Route number S101 refers to where 5

The airport expressway leading to Changshui International Airport in downtown Kunming.

Numbering rules for road routes.

A road route number consists of a road management grade** and a three-digit number.

National highways are numbered in order according to the capital radiation, north-south longitudinal line, and east-west horizontal line

1) The radiation centered on the capital is identified by a one-digit code"1"and two-digit route sequence number;

2) The longitudinal line from north to south is identified by a one-digit code"2"and two-digit route sequence number;

3) The horizontal line from east to west is identified by a digit code"3"and two-digit route numbers.

Provincial highways are numbered in the order of the provincial capital (capital) radial line, north-south longitudinal line, and east-west horizontal line within the boundaries of each province, autonomous region, and municipality directly under the Central Government; Numbering sequence reference bars.

Counties, townships, special highways and other highways shall be compiled in order on the basis of the highway management areas of all provinces, autonomous regions and municipalities directly under the Central Government. All are composed of a three-digit route order; When the sequence number is less than three digits, it is charged in the first position"0"。

Numbered sections: National highways numbered by highway routes are G101 to G199, G201 to G299, G301 to G399;

Provincial highways are S101 to S199, S201 to S299, S301 to S399;

The county and township special roads and their highways are x y z q999.

Description of the numbering structure: G National Highway G1 refers to the capital radial line, G2 refers to the north-south longitudinal line, and G3 refers to the east-west horizontal line.

S Provincial Highway Si refers to the radiation line of the provincial capital (provincial capital), S2 refers to the north-south longitudinal line, and S3 refers to the east-west horizontal line.

x County road number.

y Township road number.

z Dedicated road number.

q Other highway numbers.

S101 on the map refers to Provincial Highway 101, which is the Jinwei Highway from Tianjin to Weichang County, Hebei Province.

Provincial Highway 101 is a trunk road from Tianjin to the northern part of the mountainous area of Jixian County. This provincial highway runs from the Yixingbu overpass of the Tianjin Outer Ring Road in the south to the enclosure of Hebei Province in the north, with a total length of 174 kilometers. It is connected with Beijing-Tianjin-Tang Expressway, Beijing-Tianjin Expressway, Beijing-Shenyang Expressway and 102 National Highway.

X stands for prefectural road and S stands for provincial road.

The first digit of the route number represents the administrative grade of the highway and is indicated by a one-letter identifier. The letter identifier for national highways is G; The letter identifier for the darts is s; The letter identifier for county roads is x; The letter identifier for country roads is y; The letter identifier for village roads is C; The alphabetic identifier for dedicated roads is Z.

The route number of ordinary highways shall be represented by a combination of the letter identifier "G(S X Y C Z)" and the three-digit number. For example: ordinary national highways:

g Provincial Roads: S Roads: Z

The main line numbers of national highways, such as the capital radial line, the north-south longitudinal line, the east-west horizontal line and the regional ring road, shall be represented by a combination of a national highway letter identifier "g" and a digit number "or" with no more than two digits;

The number of the urban ring road, liaison line and parallel line of the national highway shall be represented by a combination of the national highway letter identifier "g" and the two-digit number of the main line "*" and the one-digit sequence number "".

The main line numbers of provincial highways, such as the provincial capital radial line, the north-south longitudinal line, and the east-west horizontal line, shall be represented by a combination of a provincial highway letter identifier "s" and a digit number "or" with no more than two digits; The numbering of the urban ring and liaison lines of the provincial highway should be represented by a combination of a provincial highway letter identifier "S" and a two-digit number.

The highway route numbering section of the national highway is G101 to G199, G201 to G299, G301 to G399;

Provincial roads are S101 to S199

S201 to S299, S301 to S399;

County and township special roads and other highways.

x y z q001 to x y z q999.

In the transportation topic of learning Chinese geography, the numbering structure and the numbering structure of highway routes are as follows:

Numbering structure. G National Highway G1 refers to the capital radial line, G2 refers to the north-south longitudinal line, and G3 refers to the east-west horizontal line.

S Provincial Highway S1 refers to the radiation line of the provincial capital (provincial capital), S2 refers to the north-south longitudinal line, and S3 refers to the east-west horizontal line.

x County road number.

y Township road number.

q Other highway numbers.

Highway route refers to the highway route number specified to ensure its uniqueness in the national information sharing and exchange.

The national highway line** is the national highway line number;

**The structure is a few g.

Provincial highways and sub-provincial highway routes** are composed of the corresponding highway route number and the provincial-level administrative divisions of China in GB 2260**.

Hehe, no matter how detailed it is, you have to look up the book

By the way, you can know it by the number, and the number in the northeast is small and the road number in the south is very large.

You can summarize the rules yourself, roar

Numbering structure, road route numbering structure is as follows:

Numbering structure. G National Highway G1 refers to the capital radial line, G2 refers to the north-south longitudinal line, and G3 refers to the east-west horizontal line.

S Provincial Highway S1 refers to the radiation line of the provincial capital (provincial capital), S2 refers to the north-south longitudinal line, and S3 refers to the east-west horizontal line.

x County road number.

y Township road number.

q Other highway numbers.

There are two paths respectively.

S101 from Qushui Bridge to Shannan, to Naidong End.

S307 from Qushui Bridge to Yanghu to Jiangzi Wan.

Roads are mainly divided into national highways (including national highways trunk lines), provincial roads, county roads, township roads, and village roads according to their administrative levels, and the letters G, S, X, Y, and C correspond to their corresponding identifiers, and the identifiers are numbered with numbers.

Township roads are mainly used for rural production and life services and have been identified as township-level highways, and township roads are represented by Y. The reason why the township road is represented by y is that it should be a county road with the first letter repeated, and the township road is one level lower than the county road, so it is lowered one level backward to take y.

Township road, that is, the township road, the general width is about 5m, is the guarantee of the township to each location, the building material is black asphalt, after heating the flat on the ground, and then use a press to smooth the past, the thickness of about 8cm The township road is mostly built at the junction of each village.

Lu Tongzhi "Lechang County Chronicles" records, Lechang territory to the neighbors of the main 6 township roads: from the county along the west bank of the Wujiang River northbound through Luojiadu to Han Long Temple, Buffalo Bay, to Laoping Shi Chenyi ancient road for the west of the road, Yuan to Zheng two years (1342) the county order Zhang Sizheng digging; From the east of the county seat, through Langtian, Makeng, Shixia to Xiaoyuan in Hunan Province, to Rucheng County for Leru Road; From the county along the east bank of the Wujiang River to the north to the old Ping Stone, for the east of the road, the main book of Song Kui during the Ming Zhengde period; From the county seat to the south, through Changlai, Ankou to Guitou in Ruyuan County, Daqujiang County is Legui Road; From Qingyun Dawuchang to the west, through Sanfengdui (now the old ruins of Huangpu Town), Shixi, Datang, Gantang Town (now Zixi), to Dunyi, Hunan Province (now Liangjie Market); From Huangpu to the north, through the oil shop (in today's Baishi Town), Sanjie Market, to Rucheng County, Hunan Province. In the past, Yunyan, Meihua, Shaping, Xiushui, Laoping, Shiwuyangsi, Shenbu, Sanxi and other places under the jurisdiction of Ruyuan County were not clear.

The name of the regional ring road of the national highway network, the full name is "Regional Ring Expressway", or simply "Ring Expressway". For example, "Hangzhou Bay Area Ring Expressway", referred to as "Hangzhou Bay Ring Expressway". 5.

The name of the urban ring of the national highway network is named after the city, and the full name is "City Ring Expressway", which is referred to as "Ring Expressway". For example, "Shenyang Ring Expressway", referred to as "Shenyang Ring Expressway". 6.

When the starting and ending points of two or more road sections are the same, they will be named "Expressway East (Central and West) Line" or "Expressway North (Central and South) Line" in order from east to west or from north to south. It is referred to as the "High-speed East (Central and West) Line" or "High-speed North (Central and South) Line". 7.

Route names should be spelled in prescribed Chinese characters or Roman letters. The indication of the place name of the starting and ending points of the route should be taken from the single name of the main administrative division where it is located, generally the name of the administrative division above the county level (inclusive). 8.

The north-south longitudinal route starts from the north end of the route and ends at the south end of the route. The east-west transverse route starts at the east end of the route and ends at the west end of the route. The starting point of the radiation is Beijing. Number sequences.

1.Numbering structure: The number of the national highway network consists of alphabetic identifiers and Arabic numerals.

2.Letter identifiers.

National highways are an important part of the national highway network, and the route letter identifier is represented by "g" in Chinese pinyin.

3.Numbers and numeric and alphanumeric numbers.

The radiation of the capital is numbered as a one-digit number, arranged in ascending clockwise order from due north, and the numbering interval is 1 9.

The longitudinal route is numbered with 2 odd digits, arranged in ascending order from east to west, and the numbering interval is 11 89.

Lateral routes are numbered in 2 even digits, in ascending order from north to south, and numbered 10 90.

The numbering of parallel routes is represented by the combination of the English letters "E", "W", "S" and "N" after the main line number; "E", "W", "S", and "N" indicate the east, west, south, and north positions of the parallel route on the main line, respectively.

Because the national highway is G, the provincial road is S, and the county road is X, the rural road cannot be the same as the county road. There are also 26 alphabets, which are xyz, and the next level of x is y, so the country road is represented by y.