The Snaefell Mountain Railway is operating once again after undergoing trials this morning.
Operations were halted yesterday when the system failed to comply with reduced speed limits.
The limitations were introduced after a tram's brake failed last week.
The Health and Safety at Work Inspectorate attended the trials and confirmed the effectiveness of speed monitoring equipment and management procedures.
The trams will now travel at 8mph as opposed to the usual 12mph to ensure passenger safety.
Fuel price hit may last into winter, says government
Further temporary speed limits on TT course
Western homes to be without water tomorrow
Co-Op ordered to hand over evidence in blind worker's tribunal
Who'll be getting meningitis vaccines?
New atlas shows dramatic fall in Island birth rate
Autocar lavishes praise on Island's roads
Super Unleaded hits almost 165p a litre