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Table 3 Summary of GIS data sources used

From: GIS measured environmental correlates of active school transport: A systematic review of 14 studies

GIS data sources

 

Network data

 

Topographically Integrated Geographic Encoding and Referencing (TIGER)/line street centerline data (US)

[1720]

City of London Planning Department (Ontario, Canada)

[23]

The State Government of Victoria (Australia)

[28]

Department of Urban Development of Taipei City (Taiwan)

[29]

Bicycle and pedestrian level of service database-County's Geographic Information System (Alachua County, Florida, US)

[19]

DMTI CanMap Route Logistics

[25]

Commercial data: Ordnance Survey Integrated Transport Network

[27]

Aerial images (e.g., Orthophotos, 4-m multispectral satellite imagery (Ikonos), 15-cm resolution [23])

[23] (enhance accuracy)

Field surveys/Audit

[23] (enhance accuracy)

Demographic/land use

 

Census data (e.g., U.S. Census Bureau/Statistics Canada/Australian Bureau of Statistics, Household Registration Office of Wenshan District (Taiwan), etc)

[20, 2226, 28, 29]

The Metropolitan Transportation Commission and Association of Bay Area Governments (Alameda, California, US) (land use)

[18]

Property appraiser's database (parcel layer in county's GIS) (Alachua County, Florida, US) (land use)

[19]

Commercial data: Ordnance Survey Mastermap Address Layer 2 (land use)

[27]

Derived land cover data (land use)

[27]

House tax database of the Taipei Revenue Service (floor area data)

[29]

Department of Transport of Taipei City (employment, vehicle ownership, and travel speed)

[29]

Police Department of Taipei City (crime)

[29]

Norfolk and Suffolk constabulary (traffic accidents)

[27]

Commercial data (e.g., PRIZM database by Claritas [population density-urbanisation])

[21, 22]

Others

 

Local Authority (streetlight data)

[27]

Commercial data: Ordnance Survey Mastermap Topography (slope data)

[27]

Not reported

[16, 26] (network and altitude data not reported) [21]