original: A rush hour or peak hour is a part of the day during which traffic congestion on roads and crowding on public transport is worst.
simplifications: A rush hour or peak hour is when there is usually traffic congestion on roads and crowding on public transport is worst. A rush hour is when the traffic on roads and on public transport is worst. A rush hour occurs when traffic congestion on roads and crowding on public transport is the worst. A rush hour, or peak hour, is a part of the day when traffic jams and crowding on public transport are worst. Rush hour or peak hour is when the traffic on the roads is very busy. There are also many crowds on public transport. A rush hour is a part of the day when traffic is the worst. A rush or peak hour is when traffic congestion on roads and crowding on public transport is worst. A rush hour is a part of the day where traffic congestion on roads and crowding on public transport is the worst. Rush or Peak hour is the time of day that traffic on roads and crowding on public transportation is the worst. A rush hour is also known as peak hour. It is the time of day when there is a lot of traffic on the roads. There is also many people using public transportation at this time.