{"id":22,"date":"2026-09-16T19:38:31","date_gmt":"2026-09-16T19:38:31","guid":{"rendered":"https:\/\/cityatlas.org\/methods\/?p=22"},"modified":"2026-09-22T22:30:22","modified_gmt":"2026-09-22T22:30:22","slug":"wuhan-1938-and-trains","status":"publish","type":"post","link":"https:\/\/cityatlas.org\/methods\/cities\/wuhan\/wuhan-1938-and-trains\/","title":{"rendered":"Wuhan 1938 and trains"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">I found a stunning set of maps of Wuhan scanned at Stanford. This came shortly after I started to use AllMaps and ArcGIS Pro to keep track of iiif maps that I find of my cities.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The technique works nicely, except that there seems to be a lag between editing the georeferencing on AllMaps and having the image adjust itself afterwards in ArcGIS. In this image, sheet #2 (row 1, column 2) draws in both its previous incorrect position, as well as its correct slot. On the other hand, sheet #27 (second row from the bottom, also column 2), at this scale, draws only in its incorrect position. Advice on the web is slim. ArGIS Pro is supposed to have a flushable cache, but that doesn&#8217;t seem to change anything.<\/p>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Overview of 35 georeferenced maps of Wuhan, 1938<\/summary>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"536\" height=\"738\" fetchpriority=\"low\" src=\"https:\/\/cityatlas.org\/methods\/wp-content\/uploads\/2026\/09\/image.png\" alt=\"\" class=\"wp-image-23\" srcset=\"https:\/\/cityatlas.org\/methods\/wp-content\/uploads\/2026\/09\/image.png 536w, https:\/\/cityatlas.org\/methods\/wp-content\/uploads\/2026\/09\/image-218x300.png 218w\" sizes=\"(max-width: 536px) 100vw, 536px\" \/><\/figure>\n<\/details>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At the same time, visual comparison of contemporary imagery versus the 1930s map is striking. The rail infrastructure of Wuhan has gone through 2 complete generations. The first filled in sometime after this map was created. In the 21st century, the high-speed rails got built on top of many of the original locations, but also strike through previously undeveloped or agricultural lands. Below, a tunnel entrance near a metro maintenance facility is evidence of the cut-and-cover subway line below the road. <\/p>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Subway tunnel entrance. Google Maps base<\/summary>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"696\" height=\"454\" fetchpriority=\"low\" src=\"https:\/\/cityatlas.org\/methods\/wp-content\/uploads\/2026\/09\/thats_a_tunnel.png\" alt=\"\" class=\"wp-image-24\" srcset=\"https:\/\/cityatlas.org\/methods\/wp-content\/uploads\/2026\/09\/thats_a_tunnel.png 696w, https:\/\/cityatlas.org\/methods\/wp-content\/uploads\/2026\/09\/thats_a_tunnel-300x196.png 300w\" sizes=\"(max-width: 696px) 100vw, 696px\" \/><\/figure>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Baidu Ditu overlay of same area showing subway line #3<\/summary>\n<figure class=\"wp-block-image size-full is-style-rounded\"><img decoding=\"async\" width=\"665\" height=\"245\" fetchpriority=\"low\" src=\"https:\/\/cityatlas.org\/methods\/wp-content\/uploads\/2026\/09\/image-2.png\" alt=\"\" class=\"wp-image-26\" srcset=\"https:\/\/cityatlas.org\/methods\/wp-content\/uploads\/2026\/09\/image-2.png 665w, https:\/\/cityatlas.org\/methods\/wp-content\/uploads\/2026\/09\/image-2-300x111.png 300w\" sizes=\"(max-width: 665px) 100vw, 665px\" \/><\/figure>\n<\/details>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>I found a stunning set of maps of Wuhan scanned at Stanford. This came shortly after I started to use AllMaps and ArcGIS Pro to keep track of iiif maps that I find of my cities. The technique works nicely, except that there seems to be a lag between editing the georeferencing on AllMaps and [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":26,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[7],"tags":[],"class_list":["post-22","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-wuhan"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/cityatlas.org\/methods\/wp-content\/uploads\/2026\/09\/image-2.png","_links":{"self":[{"href":"https:\/\/cityatlas.org\/methods\/wp-json\/wp\/v2\/posts\/22","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cityatlas.org\/methods\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cityatlas.org\/methods\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cityatlas.org\/methods\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cityatlas.org\/methods\/wp-json\/wp\/v2\/comments?post=22"}],"version-history":[{"count":3,"href":"https:\/\/cityatlas.org\/methods\/wp-json\/wp\/v2\/posts\/22\/revisions"}],"predecessor-version":[{"id":40,"href":"https:\/\/cityatlas.org\/methods\/wp-json\/wp\/v2\/posts\/22\/revisions\/40"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cityatlas.org\/methods\/wp-json\/wp\/v2\/media\/26"}],"wp:attachment":[{"href":"https:\/\/cityatlas.org\/methods\/wp-json\/wp\/v2\/media?parent=22"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cityatlas.org\/methods\/wp-json\/wp\/v2\/categories?post=22"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cityatlas.org\/methods\/wp-json\/wp\/v2\/tags?post=22"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}