In my hometown of grand rapids, mi they just got a articulated bus for their second brt the laker line before that on their silver line they just used regular buses soot not essential to have articulated buses for brt. Also even if we did we don't have high enough ridership for articulated buses who is riding the bus past Belle isle most people who would need to go down northwest expressway would need to go past meridian all the jobs and apartments are up to council