The following first sentence comes from Wikipedia, which 'the' is not used before 'traffic', while the second one comes from BBC, which has 'the' before 'traffic'. I wonder if both usages are correct or not? If yes, is there a difference between these two sentences with and without 'the'? If no, which one is correct ?
For cycling in particular, collisions at intersections (defined broadly as "not only the junction of two roadways, but also points where driveways, sidewalks, or paths meet a roadway, or where sidewalks or paths meet a driveway") while traveling in the wrong direction against traffic has been determined to be over three times more likely for wrong-way cyclists.
The van was then spotted joining the M4 at junction 15 (Swindon east), driving against the traffic towards London on the westbound carriageway.
