This term is part of the following categories: safety, technology, sensors, vehicle system and activity/process.
Version 5.0, release April 2023
Definition: hardware and software for motorway application activated by a human driver within its operational design domain for a travelling speed of up to 130kph by controlling the lateral and longitudinal movements of the vehicle for extended periods without the need for further driver input.
Note 1: definition adapted from UN Regulation No. 157 Uniform provisions concerning the approval of vehicles with regard to Automated Lane Keeping Systems (2022).
Note 2: ALKS up to 60kph keeps the vehicle within its lane of travel, whereas ALKS up to 130kph must be equipped with lane-change capability.
Note 3: vehicles using ALKS are still subject to speed limits according to vehicle class and road type (e.g. the UK speed limit for cars, motorcycles, car-derived vans and dual-purpose vehicles on motorways is 70mph / 112kph)
Previous versions:
Version 4.0, release March 2022
Definition: Hardware and software for low-speed application which is activated by the driver and which keeps the vehicle within its lane for travelling speed of 60 kph or less by controlling the lateral and longitudinal movements of the vehicle for extended periods without the need for further driver input.
[Source: UNECE/TRANS/WP.29/2020/81, 2020]
Version: 3.0, release: October 2020
Definition: hardware and software for low-speed application which is activated by the driver and which keeps the vehicle within its lane for travelling speed of 60kph or less by controlling the lateral and longitudinal movements of the vehicle for extended periods without the need for further driver input.
[Source: UNECE/TRANS/WP.29/2020/81 2020]
