Tyler, 1990

Search and rescue

Mirco scale
San Francisco and Alameda County

Vehicle registration
Power lines
Incoming reports

Database query Reports

Van Creveld, 1991

Automated emergency response

West Midlands
345 square miles

Real-time tracking of 24 rescue vehicles

Network routing

Fost, 1990

AIDS surveillance

San Francisco

Street network
Questionnaire data

Database queries

Twigg, 1990

Assessment of CPs and clinics relative to school catchment districts

Enumeration district approximation using Thiessen polygons

Households without WC and bath
GP surgeries and clinics
School catchment districts

Thiessen polygons

Zwarenstein et al., 1991

Measuring accessibility

Defining hospital catchment areas using Thiessen polygons

Persons/bed ratios

Thiessen polygons

Moore, 1991

Degree of public exposure
Assess health risks from emissions

Isopleths of cancer risk

Carcinogenic and non-carcinogenic health risks (facility specific)

Isopleths
Modelling

Cuthe et al., 1992

Prediction of high blood lead levels among children

Identification of high-risk census tracts

Blood screening records
Local sources of industrial and hazardous wastes
Traffic volume

Overlay operations
Modelling

Fitzpatrick-Lins et al., 1990

Regional variations in radon potential

Within county

Underlying geology
Soils
Indoor radon data

Overlay operation
Exploratory data analysis

Openshaw et al., 1990

Significance of cancer clusters

Point locations incidence

Childhood leukaemia

Neighbourhood operation-search using radii

Solarsh and Dummann, 1992

Measles surveillance

Subdistrict (Edendal Health Ward, southern Natal)

Hospital inpatient data

Scale