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1
Jun
1971
Technical Reports
Technological Innovation in Grade Crossing Protective Systems
Subject
Grade Crossing Technology,
Highway-Rail Grade Crossings,
Signal and Train Control
Keywords: train detection; microwave telemetry
Abstract: This study describes limitations of innovative grade crossing protective systems (namely, cost) and provides guidelines for developing and using innovative systems.
Office
RDI-23
1
Sep
1970
Technical Reports
Hazardous Materials Tank Cars- Evaluation of Tank Car Shell Construction Material
Subject
Hazardous Materials
Keywords: Hazardous Materials Tank Cars- Evaluation of Tank Car Shell Construction Material
Abstract: A metallurgical analysis of a steel plate sample (the Bell sample) was requested by the Federal Railroad Administration. The steel sample was taken from a tank car (number...
Report Number
DOT/FRA/ORD-75/46
Office
RDI-22
1
Sep
1970
Technical Reports
Heat-Assisted Tunnel Boring Machines
Subject
Facilities & Test Equipment,
Tracks & Structures
Keywords: Tunneling Machine Performance, Laser Technology, Excavation
Abstract: A study was performed to determine: a) the increase in tunneling machine performance in hard rock resulting from heat weakening of the rock in advance of the tunneling machine...
Report Number
FRA-RT-71-63
Office
RDI-22
30
Apr
1970
Technical Reports
Studies for Rail Vehicle Track Structures
Subject
Track,
Track/Train Interactions
Keywords: Track Structures, Concrete Beams and Slabs, Vehicle Dynamics, Track Interactions, Track Costs, Vehicle-Track Interactions
Abstract: Conventional (tie-type) and non-conventional rail vehicle track structures were studied, with the restriction that standard gage and rail-head contour be used. Computer...
Report Number
FRA-RT-71-45
Office
RDI-21
1
Feb
1970
Technical Reports
The Needs and Desires of Travelers in the Northeast Corridor : A Survey of the Dynamics of Mode Choice Decisions
Subject
Evaluation
Keywords: Northeast Corridor, Traveler Needs, Evaluation
Abstract: This report analyzes the needs and desires of travelers in the Northeast Corridor in four ways: the process of mode selection, the influence of the nature of the trip, the value...
Report Number
DOT-FR-9-0048
Office
RRD