However, in some countries it is common even on systems with very high passenger volume.

At the time, the station had a passenger volume of 85,000 daily.

In 2005 it had a passenger volume of 25 million and employed more than 8,200 people.

Because of the low passenger volume, there have been no security delays.

The passenger volume of 13,700 passengers per year is relatively low.

Passenger volume bounced back to 437,203 last year from its low, 271,157, in 1990.

In 1991, the combined passenger volume of the city's airports was at 7.9 million per year.

However, even with fewer means to get to and from the station, passenger volume did not decrease immediately.

When more lines interchangeable with Line 2 open around 2015, the passenger volume could reach 1 million per day.

Systems outside North America often have much higher passenger volumes.