The hospital serves a low-income population at a rate of 2,000 patients per day. The challenge was to provide patient comfort and to avoid crowded and unsanitary conditions through. the generous use of space, ample light and ventilation in reinforced concrete buildings interspersed with open spaces. The taller structures step back to provide light and air, reducing energy costs. At ground level, louvered corridors provide the same. . The choice of finishes, exposed concrete and granite, contribute to the reduction in maintenance costs, an important consideration.