Anything more convenient would basically be Riverside.
Exactly. That's the point. Riverside serves park-n-ride commuters well for the Green Line. The Worcester Line is severely lacking in this area (park-n-ride commuters).
The Commuter Rail is <30 minutes to South Station. Taking the Green Line from Riverside Downtown is at best an hour, and not a viable option. Riverside serves those headed to Brookline, Longwood, etc. That is a different group of people.
Those living outside of catchment areas of transit need a park n ride that's accessible from the higway, not clogging city streets to access, and has a fast trip Downtown. That isn't Riverside (not fast), nor is it the Wellesleys or Auburndale (it fails the other two qualifications).
The system should be set up to encourage mass transit use among those commuting Downtown from Weston, northern Waltham, Lexington, Lincoln, Sudbury, and Wayland. Right now, their options are:
- Drive Downtown on the already over-crowded Pike.
- Clog already over-crowded suburban side streets in Wellesley or Auburndale to park at small, overcrowded, expensive parking lots.
- Drive all the way into Alewife and park in an already overcrowded, and now getting rightfully more expensive Alewife garage (after contending with and going out of their way for Route 2 traffic).
- Park at Riverside and take an absurdly long and slow ride into town.
You see how none of these options are good enough, right?
There are obvious solutions. Some are more feasible than others. Taking an expensive, full-build route, you could see the Red Line extended out to 128. You could have a N-S Rail Link and a large 128 park-n-ride on the Fitchburg Line. But, more feasibly, there is an opportunity for a park-n-ride with parking garages and good highway access near 128/Pike on the Worcester Line.
You understand the unserved need that serves, right?