Pittsburgh Main Thoroughfares and the Down Town District

"Pittsburgh Main Thoroughfares" is a report by Frederick Law Olmsted. The TOCs include The Main Arteries, Eastward Arteries and Their Improvement, A New Traffic Center, Sixth Avenue, Try Street Grade Crossing, Second Avenue Freight Yards, The Hump Cut, Grant Boulevard Extension, A Civic Center, Diamond Street Widening, Market Street Widening, The Market, The Water Front, etc.