Right, and the point is not an individual one. It is not to criticize you for choosing a less geometrically efficient mode of transportation and contributing to traffic.
The point is to acknowledge that you have a system that incentivizes you to choose an inferior (systemically) mode of transportation due to time/cost/convenience. Then, to build a system in which you are incentivized (through time/cost/convenience) to choose a more geometrically efficient mode of transportation. Once people are choosing more geometrically efficient modes (switching from driving alone to carpool/bike/walk/mass transit), we can move far more people in a far denser area, more smoothly and quickly, due to the geometric efficiency.
If we keep catering to geometrically inefficient modes (driving alone), we are left with geometric inefficiency (traffic). If we want more geometric efficiency (smooth, fast movement through a densely populated area), we need to build infrastructure for geometrically efficient modes of transportation (HOV, biking, walking, mass transit, etc), such that they have an advantage on cost/time/convenience.
My case (and, actually, for 3 of my coworkers who live in the same town):
our commute is more of a north-south route and would require using transit which heavily favors the hub-and-spoke system. To commute 5 miles it takes me:
1hr by public transit. This can be shortened to 45 minutes if I take the express bus, which runs every 40 minutes and doesn't run on the weekends.
15min by car with no traffic; 25min on average; 40min with heavy traffic
25min door-to-door by bike
I've been choosing bike as much as I can, but there's just no situation in which I will choose public transit. I'm sure many people in my situation feel the same.
The problem with telling many folks to take a bus instead of driving, is that as bad as driving is (now as bad as pre-Big Dig) it's still far better than taking public transit for most folks outside of Boston (and let's face it, much of Boston itself south of the core is pretty suburban as well). And for some of the same reasons that car pooling doesn't work for most people - you need to live and work at the same place for it to make sense.
I don't have a feasible/ realistic solution, but I certainly think we need to think way outside the bounds of Boston.
Currently:
~1.3m living outside of Boston, but inside the circumferential highway
~646K living in Boston
Much of our daily traffic comes from well beyond 128/95 - a good % from out of state.
I agree. I feel like Boston isn't dense enough to support everyone who would want to live there and rely on the T (forget the sky-high property valuations that very few can afford). I don't have a feasible solution either, but we have to realize that these days we have many people coming from the outside to the almost-downtown. Take Waltham for example and the office park space buildout explosion there. What public transit can possibly serve people commuting from just outside of 95 or north/south of Waltham? We're incentivizing more driving and dumping more traffic on 95. An 18-min-drive for me would turn into a 1.5hr commute involving either 2 buses + commuter rail or 3 buses.