I've been a city planner and site designer for 30 years. Here's something that every planner or architect can tell you. Frederick Law Olmstead and Calvert Vaux were the founding fathers of American landscape architecture and responsible for the first urban parks in the U.S., notably New York's Central Park, Prospect Park and Eastern Parkway. They developed the term "parkway" in 1866 to describe scenic landscape alongside a road including medians and side strips. So the technical term is parkway and this is the term that has been used for almost 150 years. Only very recently have some other terms been used including lawn strip. In professional circles these are jokingly referred to as "hell strips" because they are very difficult to maintain any lawn. Your particular city, town or development may call it something else and you would need to check with them to see how they define these right-of-ways. More importantly, one shouldn't use a poll to determine facts. One should take the time to research them or consult an expert. In this case, its only important to those laying out the development or anybody involved in a land dispute. Otherwise I've never found anyone sensitive to what it should be called.
