U.S. DOT FY 2026 Phase I Pre-Solicitation Q&A
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Phase II deployment scale
What scale of Phase II deployment does DOT anticipate? A single corridor of a few miles, a multi-corridor network, or a citywide pilot? Approximately how many intersections / nodes is the Phase II target?
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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?
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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?
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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)?
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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?
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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 ***********?
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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?
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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?
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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?
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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?
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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?
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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?
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