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Donald Tweedie

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  1. Do you have a preferred existing standardized measure of fatigue we should use for validation?

    1 vote

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    1 comment  ·  U.S. DOT FY 2025 Phase I Pre-Solicitation Q&A » 25-FR4: Human Factors Fatigue Assessment System  ·  Admin →
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    Donald Tweedie commented  · 

    At a minimum, it shall be validated against the NASA-TLX, but other methods are acceptable as needed.

  2. Are you looking for a system to only assess operator fatigue, or would it be desirable for it to also be an alerting system?

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    1 comment  ·  U.S. DOT FY 2025 Phase I Pre-Solicitation Q&A » 25-FR4: Human Factors Fatigue Assessment System  ·  Admin →
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    Donald Tweedie commented  · 

    Currently, this is only being used to assess operator fatigue. The alerting system may be proposed by the vendors for potential commercialization purposes.

  3. Should data be stored long term, and if so, would it be preferred if data was anonymized or tracked to operator profiles?

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    1 comment  ·  U.S. DOT FY 2025 Phase I Pre-Solicitation Q&A » 25-FR4: Human Factors Fatigue Assessment System  ·  Admin →
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    Donald Tweedie commented  · 

    Data should be able to be transferred from the capture system and moved. If the system uses identification or profiles, they should be programmable by the end-user.

  4. Are there any behavioral indicators of fatigue that you do not want to see incorporated in a solution?

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    1 comment  ·  U.S. DOT FY 2025 Phase I Pre-Solicitation Q&A » 25-FR4: Human Factors Fatigue Assessment System  ·  Admin →
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    Donald Tweedie commented  · 

    We have not ruled out any behavioral indicators or antecedents, so long as they are able to be captured via camera and are able to be validated.

  5. Can the system be powered from outlets, or does it need to be battery powered?

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    1 comment  ·  U.S. DOT FY 2025 Phase I Pre-Solicitation Q&A » 25-FR4: Human Factors Fatigue Assessment System  ·  Admin →
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    Donald Tweedie commented  · 

    The system can be powered from standard US power outlets or batteries.

  6. Should the system be portable (easy to install/remove/transport), or will it be installed in a simulator or engine long term?

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    1 comment  ·  U.S. DOT FY 2025 Phase I Pre-Solicitation Q&A » 25-FR4: Human Factors Fatigue Assessment System  ·  Admin →
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    Donald Tweedie commented  · 

    Portability is not a main concern for this initial project.

  7. Would a solution that incorporated a non-intrusive wearable device be in scope?

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    1 comment  ·  U.S. DOT FY 2025 Phase I Pre-Solicitation Q&A » 25-FR4: Human Factors Fatigue Assessment System  ·  Admin →
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    Donald Tweedie commented  · 

    The primary focus of this specific topic area is the implementation of cameras. Proposals may contain additional solutions so long as the cameras are used as detailed in the topic.

  8. It’s noted that NHTSA, FHA, FAA, etc. have had success with similar systems. Why haven’t these systems been adapted for this use case?

    1 vote

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    1 comment  ·  U.S. DOT FY 2025 Phase I Pre-Solicitation Q&A » 25-FR4: Human Factors Fatigue Assessment System  ·  Admin →
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    Donald Tweedie commented  · 

    Primarily due to the actions and inputs an engineer/conductor/etc would use versus a driver of a car or pilot of a plane.

  9. Locomotive engineer standard PPE

    1 vote

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    1 comment  ·  U.S. DOT FY 2025 Phase I Pre-Solicitation Q&A » 25-FR4: Human Factors Fatigue Assessment System  ·  Admin →
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    Donald Tweedie commented  · 

    Currently this will be used for testing in a laboratory setting. PPE may be considered in the proposal.

  10. Have you considered a microphone-based solution that analyses fatigue levels from voice in near-real time as a solution as an extension or a

    2 votes

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    1 comment  ·  U.S. DOT FY 2025 Phase I Pre-Solicitation Q&A » 25-FR4: Human Factors Fatigue Assessment System  ·  Admin →
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    Donald Tweedie commented  · 

    FRA Human Factors Division has not considered a microphone as participants would need to speak to collect the data. That does not mean we would never consider microphones as a viable co-measurement. FRA Human Factors Division is currently interested in a camera-based solution for data collection.

  11. Would solutions that do not propose camera-based solutions be considered for this topic?

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    1 comment  ·  U.S. DOT FY 2025 Phase I Pre-Solicitation Q&A » 25-FR4: Human Factors Fatigue Assessment System  ·  Admin →
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    Donald Tweedie commented  · 

    No, the current preferred method aims to use cameras as they are the least invasive to human subjects.

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