47. The Chair presented a revised list of priorities and subjects under consideration (GRE-89-29). GRE approved the list and requested the Chair to pass it to WP.29 for endorsement.

48. In the framework of TF AVSR activities, the experts from Germany and OICA organized a demonstration of a test vehicle equipped with integrated automated ADS marker lamps which followed the basic concepts from both the SAE International Recommended Practice J3134 and the Chinese draft standard for light-signalling devices (GRE-89-25), including the blue-green (turquoise) colour for such lamps. GRE thanked the demonstration organizers.

49. The expert from TF AVSR pointed out that they would submit to the next GRE session an informal document addressing the colour and intensity of the ADS marker lamps, electrical connections and a switch that would deactivate the lamps in those countries which may decide not to allow ADS lamps on national roads.

50. The expert from France appreciated the demonstration and supported the ADS marker lamps as a soft way to introduce the ADS status signal. The expert from the United Kingdom reserved their position and reiterated that they did not see benefits of the ADS lamps, as public could react unexpectedly to such signals. As an alternative, he proposed to use the vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communications.