Sometimes, I wonder if they know that it is a paradox but is just using it as an argument to slow development or if they are truly ignorant of what they are saying.They want their cheap parking lots but somehow less traffic too. It's the fundamental paradox at the core of the NIMBY hypocrisy.
The MBTA's track record on all three of those things is bad, bad, and worse in that order. I'd press for a Mass Ave. Subway precisely because setting an unrealistic goal might cause the MBTA to 'compromise' down to the necessary improvements you've listed.I don't see that happening anytime soon. Dedicated bus lanes, signal priority and all-door boarding are more realistic and can get done now, with a little bit of paint, a little bit of electronics, and a little change in policy.
The 66 as well. Plus remove some of the obnoxious route jogs (that's a topic Jarrett has often emphasized).
The 66 already doesn't have any stops on the short jog of Harvard Avenue that would be turned into a one-way street. Nor are there any stops on Linden Street. That's also why I didn't mention bus lanes there - no need for buses running on either of those streets. They'd serve mostly to carry non-bus traffic between Brighton and Cambridge so that we can disallow that turning movement, in conjunction with a Union Square plaza to allow for the buses to turn.The entirety of Brighton Ave is between Packard's Corner and Union Square.
The labeling of it as US-20 is irrelevant, as that continues onto N. Beacon Street which is smaller.
People's treatment of streets is depend on actual physical cues, not street signs. That's why speed limits are routinely flouted. At Packard's Corner, only a single lane of Comm Ave peels off onto Brighton Ave, but then it expands right away to two lanes, just begging people to push the pedal. In the past, there was a streetcar here, so it may have made more sense, but now it is just a racetrack (say, for Herb Chambers customers to test drive his product, as he was one of the big shots pushing for removal of the tracks).
I am currently thinking about ways to reconfigure Brighton Ave to be more appropriate to its context as a very densely populated residential and commercial district. I don't think making Harvard/Linden Ave into a one-way pair is appropriate for that purpose. Generally, one-way streets are unfriendly to local circulation. And splitting up a bus route onto a one-way pair is bad for ridership. And you would have to rebuild Comm Ave (another necessary project) before even considering that.
As for the 66, I was referring to the little jog it takes over to Union Square, which is entirely unnecessary. I can get off the 66 at Brighton Ave and walk over to Cambridge Street to pick it up again, and still beat the bus with a few minutes to spare.
Rerouting it to Everett Street may be a step too far, there's a good amount of riders at the North Harvard and Empire Streets area. Still, something to think about.