NDLI: Are Double-Lane Roundabouts Safe Enough? A CHAID Analysis of Unsafe Driving Behaviors

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Are Double-Lane Roundabouts Safe Enough? A CHAID Analysis of Unsafe Driving Behaviors

Content Provider	MDPI
Author	Pulvirenti, Giulia Distefano, Natalia Leonardi, Salvatore Tollazzi, Tomaz
Copyright Year	2021
Description	This study investigated the nature and causes of unsafe driving behavior at roundabouts through an on-road study. Four urban double-lane roundabouts with different layouts were selected for an on-road study. Sixty-six drivers (41 males and 25 females) aged 18–65 years took part in the study. Unsafe behaviors observed during the in situ survey were divided into three different categories: entry unsafe behaviors, circulation unsafe behaviors, and exit unsafe behaviors. Three chi-square automatic interaction detection (CHAID) analyses were developed in order to analyze the influence of roundabout characteristics and maneuvers on unsafe behaviors at double-lane roundabouts. The results confirmed the awareness that double-lane roundabouts are unsafe and inadvisable. More than half of unsafe driving behaviors were found to be entry unsafe behaviors. Moreover, the entry radius was found to be the geometric variable most influencing unsafe driving behaviors.
Starting Page	20
e-ISSN	2313576X
DOI	10.3390/safety7010020
Journal	Safety
Issue Number	1
Volume Number	7
Language	English
Publisher	MDPI
Publisher Date	2021-03-08
Access Restriction	Open
Subject Keyword	Safety Transportation Science and Technology Road Safety Human Factor Driving Behavior Driver Observation On-road Study Road Design Double-lane Roundabouts
Content Type	Text
Resource Type	Article

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