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The Influence of Initial Overtrust on Pedestrian Behaviour in Response to Incongruent Behaviour of Connected and Automated Vehicles

Veldhuis, Shawn (2023) The Influence of Initial Overtrust on Pedestrian Behaviour in Response to Incongruent Behaviour of Connected and Automated Vehicles. Master's, Utrecht University.

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Abstract

This study examined how pedestrians interact with connected and automated vehicles (CAVs) of various sizes, whilst using external human-machine interfaces (eHMIs) to improve pedestrian safety. Previous research demonstrated that congruent implicit and explicit CAV communications increased pedestrians' willingness to cross, but has not yet addressed the effect of initial overtrust during incongruent implicit and explicit CAV communication. Using an online video survey, we tested the generalizability of Lau et al.'s (2022) findings in right (Netherlands) and left (UK) driving countries. Additionally, we compared pedestrians’ willingness to cross between participants with initial overtrust and no initial overtrust in the respective countries. Therefore, participants observed rendered videos of a mixed-traffic environment with various-sized CAVs, displaying congruent and incongruent implicit and explicit CAV communication. The results validated Lau et al.'s findings for both countries. However, vehicle size didn't significantly influence crossing behaviour as opposed to Lau et al.'s work. Initial overtrust consistently boosted willingness to cross, irrespective of vehicle size, country, or communication congruency. Countryspecific responses to eHMI status and congruency emphasized the complexity of formulating universal CAV traffic rules. Acknowledging limitations, such as unverified overtrust cut-offs, future work should design more realistic settings for understanding size differences and optimizing CAV interactions and explore the reliability and validity to test initial trust.

Item URL in elib:https://elib.dlr.de/196249/
Document Type:Thesis (Master's)
Title:The Influence of Initial Overtrust on Pedestrian Behaviour in Response to Incongruent Behaviour of Connected and Automated Vehicles
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Veldhuis, ShawnUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:July 2023
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:39
Status:Published
Keywords:Connected and automated vehicles, initial overtrust, mixed traffic, vulnerable road users
Institution:Utrecht University
Department:Applied Cognitive Psychology
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Road Transport
DLR - Research area:Transport
DLR - Program:V ST Straßenverkehr
DLR - Research theme (Project):V - KoKoVI - Koordinierter kooperativer Verkehr mit verteilter, lernender Intelligenz
Location: Braunschweig
Institutes and Institutions:Institute of Transportation Systems > Cooperative Systems, BS
Deposited By: Wilbrink, Marc
Deposited On:28 Jul 2023 13:41
Last Modified:28 Jul 2023 13:41

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