PNG images: Transport Clipart Collection
Passenger transport may be public, where operators provide scheduled services, or private. Freight transport has become focused on containerization, although bulk transports used for large volumes of durable items. Transport plays an important part in economic growth and globalization, but most types cause air pollution and use large amounts of land. While it is heavily subsidized by governments, good planning of transport is essential to make traffic flow and restrain urban sprawl.