Using light emitting diodes in traffic signals

This archived document is maintained by the Oregon State Library as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes."July 1998."Funded in part by the FHWA's Priority Technology ProgramPrepared by the Oregon Dept. of Transportation's Research Unit and Traffic Signal Services Unit and sponsored by the Federal Highway AdministrationIncludes bibliographical references (p. 11)Mode of access: Internet from the Oregon Government Publications Collection.Final report. 1993-199