Travel Mapping
Highway Data Discussion => Updates to Highway Data => Topic started by: neroute2 on February 24, 2025, 01:09:38 pm
-
Everything I can find (latest 2018 (https://www.unescap.org/sites/default/files/AH-map_2018-2.pdf)) shows AH1 dipping south between Nanning and Guangzhou, presumably using G75 and G15. To be fair, this is shown as a "Potential Asian Highway Route", but so are many other segments in China.
Also, AH5 appears to use G22 and G70 instead of G30 between Dingxi and Xi'an.
-
The (December 2024 version (https://www.unescap.org/resources/intergovernmental-agreement-asian-highway-network) of the) Asian Highway Agreement says
Pyongyang – Sinuiju – Dandong – Shenyang – Beijing – Shijiazhuang – Zhengzhou – Xinyang – Wuhan – Changsha – Xiangtan – Guangzhou (– Shenzhen) – Nanning – Youyiguan – Huu Nghi – Dong Dang – Ha Noi
Shanghai – Nanjing – Xinyang – Xi’an – Lanzhou – Tulfan – Urumqi – Kuitun – Jinghe – Horgos – Almaty
Neither of these dips are in the document and I took the direct route when drafting. On AH5, Urumqi-Lanzhou is G30, which also goes to Xi'an, so it's odd that the map routes it via different freeways. In absence of anything counteracting the map's route, I agree with moving to G75-G15 and G22-G70 routings.
As for the 'Potential Asian Highway Route' issue - this was resolved in 2019 at the 8th Meeting of the Working Group on Asian Highways (https://www.unescap.org/sites/default/files/AHWG%202019-4E-Report.pdf):
27. The Working Group, in accordance with article 9, paragraph 4, of the Agreement, adopted the amendment proposed by China to change the status of sections that were within the territory of China from potential to actual Asian Highway routes, and to remove the underlining in annex I to the Agreement for AH1, AH3, AH5, AH6, AH31, AH32, AH33, AH34 and AH42. The routes as amended for AH1, AH3, AH5, AH6, AH31, AH32, AH33, AH34 and AH42 are reflected in annex II to the present report.
-
A further reason why I put AH5 on G30 is that the AH34 follows the G30 east of Xi'an - it would be strange that all of G30 would be part of the Asian Highway Network, with the exception of that bit where it takes a parallel route instead.
The newish AH9 route's Chinese section is simply a description of the G30 corridor (oddly AH34 wasn't deleted, but that's common. Even the E581 in Europe, where they effectively greened out the 1s on the signs as it became part of an extended E58, hasn't been removed. Some signs remain, but the route is wholly part of another route now). This makes it even more strange that it's following G22-G70 instead.
Could the line on the continent-wide map be following the pre-freeway equivalent to G30?