"peak rush" is a correct and usable phrase in written English
It refers to a period of time when something is at its busiest or most intense level of activity. Example: "During the holiday season, the stores experience a peak rush as shoppers flock to buy gifts."
During the peak rush hours, the waves reached about 20 inches in height -- up from a maximum of 4 to 6 inches in the wee hours.
Both my teacher husband and eighth-grade son ride crowded subways during peak rush hour, making them, like many other New Yorkers, potential targets.
The ad showed almost a full page aerial photo of the Tysons area at peak rush hour, with heavy traffic trying to get from office parks onto main arteries.
Because it is the only line on the East Side of Manhattan, the platforms are always overcrowded, especially at peak rush hour, so it takes a long time for people to board and exit the trains.
Most shoppers want to receive their packages between 4pm and 7pm, which is bothersome for companies because that's during peak rush hour.
Any one who commutes in major cities knows the value of back roads when it comes to avoiding traffic on the highways during peak rush hour times.
The morning and afternoon peaks (rush hours), which are typical for inner-city roads, are clearly visible.
"Can you take us?" It is peak lunchtime rush hour.
The figures for overcrowding are even higher when looking just at the peak morning rush hour of 8am to 9am.
If train service increases, at the peak of rush hour in New Hyde Park, crossing gates could be down for more than 50 minutes in an hour at some intersections.
In the peak evening rush hour of 5pm to 6pm, Waterloo is the worst for overcrowding, with 27% of passengers having to stand.
