Type I, LED Inserts
LED inserts, or fixtures, can be placed in newer existing incandescent signal heads at the intersection location. However, only newer signal heads that can convert from incandescent to LED lights will be changed. Completing the work on site saves time by avoiding assembly in the shop using new signal head components.
Type II, Shop Assembly for Mast Arm Install
Work involves building and installing new signal heads with LED inserts and mast arm components. Mast arms are rigid horizontal posts to which signal heads are attached. This type of work requires assembly in the City's Signal Shop.