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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>Work Zone Safety: Behavioral Analysis with Integration of VR and Hardware in the Loop</title>
      <link>https://rip.trb.org/View/1700547</link>
      <description><![CDATA[Despite increased regulations, restrictive measures, and devices used for warnings, work zone injuries and fatalities are still observed at highway construction projects with alarms/notifications being ignored. With a vision to reduce the number of injuries and fatalities, Phase 2 of the research team's worker safety project extends the original scope and adds a Hardware in the Loop (HIL) component to simulate real traffic scenarios through simultaneous interactions with variety of vehicles and deployed sensor data in immersive virtual environments. The project aims to understand the key parameters (e.g., work zone location characteristics, personal vigilance levels, duration of construction work) that play roles in behaviors of workers in response to notifications received from various warning mechanisms (e.g., sound, vibration). Key questions this research answers are, at what conditions workers ignore/response to warnings at work zones? How we can calibrate notification systems for getting responsive actions from workers? What are the modalities, frequencies, and timings of pushing notifications in these calibrated systems? Through wearable sensors and hardware integrated realistic representations of work zones in virtual reality, the team plans to collect worker behavioral and physiological (heart rate) responses to alarms/warnings/notifications issued under various realistic scenarios and modalities of warning mechanisms (e.g., sensory, visual, audial) and analyze these captured data towards understanding human behaviors in response to modalities of notifications.]]></description>
      <pubDate>Thu, 23 Apr 2020 08:18:55 GMT</pubDate>
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      <title>Increasing Work Zone Safety: Worker Behavioral Analysis with Integration of Wearable Sensors and Virtual Reality</title>
      <link>https://rip.trb.org/View/1607555</link>
      <description><![CDATA[Despite increased regulations, restrictive measures, and devices used for warning, work zone injuries and fatalities are still observed at highway construction projects with alarms/notifications being ignored. With a vision to reduce the number of injuries and fatalities, this project aims to understand the key parameters (e.g., work zone location characteristics, personal vigilance levels, types of construction work) that play roles in achieving responsive behaviors in workers. Key questions this research answers are, at what conditions people ignore/response to warnings at work zones? How we can calibrate notification systems for getting responsive actions from workers? What are the modalities, frequencies, and timings of pushing notifications in these calibrated systems? Through wearable sensors and realistic representations of work zones in virtual reality, the research team plans to collect worker behavioral and physiological (heart rate) responses to alarms/warnings/notifications issued under various realistic scenarios and modalities of warning mechanisms (e.g., sensory, visual, audial). With a reinforcement learning based approach, the collected data will be used for determining expected worker/driver behaviors (validated through subjects’ heart rate data) when prompted with an alarm/warning/notification learned from similar behaviors. The outcome of this research will help to calibrate when, at what frequency, and how to (with what modalities) share warnings with habitants of work zones for effective responses towards reduction of incidents.   ]]></description>
      <pubDate>Wed, 22 May 2019 13:19:22 GMT</pubDate>
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