Why is there a big traffic jam in Tanggula?

1From October 28th, heavy snowfall occurred in Tanggula Mountain area of 109 National Highway, and the road surface was severely frozen. Some heavy vehicles can't start because of the slippery road surface and the low fuel label of some vehicles, which leads to the blockage of the national highway 109 Tanggula Mountain section.

It is reported that Tanggula Mountain is more than 5,000 meters above sea level and the temperature is around minus 20 degrees Celsius. Because of being trapped for a long time, many drivers use the oil in the fuel tank to keep warm, and many people lack food. Tibet and Qinghai quickly launched emergency plans for traffic safety management in bad weather, organized rescue forces, diverted road traffic and rescued trapped people.

As of 1 1, 1, 19, the blocked section is 62 kilometers long, with about 900 vehicles, and 1300 people are on the blocked section. Among them, more than 16 km and 180 vehicles were stranded on the south side of Tanggula Mountain, and more than 46 km and 700 vehicles were stranded on the north side of Tanggula Mountain. A Shandong truck driver who entered Tibet died on 14 after being sent to Yanshiping Town Health Center due to severe altitude sickness 1.

1 65438+1October1Sunday night, official website, Xizang Autonomous Region Communications Department, issued a traffic warning: vehicles blocked by snow in Tanggula Mountain section of National Highway 109 can pass in one direction. According to the information, on June 30th 10, the transportation department of Tibet launched an emergency rescue plan task force and rushed from Lhasa to the blocked road section overnight. The Qinghai-Tibet Branch of the Highway Bureau of the Autonomous Region rushed from Golmud to the blocked section overnight to carry out on-site command and rescue work. In addition, highway maintenance departments put mechanical vehicles into spraying anti-skid materials and snow melting agents on icy sections, and sent gasoline, diesel oil and firewood to traffic jams to help drivers start anchored vehicles, distribute bread, instant noodles, mineral water, boiled water and butter tea to trapped drivers and passengers, and provide oxygen and anti-altitude sickness drugs.

By1October 2 165438+ 17, the congested vehicles on K33 16-K3325 section of National Highway 109 (Tanggula Mountain section) had been driven slowly towards Golmud and Lhasa, respectively, under the guidance of highway maintenance personnel and public security traffic police. In order to avoid traffic congestion again, traffic control in Yanshiping and Amdo counties is still in progress and will be lifted in due course depending on the subsequent traffic conditions. It is expected that all congested road sections will be cleared tonight.

It is understood that the reason for the detention is mainly due to the fact that most drivers entered Tibet for the first time and were unfamiliar with the road conditions on the plateau. The vehicle uses "No.0" diesel, and the low temperature causes the vehicle oil circuit to freeze. (1 day) The highest temperature in Tanggula section of National Highway 109 is 3 degrees during the day, and the lowest temperature is about-12 degrees. It is recommended that diesel vehicles use at least "minus 20" diesel.

At present, the road is clear, and everyone has passed this road safely.