Thirty-two countries have signed agreements allowing the motorway to cross the continent and reach Europe. Some of the countries participating in the highway project are India (Look East connectivity projects), Sri Lanka, Pakistan, China, Iran, Japan, South Korea, NEPAL and Bangladesh.  Most of the funds come from more advanced Asian countries such as Japan, India, Taiwan, South Korea and China, as well as international agencies such as the Asian Development Bank. The horizontal orientation of the road must correspond to the topography of the terrain through which it passes. Minimal turn beams should only be used if necessary and used in combination with transition curves. Composite curves should be avoided where possible. The minimum rays of horizontal curves are shown in Table 5 for each highway class. The advanced motorway network would increase trade and social interactions between Asian countries, including personal contacts, project capitalizations, connections of large container terminals with transport points and the promotion of tourism through new routes.  In accordance with Article 6, road signs corresponding to those described in Appendix III of this agreement should be installed for the State concerned on all lines of the Asian motorway network within five (5) years from the date of entry into force of this agreement. After the AH1 and the AH5 from Tokyo (the widest point of the eastern motorway network) to Istanbul (the most westerly), they travelled a total of 12089 km before entering the European motorway network for an additional 3259 km.
The lines of the Asian highway network should be indicated by the traffic sign described in Schedule III of this agreement. Construction speeds of 120, 100, 80, 60, 50, 40 and 30 kilometres per hour will be used. The relationship between design speed, highway classification and land classification is shown in Table 3. A construction speed of 120 km/h should only be used for the primary class (access highways) which has central bands and separate junctions. Sets of two- and three-digit route numbers are assigned to indicate routes within sub-regions; including links with a neighbouring sub-region and the following motorway routes within Member States: Recalling cooperation between members of the UN Economic and Social Commission for Asia and the Pacific in the development and implementation of the Asian motorway network, it provides a framework for the coordinated development of international motorways in Asia, as well as between Asia and Europe, by providing Member States with a platform to examine technical and institutional issues aimed at improving network quality and improving network efficiency. The Asian Highway Network (AH), also known as the Great Asian Highway, is a cooperation project between Asian and European countries and the United Nations Economic and Social Commission for Asia and the Pacific (ESCAP) to improve motorway systems in Asia. It is one of the three pillars of the Asian Land Transport Infrastructure Development (ALTID) project, approved by the ESCAP Committee at its 48th session in 1992, which includes the Asian Highway, the Trans-Asian Railway (TAR) and the Facilitation of Land Transport Projects. The planned network covers a total of 140,479 kilometres.
Lines of the Asian motorway network should be brought into line with the classification and design standards outlined in Schedule II of this agreement.