Scaling of geographic space from the perspective of city and field blocks and using volunteered geographic information

  title={Scaling of geographic space from the perspective of city and field blocks and using volunteered geographic information},
  author={Bin Jiang and Xintao Liu},
  journal={International Journal of Geographical Information Science},
  pages={215 - 229}
  • B. JiangXintao Liu
  • Published 19 September 2010
  • Geography
  • International Journal of Geographical Information Science
Scaling of geographic space refers to the fact that for a large geographic area its small constituents or units are much more common than the large ones. This article develops a novel perspective to the scaling of geographic space using large street networks involving both cities and countryside. Given a street network of an entire country, we decompose the street network into individual blocks, each of which forms a minimum ring or cycle such as city blocks and field blocks. The block sizes… 

Spatial Distribution of City Tweets and Their Densities

Social media outlets such as Twitter constitute valuable data sources for understanding human activities in the virtual world from a geographic perspective. This article examines spatial distribution

Scaling of Geographic Space as a Universal Rule for Mapping or Cartographic Generalization

Mapping, or cartographic generalization in particular, is a process of producing maps at different levels of detail by retaining essential properties of the underlying geographic space. In this

Scaling of Geographic Space as a Universal Rule for Map Generalization

Map generalization is a process of producing maps at different levels of detail by retaining essential properties of the underlying geographic space. In this article, we explore how the map

The Evolution of Natural Cities from the Perspective of Location-Based Social Media

  • B. JiangYufan Miao
  • Environmental Science
    Digital Social Networks and Travel Behaviour in Urban Environments
  • 2019
This article examines the former location-based social medium Brightkite, over its three-year life span, based on the concept of natural cities. The term natural cities refers to spatially clustered

Exploring point zero: a study of 20 Chinese cities

The results indicate that it is possible to determine the approximate location for a point zero from geographical data and, based on the buffer zone of such a location, an actual point zero may further be recommended.

The Image of the City out of the Underlying Scaling of City Artifacts or Locations

Two fundamental issues surrounding research on the image of the city focus on the city's external and internal representations. The external representation in the context of this article refers to

Delineation of cities based on scaling properties of urban patterns: a comparison of three methods

A purely morphological approach is adopted and three methods for the morphological delineation of cities are compared and it is shown that it is impossible to draw an unambiguous morphological boundary for an urban agglomeration.



Scaling and allometry in the building geometries of Greater London

Abstract.Many aggregate distributions of urban activities such as city sizes reveal scaling but hardly any work exists on the properties of spatial distributions within individual cities,

Laws of population growth

The CCA is introduced, based on spatial distributions of the population at a fine geographic scale, defining a city beyond the scope of its administrative boundaries, and it is found that the mean growth rate of a cluster by utilizing the CCA exhibits deviations from Gibrat's law, and that the standard deviation decreases as a power law with respect to the city size.

Scaling laws in the spatial structure of urban road networks

Zipf's law for all the natural cities in the United States: a geospatial perspective

Demarcate urban agglomerations by clustering street nodes (including intersections and ends), forming what the authors call natural cities, finding that Zipf's law holds remarkably well for all the natural cities across the United States.

Network Density and the Delimitation of Urban Areas

This paper examines network analysis for urban areas focused in particular on understanding spatial patterns drawn by networks and in helping with the delimitation of city centres.

Scale invariance in road networks.

It is shown that for sufficiently large geographic areas, the dual degree distribution follows a power law with exponent 2.2< or = alpha < or =2.4, and that journeys, regardless of their length, have a largely identical structure.

Cities as Organisms: Allometric Scaling of Urban Road Networks

The approach presented here offers a novel macroscopic perspective on the differences between small and large cities and on how the road infrastructure and traffic might change as cities grow.

Defining and Delineating the Central Areas of Towns for Statistical Monitoring Using Continuous Surface Representations

This study attempts to develop a robust, generally applicable methodology for identifying the central areas of UK towns for the purpose of statistical reporting and comparison using continuous density transformations from unit post code data relating to a series of indicators of town centredness.

A scale-adjusted measure of Urban sprawl using nighttime satellite imagery

  • P. Sutton
  • Environmental Science, Economics
  • 2003

Automatic generation of the axial lines of urban environments to capture what we perceive

Based on the concepts of isovists and medial axes, a set of algorithms are developed that can automatically generate axial lines for representing individual linearly stretched parts of open space of an urban environment that constitute a true skeleton, superior to medial axes in capturing what the authors perceive about the urban environment.