China Expressways National expressways of China are designated with letter G (for 国家高速, guójiā gāosù) followed by 1, 2, or 4 digits. For national expressways, one-digit numbers are used for expressways starting in Beijing. Two-digit odd numbers from G11 to G89 are for north–south long-distance expressways, and even numbers from G10 to G90 are for east–west long-distance expressways. Numbers G91 – G99 denote regional ring routes. Four-digit numbers indicate city ring routes, spur routes and parallel routes. The first two numbers indicates their parent routes, while for the three types of routes, the third digit is 0, an odd number, or an even number, respectively. Provincial city ring routes, spur routes uses two digits. For example, in G1503 (Shanghai Ring Expressway), "15" refers to the G15 Shenyang–Haikou Expressway, which passes through Shanghai, and "0" indicates that the route is a city ring expressway. Provincial expressways are designated with letter S (for 省高速, shěng gāosù) followed by 1 or 2 digits. Similar to the national expressways, one-digit numbers are used for routes starting in the provincial capital. Since 2017, the Chinese route naming standard no longer designates provincial expressways with 4 digit numbers. Non-expressways G, followed by 3 digits, stand for guódào (), or China National Highways. S routes stand for shěngdào (), or provincial roads. Roads 101 – 199 radiates from Beijing (G roads) or the provincial capital (S roads). Roads 201 – 299 are north–south highways. Roads 301 – 399 are east–west highways. Roads 501 – 599 are spur routes. County roads (xiàndào, ) are prefixed with letter X. Township roads (xiāngdào, ) are prefixed with letter Y. Village roads (cūndào, ) are prefixed with letter C. Special roads (zhuānyòng dàolù, ) are prefixed with letter Z. Finland Germany Hong Kong Highways or Routes are numbered 1-10. Routes are also given names (e.g. Tolo Highway) Indonesia Indonesia is an archipelago. For national route numbering, every main island has its own number. For both national routes and toll roads, numbering starts at 1 on every main island and continues to the small surrounding islands. National Route Sign Number: on the top of route number has combination letter "NASIONAL" with background color red, followed by region code each province and number route written on the bottom. Toll Road Sign Number: on the top of route number has combination letter "TOL" with background color red, followed by region code each province and