Walcavage has been involved in the planning and design of landscapes and public spaces in the New York City area for decades. With specific focus on dense urban areas, she specializes in streetscapes, urban waterfront redevelopment, bikeway and pedestrian facilities as well as public parks and greenways. Walcavage has worked with New York City and New York State agencies on various projects, including design of a new plaza at Myrtle Avenue in Brooklyn, the Stuyvesant Cove waterfront in Manhattan, and the conversion of two lanes of traffic and unused median into a linear park and bikeway for the Lower East Side.