Need to tag rail for 'routing'How can I create a custom and modified map version to visualize train routes?

Hey all, I have been tasked to find a open source map that will allow me to 'tag' sections of rail with a 'route', and Openstreetmap looks amazing for this however I have fallen at the first hurdle :(. How I want to go about it is have the rail sections you already have with 'route codes' so for instance a route between Doncaster ~ Peterborough maybe one code for example called DD2PB but I dont want to have to do this as an 'area' section as that would take a age and a half to route as I have to be zoomed in so much to be able to edit in the first place it would take me just as long to draw the map myself lol. Any ideas? Thank you in advanced all. EDIT Update: Hey all, I thought the saves were local so I can completely remap if needed, as some of the rail routes are 'off' to what they should be. More info relating to what I want to do: I want to be able to change the 'standard' rails that are already in place and change them to reflect train links between two locations, some of these will be big distances like going from "Doncaster to Peterborough" and this would be coded "DD2PB" allowing a 'train driver' or someone that wishes to know what route a train takes can just simply be told "Oh you need to look up route : DD2PB" they would then be able to look at the map and view the route. I need to do this for around 1000 routes for my boss who works closely with train companies. I would ideally like to change the 'colour' and add a 'text tag' to the routes I wish to change to make it easier to see when 'zoomed out'. Or even just 'highlighting' a section with a text tag. Also can this confirmed that any changes I make while logged into my account will be for my 'local' version of "Openstreetmap" and not the 'global' one? If not how do I do this so I can completely change my version and not affect everyone else. JB

personalrailway route railscustom