Red-signal enforcement lights.
| Other author | United States. Federal Highway Administration. |
| Format | Electronic |
| Publication Info | [Washington, D.C.] : U.S. Dept. of Transportation, Federal Highway Administration, [2009] |
| Description | 1 online resource (2 unnumbered pages) : color illustrations |
| Supplemental Content | http://purl.fdlp.gov/GPO/gpo7420 |
| Subjects |
| General note | Title from title screen (viewed May 11, 2011). |
| General note | "May 2009." |
| General note | "FHWA-SA-09-005." |
| Issued in other form | Paper version: Red-signal enforcement lights |
| GPO item number | 0982-G-11 (online) |
| Govt. docs number | TD 2.30/13:09-005 |