For design purpose of long or tall structures such as suspension bridges or skyscrapers, knowledge on the transversal or vertical as well as longitudinal turbulent structure of wind is indispensable. The cross spectrum, coherence and phase of turbulence in shear flow fields are estimated based on the theoretical arguments. They are shown to compare well with experiments on gusty winds. F(e,n, w)=I Ruu(w,n;r) exp (-iwr)dr On the other hand, the Taylor hypothesis on the so-called frozen turbulence states that Ruu(e, r), z) may be approximated by