Standby power for railroad-highway grade crossing warning systems. Final report.

Federal Railroad Administration, Office of Rail Safety Research, Washington, D.C.

Potential means of cost reduction in grade crossing automatic gate systems. Volume I: overview and low cost railroad/highway grade crossing gate systems. Final report.

Transportation Systems Center, Cambridge, Mass.

Potential means of cost reduction in grade crossing automatic gate systems. Volume II: improved gate arm concepts for railroad/highway grade crossings. Final report.

Transportation Systems Center, Cambridge, Mass.

Rail-highway crossing warning device - life cycle cost analysis. Final report.

Federal Railroad Administration, Office of Safety, Washington, D.C.

A study of state programs for rail-highway grade crossing improvements. Final report.

Federal Railroad Administration, Office of Policy and Program Development, Washington, D.C.

Innovative concepts and technology for railroad-highway grade crossing motorist warning systems. Vol. I: overview and concept generation and analysis. Final report.

Transportation Systems Center, Cambridge, Mass.

Innovative concepts and technology for railroad-highway grade crossing motorist warning systems. Vol. II: the generation and analysis of alternative concepts. Final report.

Transportation Systems Center, Cambridge, Mass.

Rail-highway crossing hazard prediction research results. Final report.

Transportation Department, Washington, D.C.

The Railway review

Mode of access: Internet.

Pliego de peticiones del personal de empleados y obreros de la sección boliviana del Ferrocarril de Antofagasta a Bolivia y de "The Bolivia Railway Co."

Mode of access: Internet.

Students crossing State St. in front of Michigan Union. Taken for the Michigan Alumnus, April, 1947

On negative sleeve: A suggestion of warmer days ahead for winter-weary Michiganders is contained in this early spring picture, taken from the Michigan Union looking across to Alumni Memorial Hall just as students leave classes at the noon hour

Impact assessment of the Virginia Railway Express Commuter Rail on land use development patterns in northern Virginia.

Federal Transit Administration, Washington, D.C.

The Mexican southern railway, to be constructed under a charter from the Mexican government, through the states of Vera Cruz and Oaxaca.

Mode of access: Internet.