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  3
Feb
2022
Technical Reports
In-Vehicle Auditory Alerts Literature Review
Author
          Federal Railroad Administration

Subject
                    Grade Crossing and Trespass Outreach/Education,
                    Highway-Rail Grade Crossings

**Keywords:** Highway-rail grade crossing, HRGC, in-vehicle auditory alerts, IVAA, auditory alerts, spatial auditory displays, human factors
**Abstract:** This literature review covers over 70 standards, research, and use cases on the design of in-vehicle auditory alerts (IVAAs) for highway-rail grade crossings (HRGCs).
Report Number
              DOT/FRA/ORD-22/05

  Office
              RDI-24
    4
Sep
2020
Technical Reports
Trespass Risk in Quiet Zones
Author
          Federal Railroad Administration

Subject
                    Trespass Countermeasures,
                    Trespasser Programs

**Keywords:** FRA, railroads, light rail, transit, trespass, right-of-way, quiet zone
**Abstract:** FRA sponsored a before-and-after research project looking at the risk of trespassing in quiet zones.
Report Number
              DOT/FRA/ORD-20/37

  Office
              RDI-23
    25
Aug
2020
Technical Reports
Trespasser Detection on Railroad Property Using Unmanned Aerial Vehicles
Author
          Federal Railroad Administration

Subject
                    Grade Crossing Technology,
                    Highway-Rail Grade Crossings,
                    Trespass Countermeasures

**Keywords:** Highway-rail, grade crossing, humped crossing, photogrammetry, LiDAR
**Abstract:** This research focused on evaluating the applicability, limitation, and effectiveness of using unmanned aerial vehicles (UAVs, or “drones”) for trespass remote detection systems...
Report Number
              DOT/FRA/ORD-20/33

  Office
              RDI-23
    25
Aug
2020
Technical Reports
Trespasser Detection Systems on Railroad Rights-of-Way
Author
          Federal Railroad Administration

Subject
                    Grade Crossing Technology,
                    Highway-Rail Grade Crossings,
                    Trespass Countermeasures

**Keywords:** Highway-rail, grade crossing, humped crossing, photogrammetry, LiDAR
**Abstract:** This research focused on evaluating the effectiveness of fixed ROW trespass remote detection systems and the integration of these systems with law enforcement dispatch...
Report Number
              DOT/FRA/ORD-20/34

  Office
              RDI-23
    12
Jul
2019
Technical Reports
Law Enforcement Strategies for Mitigating Highway-Rail Grade Crossing Risk Factors
Author
          Federal Railroad Administration

Subject
                    Grade Crossing and Trespass Outreach/Education,
                    Highway-Rail Grade Crossings

**Keywords:** Highway-railroad grade crossing safety, law enforcement strategies and initiatives, photo enforcement
**Abstract:** This report discusses law enforcement initiatives for improving grade crossing safety gathered from a working group, including best practices and lessons learned.
Report Number
              DOT/FRA/ORD-19/24

  Office
              RDI-23

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