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            Document Type
      Reports
  (28)
Subjects
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  (1015)Evaluation
  (91)Highway-Rail Grade Crossings
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  (47)Facilities & Test Equipment
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  (30)(-)
Grade Crossing Technology
  (28)Highway-Rail Grade Crossing Warning Systems
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Grade Crossing Technology
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52550
  
  

  29
Aug
2022
Technical Reports
Feasibility of a Train Horn with Optimized Directivity: Environmental and Occupational Noise Benefit of an Ideal Train Horn
Author
          Federal Railroad Administration

Subject
                    Grade Crossing Technology,
                    Highway-Rail Grade Crossings

**Keywords:** Horn, noise, highway-rail grade crossing, safety, environment, occupational, detectability, acoustic hailing device, rolling stock, train horn
**Abstract:** This views the feasibility of and suggests an acoustical specification for an optimized horn. Decibel of the horn inside vehicles was compared to the optimized horn and several...
Report Number
              DOT/FRA/ORD-22/32

  Office
              RDI-22
    8
Feb
2022
Research Results
Railroad Trespass Detection Using Deep Learning-Based Computer Vision
Author
          Federal Railroad Administration

Subject
                    Grade Crossing Modeling and Simulation,
                    Grade Crossing Technology,
                    Highway-Rail Grade Crossings

**Keywords:** Automated railroad trespass detection, artificial intelligence, AI, machine learning, railroad trespassing, grade crossing violations, railroad safety
**Abstract:** FRA has sponsored research to develop an AI software application for automating the detection of grade crossing violations and trespassing activities from static camera feeds...
Report Number
              RR 22-04

  Office
              RDI-23
    24
Aug
2020
Research Results
An Automated, Drone-Based Inspection System
Author
          Federal Railroad Administration

Subject
                    Grade Crossing Technology,
                    Highway-Rail Grade Crossings

**Keywords:** UAS, unmanned, aerial, drone, automated, grade crossing, infrastructure, railway, slope, vertical profile
**Abstract:** Researchers under SBIR contract developed a drone-based, automated grade crossing inspection system to check for humped conditions, vehicle sightlines and safety signage.
Report Number
              RR 20-14

  Office
              RDI-21
    2
Dec
2019
Technical Reports
Analysis of Non-Track-Circuit Highway-Rail Grade Crossing Train Detection Technologies
Author
          Federal Railroad Administration

Subject
                    Grade Crossing Technology,
                    Highway-Rail Grade Crossings

**Keywords:** Highway-rail, grade crossing, accident prediction formula, acoustic train detection, fiber-Bragg grating, magnetometer, seismic train detection, track circuits, train detection, warning device effectiveness, warning device upgrade, wheel detectors, safety
**Abstract:** This study assessed whether devices that did not rely on track circuits to detect trains were suitable to deploy active warnings at grade crossings.
Report Number
              DOT/FRA/ORD-19/47

  Office
              RDI-23
    28
Jun
2019
Technical Reports
Effectiveness of LED-Enhanced Signs in Reducing Incidents of Vehicles Stopping on Tracks
Author
          Federal Railroad Administration

Subject
                    Grade Crossing Technology,
                    Highway-Rail Grade Crossing Warning Systems

**Keywords:** Highway-rail, grade crossing, driver behavior, railroads, safety, signage, LED-enhanced signs, violations, dynamic envelope
**Abstract:** This study examined whether LED-enhanced R8-8 ("Do Not Stop on Tracks") signs could significantly reduce the frequency of vehicles stopping on tracks.
Report Number
              DOT/FRA/ORD-19/21

  Office
              RDI-23

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