Traffic Signal Design Manual

Full Manual, (58 MB)

Use of the type 3RCF signal head is discouraged due to current controller cabinet hardware limitations and resulting custom configurations. A standard for type 3RCF signals will only be developed for the new serial controller cabinet. There will be no further development of a standard for the current controller cabinet.

Draft and Prior Editions

Please contact us for older editions of this manual.

The yearly update for the Traffic Signal Design Manual is ready for review. Only the chapters with content changes are provided, with track changes on. See Chapter 1 for a comprehensive list of all changes for 2027. Please send any comments/feedback to Katie Johnson by Nov. 15th. All comments will be addressed before it is published in January 2027.