1 Difference between TNO and OICA Analysis for M1 Sub Categories 19-21 September 2011 JASIC Informal document GRB-54-16 (54th GRB, 19-21 September 2011,

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Presentation transcript:

1 Difference between TNO and OICA Analysis for M1 Sub Categories September 2011 JASIC Informal document GRB (54th GRB, September 2011, agenda item 3(b))

2 Comparison between TNO and OICA analysis for M1 category TNOOICA NormalOff RoadNormalOff Road M1PMR≤125 kW/t72 dB(A)73 dB(A)72 dB(A)74 dB(A) 125<PMR≤150 kW/t kW/t<PMR7375-

3 10% cut off sound level (TNO data) 10% cut off M1 72dB(A) 10% cut off M1G 74dB(A) TNO analyzed M1 and M1G (off road) separately but PMR is not taken into account.

4 10% cut off sound level (OICA data) M1-A PMR<125 M1-B PMR=125:150 M1-C PMR>150 M1-D Off Road 10% cut off OICA divided M1 into 3 sub categories depending on PMR and analyzed M1 and M1G.

5 90% 0% 20% 40% 60% 80% 100% Lurban, dB(A) 累積頻度, % M1 PMR<125 M1 PMR=125:150 M1 PMR>150 M1 Off Road 10% cut off sound level (re-analyze TNO data) 10% cut off cumulative frequency TNO data were divided into the same sub categories as OICA and re-analyzed. M1-A PMR<125 M1-B PMR=125:150 M1-C PMR>150 M1-D Off Road

6 OICA TNO 10% cut off sound levels in TNO data base are same as those in OICA results in analyzing with same sub categories. 10% cut off cumulative frequency Results of OICA analysis and TNO re-analysis M1-A PMR<125 M1-B PMR=125:150 M1-C PMR>150 M1-D Off Road

7 Summary The results of TNO and OICA are same when the data are analyzed with the same condition. Appropriate condition for analysis should be defined.