I want to be able to create a site for public transport, where the admin can add routes (of different colours) to google maps, so that it outputs similar to this: http://www.birdtheme.org/useful/v3tool.html
Is this possible, and where on earth would I start? I thought one approach would maybe the admin could add a bunch of co-ordinates (instead of the interactive map above), and then the front end google map would ‘join the dots’.