A lot of Leicester attractions and car parks are situated on or near the ring road. A lot of cars use the ring road and it is often congested. It's quite a long walk from one side of the ring road to the other and the transport hubs aren't in great locations. Why not have a circular bus route?
Ticket discounts or freebies could be available to people carrying tickets from the railway, NCP or other bus routes.
The ring road carved up the city when it was built but it isn't going to go away so we might as well make the most environmentally friendly use of it.