So I just got into my first accident yesterday morning rush hour.  I just need some input of the fine and also hope forumers won't get into the situation I was in as it could have turned out very very bad.  It was a car vs bike and I was the driver.  Thankfully he did not sustain major injuries, only sprained his hand.

Now I have no problems with liability on me.  However the police is booking me for careless driving $150 + 1 warning?  I have drawn up what happened below.

I was on the median waiting to turn into the driveway on a 60km/h road.  It was rush hour and both lanes left a gap for me to go through.  So I proceed with my turning at a reasonable speed making sure I was clear.  Next moment a bike is coming from the left of the van and slams into my rear left passenger door.  There was no way I could see him due to the van and school buses behind it except if I was directly 90 degrees to the bike.  There were no skid marks as the bike did not see my car either.

Now my problem is, I'm getting done for 'careless' driving but I can honestly say it was an unavoidable accident.  I don't know what you guys think and I need some input.  Should I just accept the fine?  He said the motorcyclist is going at normal speed and I questioned him the fact if travelling at 'normal speed' is reasonable speed in a traffic jam.  The witness in the van said to the ambulance crew that there was a bus behind him and the driver (me) wasn't able to see the bike.  The ambulance crew member told me not to worry as he is fine and just verbally assured me that I did not do anything wrong.  This was before the cops arrived.  

Either way the cop told me this fine was the best outcome for me, even though he knows I would not have been able to see the bike that I still failed to give way.  

Just need some input if I should accept the fine or not.