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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
    12
Apr
2022
Technical Reports
Intelligent Crossing Assessment and Traffic Sharing System (i-CATSS)
Author
          Federal Railroad Administration

Subject
                    Grade Crossing Technology,
                    Highway-Rail Grade Crossings

**Keywords:** Crossing safety, crossing monitoring, first responders, delay time, train signal, artificial intelligence, train control
**Abstract:** Researchers developed i-CATSS to detect and predict highway-rail blockages and provide first responders with real-time information of traffic conditions at crossings.
Report Number
              DOT/FRA/ORD-22/15

  Office
              RDI-23
    11
Feb
2022
Technical Reports
Acoustical Warning Device for Locomotive Horns
Author
          Federal Railroad Administration

Subject
                    Grade Crossing Technology

**Keywords:** Acoustic Warning Device, AWD, air horn, variable directivity, grade crossing, sound beam steering, speaker array, locomotive, detectability, noise reduction
**Abstract:** This summarizes the R&D of a variable directivity Acoustic Warning Device (AWD) used as a locomotive horn and a GPS to control an arrangement of directional loudspeakers....
Report Number
              DOT/FRA/ORD-22/08

  Office
              RDI-22
    17
Dec
2020
Technical Reports
Driver Behavior at Highway-Rail Grade Crossings Using NDS and Driving Simulators
Author
          Federal Railroad Administration

Subject
                    Grade Crossing Modeling and Simulation,
                    Highway-Rail Grade Crossings,
                    Human Factors

**Keywords:** Grade crossing, traffic control device, average annual daily traffic, Federal Highway Administration, Federal Railroad Administration, vehicle miles traveled, freight train miles
**Abstract:** Researchers used both naturalistic driving and simulator data to evaluate driver behavior at grade crossings. Most drivers did not look for trains or prepare to stop regardless...
Report Number
              DOT/FRA/ORD-20/47

  Office
              RDI-24
    1
Oct
2020
Technical Reports
New Model for Highway-Rail Grade Crossing Accident Prediction and Severity
Author
          Federal Railroad Administration

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

**Keywords:** New Model for Highway-Rail Grade Crossing Accident Prediction and Severity
**Abstract:** FRA sponsored a research project to develop a new Accident Prediction and Severity Model for highway-rail grade crossings.
Report Number
              DOT/FRA/ORD-20/40

  Office
              RDI-23

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