You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "how many cars use the dartford crossing each day?" whose answer is over 130,000.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Dartford Crossing traffic volume each day
Useful Output:

Doc 1: The crossing is now considered one of the UK's most important transport routes, carrying more than 50 million vehicles a year – about 180,000 a
Doc 2: Built almost 60 years ago, the Dartford Crossing has a total design capacity of 135,000 vehicles a day, but it is currently way above this and
Doc 3: Designed for 135,000 vehicles per day, the crossing is now operating over capacity and is regularly used by more than 150,000 vehicles per day
Doc 4: With over 100,000 vehicles a day using the crossings, this could result in huge delays - particularly during rush hour and other peak times. A
Doc 5: Designed to cope with up to 135,000 vehicles crossing per day, the team routinely see traffic flows excess of this.  Managing traffic flow is a