Investigating the Effect of Driver-Vehicle-Environment Interaction with Risk Through Naturalistic Driving Data
Eva Michelaraki (National Technical University of Athens)
Thodoris Garefalakis (National Technical University of Athens)
Stella Roussou (National Technical University of Athens)
Christos Katrakazas (National Technical University of Athens)
A.P. Afghari (TU Delft - Safety and Security Science)
Evita Papazikou (Loughborough University)
Rachel Talbot (Loughborough University)
Muhammad Adnan (Universiteit Hasselt)
Muhammad Wisal Khattak (Universiteit Hasselt)
Christelle Al Haddad (Technische Universität München)
Md Rakibul Alam (Technische Universität München)
Constantinos Antoniou (Technische Universität München)
E. Papadimitriou (TU Delft - Safety and Security Science)
Tom Brijs (Universiteit Hasselt)
G. Yannis (National Technical University of Athens)
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Abstract
While mobility and safety of drivers are challenged by behavioral changes, the increasingly complex road environment has placed a higher demand on their adaptability. The ultimate goal of this paper was to identify the impact that the balance between task complexity and coping capacity had on crash risk. Towards that aim, an integrated model for understanding the effect of the inter-relationship of task complexity and coping capacity with risk was developed. A vast library of data from a naturalistic driving experiment was created in three countries (i.e., Belgium, UK and Germany) to investigate the most prominent driving behavior indicators available, including speeding, headway, overtaking, duration, distance and harsh events. In order to fulfil the aforementioned objectives, exploratory analysis, such as Generalized Linear Models (GLMs) were developed, and the most appropriate variables associated to the latent variable “task complexity” and “coping capacity” were estimated from the various indicators. Additionally, Structural Equation Models (SEMs) were used to explore how the model variables were inter-related, allowing for both direct and indirect relationships to be modelled. The analyses revealed that higher task complexity levels lead to higher coping capacity by drivers. Additionally, the effect of task complexity on risk was greater than the impact of coping capacity in Belgium and Germany, while mixed results were observed in the UK.
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