134 resultados para Grade crossing protection systems.
Resumo:
National Highway Traffic Safety Administration, Washington, D.C.
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Mode of access: Internet.
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"This summary (SW-82ts. 1) of a comprehensive report by Ronald A. Perkins was prepared by James E. Delaney."
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"March 1975."
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"This condensation (SW-9c. 1)--is based on the Ralph Stone and Company, Inc., report by the same title."
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Transportation Department, Joint Program Office for Intelligent Transportation Systems, Washington, D.C.
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"PB 82-190455."
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Mode of access: Internet.
Resumo:
"October 1980."
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Cover title.
Resumo:
National Highway Traffic Safety Administration, Office of Vehicle Safety Compliance, Washington, D.C.
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Mode of access: Internet.
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Mode of access: Internet.
Resumo:
"Contract number 68-C9-0033 and Cooperative Agreement number CR-816862."
Resumo:
Federal solid waste management programs contract no. 68-03-0097.