Cities are different. Other cities don't learn Shenzhen traffic regulations because cities are different, and each place has its own traffic. Shenzhen, referred to as Pengcheng for short, is a prefecture-level city under the jurisdiction of Guangdong Province. It is a sub-provincial city, a city with separate plans, and a megacity in Guangdong Province. It is also a China Special Economic Zone, a national economic center city, an international city, a scientific and technological innovation center, a regional financial center, and a trade and logistics center approved by the State Council.