Janette Sadik-Khan, New York City Transportation Commissioner An urban visionary who cuts through the gridlock. By Will Oremus Janette Sadik-Khan Before Janette Sadik-Khan came along, the job of the New York City transportation commissioner was pretty straightforward: Keep the traffic moving. * In her four-year tenure, Sadik-Khan has transformed the position. She is transportation commissioner as real estate developer, urban beautifier, bicycle advocate, and environmentalist. In the process, Sadik-Khan—"JSK" to those who revere her—has begun to drag the city's transportation infrastructure into the new century. When Mayor Michael Bloomberg named Sadik-Khan in April 2007, Broadway was still a vehicular thoroughfare, Bronx to the Battery. Now it is a pedestrian mall in the heart of midtown, forcing cars to detour. Whether this makes traffic run more smoothly is a matter of debate. That it has made money for Times Square merchants, however, is widely agreed. In a Slat...