Pittsburgh has the worst drivers!!

I'm not even going to go on about how they all forget how to drive in the rain or god forbid the snow!
But this morning I was in two almost accidents on my way to work. All for basic human stupidity.
Frist merging onto the turnpike: You have a long on ramp to help you build up speed as you merge onto the highway. By time you get to the end you should be driving at highway speed. Check!
When the looping ramp and the highway come together you should try to make sure you are in between drivers that are already on the road if not slow down or speed up if need be. Same way if you are driving in the closest lane to the ramp you should be checking for on coming traffic. If someone is merging and you have space to move over you move to the next lane. If you and the oncoming car are going to occupy the space judge if you need to speed up or slow down. (this is usually done by judging to see if you are in front or behind the on coming car).  So today when the lanes came together moving towards the merge point I was in front of the other car but he was right at the back of the van. So what does the person do???? Nothing!! Just keeps pace with me as the merge lane is coming to an end as though I am supposed to slam on my brakes to let him pass me and then blasts me with the horn as he is attempting to run me off the road....Meanwhile. If he just tapped his brakes he would have reduced his speed enough to let the merge happen the way it should. Meanwhile, the next lane over was clear of all traffic making moving over a lane his optimal choice. There was no traffic behind him to which it would be a danger to slow down. There was no where for me to go seeing as there was a car in front and cars coming onto the highway behind me. So essentially I had little options in maneuvering unless I wanted to ram the guy in front or get rammed by the guy behind me. Why do people not know how to use a merge point?

Second one of the ride was getting into pittsburgh which is always like driving in a parking lot with a bunch of drivers ed students. So you're just always a little more cautious. So I needed to move over a lane but traffic is backed up forever as it always is. but there is a truck moving slowly in the right lane...you can tell he's used to driving here because at any moment someone can dart out in front of you. So I wait for the last car to pass and I go to pull out into the lane where as the little sports car behind me does the same thing but at a much faster pace so I slam on the brakes barely missing her and she starts flailing her arms and so I move out and around her and she gets out of her car and circles it looking for damage....I was like we didn't even touch if you're going to try to pull something over on me you got another thing coming. I was pretty sure she was going to try to come B**** me out which I was ready for but apparently she was in much to much of a hurry which is why she almost got smushed in the first place!  Lesson in blind spots! When your car is small and low to the ground I am not going to see you in my mini van until you are halfway along the length of the van. Which is where I finally caught sight of her and put on the brakes. She was just lucky I didn't gun it to merge over, as she did in order to try to get in front of me. What is your rush people? Why don't you look and pay attention to peoples signals.