URBAN PLANNING
'(<a href="http://www.j-archive.com/media/2009-01-29_DJ_25.jpg" target="_blank">Kelly of the Clue Crew shows a plot design, and green space appears along the road curves.</a>)  In suburban planning, additional green space created by curved streets & houses with varying setbacks is called this 4-letter word, also a small, sheltered bay'
a cove