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11
Dec
2019
Technical Reports
Using an Unmanned Aerial Vehicle to Produce Accurate Grade Crossing Profile Data
Subject
Grade Crossing Technology,
Highway-Rail Grade Crossings
Keywords: Highway-rail, grade crossing, humped crossing, photogrammetry, LiDAR
Abstract: This study illustrated the use of unmanned aerial vehicles to measure and develop accurate 3D models of grade crossings at lower cost than LiDAR-based measurements.
Report Number
DOT/FRA/ORD-19/49
Office
RDI-23
2
Dec
2019
Technical Reports
Analysis of Non-Track-Circuit Highway-Rail Grade Crossing Train Detection Technologies
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
8
Oct
2019
Technical Reports
Acoustical Warning Devices as Emergency Warning Systems, Phase 1
Subject
Emergency Notification Systems,
Grade Crossing Technology
Keywords: Emergency warning, train horn, trespassers, music masking sounds, reaction time, acoustic warning device
Abstract: Acoustical warning devices are designed to warn trespassers of an approaching train. This study evaluated the urgency and detectibility of potential warning sounds.
Report Number
DOT/FRA/ORD-19/40
Office
RDI-23
19
Aug
2019
Research Results
Yard Impact Test of a Tank Car
Subject
Hazardous Materials
Keywords: Tank car, stub sill failures, impact test, yard operation, car coupling, draft gear, impact force, transferred energy, anvil configuration, hammer configuration
Abstract: In 2018, the Federal Railroad Administration’s (FRA) Office of Research, Development and Technology conducted a series of impact tests for different car configurations at...
Report Number
RR 19-17
Office
RDI-22
28
Jun
2019
Technical Reports
Effectiveness of LED-Enhanced Signs in Reducing Incidents of Vehicles Stopping on Tracks
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