Having been a professional accident investigator for 19 years there seems to be a ton of factors that caused that woman to collide with the tractor. The pics seem to indicate a time just before dusk. If she relied on her automatic lights to come that is one factor. POP or point of perception is the time in which a driver reacts to a situation. The average reaction time of an average person is @1.5 seconds. Factor that with the speed of the roadway or the speed of vehicle and it doesnt take long to cover a short distance, and from the look of things...she definitely was not as alert as she should have been. From the POI or Point of Impact, he must have been slowing down and getting ready to turn. I would love to get a copy of that investigation to add to my collection for use in training courses. Her skid marks, if she had any would indicate her minimum speed. From the look of the tractor, there was a massive transfer of energy, but without seeing the car that hit the tractor, it is really hard to tell much about her speed or anything along those lines. Its not like a 140 was designed with CRUSH ZONES. I saw someone had posted a very nice umbrella bracket that would also work very nice to hold a pole with a strobe and connect it to the electrical system for road use. Driver inattention is the number one cause for crashes, not matter what vehicles are involved.
If anyone wants to see a great video of how far we have come in vehicle design check this video out.http://www.youtube.com/watch?v=fPF4fBGN ... FA04177140