The third route from Bury was via Heywood. It should be possible to open that route because it has been almost completely preserved by the ELR and a connection to the heavy rail network at Castleton. And, there is room to build a new heavy rail station in Bury almost next to the Metrolink station. However, the Heywood route is longer than the Metrolink route, about 13.3 miles* compared with 9.7 miles. There will be only 4 stops (if trains stopped at all stations) compared with 9 stops on Metrolink. I think it likely that on the basis of new trains, the heavy rail service would be marginally quicker than Metrolink and provide a more comfortable but less frequent service. Building an additional park and ride station somewhere around Heap Bridge might reduce traffic going into Manchester via the M66, especially if the service ran through Victoria to other stations in central Manchester and beyond. So, rather than messing about with tram-trains between Bury and Rochdale, it would be better to implement this service with the expectation that eventually the current problem with upgrading the line through Oxford Road and Piccadilly line will be sorted out sooner rather than later.