Could not find any source for this proposed international bikeway. Not in any official local, regional, state, or national documentation.

This edit improves routing, but does not adhere to local mapping practice with respect to buffered bike facilities. Track is now double mapped on some segments. Will leave for now, as some downstream construction and double tagging must also be resolved, but will update in the future.

The convention in MA has been to include the waterways within the municipal boundaries (see neighboring communities). I believe the MassGIS layer is just for aesthetic use?

Curious about how to best represent this info. The athletic fields are used by Suffolk, but are leased from the airport/MassPort which owns the park outright. Thoughts?

There are no special rules in this area. However this roadway has been redesigned multiple times, and the most recent iteration involved squaring the intersection into its current formation and leaving the original road course as "ramp" of sorts. In local parlance, this ramp is typically still referred to as "turn right" to go towards Kinston. The edit was made to keep with that local parlance, but if that is not enough to justify an exception feel free to adjust it to conform with standard practice!
Cheers,
Ben