Final answer:
The word 'volume' in the sentence means the size or scale of something.
Step-by-step explanation:
The meaning of the word "volume" in a sentence can vary depending on the context. "Volume" has multiple meanings, and its interpretation may be influenced by the surrounding words.
The word volume in the sentence means the size or scale of something. In this context, it refers to the amount of traffic on the road, which is causing everyone to drive slowly.