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. Author manuscript; available in PMC: 2015 Jul 15.
Published in final edited form as: Int J Geogr Inf Sci. 2012 Jul 3;27(2):267–291. doi: 10.1080/13658816.2012.678362

Table 3.

Graphic symbology of variables used in the QAV.

Attribute Variable Visual Variable Values Visual symbols
Mode of Transportation Color of path line symbol Walk/bike graphic file with name nihms378160t1.jpg
Motor vehicle graphic file with name nihms378160t2.jpg
Unknown graphic file with name nihms378160t3.jpg
Perception Color of circular point activity space location symbol Home graphic file with name nihms378160t4.jpg
Safe graphic file with name nihms378160t5.jpg
Risky graphic file with name nihms378160t6.jpg
Favorite graphic file with name nihms378160t7.jpg
Religious graphic file with name nihms378160t8.jpg
Important graphic file with name nihms378160t9.jpg
Time of day Symbol attached upper left to location symbol Daytime graphic file with name nihms378160t10.jpg
Nighttime graphic file with name nihms378160t11.jpg
Multiple response graphic file with name nihms378160t12.jpg
Day of week Symbol attached upper left to location symbol Weekday graphic file with name nihms378160t13.jpg
Weekend/holiday graphic file with name nihms378160t14.jpg
Multiple response graphic file with name nihms378160t12.jpg
Length of stay Size of location symbol < 30 min 15
31min - 1hr 25
1 - 2hrs 35
> 2hrs 45
Geographic variables Size of proportional bar symbol attached left to location symbol Continuous