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



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.

Post: If your question has not already been posted, use the “Type your technical question” box at the bottom of the page to enter your question.
  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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  4. When finished, select “Post idea.” If you registered, you will be able to track responses to your post. Please include only one question or comment per post to help us keep the forum organized.
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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18 results found

  1. Cybersecurity standards

    What cybersecurity standards must the proposed system meet for Phase I (e.g., NIST SP 800-53, FIPS 140-3, FedRAMP, IEEE 1609)? Is *********** testing expected within the Phase I budget?

    1 vote

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  2. Privacy compliance standards

    What privacy and data protection standards are expected for the proposed system (e.g., NIST 800-53, CCPA, anonymization protocols, retention limits)? Are there specific federal or state privacy regulations the proposed system must address in Phase I?

    1 vote

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  3. Vulnerable road user scope

    The topic primarily discusses vehicle congestion. Are advisories targeting vulnerable road users (pedestrians, cyclists) within scope for this topic? If so, must they be addressed in Phase I, or is that a Phase II consideration?

    1 vote

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  4. Cost-benefit analysis baseline

    Phase II requires a cost-benefit analysis. What is the expected comparison baseline: (a) no advisory system at all, (b) existing legacy traffic management without AI/V2X integration, or (c) competing edge-AI systems already in market? What units does DOT prefer for the analysis (delay reduction, fuel savings, emissions, monetized benefits)?

    1 vote

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  5. Specific congestion types in Phase I scope

    The topic lists multiple congestion sources: weather, traffic incidents, work zones, planned special events. Is the Phase I proof-of-concept expected to address one congestion type, several, or all of them? Is there a preferred congestion type for the Phase I demonstration?

    1 vote

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  6. Connected-vehicle *********** assumptions

    Topic uncertainty #4 mentions "low levels of connected-vehicle ********." Is there a specific ******** threshold (e.g., 5%, 10%, 25%) at which the system must perform, or is the system expected to deliver value across a range from 0% (no CV-equipped vehicles) to 100%? Should the Phase I demonstration include scenarios at low CV ***********?

    1 vote

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  7. Geographic scope and impact zone definition

    The topic discusses "a defined geographic area (such as a one-mile by one-mile zone; or adaptively scoped by impact zone)." For Phase I, is a fixed geographic scope expected, or can the system itself dynamically define impact zones based on detected events? What is the minimum spatial coverage expected for the Phase I proof-of-concept?

    1 vote

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  8. Live traffic data access mechanism

    For Phase II, "at least one state or local agency committed to provide access to their live traffic data" is required. Does DOT facilitate or broker this access, or is the proposer responsible for arranging it directly? Are there national programs (e.g., USDOT ITS Data Hub, RITIS) that could substitute for direct agency partnerships?

    1 vote

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  9. Specific Transportation Management Center integration

    The topic mentions "operational strategies to a Transportation Management Center (TMC), and function as a complementary component to enhance existing traffic congestion management." Does DOT have specific TMC platforms or open standards in mind for integration (e.g., NTCIP, TMDD, ATMS systems)? Is integration with at least one specific commercial TMS / ATMS platform required for Phase I?

    1 vote

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  10. Output advisory formats and rendering

    Phase I requires "delivering human-centric advisories." Are advisories expected in a single format (e.g., text-only OBU display) or across multiple modalities (text, voice, visual cues, vehicle dashboard integration, mobile app push)? Is integration with consumer mobile applications (e.g., Apple CarPlay, Android Auto, Waze) considered in scope?

    1 vote

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  11. Outbound-only broadcast vs bidirectional V2X

    Are proposals using a one-way broadcast architecture (infrastructure-to-vehicle, no inbound from vehicles) considered responsive, given that it eliminates handshake latency and reduces cybersecurity exposure? Or does the topic require bidirectional V2X consistent with SAE J2735 / 3GPP Release 16 standards?

    1 vote

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  12. Communication technology stack flexibility

    The topic mentions "ready-to-implement secure V2X communication (such as C-V2X (5G/4G/LTE), Satellite, etc.) or other communication technologies." Is there a preference among these, or is the choice left to the proposer? Are proposals using novel or proprietary communication mechanisms (provided they meet documented latency and security requirements) considered responsive?

    1 vote

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  13. Hardware-in-the-loop testbed expectations

    Phase I requires hardware-in-the-loop simulation testing. Are commercial HIL platforms (e.g., dSPACE, NI VeriStand, CARLA + ROS2) acceptable, or does DOT have a preferred testbed? Is virtual-only simulation acceptable in cases where the architecture is purely software / firmware, or is physical hardware integration required for Phase I?

    1 vote

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  14. Phase I human factors testing depth

    Phase I deliverables include "human-centric design" and human factors testing of advisory messaging. Is the expected depth a small-N usability study within the proof-of-concept (e.g., 5 to 10 participants for comprehension testing), or a statistically powered human factors experiment? Approximately what budget allocation does DOT expect for the human factors component within the Phase I budget cap?

    1 vote

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  15. Phase II agency commitment level and timing

    Phase II requires "at least one state or local agency committed to provide access to live traffic data." At what stage is that commitment expected, and at what level? Is a Letter of Intent or MOU at Phase I proposal time sufficient, or must a binding partnership agreement be in place at Phase II proposal time?

    1 vote

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  16. New infrastructure deployment

    The topic encourages leveraging existing infrastructure (legacy fixed-point detectors, RSUs, third-party feeds). Are proposals deploying new sensing infrastructure (e.g., next-generation roadside units with multi-modal sensing) considered responsive, provided they are designed to interoperate with existing legacy data and fit within the Phase I budget envelope?

    1 vote

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  17. Multi-agent coordination scope

    Topic uncertainty #5 names "how to seamlessly coordinate between multiple local-AI agents to achieve network-wide benefits" as an open question. Does this include sender-side coordination methods (i.e., proactive state propagation between agents before an event), or is the expected scope limited to receiver-side reactive coordination?

    1 vote

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  18. Architecture: edge-distributed mesh vs cloud-edge

    The topic description states "the technical approach envisioned for this SBIR topic aligns with this latter category, which is cloud-edge computing." Would proposals using a fully edge-distributed mesh of perception nodes (with cloud aggregation reserved for non-real-time analytics, model training, and longer-horizon prediction) be considered responsive to this topic, or is a centralized cloud-edge split required?

    1 vote

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