"frequency of buses" is a correct and usable phrase in written English.
It is often used in a sentence to describe how often buses travel to a certain destination, for example: "The frequency of buses to the airport is every 30 minutes."
They both speak about the need to improve the frequency of buses in the district.
Because the Chinese are obsessed with appearing efficient, the number, size and frequency of buses comically exceed the need.
"It has been so popular we are already planning to increase the frequency of buses," said Hayim Grant, New York Apple Tours' president.
Traffic-reduction measures taken by the Department of Defense include incentives for car pooling and increasing the frequency of buses to the nearest Metro station.
The paper proposes some measures for the solution to the problems, such as increasing the departure frequency of buses, building the crossing-street infrastructure for pedestrians, shortening transfer distances.
(1) When the frequency of buses arriving at an intersection is low, the assignment of a DBL may be a waste of road resources and may reduce traffic capacity.
CT Transit had already imposed service reductions, reducing the frequency of its buses and eliminating a few stops altogether.
Residents of Washington Place and Lincoln Place had long complained about the noise, speed and frequency of the buses on their narrow one-way streets.
Last July, the borough council ordered a sewer truck to block a bus route because it was felt that New Jersey Transit had been ignoring complaints by residents about the noise, speed and frequency of its buses.
Metro later increased the frequency of Silver Line buses, added weekend service and improved connections to other transit lines.
Suppose the frequency of attacks on buses doubled from one month to the next.
