What does this road sign indicate?

Question

KET Užduotys · Accepted Answer

Correct answer: The start of a built-up area where the Rules' requirements for built-up areas apply.. Explanation: This is the information sign No. 550 „Built-up area“. It marks the start of an area where stricter traffic rules apply, such as the 50 km/h speed limit.. KET reference: KET 1 priedas 550: Built-up area — the start of a built-up area where the Road Traffic Rules requirements for built-up areas apply.