It is a phrase that is commonly said and it doesn’t compare any two things, so it is an idiom.
Diary Keeping it is usually a written record of personal experiences and observations. It is also a daily record of events or measurable phenomena, usually kept to track patterns over time. A book or computer file can be used for keeping such a record.
Record Keeping it is the maintenance of a history of one's activities, as financial dealings, by entering data in ledgers or journals, putting documents in files.
Answer:
Cars are delayed or stopped because so many people are using the road.
Explanation:
The metaphor is "A drive that should take only 15 minutes can last more than an hour. It makes riding a bike sound a lot better."
Narrowing your topic. The last one