Trucks are the primary mode of transportation for goods in the United States, accounting for over 70% of all freight tonnage.

China has the largest railway network in the world, with over 140,000 kilometers of track.

Hartsfield–Jackson Atlanta International Airport is the busiest airport in the world by passenger traffic, handling over 110 million passengers in 2019.

Shanghai has the most extensive subway system in the world, with over 700 kilometers of track and 400 stations.

The Beijing–Shanghai High-Speed Railway is the world's longest high-speed rail line, connecting Beijing and Shanghai in just 4 hours and 18 minutes.

China has the largest fleet of electric vehicles in the world, with over 5 million electric vehicles on the road.

Waymo is a research center that is developing self-driving cars. It is a subsidiary of Alphabet, the parent company of Google.

Virgin Hyperloop One is a company that is developing a hyperloop transportation system. It is a high-speed transportation system that uses pods that travel through a vacuum tube.

NASA is a research center that is developing a new type of aircraft called the blended wing body. It is a more efficient design that could reduce fuel consumption by up to 20%.

China is investing the most in transportation research and development, with a budget of over $100 billion in 2019.

JR Central is a research center that is developing a new type of train called the maglev train. It is a high-speed train that uses magnetic levitation to float above the track, reducing friction and allowing for speeds of up to 600 kilometers per hour.

China has the most extensive network of high-speed rail lines in the world, with over 30,000 kilometers of track.

Ocean Voyages is a research center that is developing a new type of ship called the solar-powered ship. It is a ship that uses solar panels to generate electricity, which powers the ship's engines.

China has the most extensive network of inland waterways in the world, with over 110,000 kilometers of navigable waterways.

EHang is a research center that is developing a new type of aircraft called the vertical takeoff and landing (VTOL) aircraft. It is a type of aircraft that can take off and land vertically, making it ideal for urban transportation.