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Effects of Video Quality on Perception and Reaction Time in Video-based Remote Train Control

Brandenburger, Niels and Strauss, Friedrich Maximilian and Naumann, Anja (2023) Effects of Video Quality on Perception and Reaction Time in Video-based Remote Train Control. Human Factors and Ergonomics Society Europe Chapter Annual Meeting, 26.-28. Apr. 2023, Liverpool, UK.

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Official URL: https://www.hfes-europe.org/wp-content/uploads/2014/05/AbstractsLiverpool2023.pdf


High grades of railway automation feature autonomous and automatic train service in combination with human remote control and recovery in cases of disruptions. For human remote control, video footage is a crucial information source and questions what minimum video quality is required to ensure accurate visual perception arises. Research showed various factors to determine human perception of video footage, most notably frame rate and bitrate. Yet, it remains unclear, how these metrics interact and effect visual perception and subsequent reaction times. This study aimed at establishing the effects of framerate and bitrate on perception accuracy and reaction times in a choice-reaction time setting. Higher bit and frame rate were hypothesized to go along with more accurate perception and faster responses. With data collection ongoing, so far 18 participants were shown 36, 10 seconds long video sequences showing the front view from a train cab with light signals and distance markers as target stimuli. Video quality was manipulated in bitrate (24795, 6000, 1000 bps) and frame rate (25, 15, 5 fps). Participants indicated light signal colour and distance marker values. Preliminary analysis supports the hypothesized effects. A finalized analysis will be presented and implications for remote control in railway automation discussed.

Item URL in elib:https://elib.dlr.de/194929/
Document Type:Conference or Workshop Item (Speech)
Title:Effects of Video Quality on Perception and Reaction Time in Video-based Remote Train Control
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Brandenburger, NielsUNSPECIFIEDhttps://orcid.org/0000-0003-0418-8365UNSPECIFIED
Date:26 April 2023
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Page Range:p. 13
EditorsEmailEditor's ORCID iDORCID Put Code
Fairclough, StephenLiverpool John Moores UniversityUNSPECIFIEDUNSPECIFIED
Brookhuis, KarelUniversity of Groningen, Delft University of TechnologyUNSPECIFIEDUNSPECIFIED
De Waard, DickUniversity of Groningen, Delft University of TechnologyUNSPECIFIEDUNSPECIFIED
Series Name:HFES Annual Conference Book of Abtracts
Keywords:Remote Train Control; Video Quality; Human Performance; Bitrate; Framerate
Event Title:Human Factors and Ergonomics Society Europe Chapter Annual Meeting
Event Location:Liverpool, UK
Event Type:international Conference
Event Dates:26.-28. Apr. 2023
Organizer:HFES Europe Chapter
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Rail Transport
DLR - Research area:Transport
DLR - Program:V SC Schienenverkehr
DLR - Research theme (Project):V - TraCo - Train Control and Management
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Transportation Systems > Design and Evaluation of Mobility Solutions, BA
Deposited By: Brandenburger, Niels
Deposited On:05 May 2023 12:19
Last Modified:05 May 2023 12:19

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