Effectiveness of flashing arrow boards during moving maintenance operations. Final report.

Federal Highway Administration, Washington, D.C.

Crash tests of light-post thrie-beam traffic barriers. Final report.

Federal Highway Administration, Office of Research, Washington, D.C.

Crash tests of sharply curved light-post guiderail. Third interim report.

Federal Highway Administration, Office of Research, Washington, D.C.

Annual report.

The Board was abolished in 1917; work taken over by the Department of Labor.

Performance of a gravel-bed truck-arrestor system.

Federal Highway Administration, Washington, D.C.

Evaluation of Adirondack Park highway signs. Final report.

Federal Highway Administration, Washington, D.C.

Performance of highway safety devices. Final report.

Federal Highway Administration, Washington, D.C.

Evaluation of raised snowplowable pavement markers. Final report.

Federal Highway Administration, Office of Research, Washington, D.C.

Proceedings of the ... annual convention of the California State Federation of Labor.

Description based on: 20th (1919).

Report.

1917/18- issued as Bulletin, State board of education.

A summary of experimental concrete pavements in New York. Final report.

Federal Highway Administration, Office of Research, Development, and Technology, Washington, D.C.

Movable concrete median barrier: risk analysis of deflection into opposing traffic.

Federal Highway Administration, Office of Research, Development, and Technology, Washington, D.C.

Performance of two ice-retardant overlays. Final report.

Federal Highway Administration, Office of Research, Development and Technology, Washington, D.C.

Crash tests of construction zone traffic barriers. Second interim report.

Federal Highway Administration, Office of Research, Washington, D.C.

Development of an economic model to compare median barrier costs. Second interim report.

Federal Highway Administration, Office of Research, Development and Technology, Washington, D.C.