Technological innovation in grade crossing protective systems. Technical report.

Description

Main Author

Hopkins, John B.

Related Names

Hazel, M. E.

Language(s)

English

Published

1971.

Subjects

Transducers.
Sensors.
Railroad grade crossings.
Radar.
Prevention.
Microwave communication systems.
Highway engineering.
Grade crossing protection systems.
Electrical impedance.
Costs.
Collisions.
Sensors/ Transducers.
Railway Crossings.
Microwave Systems.
Highway Engineering Costs.
Crossing Signals.
Collision Prevention/ Collision Avoidance.

Physical Description

89 p. : ref. graphs. tables.

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