Definition and background
12.1.1
BS7666-1-2006 stipulates two types of cross-reference, however, only one type is used in the NSG, to relate Streets to ESUs. This type is known in BS7666-1-2006 as a ‘type 2 cross-reference’, but in this Reference Manual, DEC-Streets, it is simply referred to as a ‘cross-reference’ to avoid confusion.