Sprawl in Canada and the United States

Lewyn, Michael

doi:10.2139/ssrn.2103999

Cited by 4 publications

(2 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the United States, as previously reported (10), street-network sprawl exhibited an extraordinarily steep rise until the mid-1990s, but thereafter has been in decline. Interestingly, neighboring Canada followed a similar trend to the United States, with a steep increase in SNDi followed by a turnaround in the 1990s, but it peaked at a much lower level (SNDi = 3.7; SI Appendix), possibly reflecting higher fuel prices and a more limited highway construction program in Canada, as well as differences in local land-use regulations (19)(20)(21).…”

Section: Trends In Urban Developmentmentioning

confidence: 95%

Global trends toward urban street-network sprawl

Barrington‐Leigh

Millard‐Ball

2020

Proc. Natl. Acad. Sci. U.S.A.

View full text Add to dashboard Cite

We present a global time series of street-network sprawl—that is, sprawl as measured through the local connectivity of the street network. Using high-resolution data from OpenStreetMap and a satellite-derived time series of urbanization, we compute and validate changes over time in multidimensional street connectivity measures based on graph-theoretic and geographic concepts. We report on global, national, and city-level trends since 1975 in the street-network disconnectedness index (SNDi), based on every mapped node and edge in the world. Streets in new developments in 90% of the 134 most populous countries have become less connected since 1975, while just 29% show an improving trend since 2000. The same period saw a near doubling in the relative frequency of a street-network type characterized by high circuity, typical of gated communities. We identify persistence in street-network sprawl, indicative of path-dependent processes. Specifically, cities and countries with low connectivity in recent years also had relatively low preexisting connectivity in our earliest time period. We discuss implications for policy intervention in road building in new and expanding cities as a top priority for sustainable urban development.

show abstract

Section: Trends In Urban Developmentmentioning

confidence: 95%

Global trends toward urban street-network sprawl

Barrington‐Leigh

Millard‐Ball

2020

Proc. Natl. Acad. Sci. U.S.A.

View full text Add to dashboard Cite

show abstract

“…Land in housing densities is very important because of the huge financial requirement and scarcity in most urban centres of the country for housing production (Mehmet, 2009). The low density settlements typical of urban fringe or peri-urban areas result in the removal of frontier vegetation and consequent loss of biodiversity, convert agriculturally productive areas to less productive residential development, exacerbate the spread of weed and animal pests and increase energy consumption and infrastructure provision costs (Lewyn, 2012).…”

Section: Introductionmentioning

confidence: 99%

Socio-Economic Implications of Housing Density Mix in Residential Estates of Akure, Nigeria

2019

RHSS

View full text Add to dashboard Cite

The socioeconomic implication of housing density composition in residential estates is somewhat less straight forward. From the perspective of urban economists, the intra-urban location of forms, workers and households cause variation in the demand for housing and commercial space. The 2003 United Nation Report noted that by 2030, about 60 percent (3/5 of the world's population) will live in urban areas. In view of the attendant problems, the study focused on the socioeconomic implications of housing density mix in residential estates of urban area using Akure, Nigeria as a case study. The study identified eight major socioeconomic variables in eleven residential corridors of Akure to evaluate their impact on housing density mix. One estate was picked at random from the residential corridors for the study. 933 buildings were systematically selected for administration of questionnaires. For easy identification, maps were generated for each of the selected residential estates. The maps showed the buildings and roads, which were used in distributing and administering the questionnaire. It was observed that, the area was mainly dominated by civil servant with medium housing density development. Also, the degree to which socioeconomic characteristics impacted housing density was positive with correlation coefficient (r) = 0.559 and coefficient of determination (R 2) of 0.312. This implies that, socioeconomic variables accounted for 31.2% of housing density in the area. The study suggested that government should introduce land use zoning to enhance effective land use planning and ensure proper housing density in the area.

show abstract

Health Privacy in Public Places

Bernstein¹

2013

SSRN Journal

View full text Add to dashboard Cite

Sprawl in Canada and the United States

Cited by 4 publications

References 14 publications

Global trends toward urban street-network sprawl

Global trends toward urban street-network sprawl

Socio-Economic Implications of Housing Density Mix in Residential Estates of Akure, Nigeria

Health Privacy in Public Places

Contact Info

Product

Resources

About