A map projection is any method of representing the surface of a sphere or other three-dimensional body on a plane. Map projections are necessary for creating maps. Because it is impossible to accurate...
A geographic coordinate system is a coordinate system that enables every location on the Earth to be specified by a set of numbers and/or letters. The coordinates are often chosen such that one of the...
The Postcode Address File (PAF) is a database which contains all known "Delivery Points" and postcodes in the United Kingdom. Buildings which contain several flats or businesses but only one external ...
The formatting rules for postcodes appear complex at first, but are in fact straightforward. Essentially, every postcode consists of two elements, separated by a space. The outward part of the code co...
The Universal Postal Union (UPU, French: Union postale universelle) is an international organization that coordinates postal policies among member nations, in addition to the worldwide postal system. ...
Postcodes are usually allocated solely forlogisticalconvenience, however there are a few informal exceptions. Britain's constitutional hierarchy is unofficially reflected in the ordering of the follow...