The Transport & storage industry includes businesses primarily engaged in the provision of passenger and freight transport and associated services. This industry includes most forms of road, air, sea and rail transport; services to transport such as stevedoring, airport operations and travel agencies; pipeline transport; grain storage and general warehousing services. The contribution of the Transport & storage industry to total GDP has been relatively constant at around 5%. Value added growth in the Transport & storage sector was 3.7% per year between 1985-86 and 2005-06, and has generally followed a similar pattern to GDP growth.