My question involves a speeding ticket from the State of: California

Hello,
I am new to this forum. I just recieved an answer to my TBWD in the mail and was found guilty on VC22350. The police officer used radar to calculate my speed-57 in 40 mph zone. I have a few questions.
1. Can I still request traffic school if I ask for a trial de novo?
2. If the officer doesn't show, I know I can ask for my case to be dismissed. But, if he does show, I need to be prepared with my defense, right?
3. Since the officer was using radar, I am wondering if there is a speed survey for the stretch of road he got me on. Where do I go to get that? What if there is no speed survey?
4. I am planning to go to the court house to turn in my request for trial de novo. While I am there, can I request to see the officer's written declaration and notes? I am assuming I just need to ask the clerk who is helping me?

judymko