New Zealand Rail Maps

Category: Otago Central Railway

  • Waiau Branch [1K]: Full aerials added to maps

    One of the changes I am now doing with all the aerial mosaics is to render tiles that contain the full aerial photography for an area so that these full images can be used as part of the maps produced. The full aerial images are mainly of benefit for seeing how a greater area around…

  • MSL Lyttelton-Rolleston [1E]: Christchurch Station 5

    So this has been a lot of work but I now have usable aerial photos of Christchurch, Linwood and Opawa. As I noted previously I chose to extend the limit of the previously drawn maps from Wilsons Road out to the Opawa bridge. This means the total length covered is from just under 9 km,…

  • Otago Central Railway [63C]: Ranfurly-Alexandra 3 (Alexandra-Galloway)

    So I am continuing drafting the maps and there will be a series of posts each taking in a major station and the track from it to the next station. This will be presented in reverse mileage order, the same as I did when I wrote the Observer articles. I am combining this with viewing…

  • Otago Central Railway [63B]: Ranfurly-Alexandra 2

    So a few days break and then it’s time to get going again with the next segment of the maps. In the last couple of days I have fixed the black edges on the LDS aerial backgrounds around Chatto Creek. This constitutes all of the issues needing to be resolved with LDS base imagery. The…

  • Otago Central Railway [63A]: Map Completion – Ranfurly-Alexandra 1

    Well today I published the final set of maps and diagrams for the Alexandra-Cromwell section. They are now available from the Volume 12 Google Plus collection: http://volume12.nzrailmaps.nz The completion of this means I will have a couple of days breather before pushing on with the next section, which is Ranfurly to Alexandra. I hope that…

  • Otago Central Railway [61P]: Alexandra-Cromwell 13

    There having been rather good progress on finishing this section – in spite of having to make some last minute adjustment and re-rendering of the aerial photos of the old Clyde station as well as Alexandra – I expect to churn out the final maps of it tomorrow. There is quite a bit of work…

  • Otago Central Railway [61O]: Cromwell-Alexandra 12

    So the focus right now on the Cromwell-Alexandra section is on three areas: the Cromwell Gorge aerial photography, Clyde yard (both sites) and Alexandra yard. These three aspects are being pushed along more or less simultaneously and as quickly as possible so that the maps can be complete. In relation particularly to the yards, I…

  • Otago Central Railway [61N]: Cromwell-Alexandra 11

    I’m just opening this post with a note about the recently completed and published article series about the Otago Central Railway. There were some issues with editorial changes to the last part of the article. These are being addressed with a Research Note and a Letter to the Editor that will be published in a…

  • Otago Central Railway [61M]: Cromwell-Alexandra 10

    Last time I wrote about the process of fixing up overlap issues in the Linz aerial photography background tiles, specifically with relation to the Cromwell Gorge section of the maps, which is about half of the total distance from Cromwell to Alexandra. The work on that has comprised Steps 1 to 9 out of 10.…

  • Otago Central Railway [61L]: Cromwell-Alexandra 9

    So I am doing the tile merges in Gimp to fix up the tiles that are in two pieces with overlapping black borders so that I can use the latest and greatest quality Linz aerial photography of the entire line. This requires a number of different steps, these are as follows: Find two overlapping tiles…