I usually say it when I am supposed to describe something coming from front on roads. But somehow it does not feel natural even though it syntactically it is correct. so what is the natural expression for this?
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From ahead works; ahead means 'the direction toward which body motion or gaze are aligned' (these are normally the same, and both associated with the head ends of mammals). Likewise, from behind (associated with the other ends of mammals); both allow no article.
Front, however, like right, left, and back, needs some determiner to anchor it when used with a preposition. An article will do, or a possessive, which refers to the object or person with a front/back orientation
Of course some objects don't have front/back orientation, so you can't refer to
And only objects with front/back orientation can have left/right orientation
unless it's with reference to an observer's viewpoint
Do you mean a situation as in a traffic jam, for example, with "some strange noise coming from..." Hm, "from ahead" I think.