Does exploration movement rate in Basic D&D (B/X) include trap/secret-door detection?

In the Basic Rulebook for D&D, on page B19, it states that characters can move 120′ in a dungeon per turn (10 minutes). Later it states that this movement assumes players are mapping carefully, searching, and trying to be quiet.

What is meant by ‘searching’? Are characters automatically getting a detect trap and detect secret door roll (every 10′ or per trap/door) as part of this movement rate? It seems unclear what searching exactly means in this context.