Due to Butterworth 's importance as a transportation hub , most of the Rapid Penang 's routes originate and terminate within the town .
Public bus services are provided by two firms - Rapid Penang and Cityliner .
Due to Butterworth 's importance as a transportation hub , most of the Rapid Penang   's routes originate and terminate within the town .
Public bus services are provided by two firms - Rapid Penang and Cityliner .