"Map taken from City of Portsmouth publication "Public Transport Maps"
Figure 01 - Example 1: Poles Both Sides of the Road with One Landmark
In Figure 01, there are two stops, on either side of the road in a small town, 'Cosham', with the 'Health Centre' as the nearest landmark.
Figure 02 shows the stop hierarchy - with the single stop area and the pair of stops.
Figure 02 - Example 1: Stop Hierarchy for Cosham Health Centre