Automated lane keeping systems

Automated lane keeping systems (ALKS), also described as traffic jam chauffeurs, is an autonomous driving system that doesn't require driver supervision on motorways. ALKS is an international standard set out in UN-ECE regulation 157 and amounts to Level 3 vehicle automation. It is essentially a more robust combination of adaptive cruise control (ACC) and lane centering assist (LCA). When activated, it allows the driver to do non-driving tasks until alerted otherwise.

In 2021, Mercedes-Benz has received German approval for an ALKS self-driving technology complying with UN-R157 legal requirements.

Mercedes-Benz says that customers will be able to buy an S-Class with the Drive Pilot technology in the first half of 2022, enabling them to drive in conditionally automated mode at speeds of up to 60 km/h (37mph) in heavy traffic or congested situations on suitable stretches of motorway in Germany.

The regulation was signed by 54 states on 22 January 2021.

Entry into force in the European Union is 22 January 2022 for cars.

Entry into force is planned for June 2022 for heavy vehicles.

Initially, the regulation allows for automated driving up to 60 km/h (35 mph). An amendment for an increased speed for automated driving up to 130 km/h (80 mph) is planned to enter into force from January 2023.

In all contracting countries, the date of entry into force of UNECE regulation 157 is 22 January 2021.