Railroad grade crossing passive signing study. Interim report.
| Data(s) |
05/02/1977
|
|---|---|
| Resumo |
Federal Highway Administration, Office of Research, Washington, D.C. Mode of access: Internet. Author corporate affiliation: Transportation Systems Center, Cambridge, Mass. Report covers the period July 1975 to March 1976 Subject code: CDJI Subject code: HBD Subject code: KBK Subject code: NKHL Subject code: PDEE |
| 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. #Rural areas. #Railroad grade crossings. #Measures of effectiveness. #Warning Signs/ Warning Signals. #Rural. #Railway Crossings. #Information Seeking. #Effectiveness. |
| Tipo |
text |
