Thanks for the replies. To answer some of the questions, I was just riding along the left side of a one-way street; the school bus turned from a one-way avenue (Madison avenue) onto the street. The pedestrian's walk signal that I was looking at was probably on the left since I was on the left of the street. I get the consensus is that I should just be very careful regardless if the driver had fault, which I totally agree (I post about it here just to hear some discussion). I do need to change the habit of watching only the pedestrian's count-down signal without looking at the traffic light.