I'll arrive shanghai at pudong airport on 31st October 11 a.m. I need go to taizhou(jiangsu) by bus.

Both SH General Long-distance Bus Station and South Long-distance Bus Station have buses to the city.
General Long-distance Bus Station: Schedules after 11:00 are 11:10, 12:30, 13:30, 14:30...Distance fom airport is about 30 miles. You can take airport shuttle bus line 5 to SH Railway Station, and then walk to the nearby general bus station.
South Long-distance Bus Station: Schedules after 11:00 are 11:49, 13:25, 14:15, 15:25... Distance from airport is about 27 miles. You can take airport shuttle bus line 7 to SH South Railway Station, then walk there.