The Department of Transportation (DOT) is a government agency responsible for overseeing the nation's transportation systems. This includes everything from roads and bridges to public transit and air travel. The DOT works to ensure that these systems are safe, efficient, and accessible for everyone. It also develops policies and regulations to improve transportation infrastructure and reduce traffic congestion. In addition to managing transportation, the DOT plays a key role in funding projects that enhance travel safety and promote environmental sustainability. By collaborating with state and local governments, the DOT helps to create better transportation options for communities, making it easier for people to get to work, school, and other important places.