Priority Lane for Route Bus
路線バス等優先通行帯(ろせんバスとうゆうせんつうこうたい)
Meaning
A sign indicating a lane in which route buses and similar vehicles have priority. Ordinary vehicles may also use it, but must promptly leave the lane when a bus approaches.
Common mistake on the test
Unlike an exclusive lane, ordinary vehicles may use it. The key point is the duty to give way when a bus approaches.