NDLI: Verifica sperimentale della variabilità della soglia soggettiva di rischio per la manovra di sorpasso in funzione della densità veicolare

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Verifica sperimentale della variabilità della soglia soggettiva di rischio per la manovra di sorpasso in funzione della densità veicolare

Content Provider	Semantic Scholar
Author	Blasiis, Maria Rosaria De Benedetto, Carola
Copyright Year	2003
Abstract	The drivers’ risk threshold during passing manoeuvre is here investigated, using Virtual Reality simulations, and discussed. Different conditions of traffic flows have been considered. The safe passing manoeuvres have been identified considering the sight distances. Five scenarios with increasing traffic flows have been implemented. For each scenario, the successfully ended passing manoeuvres, the aborted ones, the hazardous ones and the accidents have been computed. The outcomes processing shows how the accepted risk threshold varies when the disturbs induced by an increasing traffic flows crucially change. The final results and the significance of the experiments make it possible a generalization for the road design. 1. IL SORPASSO SU CORSIA “ILLEGALE” E’ noto che il sorpasso rappresenta per la viabilità ordinaria una manovra a rischio, da cui discendono la maggior parte degli incidenti con danni alle persone [1]. La vigente normativa tecnica si fa carico del problema imponendo una distanza di visibilità che ipotizza una costanza del tempo di manovra (10 secondi) indipendente dalle condizioni di circolazione. Per la viabilità ad unica carreggiata, con una sola corsia per senso di marcia, questo criterio può esprimere una reale condizione di sicurezza solo se si ammette che l’utente “mediamente prudente” rinunci alla manovra quando non sia disponibile una visuale libera almeno pari alla distanza di visibilità normalizzata.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.siiv.net/ricerca/siiv2003/mat/convegno/SessioneB/Benedetto_DeBlasiis.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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