For simplicity, we will list the commands and the information we receive as we walk around a large block. Describe this intersection in more detail. Although these are interesting questions to be able to ask,there is another realm of information we need to use. One of the most valuable capabilities of Atlas Speaks is its ability to add information of special interest to the map database. Together, overlays and paths turn a map database into a personalized orientation tool that emphasizes the interests of the individual using the system.
Overlays are groups of points of interest.
A point of interest is a location on the map with associated text information. Examples include home, work, a friend's home and an important subway entrance. Together, these points of interest add value to a standard area map by making it easy to locate places that are important. We see these overlays becoming important units of shared information among users. One overlay might be all bus stops in a city or area.