I used to live in Hawaii when I was small, and I remember that none of Hawaii's traffic signals had backplates on them. However, I think I have seen some photos of recent installations that include the backplates.
I was wondering, when were backplates first used in Hawaii? Also, were they first used by HDOT or one of the cities?
What island? I once lived on Kauai (Koloa area).
Quote from: hm insulators on December 15, 2015, 05:46:13 PM
What island? I once lived on Kauai (Koloa area).
I lived on Oahu in Honolulu.