When people say BRT can't be converted to LRT they mean the BRT isn't being designed to accommodate a simple retrofit. Some BRT lines are designed to be easily retrofitted and some aren't. Obviously, even if the BRT isn't designed to be easily retrofitted it can be ripped out and replaced with LRT for a cost.
Yup, substantial parts of Ottawa's Transitway over the next decade or so will be upgraded to LRT. It was partially designed for LRT in that it has grade separations in key places, but for stations outside of the downtown (Blair, Cyrville, St. Laurent, Train, Hurdman, Lees, uOttawa, Bayview, LeBreton) they're being more or less completely rebuilt in order to support LRT, although the degree of reconstruction varies depending on the station.




