This study is provided by ICPSR. ICPSR provides leadership and training in data access, curation, and methods of analysis for a diverse and expanding social science research community.

RAND Center for Population Health and Health Disparities (CPHHD) Data Core Series: Street Connectivity, 1990, 2000 [United States] (ICPSR 27861)

Principal Investigator(s):


The RAND Center for Population Health and Health Disparities (CPHHD) Data Core Series is composed of a wide selection of analytical measures, encompassing a variety of domains, all derived from a number of disparate data sources. The CPHHD Data Core's central focus is on geographic measures for census tracts, counties, and Metropolitan Statistical Areas (MSAs) from two distinct geo-reference points, 1990 and 2000. In this collection, Street Connectivity, two datasets are available: one for the 1990 Census and another for the 2000 Census. These files contain one record per census tract and have several measures associated with the street network data based on the TIGER/Line files available for each Census. These measures have been computed using ArcGIS software. At the tract level, the type of measures included are: number of street segments and intersections, average and median block length and block size, ratios of the actual number of complete loops to the maximum number of possible loops given the number of intersections, and ratios of the actual number of street segments to the maximum possible given the number of intersections.

Series: RAND Center for Population Health and Health Disparities Data Core Series

Access Notes

  • These data are available only to users at ICPSR member institutions. Because you are not logged in, we cannot verify that you will be able to download these data.


DS0:  Study-Level Files
DS1:  Cross-Sectional Data, 1990 Geo-Referenced - Download All Files (35.3 MB)
DS2:  Cross-Sectional Data, 2000 Geo-Referenced - Download All Files (38.3 MB)

Study Description


Escarce, Jose J., Nicole Lurie, and Adria Jewell. RAND Center for Population Health and Health Disparities (CPHHD) Data Core Series: Street Connectivity, 1990, 2000 [United States]. ICPSR27861-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2011-06-03. http://doi.org/10.3886/ICPSR27861.v1

Persistent URL:

Export Citation:

  • RIS (generic format for RefWorks, EndNote, etc.)
  • EndNote XML (EndNote X4.0.1 or higher)

Scope of Study

Subject Terms:   census, census data, census records, census tract level, communities, counties, FIPS codes, neighborhood characteristics, neighborhoods

Smallest Geographic Unit:   census tract

Geographic Coverage:   Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Puerto Rico, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, United States, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming

Time Period:  

  • 1990
  • 2000

Date of Collection:  

  • 1990
  • 2000

Unit of Observation:   census tract

Universe:   All census tracts in the 50 United States and District of Columbia (1990 and 2000) and Puerto Rico (2000).

Data Types:   census/enumeration data

Data Collection Notes:

Data for Decennial Census Abridged (ICPSR 27866), Segregation Indices (ICPSR 27863), Neighborhood Socioeconomic Status (SES) Index (ICPSR 27865), Disability (ICPSR 27862), Cost-of-Living Indices (ICPSR 27621), and Pollution (ICPSR 27864) are also available from ICPSR.

Additional details about the RAND Center for Population Health and Health Disparities (CPHHD) Data Core Series can be found on the RAND Web site.


Study Purpose:   The purpose of the CPHHD Data Core Series is to provide projects with the data tools necessary to conduct quality, population-based, health-relevant research.

Data Source:

United States Bureau of the Census TIGER/Line 1992 files (for 1990 measures)

United States Bureau of the Census 108th CD Census 2000 files (for 2000 measures)


Original ICPSR Release:  

Related Publications ?



Metadata Exports

If you're looking for collection-level metadata rather than an individual metadata record, please visit our Metadata Records page.

Download Statistics

Found a problem? Use our Report Problem form to let us know.