(25 May 2023, 8:44 am)Unber43 wrote There is a huge difference between 10 and 15 mins, if its 10 mins if ones late it will only be another 10 mins, so a 20 mins wait, if a 15 min service doesn't run that will be 30 mins, if one doesn't run and the one behind it gets busy that its 15 mins late, then it goes out of service thats a 45 min wait instead of 30. 

10 to 12 is no issue really, its only upto an extra 4-6 mins if one doesn't run (waiting 12, 24, 36 etc).

In fairness though all services should run though, arguably reducing it would help that as you'd have more drivers spare to reduce cancellations. Obviously breakdowns will always be an issue but you could make the argument the engineering have less buses to look after so can better look after buses.

10 minute and more frequent services quite often have stacking issues which you don't tend to get with 15 minute services as no-one goes for a bus 10 minutes early.