Also four services per hour proved to be too little.
The new services have proved a boon to many businesses.
The service has proved so popular that a fourth direct train is now in operation.
The service proved popular and was increased to an hourly frequency the following year.
Clearly, thought Matsura, they didn't think his services would prove critical to the research effort.
The service has proved itself, in terms of both reliability and need.
The services proved popular and the following season saw eight vehicles used, including two new buses together worth £80000.
If your services prove useful, I will call on you.
While only recently introduced, the service is already proving very successful.
That service proved popular and now has 1.7 million customers.