This sector is comprised of 7 sub-sectors ranging from Aviation, to pipelines, to freight. Transportation makes economic activity possible by enabling the production of goods and services—for instance, in carrying the raw materials needed to manufacture goods. Transportation also serves as a major economic activity itself. Households, businesses, and the government directly consume transportation goods (e.g., vehicles and motor fuel) and services (e.g., public transit and commercial airline transportation) to meet their travel needs. (4)