Links to the Color Figures in 
Geographical Analysis (1998) 30(3), 191-216.

Space-time and Integral Measures of Individual Accessibility: A Comparative Analysis Using a Point-Based Framework 

Mei-Po Kwan
Department of Geography, The Ohio State University

Fig 1 Figure 1a: Impedance functions for the gravity-type accessibility measures: Power function (97K)
Fig 1b Figure 1b: Impedance functions for the gravity-type accessibility measures: Exponential function (102K)
Fig 1c Figure 1c: Impedance functions for the gravity-type accessibility measures: Gaussian function (97K)
Fig 1d Figure 1d: Various impedance functions compared (98K)
Fig 2a Figure 2a: Accessibility surface of the gravity-type measure: POW 1.5 (197K)
Fig 2b Figure 2b: Accessibility surface of the gravity-type measure: EXP 0.45 (201K)
Fig 3a Figure 3a: Accessibility surface of the cumulative-opportunity measure: CUMR 20 (196K)
Fig 3b Figure 3b: Accessibility surface of the cumulative-opportunity measure: CUML 20 (192K)
Fig 4a Figure 4a: Accessibility surface of the space-time measure: MHWA (192K)
Fig 4b Figure 4b: Accessibility surface of the space-time measure: FHWA (194K)

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