Population Density and Proposed Transit Lines

The question of population density has come up in comment threads here in relation to various competing transit proposals.

As part of a planning course at Ryerson, Anthony J. Smith reviewed the SmartTrack and Downtown Relief Lines together with detailed data on population density, income and other measures. His paper Toronto Transit Choices: Evaluation of the Downtown Relief Line + SmartTrack Options including maps is available online at the Healthy City Maps website.