The NYC Department of Transportation (DOT) is a city agency responsible for managing the transportation system in New York City. Its main duties include maintaining roads, bridges, and tunnels, as well as overseeing traffic signals and street signs. The DOT also promotes safe and efficient travel for pedestrians, cyclists, and motorists. In addition to infrastructure maintenance, the DOT implements policies to improve public transportation and reduce congestion. The agency works on projects that enhance accessibility and sustainability, such as expanding bike lanes and improving bus services. Overall, the DOT plays a crucial role in ensuring the city's transportation network functions smoothly.