Edwards, RobynThere is a growing interest in evidence-based design in landscape architecture. This is an exploratory study of the choice experiment method: an economic approach used by many other disciplines but not yet landscape architecture, to collect empirical evidence on the public's preferences for different landscape design characteristics. A choice experiment was conducted for an open space development in downtown Baltimore. The outcomes of the experiment provided a basis for the design of a downtown surface parking lot into a public open space. Design decisions were made with better clarity and confidence that the design solution could maximize utility and value to the public.enThesisLandscape architecturechoice experimentdesign decisionsevidence-based designpublic participation