SOURCE-LINKED REGULATION GUIDE
UN R157 — Automated lane keeping systems
Review the ALKS function together with transfer of control to the driver.
Explore the scopeWhat does it cover?
UN R157 concerns vehicle type approval in respect of automated lane keeping systems (ALKS). It defines a driver-activated system that controls lateral and longitudinal vehicle movement under specified conditions, and separately defines the process for transferring the dynamic driving task back to the driver. This distinguishes ALKS from simpler warning or assistance functions.
Who is it for?
Automated-driving, vehicle-control and homologation teams.
Which subjects are addressed?
- ALKS definition
- Lateral and longitudinal control
- Vehicle-type characteristics
- Transfer of control to the driver
Common question
Is ALKS just a lane departure warning?
No. The text defines control of lateral and longitudinal movement and transfer of the driving task to the driver. That is a different scope from a warning system.
Source documents and references
Work with this regulation in RegsUP.
Read the text with its edition and sources. Assess available comparisons, relevant dates and question-and-answer features against your work needs.
Discuss access optionsRelated regulations
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