Estimating the safety performance function for urban unsignalized four-legged one-way intersections in Palermo, Italy

• Autorzy: Giuffrè O. , Granà A. , Giuffrè T. , Marino R. , Marino S.

Identyfikatory

DOI

10.2478/ace-2014-0002

• Języki publikacji: EN

Abstrakty

EN

Starting from consideration that urban intersections are sites with promise for safety and operational improvements, the paper describes the steps taken to develop a crash predictive model for estimating the safety performance of urban unsignalized intersections located in Palermo, Italy. The focus is on unsignalized four-legged one-way intersections widespread in Italian downtowns. The sample considered in the study consist of 92 intersections in Palermo, Italy. For the study were collected crashes occurred in the sites during the years 2006-2012, geometric design and functional characteristics and traffic flow. Results showed that data were overdispersed and NB1 distributed. In order to account for the correlation within responses Generalized Estimating Equations (GEE) were used under different working correlation matrices.

Słowa kluczowe

EN

safety performance function; traffic safety; urban intersection; overdispersion; correlation

PL

funkcja stanu bezpieczeństwa; bezpieczeństwo ruchu; skrzyżowanie miejskie; rozproszenie nadmierne; korelacja

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2014
• Tom: Vol. 60, nr 1
• Strony: 41--54
• Opis fizyczny: Bibliogr. 27 poz., il., tab.

Twórcy

autor

Giuffrè O.

• Department of Civil, Environmental, Aerospace, Materials Engineering, Università di Palermo, Italy

autor

Granà A.

• Department of Civil, Environmental, Aerospace, Materials Engineering, Università di Palermo, Italy

autor

Giuffrè T.

• Faculty of Engineering and Architecture, Università Kore di Enna, Italy

autor

Marino R.

• Department of Energy, Information Engineering and Mathematical Models, Università di Palermo, Italy

autor

Marino S.

• Department of Civil, Environmental, Aerospace, Materials Engineering, Università di Palermo, Italy

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