How long is the fastest and best plan from Pinggu to changping line Life Science Park Station?

Bus route: express 9 18 → subway 13 → subway changping line, the whole journey is about 109.3km? Four hours.

1. Walk about 250 meters from Pinggu District and arrive at Pinggu District Government Station.

2. Take Express 9 18, pass 28 stops and arrive at Dongzhimenwai Station.

3. Walk about 480 meters and arrive at Dongzhimen Station.

4. Take the subway 13 line, pass 10 station and arrive at Xierqi Station.

5. Take the subway to changping line, pass 1 station and arrive at Life Science Park Station.