How to change termianals in Shanghai Pudong airport? URGENT.?

Please make sure you go to the right terminal building. Special roadway and buses are accessible for the convenience of shuttling between T1 and T2. Passenger can go through the three long corridors between them. These regular buses depart every 10 minute and take about 5 minutes from one building to the other. They can be found at Exit 1 of the domestic and Exit 8 of the international departure levels in T1 and Exit 23 of the international and Exit 27 of the domestic departure levels in T2. Operating hours range from 06:00 to 21:00. In addition, passengers can get into T2 via the connecting porch for Maglev trains. For those who drive by themselves or take taxis, they can get to T2 though A20 Expressway, A1 (Yingbin Dadao) and then Shanghai North-South Elevated Freeway.