[ioro]

While it's generally not a good idea to try the visa on arrival option when you can't get a normal visa, the transit visa isn't just for transit as such.

"To accelerate the strategy of “Development Driven by Innovation”, sanctioned by the State Council, as of January 30, various ports of entry in Shanghai [...] are to implement a 144-hour visa-exemption transit policy [...] First and foremost, the length of time for visa-exemption stay is extended considerably. With the previous 72 hours doubled, foreign passengers would have ample time to conduct short-term activities such as businesses, sightseeing, visits and exhibitions while in Shanghai."

http://www.sh-immigration.gov.cn/listPageEn.aspx?lx=40&id=44...