Private bus operators also provide transport services to parts of the country.
Public and private bus operators provide transport services to various parts of the country.
One reason for the growing popularity is the financial benefit to the bus operators.
By 2010 the company had become the largest independent bus operator in Scotland.
This type is preferred by some emergency services and bus operators.
Sometimes private bus operators run services on behalf of the transport companies.
There are also several buses operated by private bus operators.
In this configuration, up to five different bus operators would have the chance to operate.
The National was also available to other bus operators.
Successful bids must have the backing of at least one major local bus operator.