I use to live in "Boston" live in da burbs now.... it's a combination of people being in a hurry, horrible roads & setup, and lack of intelligence..... cant wait for them to ban talkin on a cell phone here... roads are constantly changing & under construction so even those familiar get caught off guard with changes.... one thing about MA drivers... I swear you will not find more rude drivers anywhere who dont allow you to merge when 2 lanes converge.