The timetable is not back to pre Covid levels, whilst a sense of normality on our busiest two lines of route (Southport and Chester) has been employed, it has not been possible to reintroduce a 15 min service on other lines, because a reliable and robust service cannot be guaranteed. Such is the volatility of sickness and absence and the numbers so tight that if a 15min service was insisted on across the network, unplanned cancellations would occur leading to capacity issues on shouldering services. However, Merseyrail have tried to mitigate the concern over frequency by employing longer trains more often, this means the actual capacity of spaces on service delivered is more than pre Covid. This activity on an aging fleet is not sustainable in the long term. More miles per train means more maintenance and the 507/8 are nearing end of life, it is not economically sensible to conduct further heavy maintenance when a unit is to be retired and replaced with 777 – but if the 777 introduction is significantly delayed further, heavy maintenance will have to occur, if not a reduction in capacity / frequency is inevitable.