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Many but not all maps are drawn to a [[Scale (map)|scale]], allowing the reader to infer the actual sizes of, and distances between, depicted objects. A larger scale shows more detail, thus requiring a larger map to show the same area. For example, maps designed for the hiker are often scaled at the [[ratio]] 1:24,000, meaning that 1 of any unit of measurement on the map corresponds to 24,000 of that same unit in reality; while maps designed for the [[motorist]] are often scaled at 1:250,000. Maps which use some quality other than physical area to determine relative size are called [[cartogram]]s. | Many but not all maps are drawn to a [[Scale (map)|scale]], allowing the reader to infer the actual sizes of, and distances between, depicted objects. A larger scale shows more detail, thus requiring a larger map to show the same area. For example, maps designed for the hiker are often scaled at the [[ratio]] 1:24,000, meaning that 1 of any unit of measurement on the map corresponds to 24,000 of that same unit in reality; while maps designed for the [[motorist]] are often scaled at 1:250,000. Maps which use some quality other than physical area to determine relative size are called [[cartogram]]s. | ||
A famous example of a map without scale is the [[Tube map|London Underground map]], which best fulfils its purpose by being less physically accurate and more visually communicative to the hurried glance of the commuter. This is not a cartogram (since there is no consistent measure of distance) but a | A famous example of a map without scale is the [[Tube map|London Underground map]], which best fulfils its purpose by being less physically accurate and more visually communicative to the hurried glance of the commuter. This is not a cartogram (since there is no consistent measure of distance) but a topological map that also depicts approximate bearings. The simple maps shown on some directional [[road sign]]s are further examples of this kind. | ||
In fact, most commercial navigational maps, such as road maps and town plans, sacrifice an amount of accuracy in scale to deliver a greater visual usefulness to its user, for example by exaggerating the width of roads. With the [[end-user]] similarly in mind, cartographers will censor the content of the space depicted by a map in order to provide a useful tool for that user. | In fact, most commercial navigational maps, such as road maps and town plans, sacrifice an amount of accuracy in scale to deliver a greater visual usefulness to its user, for example by exaggerating the width of roads. With the [[end-user]] similarly in mind, cartographers will censor the content of the space depicted by a map in order to provide a useful tool for that user. | ||
