The signals were working correctly. They had closed Talbot Road to disperse a protest by taxi drivers which was causing an obstruction. The bus was trying to turn right which it couldn't due to the closure, and was then held as the tram got the signal to go through. The police remained in the area to ensure the protest didn't return and block all the roads again. (Nothing to do with the tram opening, just happened to coincide)
@@Thomas-zs1rc initially the taxis had parked down both sides of Talbot Road but where moved to the left side and in doing so they had looped round Cookson At and Abingdon At causing a blocked triangle so nothing could move. The police then decided to close the road and clear the area completely as it was causing aggravation for other motorists and buses etc. was quite impressive watching how professionally the police dealt with the situation though.