Population Density & Transit Viability

This is another map of population density per square km, though colourized to show specifically areas with a population greater than 3000 people per square kilometer, or 12 people per acre. Red are areas less than 3000 people per sq km. This refers to a study by referred to in Nathan Lauster's book The Death and Life of the Single-Family House as a notional minimum density for cost-effective bus service. The quote, from page 43: "The relationship between urban density and public transit use is exceptionally strong, with some suggestion of a cutoff--perhaps around twelve persons per acre (or about three thousand per square kilometer)--below which ridership drops off and expense per user makes transit impractical." The study is cited as: Kenworthy, Jeffrey, and Felix Laub. 1996. Automobile Dependence in Cities: An International Comparison of Urban Transport and Land Use Patterns with Implications for Sustainability. Environmental Impact Assessment Review 16:279-308

Author: BDawe

Dataset: CA16