Self-driving tour on the Sichuan-Tibet Line is not that simple, but it is not that scary either. Just pay attention to these issues. You need: a high-riding car, a drivers license of more than five years, and 15 days of preparation between April and October. The above holiday Sichuan-Tibet line is only part of a 318 or 317 national highway, so it is naturally possible to travel. In the past few years, tunnels and road surfaces have been treated, and there are almost no places that are too difficult to walk. Only some road sections in Sichuan are bumpy. The roadbed was washed away by flash floods and mudslides at the Sichuan-Tibet junction and has not yet been fully restored. The difficulty lies in the fact that many areas are steep cliffs without guardrails, ranging from the lowest altitude of 500 meters in Chengdu to the highest altitude of 5,013 meters in Mira Mountain. 
Crossing a gap of more than 4,000 meters, the downhill slope of dozens of kilometers is very important for braking control. In addition, traffic encounters and traffic jams often occur, and problems are prone to occur. As for not having a companion and how to arrange the route, my job is to solve this problem. You can contact me. After all, I have hiked once, driven seven or eight times, and some parts of the road more than ten times. It is also the most emotional part for me. Travel itinerary.
If you can't gather enough people, go alone. Its not difficult to pick up people on the Sichuan-Tibet line. As long as its safe, there may be unexpected surprises. Don't delay your goals because of other peoples plans. I went there in August, and the time was just right. Self-driving does not require very high equipment. Without too much preparation, we only encountered two problems: refueling. After entering Tibet, there are far fewer gas stations than in the mainland. You must plan the route and the frequency of refueling. When passing by Gas stations must be filled up. 
If you really run out of oil (we encountered this problem at the time) go to a roadside store and you will find oil sold by the bottle. It is very expensive, unsafe, and the purity is not guaranteed, but it can be used. If you violate the rules and take photos while hiding, you must control your speed. Some roads are in very good condition and the speed limit is 30. If you accidentally exceed the speed limit, you can exceed the speed limit by more than 100%. There are also timed intervals for taking photos. If the speed is not controlled enough, you can get off at the view point in the middle and move around for a while before continuing..
Route arrangement: refer to others, refer to travel agencies, refer to where you want to go. What self-driving pursues is freedom. You can go where you want to go, and you can’t go if you can’t make it in time. I think it’s better to be more casual about the route. In addition, many surprises on the self-driving road come from unexpected routes. For example, if you take the wrong road and stray into the depths of lotus flowers, it feels great. Another tip, when driving into Tibet, you can stay in a scenic spot. When you drive to the entrance of the scenic spot, locals will come to greet you. Living in a B&B in the scenic spot saves a lot of time than outside. You can see the sunrise and sunset scenery and eat authentic food. Hidden meals, no need to rush to the next accommodation place. Moreover, the car can be driven in, so there is much freedom of movement, and the price can be negotiated, so it is not expensive.
