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Road users rarely use explicit communication when interacting in today’s traffic: implications for automated vehicles

Lee, Yee Mun and Madigan, Ruth and Giles, Oscar and Garach-Morcillo, Laura and Markkula, Gustav and Fox, Charles and Camara, Fanta and Rothmueller, Markus and Vendelbo-Larsen, Signe Alexandra and Rasmussen, Pernille Holm and Dietrich, André and Nathanael, Dimitris and Portouli, Villy and Schieben, Anna Maria and Merat, Natasha (2020) Road users rarely use explicit communication when interacting in today’s traffic: implications for automated vehicles. Cognition, Technology and Work. Springer. doi: 10.1007/s10111-020-00635. ISSN 1435-5558.

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Official URL: https://doi.org/10.1007/s10111-020-00635-y

Abstract

To be successful, automated vehicles (AVs) need to be able to manoeuvre in mixed trafc in a way that will be accepted by road users, and maximises trafc safety and efciency. A likely prerequisite for this success is for AVs to be able to communicate efectively with other road users in a complex trafc environment. The current study, conducted as part of the European project interACT, investigates the communication strategies used by drivers and pedestrians while crossing the road at six observed locations, across three European countries. In total, 701 road user interactions were observed and annotated, using an observation protocol developed for this purpose. The observation protocols identifed 20 event categories, observed from the approaching vehicles/drivers and pedestrians. These included information about movement, looking behaviour, hand gestures, and signals used, as well as some demographic data. These observations illustrated that explicit communication techniques, such as honking, fashing headlights by drivers, or hand gestures by drivers and pedestrians, rarely occurred. This observation was consistent across sites. In addition, a follow-on questionnaire, administered to a sub-set of the observed pedestrians after crossing the road, found that when contemplating a crossing, pedestrians were more likely to use vehiclebased behaviour, rather than communication cues from the driver. Overall, the fndings suggest that vehicle-based movement information such as yielding cues are more likely to be used by pedestrians while crossing the road, compared to explicit communication cues from drivers, although some cultural diferences were observed. The implications of these fndings are discussed with respect to design of suitable external interfaces and communication of intent by future automated vehicles.

Item URL in elib:https://elib.dlr.de/140668/
Document Type:Article
Title:Road users rarely use explicit communication when interacting in today’s traffic: implications for automated vehicles
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Lee, Yee MunITS LeedsUNSPECIFIED
Madigan, RuthITS LeedsUNSPECIFIED
Giles, OscarITS LeedsUNSPECIFIED
Garach-Morcillo, LauraITS LeedsUNSPECIFIED
Markkula, Gustavits leedsUNSPECIFIED
Fox, CharlesITS LeedsUNSPECIFIED
Camara, FantaFanta.Camara (at) dlr.deUNSPECIFIED
Rothmueller, MarkusITS LeedsUNSPECIFIED
Vendelbo-Larsen, Signe AlexandraITS LeedsUNSPECIFIED
Rasmussen, Pernille HolmITS LeedsUNSPECIFIED
Dietrich, AndréTUMUNSPECIFIED
Nathanael, DimitrisICCSUNSPECIFIED
Portouli, VillyICCSUNSPECIFIED
Schieben, Anna MariaAnna.Schieben (at) dlr.dehttps://orcid.org/0000-0003-3608-2004
Merat, NatashaITS LeedsUNSPECIFIED
Date:2020
Journal or Publication Title:Cognition, Technology and Work
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1007/s10111-020-00635
Publisher:Springer
ISSN:1435-5558
Status:Published
Keywords:External-HMI · Human machine interface · Automated vehicles · Communication and interaction · Road safety · Pedestrians
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Transport System
DLR - Research area:Transport
DLR - Program:V VS - Verkehrssystem
DLR - Research theme (Project):V - Zukunftsbilder eines automatisierten integrierten Verkehrssystems
Location: Braunschweig
Institutes and Institutions:Institute of Transportation Systems > Development of vehicle functions
Deposited By: Schindler, Anne Mareike
Deposited On:27 Jan 2021 07:25
Last Modified:27 Jan 2021 07:25

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