The phrase "a frequent service" is correct and usable in written English.
It can be used to describe a service that occurs often or regularly, such as transportation or customer support.
Example: "The bus company offers a frequent service between the city center and the airport, making it convenient for travelers."
Alternatives: "a regular service" or "a consistent service".
Cost: From £118 a night Train tickets courtesy of Virgin Trains which runs a frequent service between London Euston and Carlisle.
These were "to link large population centres, within one and a half to three hours, few or no intermediate stops, a frequent service, a high user rate and good connections to other forms of transport".
The Woolwich Ferry, with 2.5 million passengers every year, is a frequent service linking the North and South Circular Roads.
Some areas have a frequent service of every 10 15 minutes on some routes, with half hourly frequencies on other routes.
The street trams operate mostly within the borders of the Ring Line, providing a frequent service in the city center, with lower average speeds but with more stops.
Overnight layovers mean paying for crews' bed and board.Selling enough tickets to fill a medium-sized "widebody" plane like the 787 several times a week, and thus to run a reasonably frequent service, is a lot harder than filling the smaller "narrowbodies" the budget airlines typically use on short routes.
By 2012, Virgin Trains enjoyed spanking new rolling stock, a more frequent service and a superfast line that whisked passengers from London to Manchester in just two hours.
South West Trains has published a revised timetable, while Southern Railways said it planned to operate a "less frequent service" between London and the south coast.
The Thameslink upgrade means trains running from Bedford and Brighton will use a 12-carriage service instead of eight and will eventually lead to a more frequent service.
It also ran a "less frequent service on some routes between London and the south coast".
This was changed in the mid-1990s, with a more frequent service to Avonmouth but very few on to Severn Beach.
