Railroad Grade Crossing Passive Signing Study
archive: archived pipeline: cataloged verified
Get this paper ↗ (full text — opens at the source; we link to it, we don't host it)
Summary
This interim report details Phase I of a study evaluating the effectiveness of seven new passive signing configurations at railroad grade crossings compared to existing base signs. Researchers conducted field experiments at five sites in Ohio and one site in Maine, collecting data on driver head movement, speed profiles, and other behavioral metrics using manual observation and electronic sensors. The primary finding was that the new signs in Ohio resulted in a statistically significant 19 percent increase in driver head movement, indicating improved attention to potential hazards. However, no significant differences were observed in vehicle speed profiles among the sign configurations, and data from the Maine site were confounded by seasonal and weather effects. The study concluded that certain driver groups, such as females and those with passengers, exhibited safer behaviors, and recommended proceeding to Phase II to test the most promising signs nationally.
Key finding
New passive signing configurations in Ohio produced a statistically significant 19 percent increase in driver head movement compared to base signs, though they did not significantly alter vehicle speed profiles.
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 (7 acquisition events logged).
| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
| discover | success | rosap | — | — | 2 | 2026-05-23 |
| archive | success | — | — | — | 1 | 2026-05-23 |
| extract | skipped | empty | — | — | 4 | 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 | — | 3 | 2026-06-01 |
| tag | success | vector_similarity | — | — | 19 | 2026-06-11 |
| verify | success | — | — | — | 1 | 2026-06-03 |
Summary generated by qwen3.6-27b-prismaquant on 2026-06-01; verification: verified.
Topics
Ranked by relevance to this paper. Hover a topic for its definition.
Information type
What kind of knowledge this paper contributes, grouped by family — independent of topic (what it is about) and method (how it was studied).
- Applied Guidance: countermeasure evaluation