Best non-stop roads in eatern mass?
I'm looking for some roads where there's a minimum of stop signs, lights, pedestrian and car cross-traffic so I can bike at a good speed without having to constantly break and stop.
I've tried the bike path (from cambridge to lexington), but there are a LOT of places where it crosses streets with car traffic and has stop signs (in addition to the congested pedestrian traffic). Is there anything near the greater boston area that has at least a 20-mile stretch with almost no stops?
(Ideally something without broken down, potholed roads, but I know those are in short supply)