No // Closing off portions of Superior Avenue and Ontario Street when the Horseshoe Casino Cleveland is soon set to bring an estimated 5 million people annually to the southwest corner of Public Square raises some viability questions for landscape architect James Corner. In 2009, his New York-based firm, Field Operations, submitted a design to the Downtown Cleveland Alliance and ParkWorks that avoided the potential traffic roadblock. It included an artificial hill that arched over the intersection, which allowed roads to remain open while connecting the square's four corners in a pedestrian-friendly way. He says the design also offered adaptability if it was ultimately determined the roads through Public Square could be closed, which Corner says wasn't an option two years ago. He adds that the design also gives Cleveland a civic hub that's functional and original. "In some ways the hill is iconic," says Corner, who also designed Manhattan's High Line park. "Not only would it be a centerpiece, but also a gateway."