The sign you mentioned, Symbol notice 1010-63, indicates "No bicycles allowed." This sign is used to prohibit the entry of bicycles in certain areas, which can include roads, pedestrian zones, or specific paths where bicycles may pose a danger or interfere with pedestrian movement.

In areas marked by this sign, cyclists must find alternative routes. It's important for drivers and cyclists to adhere to this regulation to ensure the safety of all road users. If you have any further questions about this sign or related traffic rules, feel free to ask!