Almost all lights here in Christchurch have buttons to request that the lights change, except for a few like https://www.google.com/maps?ll=-43.553027,172.663193&spn... where the button does nothing, and you have to stand on the yellow pad until the lights change, or have a metal bike.

Not everyone understands that you need to keep standing on the pad, or that the bike crossing doesn’t last long enough to walk all the way across.