Massachusetts is not adding any new roadways and hasn't for more than 40 years. The last time a new interstate was built was in the early 1980's when I-190 (Leominster to Worcester) was completed and the remaining spur of I-495 to the cape was completed.

The only roadway changes that have been made since then were modifications of existing roadways with capacity changes for safety or evacuation route purposes - like the big dig.