BandA wrote:Didn't they screw up ashmont or mattapan turnaround radius?Mattapan is the system-tightest radius, at 38.5 ft. Only a PCC can take that, so if LRV's go there they will change ends at the platform (double-ended cars not needing to loop at the terminal like single-ended PCC's do). On the loop through the yard the curve behind the maint shed is somewhere between the tight and loose halves of Park Loop in radius, comfortably above minimum design tolerances. Ashmont Loop squeals like a demon because they didn't didn't do a great job with noise abatement on that new concrete viaduct, but the curve radius itself is a relatively generous 65 ft.