Wayne Chi Wei Giang

Wayne Chi Wei Giang
University of Florida | UF · Department of Industrial and Systems Engineering

PhD

About

34
Publications
5,001
Reads
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140
Citations
Additional affiliations
May 2009 - December 2011
University of Waterloo
Position
  • Master's Student

Publications

Publications (34)
Conference Paper
Full-text available
Estimations of variables like travel time are often important for scheduling and logistics decisions. When these estimations are made under high time pressure, visualizations of historical data can be used to help produce more accurate estimates and decisions. In this preliminary study, we examine four visualizations that represent increasing amoun...
Article
Full-text available
Patients undergoing interfacility transfers are at potentially greater risk of adverse or critical events than those in hospital, and efficient transfers play a significant role in reducing mortality and morbidity. Medical dispatchers rely on accurate estimations of transfer time in determining the most appropriate method of transportation, often e...
Conference Paper
Full-text available
This study examines driver engagement with smartwatches and smartphones while driving. Twelve participants (7 novice and 5 experienced smartwatch users) drove in a high-fidelity simulator while receiving notifications from either a smartwatch (Pebble) or a smartphone (LG Nexus 5). It was found that participants had more glances, on average, per not...
Conference Paper
Full-text available
Smartwatches and other wearables are being developed for the consumer market and will most likely be used by drivers, but there is little investigation into their influence on driver behaviour. Smart-watches are able to provide certain smartphone functionalities. For example, they can provide notifi-cations, such as text messages. Because watches a...
Conference Paper
Full-text available
Sonifications are auditory displays that can help operators monitor safety critical data. However, there are very few guidelines that describe the design of effective sonifications. Two parameters that may impact the effectiveness of a sonification are discriminability and perceived urgency. We designed and evaluated four sonifications which varied...
Article
Full-text available
Many individuals with mild cognitive impairment (MCI) struggle with the decision to cease driving prematurely due to cognitive deficiencies in processing speed, memory, attention, judgment, or visuospatial skills. Highly automated vehicles (AVs) can be used as assistive technologies for individuals with MCI, performing all driving tasks for them, a...
Article
Full-text available
Introduction Driving is an essential facilitator of independence, community participation, and quality of life. Drivers with Parkinson's Disease (PD) make more driving errors and fail on-road evaluations more than healthy controls. In-vehicle technologies may mitigate PD-related driving impairments and associated driving errors. Establishing a rigo...
Article
Objective The present study aims to: 1) determine whether the risks associated with distracted walking are influenced by walking environment by estimating the incidence and severity of phone-related distracted walking injuries; and 2) investigate individuals’ perceptions of distracted walking risk within different walking environments to understand...
Article
Robot vacuums are a type of every-day automation and may serve as a possible domain for studying human-automation interactions. Online reviews of four models of autonomous robot vacuums, representing different levels of price and automation, were collected from multiple retailers to understand user interactions and issues encountered. Using a thema...
Article
Individuals often struggle with tasks that involve uncertainty. Uncertainty visualizations are a type of cognitive aid that provides uncertainty information to help people with performing these tasks. However, the literature has shown that uncertainty visualizations differ in the extent they improve individuals’ task performance. We hypothesize tha...
Article
Using phones while walking has been a factor that has led to accidents and injuries. However, few studies have analyzed the propensity of injuries due to distracted walking for different age groups and in different types of walking environments. This study aims to examine the number of emergency department (ED) visits due to distracted walking acro...
Article
Individuals often struggle with tasks that involve uncertainty. Uncertainty visualizations are a type of cognitive aid that provides uncertainty information to help people with performing these tasks. However, the literature has shown that uncertainty visualizations differ in the extent they improve individuals’ task performance. We hypothesize tha...
Article
Background Health insurance enrollment is a difficult financial decision with large health impacts. Challenges such as low health insurance literacy and lack of knowledge about choosing a plan further complicate this decision-making process. Therefore, to support consumers in their choice of a health insurance plan, it is essential to understand ho...
Article
Background Two barriers to effective enrollment decisions are low health insurance literacy and lack of knowledge about how to choose a plan. To remedy these issues, digital decision aids have been used to increase the knowledge of plan options and to guide the decision process. Previous research has shown that the way information is presented in a...
Preprint
BACKGROUND Health insurance enrollment is a difficult financial decision with large health impacts. Challenges such as low health insurance literacy and lack of knowledge about choosing a plan further complicate this decision-making process. Therefore, to support consumers in their choice of a health insurance plan, it is essential to understand ho...
Preprint
BACKGROUND Two barriers to effective enrollment decisions are low health insurance literacy and lack of knowledge about how to choose a plan. To remedy these issues, digital decision aids have been used to increase the knowledge of plan options and to guide the decision process. Previous research has shown that the way information is presented in a...
Article
The ubiquity of smartphones has increased the engagement of phone use during street walking. Unfortunately, the risks of accidents and injuries caused by phone distracted walking are often overlooked. Several laboratory studies have shown that texting while walking can alter cognitive (e.g. reduced situation awareness) and physical (e.g. reduced wa...
Article
A growing body of research has found that distracted walking is a safety concern due to reduced situation awareness and the possibility of compromised gait performance. Distraction tasks, such as texting, browsing social media, and playing games, differ in terms of their physical and cognitive demands. However, few studies have examined whether the...
Article
In this study, the influence of different external weight distribution on human gait and balance during obstacle negotiation maneuvers different age groups was investigated. Eight healthy participants performed different walking tasks on a force plate embedded walkway with different loading while their gait performance was evaluated. Results demons...
Article
Full-text available
Objective: This study evaluated sonification and tactification for encoding urgency of system health status presented in the ground control station (GCS) visual interface of an unmanned aircraft system (UAS), and the observer’s perception of urgency. Background: The barrage of data in the GCS visual interface has the potential to isolate the operat...
Chapter
This work seeks to understand whether the unique features of a smartwatch, compared to a smartphone, mitigate or exacerbate driver distraction due to notifications, and to provide insights about drivers' perceptions of the risks associated with using smartwatches while driving. As smartwatches are gaining popularity among consumers, there is a need...
Article
Medical dispatchers use estimates of patient transfer times to inform dispatch decisions, and decision support tools that assist with time estimation may lead to improved patient outcomes. However, individual differences between medical dispatchers may result in variances in how these tools are used in practice. A study was conducted to explore how...
Article
Full-text available
This work seeks to understand whether the unique features of a smartwatch, compared to a smartphone, mitigate or exacerbate driver distraction due to notifications, and to provide insights about drivers' perceptions of the risks associated with using smartwatches while driving. As smartwatches are gaining popularity among consumers, there is a need...
Article
Full-text available
Air medical transport relies on effective dispatching of air and land vehicles to provide the fastest and best care possible for patient transfers. These difficult dispatch decisions are characterized by high time pressure, uncertainty, and the dynamic and complex environment of medical transportation. This paper describes a preliminary study of th...
Conference Paper
Full-text available
Efficient transfer of patients between facilities is a key component of regionalized critical care systems, but interfacility transfers pose added risks to patients. We created a decision support tool for dispatchers in medical transportation systems which provides estimates of the time to definitive care, the time between receiving the transfer re...
Article
Full-text available
Introduction Timely transfer of patients among facilities within a regionalized critical-care system remains a large obstacle to effective patient care. For medical transport systems where dispatchers are responsible for planning these interfacility transfers, accurate estimates of interfacility transfer times play a large role in planning and reso...
Conference Paper
Full-text available
Driver distraction research primarily focuses on voluntary distraction. Little known research explicitly evaluates driver susceptibility to involuntary distractions. This paper investigates the relationships between glance behavior in response to irrelevant stimuli in a driving simulator and measures of inhibitory control assessed through a modifie...
Conference Paper
Full-text available
ABSTRACT This study investigated the efficacy of a multimodal display ground control station (GCS) for the control of an unmanned aerial vehicle (UAV) to convey system faults and environmental hazards. The participant's task was to fly a short UAV mission, detect critical events, and land safely in possibly strong turbulence and wind shear. While m...
Conference Paper
Full-text available
Current multimodal interfaces make use of several intra-modal perceptual judgements that help users “di-rectly perceive” information. These judgements help users organize and group information with little cog-nitive effort. Cross-modal perceptual relationships are much less commonly used in multimodal inter-faces, but could also provide processing...
Conference Paper
Full-text available
Assisted target detection (ATD) systems are designed to direct the user's attention to relevant areas of the display, but the majority of the research into the use of such systems does not consider the design of the cue itself. Within a search and rescue (SAR) context, there is a possibility that cues designed to facilitate effective search could i...
Technical Report
Full-text available
To improve operational effectiveness for the Canadian Forces (CF), the Joint Unmanned Aerial Vehicle Surveillance Target Acquisition System (JUSTAS) project is acquiring a medium-altitude, long-endurance (MALE) uninhabited aerial vehicle (UAV). In support of the JUSTAS project, Defence Research and Development Canada (DRDC) - Toronto is investigati...
Conference Paper
Full-text available
Assisted target detection (ATD) systems are designed to support operators in complex visual search tasks by determining areas within the visual scene that have a higher probability of containing a target. These locations must somehow be conveyed to the operators via a human-machine interface, and little work has been done on the design of the cues...