It should always be the contractors job to make sure the crew and the equipment on the job are safe and protected. This has to be the contractors fault but I bet the pump company will have some liability but I do not believe they should.

Ehhh what about the driver of the car? Maybe he should not drive with his eyes closed? It could have been a child walking there or something..

Come on dipstick you can't text and be ressponsible for hitting a Concrete Pump, lol

I think as a operator you should also make sure that you are setting up in a safe spot.  That pump should not have been set up until the road was coned off.   Operator, car driver and contractor are all at fault. 

I agree ofcourse that he should put up cones! But thats not a good excuse for the car driver to drive so lame  I just hate it how people can be behind the weel and just use only 20% of their brain capacity..

Looks like a rear ender to me! Not a 100% sure, but, where I live the one doing the rear ending is as fault. Even if lead vehicle slams on there brakes. Your charged with following too close or undo care and attention. The police officer was kind enough to let me decide which one of these charges I would like!

I dont see how cones would of prevented this. I doubt that outrigger jumped out in front of the car. If they didn't see that big ass outrigger they wouldnt of seen the cone.

2 lane road so perhaps was overtaking someone

Was probably trying to get in front of that mixer truck. We all know how much they hate being caught behind a big slow truck.

Specialy when its reversing