Transportation Systems is made up of seven different subsectors or modes: There are a lot of things that make up aviation. Aircraft and air traffic control systems are two of them. There are also more than 19,700 airports and landing strips. Almost 500 civilian and joint-use military airports, heliports, and seaplane depots in the United States offer commercial aviation services. As a result, the aviation mode includes both commercial and recreational planes that are both manned and unmanned, as well as a wide range of support services. These include aircraft repair stations, fueling stations, navigation aids, flying schools, and a lot more. If this is something you are interested in you should look at the secrets of the transport museum. In total, there are more than 4 million miles of highway.

There are more than 600,000 bridges, and 350 tunnels in this group. A vehicle is something that moves, like a truck that moves hazardous goods, a commercial motorcoach, or a school bus. It also includes things like driver and vehicle licensing systems, traffic management systems, and cyber systems for operational management. There are over 95,000 miles of coastline, 361 ports, more than 25,000 miles of waterways, and multimodal landside links that allow people and goods to be moved to, from, and on the ocean using different modes of transportation. Terminals, operating systems, and other things that help people get around by bus, trolleybus, monorail, heavy rail, light rail, passenger rail, and vanpool/rideshare are all part of mass transit and passenger rail. In 2014, 10.8 billion people used public transportation and passenger trains. There are more than 2. 5 million miles of pipelines across the country, and they move a lot of natural gas, hazardous liquids, and other chemicals around the country. Compressor stations and pumping stations are examples of assets that are above the ground. Over 138,000 miles of railroad, more than 1.33 million freight vehicles, and about 20,000 locomotives are part of the freight rail system. One thousand trains run every day. DoD has said that 30,000 miles of track and construction are important to the mobilization and resupply of US forces, so they need to be done.

It explains how the National Infrastructure Protection Plan's risk management method is used in light of transportation systems' unique characteristics and risk landscape. Each Sector Risk Management Agency works with partners from both the public and private sectors to come up with a plan for that sector. It was done under Presidential Policy Directive 21 in 2013. In 2013, the Postal and Shipping sector was merged into the Transportation Systems sector. There are two co-sector-specific agencies in the Transportation Systems Sector: the Department of Homeland Security and the Department of Transportation; they work together.

Transportation Systems Sector Activities Progress Report: This report was made by DHS and DOT as Co-Sector Risk Management Agencies (Co-SRMAs), with TSA and USCG acting as executive agents. It shows how these agencies are working together to protect the Transportation Systems Sector. It shows Co-progress SRMA's toward Transportation Systems Sector-Specific Plan (TS SSP) goals and actions in an effort to be more transparent to the people who work in the sector. Aside from actions that required direct interaction from Co-SRMA officials, this report doesn't show how public and private sector groups worked together to make the TS SSP more secure and resilient.