Road transport fundamentals cover the core concepts, vehicle types, cargo definitions, operational metrics, and regulatory frameworks that govern the movement of goods and passengers by road. Road transport is the dominant mode of inland freight in Europe, handling around 80% of freight movements by value and linking factories, distribution centres, ports, and final consumers across a continent with more than 700,000 kilometres of paved road. This module introduces the essential vocabulary, key performance indicators, and professional licensing structure that any practitioner or analyst must understand before engaging with the sector’s economics, operations, or regulation.
Road transport refers to all forms of transportation that take place on roads, alongside other modes such as water (maritime and inland shipping), air (aviation), and rail. It primarily involves cars, vans, lorries, and buses, which share the roads with micromobility vehicles such as bicycles. These modes are often combined within intermodal cargo and passenger journeys, as a road vehicle is typically needed to cover the first and last miles of any trip.
Transportation fulfils the essential need to move people and goods, enabling trade and physical exchange. If transportation is the industry responsible for moving people and cargo, road transport is the subset that covers movements on roads only. Cars and buses are used to move people, while vans and trucks are used to move cargo.
Trucks and buses respond to transport needs, generally expressed by logistics for goods and by individuals for mobility. Logistics is the part of supply chain management that deals with the efficient forward and reverse flow of goods, services, and related information from the point of origin to the point of consumption, in line with customer needs. Supply chain management covers the full system of procurement (purchasing raw materials and components), operations management, logistics, and marketing channels through which raw materials can be developed into finished products and delivered to end customers.
A truck, also referred to as a lorry in British English or a medium or heavy goods vehicle (MGV or HGV), is a motor vehicle designed primarily to transport cargo on public roads. Trucks are distinguished from cars and vans by their size and weight, typically exceeding 6 metres in length and 3.5 tonnes of gross vehicle weight. Above that threshold, European regulations impose a separate and more demanding set of technical and licensing requirements.
In road freight, the truck is the fundamental unit of production. The most common configuration combines a tractor unit, the powered vehicle, with a semi-trailer, the detachable enclosure that carries the load. This combination is referred to as an articulated vehicle, sometimes called an artic. Articulated vehicles share the roads with rigid trucks, in which the cab, engine, and load area are built on a single chassis that cannot be separated. Rigid trucks can also be coupled with a trailer to form a road train. The difference between a trailer and a semi-trailer lies in weight distribution: a trailer is designed to carry its entire load on its own wheels, whereas a semi-trailer shares its load with the tractor unit.
Trucks are classified primarily by weight. In this module, weight and mass are treated as synonymous.
Several weight characteristics are commonly referenced in truck specifications.
The kerb weight, or empty mass, is the weight of the vehicle without any load. Depending on the convention used, this figure may or may not include fuel.
The gross vehicle weight (GVW) is the maximum permitted total weight of the vehicle, including its load. This limit is set either by the manufacturer as a technical ceiling or by regulation as a legal one.
The gross combined weight (GCW) is the equivalent figure for a tractor plus its trailer or semi-trailer. GCW is generally lower than the arithmetic sum of the tractor GVW and the semi-trailer GVW, which provides loading flexibility. With careful load placement, an articulated vehicle can reach the tractor's GVW without reaching the semi-trailer's GVW by concentrating heavier goods towards the front of the semi-trailer.
The payload is the weight of the goods loaded into the vehicle. The maximum payload, or load capacity, is the highest payload that can be carried before reaching the GVW or GCW.
The load factor is the ratio of actual payload to maximum payload, and measures how fully each journey is utilised.
The payload over kerb weight (POK) is the ratio of maximum payload to kerb weight for a single vehicle or a vehicle combination. It measures loading efficiency. Compared with vans, trucks typically have a POK greater than one, meaning they carry more weight than they weigh, which makes them energy efficient per unit of goods moved.