PCV Safe Vehicle Loading 2 — Questions and Answers

Question 1: What is the maximum permitted weight for a fully laden double-decker bus in the UK?

16,260 kg
18,000 kg (Correct answer)
19,500 kg
21,000 kg

Correct answer: 18,000 kg

The maximum permitted weight for a fully laden double-decker bus in the UK is 18,000 kg (18 tonnes). This is set by Construction and Use regulations and must not be exceeded to ensure safe braking and road surface protection.

Under UK regulations, the maximum gross vehicle weight for a two-axle double-decker bus is 18,000 kg. Exceeding this limit compromises braking distances, tyre performance, and structural integrity of roads and bridges. Drivers must be aware of passenger numbers and any luggage weight to ensure the vehicle remains within legal limits. Overloading offences carry significant fines and can result in the vehicle being prohibited from continuing its journey.

Question 2: When loading luggage into a coach's luggage compartment, what should you check first?

That the luggage is waterproof
That the compartment weight limit is not exceeded (Correct answer)
That all luggage is the same size
That luggage tags are attached

Correct answer: That the compartment weight limit is not exceeded

Before loading luggage into a coach's luggage compartment, you must check that the compartment weight limit is not exceeded. Overloading individual compartments can affect the vehicle's stability and handling.

Each luggage compartment on a coach has a maximum weight capacity specified by the manufacturer. Overloading one side or one compartment can cause the vehicle to lean, affecting steering response and increasing the risk of rollover on bends. Drivers should distribute weight evenly across all available compartments and refuse excess luggage if it would push the vehicle over its gross weight limit.

Question 3: How should heavy items be positioned when loading a PCV?

On the upper deck only
As high as possible for visibility
Low down and near the centre of the vehicle (Correct answer)
At the rear of the vehicle only

Correct answer: Low down and near the centre of the vehicle

Heavy items should be positioned low down and near the centre of the vehicle. This keeps the centre of gravity low, improving stability and reducing the risk of the vehicle rolling over.

A low centre of gravity is essential for safe vehicle handling, particularly for tall vehicles like buses and coaches. Placing heavy items as low as possible and centrally distributed prevents the vehicle from becoming top-heavy. A top-heavy vehicle is more likely to roll over during cornering, emergency manoeuvres, or when travelling on cambered roads. This principle applies to both luggage compartment loading and any cargo carried on the vehicle.

Question 4: What documentation must a PCV driver have access to regarding the vehicle's weight limits?

The vehicle's insurance certificate only
The driver's CPC card
The vehicle's plate showing maximum weights (Correct answer)
The MOT certificate

Correct answer: The vehicle's plate showing maximum weights

A PCV must display a plate showing its maximum weights, including gross vehicle weight and individual axle weights. The driver must be familiar with these limits and ensure they are not exceeded.

Every PCV must carry a Ministry plate (also known as a VTG6 or VTG7 plate) that shows the maximum gross vehicle weight, maximum train weight (if applicable), and maximum weight for each axle. This plate is usually found in the engine compartment or near the driver's seat. Drivers are legally responsible for ensuring the vehicle does not exceed these stated limits. During roadside checks, DVSA enforcement officers will check actual weights against the plate values.

Question 5: You are driving a coach and notice the vehicle is pulling to one side. What could this indicate about the loading?

The tyres need replacing
The load is unevenly distributed (Correct answer)
The engine needs servicing
The steering fluid is low

Correct answer: The load is unevenly distributed

A vehicle pulling to one side often indicates that the load is unevenly distributed. When more weight is on one side than the other, it causes the vehicle to drift in that direction.

Uneven load distribution puts more weight on the tyres and suspension on one side of the vehicle, causing it to pull in that direction. This is particularly dangerous at higher speeds, during braking, and in wet conditions. If you notice the vehicle pulling to one side, you should stop as soon as it is safe to do so and redistribute the load evenly. Continuing to drive with an uneven load increases tyre wear, reduces braking efficiency, and can cause loss of control.

Question 6: What is the main risk of carrying standing passengers on the upper deck of a double-decker bus?

Increased fuel consumption
Blocked emergency exits
Raised centre of gravity increasing rollover risk (Correct answer)
Reduced driver visibility

Correct answer: Raised centre of gravity increasing rollover risk

Standing passengers on the upper deck significantly raise the centre of gravity of the vehicle, greatly increasing the risk of rollover, especially during cornering or emergency braking.

Standing passengers on the upper deck of a double-decker bus is prohibited under UK regulations for exactly this reason. The additional unrestrained weight at the highest point of the vehicle dramatically raises its centre of gravity. This makes the vehicle unstable during cornering, sudden lane changes, or emergency stops. Even on single-decker vehicles, standing passengers should hold onto handrails. The number of permitted standing passengers is limited and shown on the vehicle's PSV licence disc.

PCV Safe Vehicle Loading 2

What is the maximum permitted weight for a fully laden double-decker bus in the UK?