Congestion pricing is a transportation policy that involves charging drivers for using certain roads or zones during peak traffic periods. The idea behind this concept is to reduce traffic congestion by making it more expensive to drive in busy areas, thereby encouraging people to use alternative modes of transportation such as public transit, carpooling, biking, or walking instead. This can help to alleviate traffic jams and improve the overall flow of vehicles on the road. The revenue generated from congestion pricing can also be used to fund improvements in infrastructure, public transit, or other transportation-related initiatives.