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Federal Highway Administration Research and Technology
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REPORT |
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Publication Number: FHWA-HRT-13-090 Date: April 2016 |
Publication Number: FHWA-HRT-13-090 Date: April 2016 |
Data available in LTPP SDR 24 LTAS database table MM_AX were used to construct monthly NALS and conduct temporal consistency and outlier analysis. Results of this analysis, including the automated and manual checks, are presented in the following two tables.
State Code | SHRP ID | Year | Month | Automatic Filtering of Potential Outliers (Statistical Checks) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Excessive Cumulative Absolute Difference in NALS | Significant Shift in Monthly Peak Loads | ||||||||||||
Single 9 | Single 9 Heavy | Tandem 9 | Tandem 9 Heavy | Number of Failed Tests |
Single 9 | Single 9 Heavy | Tandem 9 Light | Tandem 9 Heavy | Number of Failed Tests |
||||
4 | 0100 | 2007 | 10 | Y | 1 | ||||||||
4 | 0100 | 2007 | 11 | Y | 1 | ||||||||
4 | 0100 | 2007 | 12 | Y | Y | Y | Y | 4 | |||||
4 | 0100 | 2008 | 1 | Y | Y | Y | 3 | ||||||
5 | 0200 | 2008 | 6 | Y | 1 | Y | 1 | ||||||
5 | 0200 | 2008 | 8 | Y | Y | 2 | Y | 1 | |||||
5 | 0200 | 2008 | 10 | Y | Y | 2 | Y | 1 | |||||
5 | 0200 | 2008 | 11 | Y | Y | 2 | Y | Y | 2 | ||||
5 | 0200 | 2008 | 12 | Y | Y | 2 | Y | Y | 2 | ||||
8 | 0200 | 2006 | 4 | Y | 1 | ||||||||
8 | 0200 | 2006 | 5 | Y | 1 | ||||||||
8 | 0200 | 2006 | 6 | Y | 1 | ||||||||
8 | 0200 | 2007 | 11 | Y | Y | Y | 3 | ||||||
8 | 0200 | 2007 | 12 | Y | Y | Y | Y | 4 | |||||
8 | 0200 | 2008 | 1 | Y | Y | Y | Y | 4 | |||||
8 | 0200 | 2008 | 2 | Y | Y | Y | Y | 4 | |||||
8 | 0200 | 2008 | 3 | Y | Y | 2 | |||||||
8 | 0200 | 2008 | 4 | Y | Y | 2 | |||||||
8 | 0200 | 2009 | 5 | Y | 1 | ||||||||
12 | 0100 | 2004 | 1 | Y | Y | 2 | |||||||
12 | 0500 | 2004 | 4 | Y | 1 | ||||||||
12 | 0500 | 2004 | 12 | Y | 1 | ||||||||
12 | 0500 | 2005 | 1 | Y | 1 | ||||||||
12 | 0500 | 2005 | 7 | Y | 1 | Y | Y | 2 | |||||
12 | 0500 | 2005 | 8 | Y | 1 | ||||||||
12 | 0500 | 2005 | 9 | Y | 1 | ||||||||
12 | 0500 | 2005 | 10 | Y | 1 | ||||||||
12 | 0500 | 2005 | 11 | Y | 1 | ||||||||
12 | 0500 | 2005 | 12 | Y | 1 | ||||||||
12 | 0500 | 2006 | 1 | Y | 1 | ||||||||
12 | 0500 | 2006 | 2 | Y | 1 | ||||||||
12 | 0500 | 2006 | 3 | Y | 1 | ||||||||
12 | 0500 | 2006 | 4 | Y | 1 | Y | Y | 2 | |||||
12 | 0500 | 2006 | 5 | Y | 1 | ||||||||
12 | 0500 | 2006 | 6 | Y | 1 | ||||||||
12 | 0500 | 2006 | 7 | Y | 1 | ||||||||
12 | 0500 | 2006 | 8 | Y | 1 | ||||||||
2 | 0500 | 2006 | 12 | Y | 1 | ||||||||
12 | 0500 | 2007 | 2 | Y | 1 | Y | Y | 2 | |||||
12 | 0500 | 2007 | 3 | Y | 1 | Y | 1 | ||||||
12 | 0500 | 2007 | 4 | Y | 1 | ||||||||
22 | 0100 | 2008 | 1 | Y | 1 | ||||||||
23 | 0500 | 2008 | 12 | Y | 1 | ||||||||
23 | 0500 | 2009* | 1 | Y | Y | 2 | |||||||
24 | 0500 | 2008 | 6 | Y | 1 | ||||||||
24 | 0500 | 2008 | 7 | Y | 1 | ||||||||
26 | 0100 | 2007 | 8 | Y | 1 | ||||||||
26 | 0100 | 2007 | 9 | Y | 1 | ||||||||
26 | 0100 | 2008 | 2 | Y | Y | 2 | |||||||
26 | 0100 | 2008 | 4 | Y | 1 | ||||||||
26 | 0100 | 2009 | 1 | Y | Y | Y | Y | 4 | |||||
26 | 0100 | 2009 | 2 | Y | Y | Y | Y | 4 | |||||
26 | 0100 | 2009 | 3 | Y | Y | Y | Y | 4 | |||||
26 | 0100 | 2009 | 4 | Y | Y | Y | Y | 4 | |||||
27 | 0500 | 2006 | 11 | Y | 1 | ||||||||
27 | 0500 | 2008 | 5 | Y | Y | Y | Y | 4 | |||||
27 | 0500 | 2008 | 6 | Y | 1 | ||||||||
27 | 0500 | 2009 | 2 | Y | 1 | ||||||||
27 | 0500 | 2009 | 3 | Y | 1 | ||||||||
27 | 0500 | 2009 | 4 | Y | 1 | ||||||||
35 | 0100 | 2008 | 6 | Y | Y | 2 | |||||||
35 | 0100 | 2008 | 7 | Y | Y | 2 | |||||||
35 | 0100 | 2008 | 8 | Y | Y | 2 | |||||||
35 | 0500 | 2008 | 6 | Y | 1 | ||||||||
35 | 0500 | 2008 | 7 | Y | 1 | ||||||||
39 | 0100 | 2004 | 5 | Y | Y | 2 | |||||||
39 | 0100 | 2004 | 6 | Y | 1 | ||||||||
39 | 0100 | 2004 | 7 | Y | Y | 2 | |||||||
39 | 0100 | 2004 | 8 | Y | 1 | ||||||||
39 | 0100 | 2004 | 9 | Y | 1 | ||||||||
39 | 0100 | 2004 | 10 | Y | 1 | ||||||||
39 | 0100 | 2004 | 11 | Y | 1 | ||||||||
39 | 0100 | 2004 | 12 | Y | 1 | ||||||||
39 | 0200 | 2004 | 10 | Y | 1 | ||||||||
39 | 0200 | 2004 | 11 | Y | Y | Y | Y | 4 | |||||
39 | 0200 | 2004 | 12 | Y | Y | Y | Y | 4 | |||||
48 | 0100 | 2006 | 1 | Y | Y | Y | Y | 4 | |||||
48 | 0100 | 2006 | 2 | Y | Y | Y | Y | 4 | |||||
48 | 0100 | 2006 | 3 | Y | Y | Y | Y | 4 | |||||
48 | 0100 | 2006 | 4 | Y | Y | Y | Y | 4 | |||||
48 | 0100 | 2008 | 2 | Y | Y | Y | Y | 4 | |||||
55 | 0100 | 2008 | 4 | Y | 1 | ||||||||
55 | 0100 | 2008** | 12 | Y | 1 | ||||||||
Number of Months Excluded | 70 | 22 | |||||||||||
Percentage of Months Excluded | 9 | 3 |
*Class 10 tridems have very high percentage of lightly loaded trucks (34 percent for 0-11,999 lb and 39 percent for 12,000-14,999 lb). This could be evidence r possible misclassification. Tridems will not be used for defaults.
**There is a peak shift in winter months for single and tandem axles class 9 load spectra. Sensor temperature sensitivity or calibration issues should be checked. December 2008, February 2008, January 2008, and January 2009 have a shifted peak (9,000 lb) in the single axle class 9 plot.
Note: Blank cells indicate no instances were identified.
State Code | SHRP ID | Year | Month | Manual Review for Reasonableness and Consistency (Manual Checks) | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Load Peaks Outside Typical Range for the Site | Load Peaks Outside Typical Range for Class 9 | Cumulative Percent of Overloads > Typical Upper Range for a Site |
Cumulative Percent of Overloads > Typical Upper Range for Class 9 |
|||||||||
Single 9 (Steering) | Tandem 9 Heavy | Number of Failed Tests |
Typical Peak for Single 9 (9,000- 13,000 lb) | Typical Peak for Tandem 9 (26,000-34,000 lb) | Number of Failed Tests | Single 9 | Tandem 9 | Single 9 | ||||
4 | 0100 | 2007 | 10 | Y | 1 | |||||||
4 | 0100 | 2007 | 11 | Y | 1 | |||||||
4 | 0100 | 2007 | 12 | Y | Y | 2 | ||||||
4 | 0100 | 2008 | 1 | Y | 1 | Y | ||||||
5 | 0200 | 2008 | 6 | Y | Y | 2 | Y | 1 | ||||
5 | 0200 | 2008 | 8 | Y | Y | 2 | ||||||
5 | 0200 | 2008 | 10 | Y | Y | 2 | Y | 1 | ||||
5 | 0200 | 2008 | 11 | Y | Y | 2 | Y | Y | 2 | |||
5 | 0200 | 2008 | 12 | Y | Y | 2 | Y | Y | 2 | |||
8 | 0200 | 2006 | 4 | Y | Y | 2 | ||||||
8 | 0200 | 2006 | 5 | Y | 1 | |||||||
8 | 0200 | 2006 | 6 | Y | 1 | |||||||
8 | 0200 | 2007 | 11 | Y | 1 | |||||||
8 | 0200 | 2007 | 12 | Y | 1 | |||||||
8 | 0200 | 2008 | 1 | Y | 1 | Y | ||||||
8 | 0200 | 2008 | 2 | Y | 1 | |||||||
8 | 0200 | 2008 | 3 | Y | 1 | |||||||
8 | 0200 | 2008 | 4 | Y | 1 | |||||||
8 | 0200 | 2009 | 5 | Y | 1 | |||||||
12 | 0100 | 2004 | 1 | Y | 1 | |||||||
12 | 0500 | 2004 | 4 | Y | 1 | Y | 1 | |||||
12 | 0500 | 2004 | 12 | Y | 1 | Y | ||||||
12 | 0500 | 2005 | 1 | Y | 1 | Y | ||||||
12 | 0500 | 2005 | 7 | Y | 1 | Y | ||||||
12 | 0500 | 2005 | 8 | Y | 1 | Y | ||||||
12 | 0500 | 2005 | 9 | Y | 1 | Y | ||||||
12 | 0500 | 2005 | 10 | Y | 1 | Y | ||||||
12 | 0500 | 2005 | 11 | Y | 1 | Y | ||||||
12 | 0500 | 2005 | 12 | Y | 1 | Y | ||||||
12 | 0500 | 2006 | 1 | Y | 1 | Y | ||||||
12 | 0500 | 2006 | 2 | Y | 1 | Y | ||||||
12 | 0500 | 2006 | 3 | Y | 1 | Y | ||||||
12 | 0500 | 2006 | 4 | Y | 1 | Y | ||||||
12 | 0500 | 2006 | 5 | Y | 1 | Y | ||||||
12 | 0500 | 2006 | 6 | Y | 1 | Y | ||||||
12 | 0500 | 2006 | 7 | Y | 1 | Y | ||||||
12 | 0500 | 2006 | 8 | Y | 1 | Y | ||||||
12 | 0500 | 2006 | 12 | Y | 1 | Y | ||||||
12 | 0500 | 2007 | 2 | Y | 1 | Y | ||||||
12 | 0500 | 2007 | 3 | Y | 1 | Y | ||||||
12 | 0500 | 2007 | 4 | Y | 1 | Y | ||||||
22 | 0100 | 2008 | 1 | |||||||||
23 | 0500 | 2008 | 12 | Y | Y | 2 | ||||||
23 | 0500 | 2009* | 1 | Y | Y | 2 | ||||||
24 | 0500 | 2008 | 6 | Y | 1 | Y | ||||||
24 | 0500 | 2008 | 7 | Y | ||||||||
26 | 0100 | 2007 | 8 | Y | Y | 2 | ||||||
26 | 0100 | 2007 | 9 | Y | Y | 2 | ||||||
26 | 0100 | 2008 | 2 | Y | Y | 2 | Y | Y | 2 | |||
26 | 0100 | 2008 | 4 | Y | Y | 2 | ||||||
26 | 0100 | 2009 | 1 | Y | Y | 2 | Y | Y | 2 | |||
26 | 0100 | 2009 | 2 | Y | Y | 2 | Y | Y | 2 | |||
26 | 0100 | 2009 | 3 | Y | Y | 2 | Y | Y | 2 | |||
26 | 0100 | 2009 | 4 | Y | Y | 2 | Y | Y | 2 | |||
27 | 0500 | 2006 | 11 | Y | Y | 2 | ||||||
27 | 0500 | 2008 | 5 | Y | Y | 2 | ||||||
27 | 0500 | 2008 | 6 | Y | Y | 2 | ||||||
27 | 0500 | 2009 | 2 | Y | Y | 2 | Y | |||||
27 | 0500 | 2009 | 3 | Y | Y | 2 | ||||||
27 | 0500 | 2009 | 4 | Y | Y | 2 | ||||||
35 | 0100 | 2008 | 6 | Y | Y | 2 | ||||||
35 | 0100 | 2008 | 7 | Y | Y | 2 | ||||||
35 | 0100 | 2008 | 8 | Y | Y | 2 | ||||||
35 | 0500 | 2008 | 6 | Y | Y | 2 | ||||||
35 | 0500 | 2008 | 7 | Y | Y | 2 | ||||||
39 | 0100 | 2004 | 5 | Y | 1 | |||||||
39 | 0100 | 2004 | 6 | Y | 1 | |||||||
39 | 0100 | 2004 | 7 | Y | 1 | |||||||
39 | 0100 | 2004 | 8 | Y | Y | 2 | ||||||
39 | 0100 | 2004 | 9 | Y | 1 | |||||||
39 | 0100 | 2004 | 10 | Y | 1 | |||||||
39 | 0100 | 2004 | 11 | Y | 1 | |||||||
39 | 0100 | 2004 | 12 | Y | 1 | |||||||
39 | 0200 | 2004 | 10 | Y | Y | 2 | ||||||
39 | 0200 | 2004 | 11 | Y | Y | 2 | ||||||
39 | 0200 | 2004 | 12 | Y | 1 | |||||||
48 | 0100 | 2006 | 1 | Y | Y | 2 | Y | 1 | ||||
48 | 0100 | 2006 | 2 | Y | Y | 2 | Y | 1 | ||||
48 | 0100 | 2006 | 3 | Y | Y | 2 | Y | 1 | ||||
48 | 0100 | 2006 | 4 | Y | Y | 2 | Y | 1 | Y | |||
48 | 0100 | 2008 | 2 | Y | Y | 2 | Y | 1 | ||||
55 | 0100 | 2008 | 4 | Y | Y | 2 | ||||||
55 | 0100 | 2008** | 12 | Y | Y | 2 | ||||||
No Months Excluded | 81 | 35 | 14 | |||||||||
Percent Months Excluded | 11% | 5% | 1% |
* Class 10 tridems have very high percentage of lightly loaded trucks (34 percent for 0-11,999 lb and 39 percent for 12,000-14,999 lb). This could be evidence for possible misclassification. Tridems will not be used for defaults.
**There is a peak shift in winter months for single and tandem axles class 9 load spectra. Sensor temperature sensitivity or calibration issues should be checked. December 2008, February 2008, January 2008, and January 2009 have a shifted peak (9,000 lb) in the single axle class 9 plot.
Note: Blank cells indicate that no instances were identified.