Proposal to increase the potential speed reduction during the collision warning phase and clarify the interpretation of “engine start/run cycle”.
Proposal to align provisions with corresponding provisions of UN R152 and to clarify the interpretation of the provisions on system robustness when applied to heavy duty vehicles.
AC.3
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WP.29
Proposal to permit the use of a positive lock type system as an alternative to a friction type parking brake system.
Proposal to allow a mechanical locking device as an alternative to the friction parking braking to hold the vehicle.