(23 May 2016, 8:00 pm)Tom wrote 17 is being extended to Metrocentre I think as it's being replaced by from Rosehill to Cramlington according to the drivers. Makes sense just extending the 17 as it would only need 6 buses.
Don't think extending the 309 and 310 is a good idea are reliability would go out the window on both services
But if extra running time is added into the timetable at Key Points of the route then there shouldnt be any issues, short runs will also aid reliability.
Furthermore take a look at the 1 , 20/20A & 5/50 for Services which are long routes with extra running time etc built into the timetable, and how reliable they are, as I say shouldnt be any issues in relation reliability.