Hmmm now that Storrow-Memorial idea is interesting. Not sure how well it would actually work in practice, but we need bold ideas like that to pick apart. Youd have to make more and better connections between the two that arent a cluster fck, but its probably do-able. Idk if thats the best option out there but its a great conversation to have. Drastic ideas like this can lead to the changes we need.
Edit- thats true about memorial being more of a parkway with many stop lights. That wouldnt make it a 1 for 1 swap at all. Good point.
One thing I do like in the render above and something we do need is an exit when heading west bound on the pike. Your trapped once your on it and your not able to use the pike as a means to get to parts of the city west of where you are. This is something that definitely needs to be addressed.
The part with the on ramp in the back bay I dont see being necessary. If anything Id want an off ramp there to put you west of the back bay. I dont think people really need to get on the pike there to go east, but people could definitely use an off ramp to get off the pike before the back bay.