Test variable A
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Question
A simple test variable that defines a table of sample data and stores it into Opasnet Base?
Answer
Number of Helsinki inhabitants living in areas of traffic noise, per zone and noise source[1]
Result
Data from 2007 strategic noise mapping by the City of Helsinki (calculated from 2006 population and traffic data):
Obs | Indicator | Lower bound (dB) | Upper bound (dB) | Road | Train | Tram | Subway | Aviation | Description |
---|---|---|---|---|---|---|---|---|---|
1 | Lden | 55 | 59 | 87 200 | 10 300 | 11 500 | 5 700 | 500 | |
2 | Lden | 60 | 64 | 88 700 | 3 600 | 18 800 | 3 000 | 0 | |
3 | Lden | 65 | 69 | 46 600 | 2 600 | 13 00 | 900 | 0 | |
4 | Lden | 70 | 74 | 14 900 | 200 | 0 | 0 | 0 | |
5 | Lden | 75 | 100 | 0 | 0 | 0 | 0 | ||
6 | Lden | 55 | 237 500 | 16 700 | 43 400 | 9 600 | 500 | ||
7 | Lnight | 50 | 54 | 90 200 | 5 200 | 17 900 | 4 500 | 0 | |
8 | Lnight | 55 | 59 | 49 900 | 3 000 | 16 800 | 1 700 | 0 | |
9 | Lnight | 60 | 64 | 21 700 | 800 | 1 200 | 0 | 0 | |
10 | Lnight | 65 | 69 | 400 | 0 | 0 | 0 | 0 | |
11 | Lnight | 70 | 0 | 0 | 0 | 0 | 0 | ||
12 | Lnight | 50 | 162 200 | 9 000 | 35 900 | 6 200 | 0 |
Indicator | Lower bound (dB) | Upper bound (dB) | Road | Train | Tram | Subway | Aviation |
Lden | 55 | 59 | 87 200 | 10 300 | 11 500 | 5 700 | 500 |
Lden | 60 | 64 | 88 700 | 3 600 | 18 800 | 3 000 | 0 |
Lden | 65 | 69 | 46 600 | 2 600 | 13 100 | 900 | 0 |
Lden | 70 | 74 | 14 900 | 200 | 0 | 0 | 0 |
Lden | 75 | 100 | 0 | 0 | 0 | 0 | |
Lden | 55 | 237 500 | 16 700 | 43 400 | 9 600 | 500 | |
Lnight | 50 | 54 | 90 200 | 5 200 | 17 900 | 4 500 | 0 |
Lnight | 55 | 59 | 49 900 | 3 000 | 16 800 | 1 700 | 0 |
Lnight | 60 | 64 | 21 700 | 800 | 1 200 | 0 | 0 |
Lnight | 65 | 69 | 400 | 0 | 0 | 0 | 0 |
Lnight | 70 | 0 | 0 | 0 | 0 | 0 | |
Lnight | 50 | 162 200 | 9 000 | 35 900 | 6 200 | 0 |
Rationale
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