The streets of Shanghai are named after Chinese provinces, cities and counties. The elevated Inner Ring Road, 47.66 kilometers long, surrounds the city proper and links Pudong with Puxi. Another elevated highway runs from south to north through the city's downtown area. The subway Metro Line One runs from the Shanghai Railway Station to Xinzhuang. A multi-tiered traffic network has emerged in Shanghai.
Shanghai is one of China's old industrial bases.
The reform over the past 20 years has injected the city with new vitality. The city's service industry now represents a growing part of Shanghai's economy. Finance and insurance, commerce, real estate, tourism and information represent the key sectors for development. The city's goal is to turn Shanghai into a regional economic and trade center. The Shanghai Stock Exchange and various specialized markets have developed rapidly in Shanghai, which also has the country's largest foreign exchange trading center as well as many foreign banks and insurance companies.