Streetcars have more capacity than buses. Transit City cars will have WAY more capacity than buses. Bloor-Danforth was running two-car trains at the time they decided to move toward subway. A bus at capacity and a streetcar at capacity are different things.
Yet despite having a lower capacity, the Eglinton West bus route carries only 3100 fewer passengers per day than the Queen streetcar (and those are even ALRV). The ALRVs have roughly the same capacity as the two-car trains that were running on B-D prior to the subway being implemented. With all this talk about the DRL and how it needs to either replace or severely relieve the Queen streetcar, one would think the same thing would apply for the Eglinton bus route. During the morning period, the Eglinton West bus is running every 1'48", while the Queen streetcar is running every 3'08".