A passenger is a person on a trip.
A passenger is a person on a trip. 
A passenger is a person who travels in a vehicle. 
Laws help keep passengers safe. Many cars have air bags to protect people. A vehicle has a seating capacity. This is the number of people it can legally carry.
In the travel industry, people use special terms. A revenue passenger is someone who pays for their trip. This does not include babies without their own seats. Companies use math to study these trips. They look at revenue passenger kilometers. This is a way to measure how far people travel. Sometimes, a vehicle has no passengers at all. This is called a "no pax" trip. A bus might say "no pax" when it is out of service.
A passenger is a person who travels in a vehicle. 
Laws help keep people safe during their trips. Most places have rules for vehicle owners and drivers. Drivers often have a duty of care to their passengers. This means they must act safely to protect them. Some laws even limit how passengers can sue a driver after an accident.
Travel companies use special terms to talk about trips. A revenue passenger is someone who pays for their travel. This does not include people traveling for free. For example, airline employees on free passes are not revenue passengers. Babies or children without their own seats are also not included. 
Math helps companies measure how much work they do. They use terms like revenue passenger kilometers (RPK). They also use revenue passenger miles (RPM). 
Sometimes, a vehicle travels without any people at all. This is called a "no pax" trip. A bus might show a "no pax" sign at the start of a shift. This means it is out of service. This also happens when a plane is just moving cargo. In Britain, trains are also sorted into different groups. Express trains go between big cities at high speeds. Semi-fast trains stop at some busy places. Local trains stop at every station for the people living nearby.
A passenger is a person who travels inside a vehicle. 
Many different types of vehicles can carry passengers. These include common items like bicycles, buses, and cars. People also travel as passengers on passenger trains, airliners, and large ships. Other vehicles include ferryboats, personal watercraft, and all-terrain vehicles. Even snowmobiles can carry passengers. The legal limit for how many people can ride in a vehicle is known as its seating capacity. This number tells operators the maximum amount of people allowed for a trip.
Laws exist in most places to protect people during their travels. These laws dictate the legal obligations of a vehicle owner or a driver. A driver often owes a duty of care to their passengers. This duty is especially important if the passenger provides a benefit to the driver. This benefit might be more than just company or sharing travel costs. In some specific legal situations, guest statutes may limit a passenger's ability to sue a driver after an accident. To keep people safe, many regions require cars to have passenger-side air bags.
In the transportation industry, experts use specific terms to categorize travelers. A revenue passenger is someone who has paid a transport operator for their trip. This category excludes people traveling for free, such as airline employees on special passes. It also excludes babies or children who do not have their own seat. However, passengers using frequent-flyer mileage awards are usually counted as revenue passengers. This distinction helps companies track their business through specific traffic measures. These measures help them understand their income and their costs.
Companies use math to measure their production and efficiency. They use terms called revenue passenger kilometers (RPK) and revenue passenger miles (RPM). 
Sometimes, a vehicle travels without any passengers at all. This is called a "no pax" trip. You might see a "no pax" or "out of service" sign on a public transit bus. This often happens when a bus is traveling to or from a terminal at the start or end of a shift. For airplanes, a no-pax flight might be a flight used for air cargo or positioning. This means the plane is moving to a new location without carrying paying customers.
In the United Kingdom, the term passenger is also used to categorize types of railway rolling stock. There are three main categories of British passenger trains. The first is the express passenger train. These provide high-speed, long-distance travel between major locations like cities and ports. The second is the semi-fast express passenger service. These are also high-speed but stop at selected destinations where many people live. The third is the local passenger train. This is the lowest category and provides service by stopping at all stations between major destinations. 
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