Research: response to crit

To further develop my wayfinding system I've responded to feedback given by looking into topographic maps and sonar waves in order develop the use of waved lines within my pictograms. 

Topographic Maps:
Topographic maps are two-dimensional diagrams of a three-dimensional section of the earths surface. Contour lines within the map are used to represent the surface of the earth allowing both horizontal distance and vertical elevation to be measure. The distance between contour lines are used to represent different things as if the lines are closely spaced they represent a steep slow and those which are further apart represent a steady slope. In order to keep topography maps simple, elevation is only documented at certain points on the map.


Sonar Waves: 
Active Sonar:
Traducers emit sound waves into water, if an object is in the water the sound waves will bounce of and return as an echo to the transducer which then measures the strength of the signal by measuring the time from the emission of the sound pulse to its reception. By doing this the transducer can determine the size an orientation of an object.
Passive sonar:

Mainly used to detect sound from marine objects such as submarines and ships as well as animals such as whales. Unlike active sonar passive sonar doesn't emit its own sound waves but listens to those coming towards it. In addition passive sonar can't detect the the range of an object unless its used with a passive listening device or with multiple passive sonar devices.

Although the use of sonar is interesting to me, its impractical for my wayfinding system as its based on land, meaning the use of sonar may not be possible as well as the lack of access to a sonar device. Therefor I plan to explore the use of topography lines within my pictograms by incorporating the distance from each shop to the print festival in a similar way to the use of elevation within topographic maps.