Treliske Hospital is now very badly served by buses from Truro centre and Truro Station, in particular. Only two services per hour now go into hospital grounds, excepting Park and Ride buses which are only available for those parking their cars at Langarth or Tregurra. Even the buses passing along the dual carriageway nearby are much diminished in frequency: the T1 and T2 with a joint 15 minute frequency replaced the 14 and 18 at 10 minute intervals. The last time I travelled by bus from the station I waited fifteen minutes, and then three buses were all scheduled at the stop at 11.11, which included the sole PCB journey to Truro College, which DOES call in at the hospital, and which I availed myself of.
My point is that many people visiting Treliske for out-patient appointments in particular may not have car access, or have conditions which preclude driving, and don't wish to impose on family or friends to drive them there. I'm such a person, although there are occasions when I've asked friends, and been very grateful. If you're less mobile for any reason, by the time you've got off the bus on the dual carriageway, crossed both carriageways and then found the most direct pedestrian route to the main wing, which is not signposted and involves accessing a car park via a mud path, you've walked a quarter mile and, by the time you've found your department in the hospital, on whichever floor, you've probably walked another quarter mile, or half mile if you've been unfortunate enough to go to the Tower Block.