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     As an example for the rural options, Equations (1‑34) and (1‑37) can be combined to derive the vertical virtual distance xz for a squat building.  First, it follows from Equation (1‑37) that the enhanced σz is equal to 1.2hb at a downwind distance of 10hb in meters or 0.01hb in kilometers.  Thus, xz for a squat building is obtained from Equation (1‑34) as follows:

where the stability‑dependent constants a and b are given in Table 1‑2.  Similarly, the vertical virtual distance for tall buildings is given by:

For the urban option, xz is calculated from solutions to the equations in Table 1‑4 for σz = 1.2hb or σz = 1.2 hw for tall or squat buildings, respectively.

 

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  APLICACIONES castellano: DIS CUS DES  RAD   english: DIS CUS DES RAD  

 

 português: DIS CUS DES RAD   italiano:   DIS CUS  DES RAD

 

français:  DIS CUS DES RAD