Safety features of stop signs at rail-highway grade crossings /
| Main Author: | |
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| Corporate Authors: | , |
| Other Authors: | , |
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
Dept. of Transportation, Federal Highway Administration, Offices of Research & Development ;
1978.
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| Series: | Report - Federal Highway Administration ; no. FHWA-RD-78-40
Report - Federal Highway Administration ; no. FHWA-RD-78-41 |
| Subjects: |
| Item Description: | Performed by BioTechnology, Inc., under contract number DOT-FH-11-9192. Final reports; volume 1. April 1978, volume 2. March 1978. |
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| Physical Description: | 2 volumes : illustrations ; 28 cm. |
| Bibliography: | Includes bibliographical references. |