In reality, a bridge's aerodynamic behavior results from the complex interaction of the deck, pylons, and cables. Furthermore, for bridges exposed to wind loads from directions other than perpendicular to the bridge length due to terrain conditions or for bridges with varying deck cross-sections along their length direction, vibrations may occur that cannot be accurately predicted by two-dimensional section model tests. In such cases, wind tunnel testing using a full three-dimensional bridge model is recommended.
During the construction stage, the bridge exhibits dynamic characteristics that are significantly different from those in the completed stage, and these characteristics evolve continuously as construction progresses. As a result, a thorough three-dimensional dynamic stability evaluation is necessary throughout the entire erection process.
Full bridge model tests, like pylon tests, utilize a three-dimensional aeroelastic model that simulates the elastic behavior of the entire bridge structure. 

▣ Aerodynamic stability: Vortex-induced vibration, flutter, galloping
▣ Aerodynamic stability of full-bridge in the erection / completed stage should be considered
▣ Aerodynamic stability of full bridge in various wind directions should be considered
▣ Topography effect should be considered
▣ Effect of construction facilities (eg. Derrick Crane) should be considered
▣ Vibration control methods such as wind cable and TMD should be considered