UNECE ADAS Task Force
This task force has now submitted informal documents to the GRVA ready for the meeting that starts on 19 January.
Here is the informal document which supercedes the formal document submitted back in October and describes the 02 series of amendments to the DCAS UNR
unece.org/sites/default/file…
In that document there are a handful of provisions highlighted in yellow which were not agreed by the task force and require the full GRVA to resolve them.
The restriction of "SIM on highways only" has been removed (page 16, section 5.3.2.4.9).
In addition there is an update to UNR 79
(Steering Equipment) around ACSF which clarifies when UNR 171 (DCAS) can take priority over UNR 79 with respect to parking manoeuvers, details here
unece.org/sites/default/file…
They also have submitted a status report which they will present at the GRVA which you can find here
unece.org/sites/default/file…
The slide below is taken from the status report and shows they have completed all the items they set out to resolve in what they call "DCAS phase 3":
SIM on highways, highway-like roads, urban environments and other domains.
"Hands off driving" is permitted on highways and highway-like roads.
DCAS operation is allowed in closed parking areas.
Lane change requirements changed to allow for a more natural driving experience.
Approval at this GRVA means this DCAS UNR update goes to the WP.29 World Forum in June for a vote. Following a successful vote there and the usual 6 month hiatus for new or updated UNRs it will be in force from January 2027.
ACSF - Automatically Commanded Steering Function
ADAS - Advanced Driver Assistance Systems
DCAS - Driver Control Assistance Systems
GRVA - Working Party on Automated/Autonomous and Connected Vehicles
SIM - "System-Initiated" Manoeuvres, no driver initiation or confirmation required
UNECE - United Nations Economic Commission for Europe
UNR - UN regulation for use under the 1958 agreement
wHOR - Withholding hands-on requests, or "hands free" driving
WP.29 World Forum - UNECE World Forum for Harmonization of Vehicle Regulations