Bus cancellations this week are a result of a diminished fleet size, the Department of Public Transportation said this afternoon.

In a statement, the DPT said the entire service faces the possibility of service cancellation and “there are no particular runs preferred for cancellation over others”.

A spokesman said that the fleet size has shrunk from 123 buses in 2007 to 105 buses today. The weighted average age of the fleet is ten years, while the industry standard is less than seven years.

The statement said: “The fleet operates 365 days a year, seven days a week and 18 hours a day.

“As the buses get older, they become more unreliable and breakdown more frequently. The causes of these breakdowns are varied. They include oil leaks, air system failures, problems with the seats, bells not working, steering issues.

“At present, there are ten buses out of service that need engine rebuilds or new transmissions. These parts have been ordered as soon as these parts arrive this work will begin.

“The last new buses were purchased in 2014 before that 2009. The DPT is hoping to purchase new buses this year but will not see them until the end of the year and early next year.

“In addition, the DPT made it clear that while early morning information indicated the intention to cancel nine school bus runs, in fact, all the runs to CedarBridge Academy were eventually covered with the rerouting of other buses on the road, although some would have been running behind time.”