve the accuracy of road safety analyses. a b s t r a c t Powered two-wheelers (PTWs) provide a suitable mode for a large portion of
more » ... ion in many cities due to rider's personal convenience and the vehicle supposed easiness of manoeuvring. At the same time PTWs present serious safety issues compared to other motorized vehicles. This paper reports the main outcome of study carried out in Rome, where this mode is very popular and assesses the economic efforts to make infrastructure safer for PTWs. The methodology, extensively described in the paper, includes three steps: the accident analysis, the development of economic indicators of accidents costs, the maintenance priority. In the first step the location of the PTWs local accidents are identified, then the accidents are analyzed by means of the suitable indicators and, among these the safety potential (SAPO). Lastly, according to the results of the analyzed indicators the need of infrastructure maintenance will be defined. Usually SAPO is applied to rural areas, but here it has been adapted to describe the phenomena of the urban area in hand. As a result, the estimation of the saving potential to improve the infrastructure safety levels, thus reducing the amount of accidents, is presented, along with recommendations on how to upscale the SAPO at city level. (A. Ragnoli), (M.V. Corazza), paola.dimascio@ (P. Di Mascio). Peer review under responsibility of Periodical Offices of Chang'an University. Available online at ScienceDirect journal homepage: www .e lsev ie m/ lo cate/ j tte j o u r n a l o f t r a f fi c a n d t r a n s p o r t a t i o n e n g i n e e r i n g ( e n g l i s h e d i t i o n ) 2 0 1 8 ; 5 ( 5 ) : 4 0 6 e4 1 6
doi:10.1016/j.jtte.2018.01.004 fatcat:amphorrqwrhm5ndycyq5vo5t6y