Due to the closure of the Mijnbouwstraat and the Sebastiaansbrug, you may have to follow a re-directed route to reach BPO. The re-directions are marked with signs in the city and on the motorways. This situation will last at least untill the beginning of 2020.
Following the signs 'TU-wijk' you can reach BPO at Scheepmakerij 11 via the Rotterdamseweg.
If you are approaching Delft through highway A14 or A13 follow the exits marked with 'TU-campus'. For traffic between the city centre and BPO you can follow the detour along the Kruithuisweg, Prinses Beatrixlaan and Westlandseweg.
For more information please read this website.