Improving driver safety tolerance zone through holistic analysis of road, vehicle and behavioural risk factors
Abstract
Road safety is a complex issue influenced by a wide range of factors, including road conditions, vehicle characteristics and driver behaviour. The aim of this PhD thesis was to improve driver Safety Tolerance Zone (STZ) through a holistic analysis of road, vehicle and behavioural risk factors. More specifically, the impact of task complexity and coping capacity on crash risk was examined. Towards that end, data from 190 drivers who participated in a large on-road and simulator driving experiment were exploited. An innovative methodology, consisting of both statistical and machine learning analyses, has been developed and implemented, including Generalized Linear Models (GLMs), Structural Equation Models (SEMs), Neural Networks (NNs), Decision Trees (DTs), Random Forests (RFs) and k-Nearest Neighbors (kNNs). SEMs demonstrated that task complexity was positively correlated with risk, indicating that driving during night-time or in adverse weather conditions can exacerbate the challenges ...
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