Florida ATMA Pilot Demonstration and Evaluation
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Summary
This study evaluates the operational feasibility and safety performance of Autonomous Truck-Mounted Attenuators (ATMAs) to address high rates of fatal work zone crashes in Florida. The research was motivated by data indicating that Florida has consistently ranked second in the nation for fatal work zone crashes, with workers present in the majority of severe incidents. The project aimed to pilot ATMA technology, which eliminates the need for a human operator in the impact protection vehicle, thereby enhancing worker safety. The study involved leasing an ATMA system from Kratos Defense, conducting closed-loop and open-road tests, and performing a benefit-cost analysis to assess the technology's viability for widespread deployment. The experimental design comprised two phases: closed-loop testing and active mobile work zone demonstrations. Closed-loop tests were conducted at two locations in Gainesville, Florida, covering 26 specific scenarios focused on safety functions, following accuracy, lateral control, turning capabilities, obstacle detection, and communication reliability. Open-road tests were performed on six public roadways, including interstates and state roads, where the ATMA shielded a Falling Weight Deflectometer (FWD) during pavement testing. Data collection utilized high-resolution log files, dashcam footage, drone surveillance, and manual inspections to validate system performance against predefined objectives. Results from the 26 closed-loop tests indicated that the ATMA performed as expected in 23 scenarios. Exceptions occurred in tests involving minimum turn radius, roundabout navigation, and leader vehicle reversal. Critical errors included a failure to stop when detecting a low-profile obstacle and abrupt deviations from the intended path. In open-road field tests, three of six runs completed as expected, while three encountered exceptions related to path drifting, misreported collision events, and difficulties navigating tight turns or intersections. The study also developed a benefit-cost analysis tool, which calculated a benefit-cost ratio of 0.76 for a hypothetical agency with 50 TMAs, based on mitigated crash costs versus procurement and maintenance expenses. The authors conclude that while ATMAs hold significant potential to improve work zone safety, current system limitations require enhancement before full market penetration. Key recommendations include avoiding roundabouts and tight turns, improving sensor configurations for low-height obstacle detection, and refining stop-and-go operational capabilities. The study emphasizes the critical need for comprehensive operator training, particularly for lead vehicle drivers who define the path for the autonomous follower. Additionally, the authors suggest developing specific traffic control guidelines for ATMA operations and conducting further testing without safety operators to fully validate the technology’s ability to eliminate worker exposure to crash risks.
Key finding
The ATMA performed as expected in 23 of 26 closed-loop tests but exhibited critical errors in obstacle detection and path deviation, while field tests highlighted significant challenges with roundabout navigation and GPS connectivity.
Methodology
field_study
Provenance
The full processing record for this entry. Every stage of this paper's journey through the pipeline is logged — what ran, with which tool and model, how many attempts it took, and when it last completed. Discovered via bulk_ingest_rosap on 2026-05-23 (6 acquisition events logged).
| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
| discover | success | rosap | — | — | 2 | 2026-05-23 |
| archive | success | — | — | — | 1 | 2026-05-23 |
| extract | success | cached | — | — | 2 | 2026-06-10 |
| clean | success | — | — | — | 1 | 2026-06-01 |
| chunk | success | — | — | — | 1 | 2026-06-01 |
| embed | success | — | — | — | 1 | 2026-06-02 |
| enrich | success | — | — | — | 1 | 2026-05-23 |
| promote | success | — | — | — | 1 | 2026-05-23 |
| summarize | success | llm | qwen3.6-27b-prismaquant | summ-v5 | 3 | 2026-06-10 |
| tag | success | vector_similarity | — | — | 24 | 2026-06-11 |
| verify | success | — | — | — | 2 | 2026-06-10 |
Summary generated by qwen3.6-27b-prismaquant on 2026-06-10; verification: verified.
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- Methodological Resource: validation psychometrics