What is the primary use of the hard shoulder on a multi-lane carriageway?

The hard shoulder on a multi-lane carriageway is primarily designated for emergency use. It provides a safe space for vehicles that may be experiencing mechanical issues, for emergency services to attend incidents, or for drivers to stop temporarily when necessary and not for regular use.

When a vehicle encounters a problem while traveling on a busy road, pulling onto the hard shoulder allows the driver to remain out of the main flow of traffic, minimizing the risk of accidents. This area is not intended for routine stops or breaks, which could create hazards for other road users.

Using the hard shoulder for anything other than emergency situations, such as gaining speed for overtaking or waiting for roadside assistance, can be dangerous and is generally against traffic regulations. This strict application of using the hard shoulder ensures safety for all motorists and allows emergency services to function effectively when needed.