*View of interchange at Dosan Park 4 in Seoul                               Link to Typical application of BT  

*Lane arrangement on the interchange

*View of interchange for a look 

                                                     Traverse : 2 lanes × 2 floors,  Pass : 1 lane × 2 floors   

*Interchange detail structure

 

*Comparison of interchange size

                  Interchange of BT can economize it's establish area 22 times than cloverleaf type interchange in urban area.      

*Fitable small size for narrow urban area!!