I was stopped at a T-section, waiting to turn left on to the top of the 'T'. I had to wait for two cars coming one way at the top of the 'T' and, one car coming the other direction, at the top of 'T'. After those three cars went by, I started turning onto the top of the 'T'. As I was doing that, an idiot in a former U.S. Postal Service van came zooming up the hill. I was wearing my helmet, along with my reflective green windbreaker and, I have flashing lights on my bike and, despite all that, the idiot nearly hit me!!!!!