Traffic-actuated signals: motorcycles and bicycles.

Existing law, until January 1, 2018, includes among traffic control devices, a traffic-actuated signal that displays one or more of its indications in response to the presence of traffic by mechanical, visual, electrical, or other means, and requires, upon the first placement of a traffic-actuated signal or replacement of the loop detector of a traffic-actuated signal, that the signal be installed and maintained, to the extent feasible and in conformance with professional engineering practices, so as to detect lawful bicycle or motorcycle traffic on the roadway.