I personally hard to imagine how a LRT line can sufficiently serve the Broadway corridor. Currently almost every minute a No.9 or 99 run along Broadway. I assume a single LRT line has peak frequency of every 4 or 5 minutes , will it able to provide enough capacity? unless assume a LRT car has no seats (standing room only!) so that it can pack 200+ people in one car then probably it may work!
From my experience I am not impressed in LRT system in Calgary and Hong kong. I know Calgary C-trains do have huge boardings and most would consider it a successful infrastructure, but even from a tourist perspective I found C-trains not frequent and not fast enough (may be I am too get used to Vancouver skytrain)
Hong kong MTR Light Rail (formly KCR light rail) serving the Tuen Muen and Yuen Long (satelite cities in North Territorites of Hong kong), a population area of more than 1 million. It is an example of LRT cannot do the job in high density area. The LRT in Hong kong have much greater routes selection and combined frequncies than Calgary C-trains, and have drivers and transit priority signals. However it is so slow, the maximum operational speed is 80km/h, the real speed is slower than bike! And it is sardine-packed too because residents don't have much other options since many buses have been axed when LRT there started operating in early 1990s. In recent years with the additional of many bus routes back and a heavy rail (MTR West Rail
) serving as backbone the transit there improving again. Light Rail by itself is simply a great failure, and many Hong kong residents still see it as the most inferior mass transit system there