41. The Chair presented a revised list of priorities (GRBP-80-14) and invited all experts to provide comments with the aim to update the document accordingly. As a new topic, the expert from France suggested development of a sound signal to announce the arrival of an electric public transport vehicle (e.g. bus) at a bus stop. Some experts supported this idea, while some others pointed out that such a signal could disturb people around. GRBP agreed to continue the discussion at the next session.