On Park Avenue between St. John and Deering Avenue right now, they're tearing up the parking lane at key intersections to build wide landscaped esplanades. Here's near Hadlock Field:
...and at Deering Avenue, the new curb extensions will create shorter crosswalks between Parkside and King Middle School:
Around the corner on Valley Street, some urban-renewal-era road widening has been rearranged with some nice new landscaped median islands.
Before (in 2011):