What is the meaning of the following traffic sign?

1. Information sign: Entry of non-motor vehicles is prohibited in both directions.
2. Correct answer: No entry for all vehicles (one way street Oncoming traffic).
3. Warning sign: Entry of motor vehicles is prohibited in both directions.
4. Two-way street ahead.

WhyA red circle with a white bar is 402: no entry for everyone, because traffic comes toward you from there. It is usually the exit of a one-way road.