Improvement of the effectiveness of motorist warnings at railroad highway grade crossings. Final report.
| Data(s) |
02/01/1977
|
|---|---|
| Resumo |
Federal Railroad Administration, Office of Research and Development, Washington, D.C. Mode of access: Internet. Author corporate affiliation: Transportation Systems Center, Cambridge, Mass. Report covers the period July 1974 through June 1976 Subject code: CDJI Subject code: CIF Subject code: HBD Subject code: RCGE Subject code: YEM |
| Formato |
bib |
| Identificador | |
| Idioma(s) |
eng |
| Direitos |
Items in this record are available as Public Domain, Google-digitized. View access and use profile at http://www.hathitrust.org/access_use#pd-google. Please see individual items for rights and use statements. |
| Palavras-Chave | #Warning signs. #Standardization. #Specifications. #Regulations. #Railroad grade crossings. #Flashing traffic signals. #Warning Signs/ Warning Signals. #Regulatory Standards. #Railway Crossings. #Flashing Signals. |
| Tipo |
text |
