The driver began following at a previous roundabout where the 20mph zone begins, clearly sign posted and with a primary school along the way, I held my speed at 20mph until the sign clearly showed the change of speed to 30mph and 20mph zone ending, the driver aggresively beeps at me on approach to a raised zebra crossing directly outside the school where I still held my 20mph speed, he then continues to give hand gestures which are not visible in my mirrors but we're visible to me and made me wonder what the issue was, when I approached him he didn't seem to have any idea what I was talking about and soon piped down. I'm not saying I am a model rider but there was no need for this unprovoked aggression. Peace