Driver Behavior at Malfunctioning Crossing and Emergency Notification System Sign Awareness

Young, Jared; Flynn, Daniel; France, Megan; Gabree, Scott H. · 2021 · ROSA P / United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development, and Technology

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 study, conducted by the Volpe National Transportation Systems Center for the Federal Railroad Administration, investigates driver awareness and behavior regarding Emergency Notification System (ENS) signs at highway-rail grade crossings. The research was motivated by safety concerns surrounding crossing malfunctions and incidents where drivers failed to report issues or became stuck on tracks. Specifically, the study aimed to determine how sign orientation—parallel to the roadway (facing the driver) versus perpendicular to the tracks—affects a driver’s likelihood of noticing the sign and calling the posted number during emergencies. The researchers employed a driving simulator study involving 40 licensed drivers from the greater Boston area. Participants navigated six virtual scenarios, including functioning crossings, false activations, activation failures, and a condition where the vehicle was stuck on the tracks. The study counterbalanced ENS sign orientations across these scenarios. Data collection utilized head-mounted eye trackers to record glance patterns and post-drive interviews to assess participant intent. The primary dependent variables were binary: whether a driver glanced at the ENS sign for more than 0.5 seconds while in the approach zone, and whether they indicated they would call the number on the sign to report the issue. The results revealed distinct behavioral patterns based on the type of emergency and sign orientation. For gate malfunctions (false activation or activation failure), drivers were significantly more likely to glance at and call the ENS sign when it was positioned parallel to the tracks, facing the approaching vehicle. In these scenarios, over 70% of participants glanced at the parallel signs, compared to less than 20% for perpendicular signs. Conversely, in the "stuck on tracks" scenario, drivers were far more likely to notice and call the ENS sign when it was positioned perpendicular to the tracks. Statistical analysis confirmed that parallel signs were effective for malfunction detection, while perpendicular signs were superior for stuck-vehicle situations. Additionally, female participants were significantly more likely to indicate they would call the ENS number than male participants. The findings suggest that driver expectations for locating emergency information vary depending on the specific hazard encountered. Drivers approaching a malfunctioning crossing look for signs facing them, whereas drivers already on the tracks look for signs oriented along the rail line. The study concludes that using a single sign orientation for both purposes may be ineffective. Furthermore, post-study interviews indicated low general awareness of ENS signs among participants, with none having previously used the system. These results imply that infrastructure design should account for context-specific visibility, and that public education regarding ENS usage is necessary to improve safety outcomes at grade crossings.

Key finding

Drivers were more likely to glance at and call the ENS sign when it was parallel to the tracks during gate malfunctions, but significantly more likely to glance at and call it when it was perpendicular to the tracks while stuck on the tracks.

Methodology

simulator

Sample size: 40

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).

Summary generated by qwen3.6-27b-prismaquant on 2026-06-10; verification: verified.

Topics

Ranked by relevance to this paper. Hover a topic for its definition.

• rail grade crossings
• signaling behavior
• driver vru interaction
• looked but failed to see
• vru facing ehmi

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).

• Methodological Resource: tool software