The 1990’s was a decade of change for the Drawing Office with the introduction of computers and sophisticated drawing software. This MicroStation drawing screenshot of the centre of Manchester bears little resemblance to the final map which has yet to be processed. These ‘vector’ elements (lines, arcs, shapes and text) are separated by level, colour, weight and style – a ‘symbology’ which is set using the bespoke A-Z menu on the left. For example, road centre lines create the different road infills while the lines on either side generate road casings – red (A road thick lines) and yellow (B road and minor road fine lines). The impact this method of drawing had on production cannot be overstated with increased accuracy and speed and a significant rise in the number of publications going to print.