Louisiana-hired architects unveiled their latest conceptual designs for a proposed $1.2 billion academic medical center in New Orleans and drew criticism because their plan envisions six city blocks of parking between downtown and the new hospital. Even supporters of the hospital project questioned the wisdom of turning half of a 35-acre footprint into a landscaped parking lot that would effectively split the city's medical corridor, cutting off the new hospital and the planned adjacent Veterans Affairs hospital from Tulane Medical Center.