Environmental Engineering Reference
In-Depth Information
R = receptor point .
S = point on the line source
U = mean wind vecto .
WD = mean wind direction.
α 1 an α2 = view angles
.
x, y = coordinates with origo at
the center, x parallel and y
perpendicular the line source
R(x,y)
U
WD
α1
α2
S(x,0)
Fig. 1 Illustration of a finite line source - receptor point geometry
3.5 + 3.5 m
To Oslo
Average peak traffic volume
3-4000 vehicles per hour
To Oslo: Morning / From Oslo: Afternoon
Heavy duty vehicles (L > 5.6 m): 4 -14 %
5.4 m
1
2 +M
3
7.3 m
16.8 m
B
46.8 m
M = Met. mast with Wind speed
and direction (10 m) + Temp. &
Temp. difference (10 -2 m)
From Oslo
3.5 + 3.5 m
Fig. 2 The monitoring site Nordbysletta. The road is oriented approximately 60° due north
 
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