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U.S. DOT FY 2026 Phase I Pre-Solicitation Q&A



5/29/26 Update: The Pre-solicitation is now closed. Topic questions are no longer being accepted. * * *

This U.S. DOT Small Business Innovation Research (SBIR) Pre-solicitation Q&A Forum provides small businesses an opportunity to submit clarifying questions on the topics published in the U.S. DOT Fiscal Year (FY) 2026 Phase I Pre-Solicitation. Questions will be answered by the Technical Experts/Topic Authors at the U.S. DOT Operating Administrations during this period. Questions shall be limited to improving the understanding of a particular topic's requirements and should not share proposal ideas nor proprietary information.

The U.S. DOT’s FY 2026 Pre-Solicitation period is April 29, 2026, through May 29, 2026, at 5:00 pm Eastern Time (ET). Only questions posted within this period will be responded to.

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Search: Browse the existing questions by category to find the topic you are interested in and to see if your question has already been addressed. If you see a question, you are also interested in, you can add a vote to the question, or leave a comment.

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  1. Select the research topic your question is related to from the drop-down menu that appears when you begin typing.
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Please note, all comments will be public information. Potential offerors shall not include in the question(s) or comment(s) any information that they do not wish to be made public. Telephone inquiries or meeting requests will not be addressed and may be removed. The U.S. DOT shall not respond to requests for advice or guidance on any offeror’s solution to any SBIR topic and shall not consider any submitted materials other than questions.

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229 results found

  1. On-Edge Safety Monitoring One key component for this to succeed is real-time analysis of near-miss instances and unreasonable driving behavi

    On-Edge Safety Monitoring
    One key component for this to succeed is real-time analysis of near-miss instances and unreasonable driving behaviors that can also be used universally in other applications. Are on-edge, safety anomaly detectors included in the scope of this project, or is it only on AI-driven analytics? Can safety-assured ISO 26262 software also be used in support of ISO 21448 and ISO 8800 efforts?

    3 votes

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  2. Cybersecurity / Data Protection

    For Topic 26-OS2, are there preferred cybersecurity or data protection expectations for Phase I systems utilizing proprietary freight, telematics, or transportation operations data?

    3 votes

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  3. Does 26-OS1 cover intrastate operations under 500 miles, or only interstate long-haul?

    OST-R's topic description references "commercial freight." Does this include intrastate operations under 500 miles, or is the focus on long-haul interstate corridors? Our deployment target includes regional distribution networks — clarifying the operational scope will determine whether 26-OS1 or 26-FH1 is the stronger fit.

    3 votes

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  4. External or Internal Surface Temperature

    Does the solicitation require the coating to indicate temperature thresholds corresponding to internal package temperatures, or is external surface temperature indication sufficient for compliance purposes?"

    1 vote

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  5. Are public transit operators (bus, light rail) considered eligible intended recipients for V2X advisories under this topic?

    Are public transit operators (bus, light rail) considered eligible intended recipients for V2X advisories under this topic, alongside private vehicles and Transportation Management Centers?

    1 vote

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  6. For Phase II field testing, would a partnership with a transit authority satisfy the partner reuqirement?

    For Phase II field testing, would a partnership with a metropolitan transit authority satisfy the requirement for a committed state or local agency partner?

    2 votes

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  7. Can you provide more context on what these predictive safety analytics are?

    Is it more intended towards ADAS type systems which provide predictive safety on a hyper-local and time specific basis, or is it predictive safety on a larger spatial and time scale, such as predicting the next rain storm and recommending alternate routes around areas expected to flood?

    2 votes

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  8. 2 votes

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  9. What specific types of voluntary industry data does the program envision flowing into the Trusted Intermediary framework?

    e.g. which kinds of telematics, maintenance records, or ADAS sensor logs are the DOT looking to have shared through the trusted intermediary framework?

    2 votes

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  10. 26-OS2 Phase III transition customer and SBIR Catalyst pathway

    For Topic 26-OS2, does the topic have an identified Phase III transition customer (a specific DOT operating administration, state DOT consortium, or commercial carrier) already engaged with Volpe, or is the offeror expected to develop the transition-customer relationship during Phase I/II? Additionally, is this topic part of the DOT SBIR Catalyst pathway with an expedited Phase II-to-Phase III transition?

    2 votes

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  11. Phase I Data Access Expectations

    Several elements of the topic reference existing public and private freight datasets. For Phase I, should offerors assume responsibility for securing access to these datasets, or will the DOT facilitate access to any government-owned or partner data sources for research and validation purposes?

    2 votes

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  12. Does mobile-device-as-OBU architecture count as V2X for low-adoption rate congestion mitigation?

    The topic identifies low connected-vehicle adoption rate as a barrier to V2X deployment in congestion mitigation. Does the topic accept architectures where the "V" in V2X is provided by commercial mobile devices (smartphones in fleet vehicles, eventually consumer devices) rather than dedicated OBU hardware, provided the edge node still produces standards-compliant SAE J2735 messages for downstream infrastructure and vehicles? This approach directly addresses the adoption rate problem the topic identifies, but it inverts the traditional V2X hardware assumption. Is this considered responsive to the topic objectives?

    2 votes

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  13. High-intensity LED visual warning array

    The topic states advisories must be delivered to drivers and that the system should function effectively at low connected-vehicle *********** rates. Is a high-intensity LED visual warning array integrated into roadside infrastructure — visible to all vehicles regardless of V2X equipment status — considered a compliant advisory delivery mechanism under this topic, satisfying the low-*********** performance requirement by providing 100% vehicle coverage as a parallel channel alongside V2X RSA broadcast?

    2 votes

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  14. V2X advisories and high-intensity visual warnings

    Is a corridor-level RSU deployment that delivers location-specific V2X advisories and high-intensity visual warnings to vehicles approaching a detected safety event — such as a wrong-way driver, stalled vehicle, or work zone intrusion — considered responsive to the congestion prevention and mitigation scope of topic 26-FH1, even where the primary benefit metric is conflict reduction and incident prevention rather than travel time reduction alone?

    2 votes

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  15. 26-OS2 are all three pillars required for a responsive Phase I

    Are all three pillars -- multimodal data integration, edge analytics, and federated learning -- required components of a responsive Phase I proposal, or is the language illustrative, such that a proposal could responsively address one or two of the three with strong justification? In particular, is federated learning across carrier/agency boundaries considered in-scope for a 6-month Phase I, or is centralized model training with a federated-learning Phase II roadmap acceptable feasibility evidence, given that cross-stakeholder data-sharing agreements typically exceed a 6-month window?

    2 votes

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  16. Differentiation from Commercial Navigation Platforms

    The topic envisions location-specific advisories delivered to drivers. How should proposers differentiate their system from existing commercial navigation platforms (e.g., Waze, Google Maps) that already provide real-time detour and speed advisories? Is the key differentiator the V2X delivery mechanism, the TMC integration, or the proactive zone-based approach?

    2 votes

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  17. Would a Phase I effort that validates predictive safety indicators using a limited, structured dataset be considered responsive, or is acces

    Would a Phase I effort that validates predictive safety indicators using a limited, structured dataset be considered responsive, or is access to large-scale operational datasets expected at the feasibility stage?

    2 votes

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  18. For Topic 26-OS1, would structured training-performance and debrief data be considered an acceptable data source for developing predictive s

    For Topic 26-OS1, would structured training-performance and debrief data be considered an acceptable data source for developing predictive safety indicators, or is the topic limited to operational data generated directly in commercial transport environments?

    2 votes

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  19. For Phase I, would a project focused on demonstrating the feasibility of an explainable predictive model and secure data architecture, rathe

    For Phase I, would a project focused on demonstrating the feasibility of an explainable predictive model and secure data architecture, rather than a full operational deployment, be considered responsive to the topic’s desired outcomes?

    2 votes

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  20. Would human-performance and readiness indicators, including instructor-observed behavioral or operational markers, be considered within scop

    Would human-performance and readiness indicators, including instructor-observed behavioral or operational markers, be considered within scope under the topic’s interest in comprehensive health modeling?

    2 votes

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