Transport

We move people and things from place to place.

This is called transport. We use many ways to move.

Some people walk or run. This uses the power of our muscles.

We can also use animals to carry heavy loads.

Cars and buses drive on roads. Trains run on metal tracks.

These help us visit new lands.

Planes fly high in the sky. They can move things very fast.

Boats travel on the water.

Moving things helps us trade. It helps our world grow.

How do you move around?

Transport is how we move people and goods.

It helps us trade with other places. This helps our world grow.

We can use our own bodies to move. This is called human-powered transport. You might walk, run, or swim. You can also use bikes or wheelchairs.

Animals can help too. People ride animals or use them to pull heavy loads. This is useful in rough places.

Many things move on land. Cars and buses use roads.

Trains run on tracks called rails. A locomotive is a machine that pulls train cars.

Some trains are very fast. They can reach 350 km/h.

We also move through the air and water. Planes use wings to fly.

They are very fast. Some planes are drones. These are unmanned aerial vehicles. This means they fly without a person inside. Boats and ships move on water. They use hulls to stay afloat.

Some ships use big engines. Others use the wind to move.

Transport is the way we move people, animals, and goods from one place to another.

This movement is very important for human trade. Trade helps civilizations grow and develop over time.

Transport is split into three main parts. These are infrastructure, vehicles, and operations. Infrastructure includes fixed things like roads, rails, and pipelines. Terminals like airports and seaports help move people and cargo. They also help with maintenance and refueling.

There are many different ways to move things. People choose a mode based on cost and the route. A mode uses a specific vehicle and infrastructure together. Sometimes, a trip uses more than one mode. This is called inter-modal or multi-modal transport. Some transport uses human muscle power. This includes walking, running, or swimming.

You can also use bicycles or wheelchairs to move more easily. Animals can also help by pulling sleds or carrying packs. This is very useful in rough places where machines cannot go.

Moving through the air is very fast.

Fixed-wing aircraft, or airplanes, use air moving over wings to create lift. This lift helps them stay in the sky. Some planes are unmanned aerial vehicles, also called drones. These can be small or as large as a full airplane.

Rockets are actually the fastest way to travel. Commercial jets can reach speeds of 955 kilometres per hour. Other aircraft, called aerostats, use light gases to float. Balloons and blimps are types of aerostats. They use gases like helium to stay up.

Land transport is another huge part of our world.

It includes both road and rail systems. Roads allow for great flexibility for drivers. You can change lanes or directions very easily. As of 2015, there were 950 million passenger cars in the world.

Rail transport uses vehicles on tracks called rails. A locomotive is the machine that pulls the train cars.

Trains are often more energy efficient than cars. Some high-speed trains can travel at 350 km/h. In Shanghai, a maglev train can even reach 460 km/h.

Water transport uses watercraft to move over oceans and rivers.

A ship needs a hull to stay afloat. This part of the ship provides buoyancy. In the 19th century, people used steam engines to move ships. These engines used boilers fueled by wood or coal.

Today, most big ships use internal combustion engines. Some special ships even use nuclear power. You might also see boats using wind or oars. This is how people have moved across water for a long time.

Transport is the intentional movement of people, animals, and goods from one location to another.

This process is vital because it enables human trade. Trade is a key driver for the development of civilizations. To understand how the world moves, we can divide transport into three main areas: infrastructure, vehicles, and operations. Infrastructure includes fixed installations like roads, railways, and pipelines. Terminals, such as airports and seaports, serve as hubs for exchanging passengers and cargo. They also provide essential spaces for maintenance and refueling.

A mode of transport is a specific solution using a certain vehicle, infrastructure, and operation. Travelers often choose a mode based on cost, capability, and the specific route. Sometimes, a journey requires more than one mode of transport. This is known as inter-modal or multi-modal transport. Governments often regulate these systems through financing, legalities, and specific policies. Ownership can be public, private, or a partnership between the two. For example, a city might have government-owned urban transport alongside privately owned cars.

Human-powered transport relies on human muscle power. This includes activities like walking, running, and swimming. It is considered a sustainable form of transport. While humans can walk without much infrastructure, roads and sidewalks improve accessibility. This is especially true when using human-powered vehicles like bicycles or wheelchairs.

Technology has also created hybrid vehicles. Personal transporters are a 21st-century example of hybrid human-electric powered vehicles. Animal-powered transport is another historical method. Humans use working animals to ride, to act as pack animals, or to pull wheeled vehicles. This remains useful in rough terrain where automotive transport cannot reach.

Air transport offers incredible speed.

Fixed-wing aircraft, or airplanes, use air moving over their wings to generate lift. This is different from rotary-wing aircraft, which use moving lift surfaces to create lift. Aircraft require an airport for refueling and loading. Some aerostats, or lighter-than-air aircraft, use different principles. They gain lift by containing gas that is less dense than the atmosphere. This includes balloons and airships, such as blimps. These often use helium or heated air to stay aloft.

Air travel is the second fastest method of transport, following the rocket.

Commercial jets can reach speeds of up to 955 kilometres per hour. Single-engine aircraft are slower, reaching about 555 kilometres per hour. Aviation allows for the quick movement of people and limited cargo. However, it also involves high costs and high energy use. As of April 28, 2009, the WHO estimated that up to 500,000 people were on planes at any given time. Modern technology has also introduced unmanned aerial vehicles, known as drones. These can carry payloads for tasks like package delivery.

Land transport is divided into rail and road systems.

Rail transport uses wheeled vehicles running on tracks. These tracks consist of parallel steel rails anchored to ties made of timber, concrete, or steel. The distance between the rails is called the gauge. A locomotive provides the propulsion to haul unpowered cars, known as rolling stock.

Rail is often more energy efficient than road transport because it has less friction. High-speed rail can reach 350 km/h. In Shanghai, commercial maglev transport can reach 460 km/h. Freight has also shifted toward containerization since the 1980s.

Road transport provides high flexibility for users.

Drivers can change lanes, directions, and speeds according to their needs. This allows for efficient door-to-door service. However, road systems consume large amounts of land and can cause urban congestion. They are also a major source of noise and air pollution. As of 2015, there were 950 million passenger cars worldwide. This number is projected to reach 2.5 billion by 2050. While automobiles offer low capacity, buses provide a more efficient way to move many people.

Water transport involves moving across bodies of water using watercraft.

This includes boats, ships, and barges. A critical part of a watercraft is the hull, which provides buoyancy. In the 19th century, steam ships used boilers and external combustion engines. Today, most commercial ships use internal combustion engines fueled by bunker fuel. Some specialized vessels, like submarines, use nuclear marine propulsion. This uses heat from a nuclear reactor to generate steam. Other craft still rely on traditional methods like wind or oars.