wim #31 us 2, mp 8.0 fisher, mn july 2011 monthly report · difference between the 20-year besal...

WIM #31

US 2, MP 8.0

FISHER, MN

JULY 2011

MONTHLY

REPORT

In order to understand the vehicle classes and groupings the Mn/DOT “Vehicle Classification Scheme” and the “Vehicle Class Groupings for Forecasting” are shown on the WIM Reports home page at http://www.dot.state.mn.us/traffic/data/html/wim_reports.html For the month of July 2011, the system was operating normally. The data in this report uses the data that was collected for the month, no extrapolation. VOLUME For WIM #31 on US 2 at mile post 8.0 near Fisher, there were 191,119 vehicles that passed the site for the month of July. The Average Daily Traffic (ADT) and Heavy Commercial Average Daily Traffic (HCADT) for July 2011 was 6,165 and 537, respectively. Of the heavy commercial vehicles, the top two in volume were the Class 9’s and 5’s. Figure 1 shows the average numbers of vehicles and overweight vehicles by direction, versus day of the week. The average numbers of vehicles for eastbound (EB) peaked on Fridays and westbound (WB) peaked on Mondays. Figure 2 shows the total vehicles, passenger vehicles (Class 1, 2, and 3), and heavy commercial vehicles (Class 4 to 13) versus hour of day. For July the WB passenger vehicles had a small peak between 7 am and 8 am and a larger peak between 3 pm and 6 pm. The EB passenger vehicles had a peak between 1 pm and 6 pm. The passenger vehicles were reviewed for directional volume differences. The passenger volume was within 0.2% for either direction. For July the EB heavy commercial vehicles had a peak between 8 am and 3 pm and the WB heavy commercial vehicles had a peak between 9 am and 5 pm. The heavy commercial vehicles were reviewed for directional volume differences. The EB heavy commercial volume was higher than WB. VEHICLE CLASSIFICATION The traffic volume consisted of 174,479 passenger vehicles (91.3%) and 16,640 heavy commercial vehicles (8.7%). Table 1 summarizes vehicle class volumes and percentages; and overweight vehicles and the percentages as compared to total overweight vehicles. OVERWEIGHT VEHICLES Without a permit, the maximum allowable weight for a single axle is 20,000 pounds; tandem axles, spaced 8’ or less, can be up to 34,000 pounds; tridem axles, spaced 9’ or less, can be up to 43,000 pounds; quad axles, spaced 13’ or less, can be up to 51,000 pounds; and the maximum GVW is 80,000 pounds. The total volume and total heavy commercial volume for July 2011 was 191,119 and 16,640, respectively. The total number of vehicles that were overweight was 4,329 or 2.3% of the total traffic or 26.0% of the heavy commercial vehicles. Figure 1 shows the average number of overweight vehicles by direction, versus day of the week. The average numbers of overweight vehicles for EB peaked on Thursdays and for WB they peaked on Tuesdays and for both directions they were lowest on the weekends. The top two overweight violators by class were the Class 9’s and 10’s. Overweight vehicles by class versus hour of the day are shown in Figure 3. The Class 9 overweight vehicles peaked between 9 am and 5 pm and the Class 10 overweight vehicles peaked between 8 am and

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http://www.dot.state.mn.us/traffic/data/html/wim_reports.html

5 pm. The overweight vehicles were also reviewed to determine if there is an EB and WB difference. Figure 4 shows the total, EB, and WB overweight vehicles versus hour of the day. Figure 4 shows that for July 2011, 70.7% of the overweight vehicles were going WB. Figure 5 shows the GVW for Class 9’s and 10’s in both the EB and WB direction. From Figure 5 it is apparent that the Class 9’s had more empty than full in both directions. The Class 10’s had more empty than full vehicles going EB and more full than empty vehicles going WB. For weight enforcement the WIMs are a screening tool. Currently, piezo-quartz WIM systems are considered to be accurate within 5% to 10% on GVW. During normal load limits and with an accuracy of about 10% anything over a GVW of 88,000 pounds is overweight. For the most efficient use of personnel and equipment, these are the vehicles that should be weighed on static scales and reviewed for permits. In the EB direction there were 444 vehicles over 88,000 pounds, 343 were Class 9’s and 77 were Class 10’s. In the WB direction there were 1,552 vehicles over 88,000 pounds, 297 were Class 9’s and 980 were Class 10’s. Table 2 summarizes the Top 10 Gross Vehicle Weight for Class 9 and Class 10 vehicles for the month of July 2011. Chart 1 shows the number of vehicles during the last 12 months that crossed the WIM weighing more than 88,000 pounds. From the chart, it can be seen that there were a large number of weight violations from March through July of 2011. SPEED The speed limit on US 2 at the WIM site is 65 mph. For July 2011, WIM #31 recorded an average speed of 66 mph, the median speed was 66 mph, and the 85th percentile speed was 70 mph. Table 3 summarizes the vehicle data for the Top 20 speeders that crossed WIM #31 in the month of July. The speed of the Top 20 ranged from 90 mph up to 116 mph. Figure 6 shows the speed versus the normalized percentage of passenger vehicles and heavy commercial vehicles in both the EB and WB direction. As expected, the slowest vehicles were the heavy commercial vehicles in the driving lanes and the fastest vehicles were the passenger vehicles in the passing lanes. The late night fluctuations are due to low volumes at those hours. Figure 7 shows the speed versus the day of the week with the volumes normalized. For July 2011, the average speeds varied between 62 mph and 68 mph. It looks like for July 2011, there is no significant difference in speed versus day of the week. There wasn’t even much of a daily pattern in speeds. Figure 8 shows the speed versus the hour of the day with the volumes normalized. Generally, the passing lanes are consistently 2 to 4 mph faster that the driving lanes. As can be seen in the figures there are slight differences in speeds based on vehicle class and hour of the day, but no significant difference in speed versus day of the week. BRIDGE Bridge No. 8023, a box culvert, is approximately 14.5 miles east of WIM #31, and Bridge No. 60X02, a pedestrian box culvert is 7.5 miles west of WIM #31. For the month of July 2011, WIM #31 saw 191,119 vehicles pass over its sensors and measured a total

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weight of 1,521,000 kips (1 kip = 1,000 pounds). Figure 9 summarizes the total GVW by lane and class and Figure 10 summarizes the percentages each class contributes to the total GVW. Table 4 provides details on the class breakdowns versus lane for GVW. MATERIALS For July 2011, a total of 15,273 ESALs passed over the pavement at WIM #31. Approximately 92.8% of the ESALs were in the driving lane, 33.4% EB and 59.4% WB. Figure 11 graphically depicts the total ESALs by class and lane. Figure 12 summarizes the percentages that each vehicle class contributes to the total ESALs. It is interesting to note that the Class 9’s provide 43.7% of the ESALs while they are only 17.9% of the total GVW. Table 5 provides details on the class breakdowns versus lane for ESALs. Table 5 also provides the flexible ESAL factors for each vehicle class using a terminal serviceability of 2.5 and a structural number of 5. Reviewing the ESALs in the 4 lanes for July 2011, the largest is Lane 4, the WB driving lane. Therefore, the WB driving lane would be the design lane and the growth factor for this section of TH 2 in Polk County is 0.5%. For the WB driving lane, there were 617 Class 9 trucks and 1,313 Class 10 trucks over 80,000 pounds. These 1,930 vehicles generated 5,074 ESALs. If all of these trucks weighed just 80,000 pounds they would have generated 3,296 ESALs, 1,779 ESALs lower. If you take the July WB driving lane ESALs of 9,065 and multiply it by 12 to get an annual ESAL number, apply a growth factor of 0.5% for 20 years (1.10) and then multiply it by 20 to get a 20-year BESAL you get 2,393,000. If you go through the same process but start with a monthly value of 7,286, i.e. subtracting out all of the overweight Class 9 and 10 vehicles, you come up with 1,923,000 20-year BESALs. If you take the difference between the 20-year BESAL and divide that by 9,065, the BESALs with the overweight Class 9’s and 10’s you get 51.81, or the overweight Class 9’s and 10’s cause the pavement to reach its 20-year design life over 4 years early. This is a quick, back of the napkin calculation, this only looks at Class 9’s and 10’s, not the other 8 heavy commercial classes. As part of a technical implementation research project we are looking at developing a report function that will perform this calculation for all heavy commercial classes. Because the heavy commercial haulers are looking to move that tonnage of freight we will add additional legal-weight trucks so that the total tonnage being shipped stays the same. FREIGHT For WIM #31 for July 2011, it was calculated that approximately 168,000 tons of freight crossed the sensors. More freight was shipped WB (103,000 tons) versus EB (65,000 tons). Table 6 summarizes number of vehicles by class and the number of empty vehicles. Table 6 and Figure 13 summarize the freight shipment by class, direction, and tonnage.

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CALIBRATION WIM #31 was calibrated on September 28, 2010 and calibrated again on February 23, 2011. As part of the on-going monitoring to assure the performance between calibrations, gross vehicle weights and front axle weights of Class 2’s, 3’s, and 9’s are being monitored on a monthly basis. Table 7 summarizes the gross vehicle weight of the Class 2’s and 3’s. Currently, all Class 2’s and 3’s are included in this data. In the future, the goal would be to only monitor the Class 2’s and 3’s that are not pulling trailers. Table 8 summarizes the front axle weight of the Class 2’s, 3’s, and 9’s by lane. The current goal of the calibration is to first have the GVW for each class and each lane stay within a range of ±5% and then secondly to have each individual axle stay within a range of ±9%. As you can see in Table 7, the GVW was only within the range for both classes for Lane 2 and for Class 2 in Lane 1. In Table 8 the front axle weight for the three classes stayed within ±9% for all 4 Lanes except Class 2 Lane 4. Past WIM research indicates that an unloaded Class 9 should weigh 28 to 32 kips. Data from the MnROAD site indicates that this unloaded range may have moved a little higher. The range for loaded Class 9’s is generally in the 70 to 80 kip range but varies more by site and season. Figures 14 to 17 show histograms of the monthly GVW of Class 9’s for the last 12 to 20 months for Lanes 1 to 4. Figure 18 is a graph of the unloaded and loaded peaks by lane versus date. There are enough Class 9’s in Lanes 1 and 4 that a weekly histogram can be developed, while for Lanes 2 and 3 about 4 weeks of data is needed to develop a clear histogram. Based on Figures 14 to 18, it looks like the system needs to be recalibrated. SUMMARY For July 2011 the average volume peaked on Fridays for EB and on Mondays for WB. The overweight vehicles for EB peaked on Thursdays and for WB they peaked on Tuesdays and for both directions they were lowest on the weekends. Over 70% of the overweight vehicles were going WB. The overweight vehicles peaked from 8 am to 5 pm. For July 2011, 24.6% of the Class 9’s were overweight and 54.9% of the Class 10’s were overweight. The speed of the traffic varies slightly based on vehicle class, lane, and hour of the day, but there was no significant difference in speed versus day of the week. The GVW was higher in the WB direction 846,000 kips versus 675,000 kips EB. This agrees with the ESALs and freight data. The WB ESALs were higher 9,605 versus 5,668 EB. The tonnage of freight was also higher in the WB direction 103,000 versus 65,000 WB. For July, the overweight Class 9’s and 10’s were shortening the 20-year BESAL design life by over 4 years. Table 9 provides a monthly summary of some of the key data for the site during the last 12 months. Attach: Table 1 – Vehicle Classification Data Table 2 – Top 10 Gross Vehicle Weight, Class 9 and Class 10 Table 3 – Top 20 Speeders Table 4 – Gross Vehicle Weight by Class and Lane Table 5 – ESALs by Class and Lane and Flexible ESAL Factors Table 6 – Freight Summary

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Table 7 – Gross Vehicle Weight by Class and Lane Table 8 – Front Axle Weight by Class and Lane Table 9 – Site Summary Chart 1 – Year to Date Vehicles Over 88,000 Pounds by Month and Weight Figure 1 – Average Volume and Average Overweight Volume vs. Day of the Week Figure 2 – Passenger and Heavy Commercial Vehicles vs. Hour of the Day Figure 3 – Overweight Vehicles by Class vs. Hour of the Day Figure 4 – Overweight Vehicles by Direction vs. Hour of the Day Figure 5 – Class 9’s and 10’s by Direction vs. Gross Vehicle Weight Figure 6 – Average Speed by Lane and Vehicle Type vs. Hour of the Day Figure 7 – Average Speed vs. Day of the Week Figure 8 – Average Speed by Lane and Direction vs. Hour of the Day Figure 9 – Total Gross Vehicle Weight by Class Figure 10 – Total Gross Vehicle Weight by Class Figure 11 – Total ESALs by Class and Lane Figure 12 – ESALs by Class Figure 13 – Freight Tonnage and Percentage by Direction and Class Figure 14 – Monthly Class 9 GVW Histogram – Lane 1 (EB Driving) Figure 15 – Monthly Class 9 GVW Histogram – Lane 2 (EB Passing) Figure 16 – Monthly Class 9 GVW Histogram – Lane 3 (WB Passing) Figure 17 – Monthly Class 9 GVW Histogram – Lane 4 (WB Driving) Figure 18 – Unloaded and Loaded Peaks by Lane vs. Date To request information from this document in an alternative electronic format, call 651-366-4718 or 1-800-657-3774 (Greater Minnesota); 711 or 1-800-627-3529 (Minnesota Relay). You may also send an e-mail to [email protected].

(Please request at least one week in advance).

mailto:[email protected]

MONTHLY MONTHLY MONTHLY MONTHLY

AVERAGE MONTHLY TOTAL TOTAL TOTAL

VEHICLE DAILY TOTAL VOLUME OVERWEIGHT OVERWEIGHT

CLASS VOLUME VOLUME PERCENTAGE VEHICLES PERCENTAGE

C1 0 3 0.0% 0 0.0%

C2 3,992 123,760 64.8% 0 0.0%

C3 1,636 50,719 26.5% 0 0.0%

C4 18 550 0.3% 136 3.1%

C5 131 4,072 2.1% 112 2.6%

C6 46 1,417 0.7% 204 4.7%

C7 12 361 0.2% 315 7.3%

C8 18 563 0.3% 49 1.1%

C9 204 6,334 3.3% 1,555 35.9%

C10 92 2,851 1.5% 1,565 36.2%

C11 2 65 0.0% 2 0.0%

C12 1 18 0.0% 11 0.3%

C13 13 406 0.2% 380 8.8%

TOTAL = 6,165 191,119 100.0% 4,329 100.0%

DAY OF VEHICLE GVW

DATE WEEK TIME CLASS DIRECTION LANE (lbs)

7/23/11 Saturday 9:44:31 10 Westbound 4 148,000

7/25/11 Monday 20:29:28 10 Eastbound 1 144,000



7/8/11 Friday 9:44:21 10 Westbound 4 127,000

7/24/11 Sunday 16:15:03 10 Westbound 4 125,000


7/26/11 Tuesday 16:17:00 10 Westbound 4 123,000


7/26/11 Tuesday 16:16:47 10 Westbound 4 121,000

July 2011

TABLE 2 - TOP 10 GROSS VEHICLE WEIGHT, CLASS 9 AND CLASS 10

TABLE 1 - VEHICLE CLASSIFICATION DATA

WIM #31 - FISHER

July 2011

WIM #31 - FISHER

DAY OF VEHICLE SPEED

DATE WEEK TIME CLASS DIRECTION LANE (mph)

7/22/11 Friday 1:38:45 2 Westbound 4 116

7/25/11 Monday 4:43:07 2 Westbound 4 112


7/31/11 Sunday 4:17:51 2 Eastbound 1 102

7/22/11 Friday 6:28:02 2 Westbound 3 101

7/28/11 Thursday 6:18:19 2 Eastbound 2 98

7/30/11 Saturday 10:30:14 2 Eastbound 2 98

7/29/11 Friday 2:19:04 3 Eastbound 1 97


7/24/11 Sunday 4:41:52 2 Westbound 4 96


7/16/11 Saturday 16:43:14 2 Westbound 4 93

7/20/11 Wednesday 21:39:24 2 Westbound 4 92



7/17/11 Sunday 7:08:12 3 Westbound 4 91



7/30/11 Saturday 15:05:05 2 Eastbound 2 91


EB EB WB WB

DRIVING PASSING PASSING DRIVING

VEHICLE LANE LANE LANE LANE TOTAL

CLASS (Kips) (Kips) (Kips) (Kips) (Kips) PERCENTAGE

C1 543 90 84 387 1,103 0.1%

C2 201,011 44,934 57,068 201,731 504,744 33.2%

C3 127,989 26,742 29,863 155,968 340,563 22.4%

C4 2,471 660 693 9,493 13,317 0.9%

C5 37,341 3,560 4,989 37,693 83,583 5.5%

C6 14,520 2,472 1,031 22,227 40,249 2.6%

C7 3,840 2,745 1,021 12,294 19,900 1.3%

C8 10,253 1,014 1,263 17,562 30,092 2.0%

C9 134,193 13,229 6,340 119,107 272,868 17.9%

C10 39,662 4,654 12,160 150,720 207,197 13.6%

C11 710 0 0 789 1,500 0.1%

C12 228 56 60 401 745 0.0%

C13 1,877 0 0 2,784 4,661 0.3%

TOTAL = 574,637 100,157 114,571 731,155 1,520,521 100.0%

GVW/LANE = 37.8% 6.6% 7.5% 48.1%

GVW/DIRECTION = 44.4% 55.6%

GVW/DIRECTION = 674,795 845,727

TABLE 4 - GROSS VEHICLE WEIGHT BY CLASS AND LANE

WIM #31 - FISHER

July 2011

TABLE 3 - TOP 20 SPEEDERS

WIM #31 - FISHER

July 2011

EB EB WB WB FLEXIBLE

VEHICLE DRIVING PASSING PASSING DRIVING ESAL

CLASS LANE LANE LANE LANE TOTAL PERCENTAGE FACTOR

C1 0 0 0 0 0 0.0% 0.0004

C2 49 10 15 56 129 0.8% 0.0005

C3 61 12 15 78 166 1.1% 0.0018

C4 102 23 24 387 536 3.5% 0.58

C5 497 29 25 417 968 6.3% 0.13

C6 303 46 25 683 1,057 6.9% 0.34

C7 138 94 28 392 652 4.3% 0.62

C8 167 9 7 191 374 2.5% 0.28

C9 3,173 282 124 3,092 6,670 43.7% 0.60

C10 509 65 276 3,620 4,471 29.3% 0.64

C11 20 0 0 9 28 0.2% 0.26

C12 5 1 1 9 17 0.1% 1.59

C13 73 0 0 131 204 1.3% 2.34

TOTAL = 5,098 570 540 9,065 15,273 100.0%

ESALS/LANE = 33.4% 3.7% 3.5% 59.4%

ESALS/DIRECTION = 37.1% 62.9%

ESALS/DIRECTION = 5,668 9,604

WEIGHT OF TOTAL NUMBER PERCENTAGE TOTAL WEIGHT WEIGHT TOTAL

EMPTY NUMBER OF OF OF FREIGHT OF EMPTY WEIGHT OF

VEHICLE VEHICLE OF EMPTY EMPTY & VEHICLES VEHICLES FREIGHT

CLASS (Kips) VEHICLES VEHICLES VEHICLES (Kips) (Kips) (Tons)

C4 15.0 215 16 7.4% 6,300 169 1,573

C5 8.0 2,030 88 4.3% 32,038 616 7,943

C6 19.0 774 49 6.3% 23,203 798 4,315

C7 11.5 123 0 0.0% 7,620 0 3,103

C8 31.0 258 127 49.2% 8,201 2,663 739

C9 33.0 4,057 781 19.3% 206,917 22,788 38,011

C10 33.5 1,264 284 22.5% 56,040 8,463 7,374

C11 36.5 32 11 34.4% 1,585 235 292

C12 36.5 6 0 0.0% 463 0 122

C13 31.5 46 1 2.2% 4,547 27 1,551

TOTAL = 8,805 1,357 15.4% 346,914 -- 65,021

WEIGHT OF TOTAL NUMBER PERCENTAGE TOTAL WEIGHT WEIGHT TOTAL

EMPTY NUMBER OF OF OF FREIGHT OF EMPTY WEIGHT OF

VEHICLE VEHICLE OF EMPTY EMPTY & VEHICLES VEHICLES FREIGHT

CLASS (Kips) VEHICLES VEHICLES VEHICLES (Kips) (Kips) (Tons)

C4 15.0 321 24 7.5% 10,421 266 2,850

C5 8.0 1,969 36 1.8% 29,938 250 7,112

C6 19.0 643 19 3.0% 23,795 332 5,804

C7 11.5 255 0 0.0% 16,552 0 6,810

C8 31.0 270 155 57.4% 7,711 3,046 550

C9 33.0 2,254 362 16.1% 127,004 11,090 26,739

C10 33.5 1,620 17 1.0% 136,701 461 41,270

C11 36.5 33 16 48.5% 1,135 346 84

C12 36.5 14 2 14.3% 1,174 52 342

C13 31.5 360 0 0.0% 34,586 0 11,623

TOTAL = 7,739 631 8.2% 389,017 -- 103,183

GRAND TOTAL = 16,544 1,988 12.0% 735,931 -- 168,205

WESTBOUND

TABLE 6 - FREIGHT SUMMARY

WIM #31 - FISHER

July 2011

July 2011

TABLE 5 - ESALs BY CLASS AND LANE AND FLEXIBLE ESAL FACTORS

WIM #31 - FISHER

EASTBOUND

VEHICLE LANE 1 GVW LANE 2 GVW LANE 3 GVW LANE 4 GVW

MONTH CLASS (Kips) ± 5% (Kips) ± 5% (Kips) ± 5% (Kips) ± 5%

Aug 10 C2 3.67 -7.56% 3.45 -16.26% 3.93 -11.09% 4.02 3.61%

Sep 10 3.70 -6.80% 3.49 -15.29% 3.89 -11.99% 3.96 2.06%

Oct 10 3.72 -- 3.66 -- 3.99 -- 3.96 --

Nov 10 3.63 -2.42% 3.74 2.19% 3.87 -3.01% 3.75 -5.30%

Dec 10 3.44 -7.53% 3.70 1.09% 3.74 -6.27% 3.64 -8.08%

Jan 11 3.36 -9.68% 3.64 -0.55% 3.62 -9.27% 3.58 -9.60%

Feb 11 3.57 -4.03% 3.76 2.73% 3.77 -5.51% 3.73 -5.81%

Mar 11 4.37 -- 4.20 -- 4.22 -- 4.37 --

Apr 11 4.55 4.12% 4.33 3.10% 4.29 1.66% 4.71 7.78%

May 11 4.63 5.95% 4.35 3.57% 4.43 4.98% 4.81 10.07%

Jun 11 4.72 8.01% 4.27 1.67% 4.56 8.06% 4.77 9.15%

Jul 11 4.50 2.97% 4.23 0.71% 4.62 9.48% 4.84 10.76%

Aug 10 C3 6.09 -0.81% 5.45 -14.04% 6.11 -10.41% 6.38 7.41%

Sep 10 6.03 -1.79% 5.54 -12.62% 6.06 -11.14% 6.30 6.06%

Oct 10 6.04 -- 5.72 -- 6.19 -- 6.24 --

Nov 10 5.72 -5.30% 5.69 -0.52% 5.90 -4.68% 5.78 -7.37%

Dec 10 5.34 -11.59% 5.60 -2.10% 5.61 -9.37% 5.53 -11.38%

Jan 11 5.26 -12.91% 5.61 -1.92% 5.56 -10.18% 5.50 -11.86%

Feb 11 5.50 -8.94% 5.76 0.70% 5.74 -7.27% 5.66 -9.29%

Mar 11 6.71 -- 6.47 -- 6.45 -- 6.65 --

Apr 11 7.10 5.81% 6.74 4.17% 6.63 2.79% 7.17 7.82%

May 11 7.44 10.88% 6.73 4.02% 6.92 7.29% 7.43 11.73%

Jun 11 7.61 13.41% 6.81 5.26% 7.15 10.85% 7.47 12.33%

Jul 11 7.26 8.20% 6.76 4.48% 7.26 12.56% 7.62 14.59%

VEHICLE LANE 1 FRONT AXLE LANE 2 FRONT AXLE LANE 3 FRONT AXLE LANE 4 FRONT AXLE

MONTH CLASS (Kips) ± 9% (Kips) ± 9% (Kips) ± 9% (Kips) ± 9%

Aug 10 C2 2.07 -11.91% 1.99 -18.78% 2.23 -12.55% 2.29 2.23%

Sep 10 2.10 -10.64% 2.02 -17.55% 2.22 -12.94% 2.26 0.89%

Oct 10 2.11 -- 2.12 -- 2.28 -- 2.27 --

Nov 10 2.06 -2.37% 2.16 1.89% 2.21 -3.07% 2.16 -4.85%

Dec 10 1.95 -7.58% 2.11 -0.47% 2.12 -7.02% 2.10 -7.49%

Jan 11 1.91 -9.48% 2.07 -2.36% 2.06 -9.65% 2.06 -9.25%

Feb 11 2.05 -2.84% 2.17 2.36% 2.18 -4.39% 2.17 -4.41%

Mar 11 2.59 -- 2.47 -- 2.52 -- 2.62 --

Apr 11 2.70 4.25% 2.55 3.24% 2.56 1.59% 2.83 8.02%

May 11 2.73 5.41% 2.55 3.24% 2.63 4.37% 2.87 9.54%

Jun 11 2.77 6.95% 2.50 1.21% 2.70 7.14% 2.84 8.40%

Jul 11 2.63 1.54% 2.47 0.00% 2.72 7.94% 2.86 9.16%

Aug 10 C3 2.94 -11.98% 2.87 -18.47% 3.15 -13.46% 3.15 1.29%

Sep 10 2.98 -10.78% 2.92 -17.05% 3.14 -13.74% 3.15 1.29%

Oct 10 3.01 -- 3.03 -- 3.23 -- 3.17 --

Nov 10 2.91 -3.32% 3.05 0.66% 3.12 -3.41% 3.02 -4.73%

Dec 10 2.75 -8.64% 2.99 -1.32% 2.97 -8.05% 2.92 -7.89%

Jan 11 2.72 -9.63% 2.95 -2.64% 2.92 -9.60% 2.86 -9.78%

Feb 11 2.92 -2.99% 3.10 2.31% 3.09 -4.33% 3.01 -5.05%

Mar 11 3.70 -- 3.55 -- 3.59 -- 3.66 --

Apr 11 3.83 3.51% 3.71 4.51% 3.68 2.51% 3.92 7.10%

May 11 3.87 4.59% 3.65 2.82% 3.76 4.74% 3.97 8.47%

Jun 11 3.91 5.68% 3.62 1.97% 3.85 7.24% 3.92 7.10%

Jul 11 3.68 -0.54% 3.60 1.41% 3.90 8.64% 3.94 7.65%

Aug 10 C9 9.62 -16.49% 9.10 -23.21% 10.06 -9.29% 10.36 0.39%

Sep 10 9.76 -15.28% 9.06 -23.54% 9.96 -10.19% 10.39 0.68%

Oct 10 9.91 -- 9.84 -- 10.13 -- 10.32 --

Nov 10 9.88 -0.30% 10.07 2.34% 9.98 -1.48% 9.89 -4.17%

Dec 10 9.28 -6.36% 9.73 -1.12% 9.55 -5.73% 9.52 -7.75%

Jan 11 9.55 -3.63% 9.61 -2.34% 9.08 -10.37% 9.38 -9.11%

Feb 11 10.22 3.13% 10.31 4.78% 9.59 -5.33% 9.93 -3.78%

Mar 11 13.40 -- 11.57 -- 11.46 -- 12.25 --

Apr 11 13.91 3.81% 12.02 3.89% 11.60 1.22% 12.46 1.71%

May 11 13.99 4.40% 12.15 5.01% 12.28 7.16% 12.99 6.04%

Jun 11 13.80 2.99% 11.67 0.86% 12.23 6.72% 12.85 4.90%

Jul 11 12.31 -8.13% 11.46 -0.95% 12.12 5.76% 12.99 6.04%

July 2011

TABLE 7 - GROSS VEHICLE WEIGHT BY CLASS AND LANE

WIM #31 - FISHER

July 2011

TABLE 8 - FRONT AXLE WEIGHT BY CLASS AND LANE

WIM #31 - FISHER

HEAVY HEAVY

HEAVY HEAVY COMMERCIAL COMMERCIAL

PASSENGER PASSENGER COMMERCIAL COMMERCIAL VEHICLES IN VEHICLES IN

TOTAL MONTHLY MONTHLY VEHICLES VEHICLES VEHICLES VEHICLES DRIVING LANE PASSING LANE

MONTH VOLUME ADT HCADT # % # % % %

Aug 10 200,223 6,506 581 182,345 91.1% 17,878 8.9% 91.5% 8.5%

Sep 10 195,089 6,500 645 175,411 89.9% 19,678 10.1% 89.9% 10.1%

Oct 10 180,550 5,824 656 160,227 88.7% 20,323 11.3% 91.0% 9.0%

Nov 10 145,511 4,954 397 133,542 91.8% 11,969 8.2% 92.7% 7.3%

Dec 10 145,321 4,859 356 134,426 92.5% 10,895 7.5% 92.7% 7.3%

Jan 11 132,728 4,282 361 121,551 91.6% 11,177 8.4% 92.7% 7.3%

Feb 11 132,509 4,732 403 121,228 91.5% 11,281 8.5% 93.2% 6.8%

Mar 11 140,271 4,525 431 126,914 90.5% 13,357 9.5% 92.2% 7.8%

Apr 11 153,334 5,111 565 136,381 88.9% 16,953 11.1% 93.0% 7.0%

May 11 166,797 5,381 572 149,057 89.4% 17,740 10.6% 91.5% 8.5%

Jun 11 174,486 5,816 590 156,796 89.9% 17,690 10.1% 91.0% 9.0%

Jul 11 191,119 6,165 537 174,479 91.3% 16,640 8.7% 90.7% 9.3%

TOTAL = 1,957,938 -- -- 1,772,357 -- 185,581 -- -- --

AVERAGE = 163,162 5,388 508 147,696 90.5% 15,465 9.5% 91.8% 8.2%

ESALS ESALS ESALS ESALS DRIVING PASSING PAVEMENT

EB EB WB WB LANE LANE LIFE

DRIVING PASSING PASSING DRIVING TOTAL ESALS ESALS DECREASE

MONTH LANE LANE LANE LANE ESALS % % MONTHS*

Aug 10 2,751 41 426 5,757 8,976 94.8% 5.2% 3.88

Sep 10 3,317 318 778 6,817 11,230 90.2% 9.8% 4.27

Oct 10 3,204 394 713 6,230 10,541 89.5% 10.5% 10.30

Nov 10 2,652 365 211 2,440 5,669 89.8% 10.2% 9.09

Dec 10 1,685 283 105 1,776 3,849 89.9% 10.1% 2.78

Jan 11 872 220 101 1,689 2,882 88.9% 11.1% 0.48

Feb 11 1,875 292 124 2,081 4,372 90.5% 9.5% 0.07

Mar 11 5,252 544 193 4,724 10,712 93.1% 6.9% 106.41**

Apr 11 9,135 532 277 1,555 11,500 93.0% 7.0% 128.99**

May 11 8,475 698 556 8,413 18,142 93.1% 6.9% 117.74**

Jun 11 6,750 503 663 7,972 15,888 92.7% 7.3% 50.66

Jul 11 5,098 570 540 9,065 15,273 92.7% 7.3% 51.81

TOTAL = 51,068 4,761 4,687 58,517 119,032 -- -- --

AVERAGE = 4,256 397 391 4,876 9,919 91.5% 8.5% 32.5

* Based on WLI of 88,000 lbs in effect until March 9, 2010 and then again starting December 8, 2010 and ending on March 18, 2011.

** Lane 1 out of calibration, effected pavement life decrease calculation.

TABLE 9 - SITE SUMMARYWIM #31 - FISHER

July 2011

V

O

L

U

M

E

&

V

E

H

I

C

L

E

C

L

A

S

S

E

S

A

L

S

OVERWEIGHT/

GVW GVW GVW GVW TOTAL OVERWEIGHT/ HEAVY NUMBER NUMBER

EB EB WB WB TOTAL NUMBER OF TOTAL COMMERCIAL OVER OVER

DRIVING PASSING PASSING DRIVING GVW OVERWEIGHT VOLUME VOLUME 88,000 98,000

MONTH LANE LANE LANE LANE KIPS MONTH VEHICLES % % LBS LBS

Aug 10 508,720 62,689 111,900 668,854 1,352,164 Aug 10 1,834 0.9% 10.3% 96 56

Sep 10 541,109 94,374 126,281 683,124 1,444,888 Sep 10 2,442 1.3% 12.4% 129 50

Oct 10 434,451 78,402 99,521 562,362 1,174,736 Oct 10 3,036 1.7% 14.9% 233 77

Nov 10 391,270 62,556 66,650 411,235 931,711 Nov 10 897 0.6% 7.5% 140 53

Dec 10 330,093 59,606 59,099 376,032 824,829 Dec 10 467 0.3% 4.3% 113 52

Jan 11 253,628 46,553 50,522 355,668 706,371 Jan 11 519 0.4% 4.6% 87 16

Feb 11 301,245 53,699 54,382 368,248 777,575 Feb 11 897 0.7% 8.0% 264 101

Mar 11 428,236 73,785 63,934 489,676 1,055,631 Mar 11 3,029 2.2% 22.7% 1,373 377

Apr 11 571,945 80,637 77,352 379,308 1,109,242 Apr 11 3,679 2.4% 21.7% 1,979 536

May 11 601,612 92,389 101,282 670,171 1,465,455 May 11 5,057 3.0% 28.5% 2,754 560

Jun 11 595,114 91,428 114,485 662,548 1,463,576 Jun 11 4,389 2.5% 24.8% 2,274 370

Jul 11 574,637 100,157 114,571 731,155 1,520,521 Jul 11 4,329 2.3% 26.0% 1,996 221

TOTAL = 5,532,061 896,275 1,039,980 6,358,383 13,826,699 TOTAL = 30,575 -- -- 11,438 2,469

AVERAGE = 461,005 74,690 86,665 529,865 1,152,225 AVERAGE = 2,548 1.6% 16.5% 953 206

* Based on WLI of 88,000 lbs in effect until March 9, 2010 and then again starting December 8, 2010

and ending on March 18, 2011.

85th

AVERAGE MEDIAN PERCENTILE SYSTEM SYSTEM EB WB TOTAL EB WB

SPEED SPEED SPEED OPERATION OPERATION FREIGHT FREIGHT FREIGHT FREIGHT FREIGHT

MONTH (mph) (mph) (mph) Days % MONTH TONS TONS TONS % %

Aug 10 66 66 70 31 100.0% Aug 10 48,505 83,995 132,500 36.6% 63.4%

Sep 10 66 66 70 30 99.2% Sep 10 58,708 98,899 157,606 37.2% 62.8%

Oct 10 66 66 70 25.67 82.8% Oct 10 57,343 87,038 144,381 39.7% 60.3%

Nov 10 66 66 70 30 100.0% Nov 10 49,987 33,050 83,037 60.2% 39.8%

Dec 10 65 66 69 31 100.0% Dec 10 28,002 17,069 45,071 62.1% 37.9%

Jan 11 65 65 69 31 100.0% Jan 11 44,895 22,873 67,768 66.2% 33.8%

Feb 11 65 66 70 28 100.0% Feb 11 53,326 27,439 80,765 66.0% 34.0%

Mar 11 65 66 69 31 100.0% Mar 11 85,120 49,619 134,739 63.2% 36.8%

Apr 11 66 66 70 30 100.0% Apr 11 115,602 66,010 181,612 63.7% 36.3%

May 11 66 66 70 31 100.0% May 11 105,468 96,890 202,358 52.1% 47.9%

Jun 11 66 66 70 30 100.0% Jun 11 81,704 100,579 182,283 44.8% 55.2%

Jul 11 66 66 70 31 100.0% Jul 11 65,021 103,183 168,204 38.7% 61.3%

TOTAL = -- -- -- 359.42 -- TOTAL = 793,681 786,643 1,580,323 -- --

AVERAGE = 66 66 70 -- 98.5% AVERAGE = 66,140 65,554 131,694 50.2% 49.8%

TABLE 9 - SITE SUMMARY (contd.)WIM #31 - FISHER

July 2011

O

V

E

R

W

E

I

G

H

T

V

E

H

I

C

L

E

S

G

R

O

S

S

V

E

H

I

C

L

E

W

E

I

G

H

T

S

P

E

E

D

F

R

E

I

G

H

T

100

200

300

400

500

600

700

Num

ber of Veh

icles

Chart 1 ‐ Number of Vehicles Over 88,000 Pounds

Jul‐11

Jun‐11

May‐11

Apr‐11

Mar‐11

Feb‐11

Jan‐11

Dec‐10

Nov‐10

Oct‐10

Sep‐10

Aug‐10

Vehicle Weights(Kips) Jul-11 Jun-11 May-11 Apr-11 Mar-11 Feb-11 Jan-11 Dec-10 Nov-10 Oct-10 Sep-10 Aug-1088-90 657 640 650 380 301 49 20 20 28 54 29 1190-92 552 577 526 304 198 39 15 19 21 38 30 1592-94 327 373 454 278 184 26 6 12 18 33 11 694-96 154 166 312 246 174 22 6 7 12 16 4 596-98 87 149 255 237 140 27 8 3 8 15 5 3

98-100 49 125 194 186 114 25 1 0 2 7 1 2>100 172 244 364 348 262 76 15 52 35 70 49 54

TOTAL = 1,998 2,274 2,755 1,979 1,373 264 71 113 124 233 129 96

0

100

88‐90 90‐92 92‐94 94‐96 96‐98 98‐100 >100

Vehicle Weight (Kips)

80

100

120

140

160

2,000

2,500

3,000

3,500

4,000

4,500

mbe

r of O

verw

eigh

t Veh

icles

e Num

ber o

f Veh

icles

Figure 1 ‐ Average Volume and Average Overweight Volumevs. Day of the Week

EB VehiclesWB VehiclesEB Overweight VehiclesWB Overweight Vehicles

0

20

40

60

0

500

1,000

1,500

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

Average

Num

Average

Day of the Week

400

500

600

700

800

900

3 000

4,000

5,000

6,000

7,000

8,000

eavy Com

mercial Veh

icles

Passen

ger Veh

icles

Figure 2 ‐ Passenger and Heavy Commercial Vehicles vs. Hour of the Day

EB Passenger VehiclesWB Passenger VehiclesEB Heavy Commercial VehiclesWB Heavy Commercial Vehicles

0

100

200

300

0

1,000

2,000

3,000

0 ‐1

1 ‐2

2 ‐3

3 ‐4

4 ‐5

5 ‐6

6 ‐7

7 ‐8

8 ‐9

9 ‐1

0

10 ‐11

11 ‐12

12 ‐13

13 ‐14

14 ‐15

15 ‐16

16 ‐17

17 ‐18

18 ‐19

19 ‐20

20 ‐21

21 ‐22

22 ‐23

23 ‐24

He

Hour of the Day

80

100

120

140

160

180

200

Overw

eigh

t Veh

icles

Figure 3 ‐ Overweight Vehicles by Class vs. Hour of the Day

C4

C5

C6

C7

C8

C9

C10

C11

C12

C13

0

20

40

60

0 ‐1

1 ‐2

2 ‐3

3 ‐4

4 ‐5

5 ‐6

6 ‐7

7 ‐8

8 ‐9

9 ‐1

0

10 ‐11

11 ‐12

12 ‐13

13 ‐14

14 ‐15

15 ‐16

16 ‐17

17 ‐18

18 ‐19

19 ‐20

20 ‐21

21 ‐22

22 ‐23

23 ‐24

Hour of the Day

0

50

100

150

200

250

300

350

400

450

0 -

1

1 -

2

2 -

3

3 -

4

4 -

5

5 -

6

6 -

7

7 -

8

8 -

9

9 -

10

10

-1

1

11

-1

2

12

-1

3

13

-1

4

14

-1

5

15

-1

6

16

-1

7

17

-1

8

18

-1

9

19

-2

0

20

-2

1

21

-2

2

22

-2

3

23

-2

4

Ove

rwe

igh

t V

eh

icle

s

Hour of the Day

Figure 4 - Overweight Vehicles by Direction vs. Hour of the Day

Total Overweight VehiclesEBWB

200

250

300

350

400

Veh

icles

Figure 5 ‐ Class 9's and 10's by Direction vs. Gross Vehicle Weight

EB Class 9

WB Class 9

EB Class 10

WB Class 10

0

50

100

150

0 10 20 30 40 50 60 70 80 90 100 110 120 130

Weight (Kips)

55

60

65

70

75

0:00 2:00 4:00 6:00 8:00 10:00 12:00 14:00 16:00 18:00 20:00 22:00

Spe

ed

(m

pd

)

Hour

Figure 6 - Average Speed by Lane and Vehicle Type vs. Hour of the Day

Lane 1, EB - Passenger Vehicles Lane 1, EB - Heavy Commercial VehiclesLane 2, EB - Passenger Vehicles Lane 2, EB - Heavy Commercial VehiclesLane 3, WB - Passenger Vehicles Lane 3, WB - Heavy Commercial VehiclesLane 4, WB - Passenger Vehicles Lane 4, WB - Heavy Commercial Vehicles

65

70

75

Speed (m

pd)

Figure 7 ‐ Average Speed vs. Day of the Week

55

60

0:00

6:00

12:00

18:00

0:00

6:00

12:00

18:00

0:00

6:00

12:00

18:00

0:00

6:00

12:00

18:00

0:00

6:00

12:00

18:00

0:00

6:00

12:00

18:00

0:00

6:00

12:00

18:00

0:00

SUNDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAYMONDAY

55

60

65

70

75

0:00 2:00 4:00 6:00 8:00 10:00 12:00 14:00 16:00 18:00 20:00 22:00

Spe

ed

(m

pd

)

Hour

Figure 8 - Average Speed by Lane and Direction vs. Hour of the Day

Lane 1 - EB Driving

Lane 2 - EB Passing

Lane 3 - WB Passing

Lane 4 - WB Driving

100 000

150,000

200,000

250,000

tal G

ross W

eight (Kips)

Figure 9 ‐ Total Gross Vehicle Weight by Class and Lane

EB Driving LaneEB Passing LaneWB Driving LaneWB Passing Lane

0

50,000

100,000

C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13

Tot

Vehicle Class

C10.1%

C233.2%

C917.9%

C1013.6%

C110.1%

C120.0%

C130.3%

Figure 10 ‐ Total Gross Vehicle Weight by Class

C322.4%

C40.9%

C55.5%

C62.6%

C71.3%

C82.0%

2,000

2,500

3,000

3,500

4,000

ESALs

Figure 11 ‐ Total ESALs by Class and Lane

EB Driving LaneEB Passing LaneWB Driving LaneWB Passing Lane

0

500

1,000

1,500

C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13

Vehicle Class

C10.0%

C20.8% C3

1.1% C43.5%

C56.3%

C66.9%

C74.3%

C8

C1029.3%

C110.2%

C120.1%

C131.3%

Figure 12 ‐ ESALs by Class

2.5%

C943.7%

Figure 13 - Freight Tonnage and Percentage by Direction and Class

C41,5732% C5

7,94312%

C64,3157%

C73,1035%

C87391%

C938,01159%

C107,37411%

C112921%

C121220%

C131,5512%

Eastbound Freight

C42,8503%

C57,1127%

C65,8046%

C76,8107%

C85500%

C926,73926%

C1041,27040%

C11840%

C123420%

C1311,62311%

Westbound Freight

4 0%

5.0%

6.0%

7.0%

8.0%

9.0%

10.0%

Freq

uency

Figure 14 ‐Monthly Class 9 GVW Histogram ‐ Lane 1 (EB Driving)

Aug‐10Sep‐10Oct‐10Nov‐10Dec‐10Jan‐11Feb‐11Mar‐11Apr‐11May‐11Jun‐11Jul‐11

Unloaded Peak28‐32 Kips

0.0%

1.0%

2.0%

3.0%

4.0%

20 30 40 50 60 70 80 90 100

GVW (Kips)

4 0%

5.0%

6.0%

7.0%

8.0%

9.0%

10.0%

Freq

uency

Figure 15 ‐Monthly Class 9 GVW Histogram ‐ Lane 2 (EB Passing)

Oct‐Nov 09Dec 09‐Jan 10Feb‐Mar 10Apr‐May 10Jun‐Jul 10Aug‐Sep 10Oct‐Nov 10Dec 10‐Jan 11Feb‐Mar 11Apr‐May 11Jun‐Jul 11


0.0%

1.0%

2.0%

3.0%

4.0%

20 30 40 50 60 70 80 90 100

GVW (Kips)

4 0%

5.0%

6.0%

7.0%

8.0%

9.0%

10.0%

Freq

uency

Figure 16 ‐Monthly Class 9 GVW Histogram ‐ Lane 3 (WB Passing)

Oct‐Nov 09Dec 09‐Jan 10Feb‐Mar 10Apr‐May 10Jun‐Jul 10Aug‐Sep 10Oct‐Nov 10Dec 10‐Jan 11Feb‐Mar 11Apr‐May 11Jun‐Jul 11


0.0%

1.0%

2.0%

3.0%

4.0%

20 30 40 50 60 70 80 90 100

GVW (Kips)

4 0%

5.0%

6.0%

7.0%

8.0%

9.0%

10.0%

Freq

uency

Figure 17 ‐Monthly Class 9 GVW Histogram ‐ Lane 4 (WB Driving)

Aug‐10Sep‐10Oct‐10Nov‐10Dec‐10Jan‐11Feb‐11Mar‐11Apr‐11May‐11Jun‐11Jul‐11


0.0%

1.0%

2.0%

3.0%

4.0%

20 30 40 50 60 70 80 90 100

GVW (Kips)

70

75

80

85

90

95

100

30

35

40

Load

ed (K

ips)

Unloa

ded (Kips)

Figure 18 ‐ Unloaded and Loaded Peaks by Lane vs. Date

Lane 1 ‐ Unloaded Peak Lane 2 ‐ Unloaded PeakLane 3 ‐ Unloaded Peak Lane 4 ‐ Unloaded PeakLane 1 ‐ Loaded Peak Lane 2 ‐ Loaded PeakLane 3 ‐ Loaded Peak Lane 4 ‐ Loaded Peak

50

55

60

65

20

25

8/12/10

8/19/10

8/26/10

9/2/10

9/9/10

9/16/10

9/23/10

9/30/10

10/7/10

10/14/10

10/21/10

10/28/10

11/4/10

11/11/10

11/18/10

11/25/10

12/2/10

12/9/10

12/16/10

12/23/10

12/30/10

1/6/11

1/13/11

1/20/11

1/27/11

2/3/11

2/10/11

2/17/11

2/24/11

3/3/11

3/10/11

3/17/11

3/24/11

3/31/11

4/7/11

4/14/11

4/21/11

4/28/11

5/5/11

5/12/11

5/19/11

5/26/11

6/2/11

6/9/11

6/16/11

6/23/11

6/30/11

7/7/11

7/14/11

7/21/11

7/28/11

8/4/11

8/11/11

wim #31 us 2, mp 8.0 fisher, mn july 2011 monthly report · difference between the 20-year besal...

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