By Car
Coming from Dortmund (A 2 eastbound): Exit the motorway at the "Braunschweig-Watenbüttel" exit, then follow the signs going towards "Braunschweig" until you get to "Watenbüttel".
Coming from Berlin (A 2 westbound): At the interchange "Braunschweig-Nord", take the A 391 towards Kassel and exit the motorway at "Braunschweig-Lehndorf".
Coming from Kassel (A 7 northbound) and from Salzgitter (A 39 northbound): Coming from Kassel, take the A 39 towards Berlin/Braunschweig at the "Salzgitter" interchange, then change onto the A 391 at the "Braunschweig-Südwest" interchange and exit at "Braunschweig-Lehndorf".
Follow the signs to PTB.
By plane
From Hanover Airport to Hanover Main Station. Continue your journey by train to Braunschweig main station (ICE, IC and RE train connections).
From Berlin-Tegel Airport or Berlin-Schönefeld to Berlin Main Station. Continue to Braunschweig main station by train or by long-distance bus ( ICE, IC und RE connections).
From Frankfurt- Rhein Main. Continue to Braunschweig main station by train or by long-distance bus.
By Train/Long distance bus
The long-distance bus station is located right next to Braunschweig Main Station (with an ICE train stop).
Take the bus 461 to P.T.B.