Effects of Semantic Segmentation Visualization on Trust, Situation Awareness, and Cognitive Load in Highly Automated Vehicles

Author(s):  
Mark Colley ◽  
Benjamin Eder ◽  
Jan Ole Rixen ◽  
Enrico Rukzio
Author(s):  
Paul T. Grogan ◽  
Alparslan Emrah Bayrak

Engineering design games model decision-making activities by incorporating human participants in an entertaining platform. This article distinguishes between design decisions at operational and strategic timescales as important features of engineering design games. Operational decisions consider static and short-term dynamic decisions to establish a player’s situation awareness and initial entertainment. Strategic decisions consider longer-term dynamic decisions subject to large uncertainties to retain player engagement. However, constraints on cognitive load limit the ability to simultaneously address both lower-level operational design decisions and higher-level strategic decisions such as collaboration or sustainability. Partial automation can be introduced to reduce cognitive load for operational decisions and focus additional effort on strategic decisions. To illustrate tradeoffs between operational and strategic decisions, this paper discusses example cases for two existing games: Orbital Federates and EcoRacer. Discussion highlights the role of automation and entertainment in engaging human participants in engineering design games and makes recommendations for design of future engineering design games.


PLoS ONE ◽  
2020 ◽  
Vol 15 (11) ◽  
pp. e0242825
Author(s):  
Callum Mole ◽  
Jami Pekkanen ◽  
William Sheppard ◽  
Tyron Louw ◽  
Richard Romano ◽  
...  

Current and foreseeable automated vehicles are not able to respond appropriately in all circumstances and require human monitoring. An experimental examination of steering automation failure shows that response latency, variability and corrective manoeuvring systematically depend on failure severity and the cognitive load of the driver. The results are formalised into a probabilistic predictive model of response latencies that accounts for failure severity, cognitive load and variability within and between drivers. The model predicts high rates of unsafe outcomes in plausible automation failure scenarios. These findings underline that understanding variability in failure responses is crucial for understanding outcomes in automation failures.


Author(s):  
Justin G. Hollands ◽  
Tzvi Spivak ◽  
Eric W. Kramkowski

Objective: We sought to determine the influence of message presentation rate (MPR) and sensory modality on soldier cognitive load. Background: Soldiers commonly communicate tactical information by radio. The Canadian Army is equipping soldiers with a battle management system (BMS), which also allows them to communicate by text. Method: We varied presentation modality (auditory vs. visual) and MPR (fast or slow) in an experiment involving a tactical scenario. Participants (soldiers) received messages and periodically provided situation reports to higher level command, and the scored reports were used to provide a measure of situation awareness (SA). The detection response task (DRT) and NASA-TLX were used to measure cognitive load. Results: The fast MPR reduced DRT accuracy and increased response times relative to slow MPR. The NASA-TLX results also showed higher subjective workload ratings for several subscales with fast MPR. Messages presented visually produced greater cognitive load, with slower DRT response times for the visual than the auditory condition. SA scores were higher with slower MPR and auditory presentation. There was no statistical interaction of presentation modality and rate for any measure. Conclusion: Fast MPR and visual presentation increased cognitive load and degraded SA. Application: These findings show that the DRT can be used to measure workload effectively in a tactical military context and that the method of information presentation affects how soldiers process information in a BMS.


Author(s):  
Catherine Inibhunu ◽  
Scott Langevin

Maintaining situational awareness of a dynamic global computer network that consists of ten to hundreds of thousands of computers is a complex task for cyber administrators and operators looking to understand, plan and conduct operations in real time. Currently, cyber specialists must manually navigate complex networks by continuous cycles of overviews, drilldowns and manually mapping network incidents to mission impact. This is inefficient as manually maneuvering of network data is laborious, induces cognitive overload, and is prone to errors caused by distractive information resulting in important information and impacts not being seen. We are investigating “FocalPoint” an adaptive level of detail (LOD) recommender system tailored for hierarchical network information structures. FocalPoint reasons about contextual information associated with the network, user task, and user cognitive load to tune the presentation of network visualization displays to improve user performance in perception, comprehension and projection of current situational awareness. Our system is applied to two complex information constructs important to dynamic cyber network operations: network maps and attack graphs. The key innovations include: (a) context-aware automatic tailoring of complex network views, (b) multi-resolution hierarchical graph aggregation, (c) incorporation of new computational models for adaptive-decision making on user tasks, cost/benefit utility and human situation awareness, and (d) user interaction techniques to integrate recommendations into the network viewing system. Our aim is to have a direct impact on planning and operations management for complex networks by; overcoming information overload, preventing tunnel vision, reducing cognitive load, and increasing time available to focus on optimum level of details of the global network space and missions.


Author(s):  
Amudha V. Kamaraj ◽  
Joshua E. Domeyer ◽  
John D. Lee

One way to compensate for the limitations of automated vehicles is to use a remote operator as a fallback controller. Indeed, this has been proposed for fleet management and intermittent vehicle control. However, existing remote operation applications have demonstrated control challenges, such as latency and bandwidth, that inhibit the effectiveness of human operators. Additionally, human factors challenges arising due to the roles of multiple remote operators managing multiple vehicles further complicates these interventions. This paper uses the Systems Theoretic Process Analysis hazard analysis technique to identify system-level issues related to the remote operation of automated vehicles. Human factors challenges are identified through the lens of two control loops that link remote drivers, dispatchers, and vehicle automation. These control loops reveal familiar challenges, such as situation awareness and mental model mismatches, as well as novel challenges, such as poorly synchronized and misaligned control.


Author(s):  
Chihab Nadri ◽  
Sangjin Ko ◽  
Colin Diggs ◽  
Michael Winters ◽  
V. K. Sreehari ◽  
...  

Highly automated driving systems are expected to require the design of new user-vehicle interactions. Sonification can be used to provide contextualized alarms and cues that can increase situation awareness and user experience. In this study, we examined user perceptions of potential use cases for level 4 automated vehicles in online focus group interviews (N=12). Also, in a driving simulator study, we evaluated (1) visual-only display; (2) non-speech with visual display; and (3) speech with visual display with 20 young drivers. Results indicated participants’ interest in the use cases and insight on desired functions in highly automated vehicles. Both audiovisual display conditions resulted in higher situation awareness for drivers than the visual-only condition. Some differences were found between the non-speech and speech conditions suggesting benefits of sonification for both driving and non-driving related auditory use cases. This study will provide guidance on sonification design for highly automated vehicles.


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