A toll road (also called a turnpike, toll highway, or express toll route) is a road for which vehicles must pay a fee to use, called a "toll". Toll roads are there in part to control the number of people using it. They may be built to allow some users to travel faster and avoid traffic congestion, speeding up traffic. In the past, tolls were collected to give income to governments or landowners. Today, tolls can be considered a form of tax which pays for the cost of road construction and maintenance that are not charged on those who do not use that road.