Top States for DOT Design Market research indicates that a reliable measure of a state's market potential for A/E/P, Landscape Architecture and environmental design firms is annual vehicle miles traveled. As indicated by the chart below, those states with the most vehicle traffic are also the largest markets for architecture, landscape design and environmental consulting firms, except for Pennsylvania replacing Ohio. Rank Annual Vehicle Miles DOT Disbursements Outsource Design 1 California California Florida 2 Texas New York California 3 Florida Florida New York 4 New York Texas Pennsylvania 5 Ohio Pennsylvania Texas Source: Zweig Market Intelligence Report