Drivers employed by First Bus in Chester struck on Friday of last week over pay.
The strike by members of the Unite union lasted for three hours from 11am.
The workers had planned to strike last month but the action was called off following legal threats.
There is now a pattern of First bosses across the country rushing to the courts – or threatening to – in order to block strike action against its pay freeze.
One Chester bus driver said First claimed to have no money for pay rises yet had found £50,000 to spend on putting Global Positioning System (GPS) navigation systems in all of the buses.
He added, “We’re striking because we want some acknowledgement of the work bus drivers put in.
“It’s a difficult job and £8.30 an hour is quite a poor wage when you consider the unsociable hours we do.”