By the end of 2023, there are 200 ordinary national highways in the mainland, with a total mileage of more than 265,000 kilometers, and the dense network of ordinary national highways will closely connect various cities in the mainland, just like the capillaries of the human body, ensuring the efficient, fast and convenient circulation of people and materials between various cities in the mainland, and playing an irreplaceable and important role in promoting the development of the mainland's economy.
The two road network systems of ordinary national roads and national highways constitute the national roads of the mainland, both of which start with the letter G. Ordinary national highways are generally numbered in the form of G+3 Arabic numerals (i.e. GXXX) and are pronounced as XXX national highways (e.g., G318 is pronounced as 318 national highways).
Schematic diagram of the classification of ordinary national highway numbers
This series will focus on China's ordinary national roads, and introduce them in detail from three aspects: basic information, provinces and cities passed, and value significance. At present, the mainland plans to build a total of 200 ordinary national highways. These 200 ordinary national roads are divided into four categories: 12 capital radiation lines, 47 north-south longitudinal lines, 60 east-west horizontal lines, and 81 liaison lines.
In this issue, we will introduce: G509 Jingtang Port - Tongzhou Ordinary National Highway [Tangtong Line]
Basic Information
Jingtang Port - Tongzhou Ordinary National Highway, referred to as Tangtong Line, ordinary national road network number G509. The Tangtong Line is the 9th of the 81 east-west horizontal lines, starting from Jingtang Port in Leting County, Tangshan City, Hebei Province, and ending at the G103 intersection in Tongzhou District, Beijing, and is an important ordinary national road connecting the east and west ends of the Gyeonggi region.
Schematic diagram of the whole line of Tangtong Line
National Highway 509 is 250 kilometers long, and the Tangtong Line runs through 3 provinces and cities including Hebei, Tianjin, and Beijing, passing through 4 administrative regions above the prefecture level, namely Tangshan ~ Tianjin ~ Langfang ~ Beijing.
Tangtong line mileage distribution
Passing through provinces and cities
NO.1 Hebei Province
Transit mileage: 179.0 km
Passing districts and counties: [Tangshan, Langfang]
Tangshan City (Leting County, Luannan County, Fengnan District, Lunan District, Kaiping District, Lubei District, Fengnan District, Fengrun District, Yutian County);
Langfang City (Xianghe County)
Starting and ending points: Jingtang Port, Leting County, Tangshan City, Shijiuwo Town, Hebei and Tianjin Boundary, Qukou Town, Hebei and Tianjin Boundary Xiji Town
Schematic diagram of the direction of the Tangtong Line (East Section of Hebei).
Schematic diagram of the direction of Tangtong Line (western section of Hebei).
NO.2 天津市
Transit mileage: 46.1 km
Passing districts and counties: [Baodi]
Starting and ending point: Tianjin-Hebei boundary Shijiuwo Town, Tianjin-Hebei boundary Qukou Town
Schematic diagram of the direction of Tangtong Line (Tianjin Section).
NO.3 北京市
Transit mileage: 14.4 km
Passing districts and counties: [Tongzhou]
Starting and ending point: G103 interchange, Tongzhou District, Beijing, Xiji Town, Beijing
Schematic diagram of the direction of the Tangtong Line (Beijing Section).
Value significance
The Tangtong Line starts in Leting County, Tangshan City, Hebei Province, and ends in Tongzhou District, Beijing. This ordinary national highway is an important national passage connecting Hebei Province and Beijing City, building a transportation artery for important cities in the east-west direction of the Gyeonggi region (mainly including Tangshan, Tianjin, Langfang, Beijing, etc.), and building a bridge connecting the east-west direction of the Gyeonggi area. At the same time, Tangshan (Jingtang Port) can not only communicate Tongzhou through the Tangtong Line, but also can quickly transfer through other ordinary national roads in the Tongzhou area, and travel to the rest of the country at high speed and efficiently, which plays a vital role in strengthening the communication between Tangshan (Jingtang Port) and Tongzhou and even the rest of the country.
Tang Tong Line
epilogue
The above is some basic information about the Tangtong line, if there are deficiencies and mistakes, welcome to add!