Map communication model

Map Communication Model

Although this was a postwar discovery, the MCM has its roots in information theory developed in the telephone industry before the war began. Mathematician, inventor, and teacher Claude Shannon worked at Bell labs after completing his Ph.D. at the Massachusetts Institute of Technology in 1940. Shannon applied mathematical theory to information and demonstrated that communication could be reduced to binary digits (bits) of positive and negative circuits. This information could be coded and transmitted across a noisy interface without losing any meaning. Once the information was received it was then decoded by the listener; the integrity of the information remained intact. In producing meaningful sounds that could be measured for quality, Shannon produced the beginning of information theory and digital communication through circuits of on and off switches.

Shannon developed his ideas more thoroughly in the 1940s at the same time that Cartographer Arthur Robinson was returning from the Second World War when he had served as cartographer for the military. During the war, Robinson found that cartographers were significantly limited because artists could make more effective maps than geographers Upon returning from the war, Robinson worked to remedy this problem at Ohio State University where he was a graduate student. His The Look of Maps emphasizes the importance of lettering, map design, map structure, color, and technique.

Information theory helped turn the map into a medium of communicating information. Although Robinson never articulated a map model that could govern the new scientific pursuit of maps, his role in the war led to an understanding of the practical need for maps based on science not art. Robinson opened the door for others to apply Shannon’s “Mathematical Theory of Communication” to the design of maps. British Geographer Christopher Board developed the first MCM in 1967 but it was cumbersome and poorly measured a map’s information quality. The Czech Geographer Kolácný’s 1969 version made several key improvements to Board’s model. These versions of the MCM helped cartographers realize the problems that Robinson noted as a war cartographer and helped articulate the discipline in terms of science.