Figure 3From: A suite of methods for representing activity space in a healthcare accessibility studyExample of the road network buffer (RNB) measure. This is the activity space of the same respondent as represented using the RNB measure. This activity space captures a different set of primary care opportunities based travel patterns structured by road networks. It also eliminates the excess space captured by the SDEs. However, the actual health destination is still outside of the activity space.Back to article page