"Rush hour" refers to the times of the day when lots of people are traveling to or from work or school, causing heavy traffic and crowded public transportation. Full definition
Because of this, there is often heavy traffic around this area and more chance of a car accident, especially during rush hour traffic. (carinsurancequote.net)
I didn't, I got stuck in rush hour traffic. (carbuyer.co.uk)
Why not eradicate the worry of getting stuck in rush hour traffic and stay the night before your departure in an airport hotel? (somak.com)