| Statistics on the US transportation systems (air, water, highway, rail, etc.) Commercial fleet statistics profile by size, type, state, number of registrations, etc. Economic transportation indicators in the United States. US public mass transportation financial and operating data. Federal, state and local highway data and statistics. Data on waterborne commerce, vessels, locks, port facilities, and dredging. |
| Statistics on the US transportation systems (air, water, highway, rail, etc.) Economic transportation indicators in the United States. US public mass transportation financial and operating data. Federal, state and local highway data and statistics. Data on waterborne commerce, vessels, locks, port facilities, and dredging. Commercial fleet statistics profile by size, type, state, number of registrations, etc. |
| Statistics on the US transportation systems (air, water, highway, rail, etc.) Commercial fleet statistics profile by size, type, state, number of registrations, etc. Economic transportation indicators in the United States. US public mass transportation financial and operating data. Federal, state and local highway data and statistics. Data on waterborne commerce, vessels, locks, port facilities, and dredging. |
| Statistics on the US transportation systems (air, water, highway, rail, etc.) Commercial fleet statistics profile by size, type, state, number of registrations, etc. Economic transportation indicators in the United States. US public mass transportation financial and operating data. Federal, state and local highway data and statistics. Data on waterborne commerce, vessels, locks, port facilities, and dredging. |
| Impacts of energy consumption, energy security, greenhouse gas emissions. Energy efficiency and use in freight and passenger transportation. |
| Statistics on the US transportation systems (air, water, highway, rail, etc.) Commercial fleet statistics profile by size, type, state, number of registrations, etc. Economic transportation indicators in the United States. US public mass transportation financial and operating data. Federal, state and local highway data and statistics. Data on waterborne commerce, vessels, locks, port facilities, and dredging. |