WIM #37 I-94, MP OTSEGO, MN APRIL 2012 MONTHLY REPORT

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1 WIM #37 I-94, MP OTSEGO, MN APRIL 2012 MONTHLY REPORT

2 In order to understand the vehicle classes and groupings the Mn/DOT Vehicle Classification Scheme and the Vehicle Classification Groupings for Forecasting are shown on the TDA Data Products page at The WIM Monthly Reports are show at For the month of April 2012, the system was operating normally. The data in this report just uses the data that was collected for the month, no extrapolation. VOLUME WIM #37 on I-94 is located at mile post in Otsego. The WIM is only on the westbound (WB) side of I-94. There were 842,095 vehicles that passed in the WB direction for the month of April. The Average Daily Traffic (ADT) and Heavy Commercial Average Daily Traffic (HCADT) for the WB side in April 2012 were 28,070 and 3,859, respectively. Of the heavy commercial vehicles, the top two in volume were the Class 9 s and Class 5 s. Figure 1 shows the average number of vehicles versus the day of the week. The average numbers of vehicles peaked on Fridays and were lowest on Sundays. Figure 2 shows the passenger vehicles (Class 1, 2, and 3), and heavy commercial vehicles (Class 4 to 13) by lane versus hour of day. For April 2012, the WB passenger vehicles peaked between 2 pm and 7 pm. The passenger vehicles were reviewed for volume differences between lanes and surprisingly there were more passenger vehicles in the passing lane than in the driving lane. For April 2012, the WB heavy commercial vehicles had a peak between 9 am and 3 pm. The heavy commercial vehicles were reviewed for volume differences between lanes and over 79% of the heavy commercial vehicles were in the driving lane. VEHICLE CLASSIFICATION The monthly traffic volume consisted of 726,316 passenger vehicles (86.3%) and 115,779 heavy commercial vehicles (13.7%). Table 1 summarizes vehicle class volumes and percentages; and overweight vehicles and the percentages as compared to total overweight vehicles. OVERWEIGHT VEHICLES The normal 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 April 2012 was 842,095 and 115,779, respectively. The total number of vehicles that were overweight was 24,339 or 2.9% of the total traffic or 21.0% of the heavy commercial vehicles. Figure 1 shows the average number of overweight vehicles versus day of the week. The average numbers of overweight vehicles for WB peaked on Wednesdays and were lowest on the weekends. The top two overweight violators by class were the Class 9 s and the Class 10 s. Overweight vehicles by class versus hour of the day are shown in Figure 3. The 1 P age

3 Class 9 overweight vehicles peaked from 9 am to 4 pm. Figure 4 shows the total overweight vehicles versus hour of the day. Comparing Figures 3 and 4 it is evident that the overweight Class 9 vehicles greatly affect the total number of overweight vehicles. Figure 4 also shows that for April 2012, over 91% of the overweight vehicles are in the driving lane as compared to the passing lane. Chart 1 shows the number of vehicles that crossed the WIM that weighed more than 88,000 pounds for the last 12 months. Although the chart is missing data from May through early July 2011, it shows that there were a large number of overweight vehicles in February through April Figure 5 shows the gross vehicle weight for Class 9 s, 10 s, and 6 s. From Figure 5 it is apparent that the Class 6 s had more empty than full vehicles and the Class 9 s and 10 s had more full than empty vehicles. For weight enforcement the WIMs are a screening tool. Currently, piezo-quartz WIM systems are considered to be accurate within 5% to 10% on Gross Vehicle Weight (GVW). During normal load limits and with an accuracy of about 10% anything over a GVW of 88,000 pounds is overweight. These may still be permitted loads. 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 WB direction during the normal load limits there were 1,748 vehicles over 88,000 pounds, 1,272 were Class 9 s and 246 were Class 10 s. Table 2 summarizes the Top 10 Gross Vehicle Weight for Class 9 and Class 10 vehicles for the month of April SPEED The speed limit on I-94 at the WIM site is 70 mph. For April 2012 for both WB lanes, WIM #37 recorded an average speed of 71 mph, the median speed was 71 mph, and the 85 th percentile speed was 76 mph. Table 3 summarizes the vehicle data for the Top 20 speeders that crossed WIM #37 in the month of April. The speed of the Top 20 ranged from 98 mph up to 122 mph. Figure 6 shows the average speed of passenger vehicles and heavy commercial vehicles in both the WB driving and passing lane. As expected the slowest vehicles are the heavy commercial vehicles in the driving lane and the fastest vehicles are the passenger vehicles in the passing lane. Depending on the hour of the day there is between a 6 and 8 mph difference between the average slowest vehicles and the average fastest vehicles. Figure 7 shows the average speed versus the day of the month. For April 2012 the average speeds generally varied between 63 mph and 74 mph. Figure 8 shows the average speed by lane. The WB passing lane was consistently about 3 to 4 mph faster than the driving lanes. BRIDGE Bridge No is approximately 1.2 miles east of WIM #37 and Bridge No is approximately 4.7 miles west of WIM #37. For the month of April 2012, WIM #37 saw 842,095 vehicles and measured a total weight of 8,331,000 kips (1 kip = 1,000 pounds). Figure 9 summarizes the total gross vehicle weight (GVW) by lane and class and Figure 2 P age

4 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 April 2012 a total of 121,146 ESALs passed over the pavement on WB I-94 at WIM #37. Approximately 86.2% (104,432) of the ESALs were in the driving lane. 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 84.8% of the ESALs while they are only 56.2% of the total gross vehicle weight. 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 2 lanes for April 2012, the largest number of ESALs is in Lane 1, the WB driving lane. Therefore, the design lane would be the WB driving lane and the growth factor for this section of I-94 in Wright County is 2.9%. In April, for the WB driving lane, there were 14,061 Class 9 trucks and 1,189 Class 10 trucks over 80,000 pounds. These 15,250 vehicles generated 51,610 ESALs. If all of these trucks weighed just 80,000 pounds they would have generated 39,306 ESALs, 12,304 ESALs lower. If you take the April WB driving lane ESALs of 104,432 and multiply it by 12 to get an annual ESAL number, apply a growth factor of 2.9% for 20 years (1.58) and then multiply it by 20 to get a 20-year BESAL you get 39,601,000. If you go through the same process but start with a monthly value of 92,128, i.e. subtracting out all of the overweight Class 9 and 10 vehicles, you come up with 34,935, year BESALs. If you take the difference between the 20-year BESAL and divide that by 104,432, the BESALs with the overweight Class 9 s and 10 s you get 44.68, or the overweight Class 9 s and 10 s cause the pavement to reach its 20-year design life over 3 ½ 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 weight of freight we will add additional legal-weight trucks so that the total weight being shipped stays the same. FREIGHT For WIM #37 for April 2012, it was calculated that approximately 1,418,000 tons of freight crossed the sensors going WB on I-94. Table 6 summarizes the number of vehicles by class and the number of empty vehicles. Table 6 and Figure 13 summarize the freight shipment by class and tonnage. CALIBRATION Because of the unique location of WIM #37 at MnROAD the test truck passes over the system every few weeks when it goes to get fuel. Because there were sensor failures and 3 P age

5 difficulties with communicating with the controller, calibration of WIM #37 did not occur until November 28, The most recent calibration occurred on January 10, 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 for Class 3 s were slightly outside the range in Lane 1. In Table 8, the front axle weight for all three Classes in both lanes is currently within the range. Past WIM research indicates that an unloaded Class 9 should weigh 28 to 32 kips. Data from this 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 and 15 shows histograms of the monthly GVW of Class 9 s for the last 12 months for Lanes 1 and 2, respectively. Figure 16 is a graph of the unloaded and loaded peaks by lane versus date. There are enough Class 9 s in Lanes 1 and 2 that a semiweekly histogram can be developed. So far WIM #37 is working fine and is generally staying in the calibration range. SUMMARY For April 2012, the average volume for WB I-94 peaked on Fridays. The overweight vehicles peaked on Wednesdays and were lowest during the weekend. The overweight vehicles peaked from 9 am to 4 pm. For April 2012, for the Class 9 s, 25.6% of them were overweight, and for the Class 10 s, 32.8% of them were overweight. It appears that there are slight differences in speeds based on vehicle class, lane, and hour of the day. As expected, the GVW was higher in the driving lane versus the passing lane, 6,146,000 and 2,185,000; respectively. Also as expected, the ESALs were higher in the driving lane versus the passing lane, 104,432 and 16,714, respectively. For April 2012 approximately 1,418,000 tons of freight was shipped WB on I-94 at WIM #37. For April the overweight Class 9 s and 10 s were shortening the 20-year BESAL design life by over 44 months. 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 Table 7 Gross Vehicle Weight by Class and Lane Table 8 Front Axle Weight by Class and Lane 4 P age

6 Table 9 Site Summary Chart 1 Histogram of Vehicles Over 88,000 Pounds for Last 12 Months 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 vs. Hour of the Day Figure 5 Class 9 s, 10 s, and 6 s 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 Month Figure 8 Average Speed by Lane vs. Hour of the Day Figure 9 Total Gross Vehicle Weight by Class and Lane 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 Class Figure 14 Monthly Class 9 GVW Histogram Lane 1 (WB Driving) Figure 15 - Monthly Class 9 GVW Histogram Lane 2 (WB Passing) Figure 16 Unloaded and Loaded Peaks by Lane vs. Date To request information from this document in an alternative format, please contact the Affirmative Action Office at or (Greater Minnesota); 711 or (Minnesota Relay). You may also send an to ADArequest.dot@state.mn.us. (Please request at least one week in advance). 5 P age

7 TABLE 1 - VEHICLE CLASSIFICATION DATA WIM #37 - OTSEGO April 2012 MONTHLY MONTHLY MONTHLY MONTHLY AVERAGE MONTHLY TOTAL TOTAL TOTAL VEHICLE DAILY TOTAL VOLUME OVERWEIGHT OVERWEIGHT CLASS VOLUME VOLUME PERCENTAGE VEHICLES PERCENTAGE C % 0 0.0% C2 17, , % 0 0.0% C3 6, , % 0 0.0% C4 84 2, % % C , % % C , % % C % % C , % % C9 2,774 83, % 21, % C , % 1, % C , % % C % % C % % TOTAL = 28, , % 24, % TABLE 2 - TOP 10 GROSS VEHICLE WEIGHT, CLASS 9 AND CLASS 10 WIM #37 - OTSEGO April 2012 DAY OF VEHICLE GVW DATE WEEK TIME CLASS DIRECTION LANE (lbs) 4/24/12 Tuesday 19:20:22 10 Westbound 1 144,000 4/23/12 Monday 9:56:11 10 Westbound 1 140,000 4/13/12 Friday 7:19:26 10 Westbound 1 136,000 4/13/12 Friday 12:43:55 10 Westbound 1 133,000 4/11/12 Wednesday 10:04:11 10 Westbound 1 133,000 4/19/12 Thursday 21:58:55 10 Westbound 1 131,000 4/18/12 Wednesday 14:08:15 10 Westbound 2 129,000 4/11/12 Wednesday 16:22:06 9 Westbound 1 128,000 4/18/12 Wednesday 12:48:57 10 Westbound 1 127,000 4/15/12 Sunday 17:14:03 10 Westbound 1 126,000

8 TABLE 3 - TOP 20 SPEEDERS WIM #37 - OTSEGO April 2012 DAY OF VEHICLE SPEED DATE WEEK TIME CLASS DIRECTION LANE (mph) 4/13/12 Friday 5:05:38 2 Westbound /27/12 Friday 21:30:38 2 Westbound /13/12 Friday 16:23:59 2 Westbound /27/12 Friday 22:42:20 2 Westbound /29/12 Sunday 1:33:19 2 Westbound /6/12 Friday 19:05:26 2 Westbound /7/12 Saturday 2:05:55 2 Westbound /25/12 Wednesday 20:12:01 2 Westbound /27/12 Friday 19:45:16 2 Westbound /1/12 Sunday 22:41:07 2 Westbound /22/12 Sunday 10:29:57 2 Westbound /3/12 Tuesday 2:28:30 2 Westbound /1/12 Sunday 14:31:02 2 Westbound /21/12 Saturday 1:24:56 2 Westbound /3/12 Tuesday 23:31:19 2 Westbound /21/12 Saturday 23:47:11 2 Westbound /30/12 Monday 2:22:25 3 Westbound /16/12 Monday 18:56:20 2 Westbound /16/12 Monday 19:21:40 2 Westbound /23/12 Monday 20:19:11 2 Westbound 2 98 TABLE 4 - GROSS VEHICLE WEIGHT BY CLASS AND LANE WIM #37 - OTSEGO April 2012 WB WB DRIVING PASSING VEHICLE LANE LANE TOTAL CLASS (Kips) (Kips) (Kips) PERCENTAGE C % C2 846, ,608 1,645, % C3 558, ,910 1,006, % C4 29,383 9,425 38, % C5 160,480 44, , % C6 79,723 37, , % C7 31,733 4,322 36, % C8 115,577 17, , % C9 3,941, ,165 4,680, % C10 204,939 65, , % C11 119,419 10, , % C12 48,984 8,415 57, % C13 9,088 1,982 11, % TOTAL = 6,145,558 2,185,122 8,330, % GVW/LANE = 73.8% 26.2%

9 TABLE 5 - ESALs BY CLASS AND LANE AND FLEXIBLE ESAL FACTORS WIM #37 - OTSEGO April 2012 WB WB FLEXIBLE VEHICLE DRIVING PASSING ESAL CLASS LANE LANE TOTAL PERCENTAGE FACTOR C % C % C % C % 0.70 C5 2, , % 0.17 C6 1, , % 0.40 C % 1.08 C8 1, , % 0.43 C9 88,932 13, , % 1.00 C10 3, , % 0.96 C11 3, , % 1.32 C , % 0.92 C % 2.92 TOTAL = 104,432 16, , % ESALS/LANE = 86.2% 13.8% TABLE 6 - FREIGHT SUMMARY WIM #37 - OTSEGO April 2012 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) C , % 71,641 4,592 17,115 C ,519 1, % 204,873 11,687 49,029 C , % 138,962 10,274 26,126 C % 38, ,353 C ,292 1, % 109,208 30,123 10,945 C ,221 6, % 5,063, ,230 1,168,094 C , % 288,802 9,265 74,594 C , % 137,790 1,131 28,818 C % 61, ,084 C % 42, ,628 TOTAL = 115,696 10, % 6,157, ,417,785

10 TABLE 7 - GROSS VEHICLE WEIGHT BY CLASS AND LANE WIM #37 - OTSEGO April 2012 VEHICLE LANE 1 GVW LANE 2 GVW MONTH CLASS (Kips) ± 5% (Kips) ± 5% May 11 C Jun Jul Aug Sep % Oct % % Nov % % Dec Jan % % Feb Mar % % Apr % % May 11 C Jun Jul Aug Sep % Oct % % Nov % % Dec Jan % % Feb Mar % % Apr % % TABLE 8 - FRONT AXLE WEIGHT BY CLASS AND LANE WIM #37 - OTSEGO April 2012 VEHICLE LANE 1 FRONT AXLE LANE 2 FRONT AXLE MONTH CLASS (Kips) ± 9% (Kips) ± 9% May 11 C Jun Jul Aug Sep % Oct % % Nov % % Dec Jan % % Feb Mar % % Apr % % May 11 C Jun Jul Aug Sep % Oct % % Nov % % Dec Jan % % Feb Mar % % Apr % % May 11 C Jun Jul Aug Sep % Oct % % Nov % % Dec Jan % % Feb Mar % % Apr % %

11 TABLE 9 - SITE SUMMARY WIM #37 - OTSEGO April 2012 V O L U M E & V E H I C L E C L A S S WB WB HEAVY HEAVY WB WB HEAVY HEAVY COMMERCIAL COMMERCIAL WB WB WB PASSENGER PASSENGER COMMERCIAL COMMERCIAL VEHICLES IN VEHICLES IN TOTAL MONTHLY MONTHLY VEHICLES VEHICLES VEHICLES VEHICLES DRIVING LANE PASSING LANE MONTH VOLUME ADT HCADT # % # % % % May Jun Jul Aug Sep ,478 30,216 4, , % 120, % 76.3% 23.7% Oct ,101 28,777 4, , % 125, % 76.7% 23.3% Nov ,156 27,172 3, , % 108, % 79.6% 20.4% Dec ,223 26,523 3, , % 104, % 79.6% 20.4% Jan ,902 23,545 3, , % 100, % 80.7% 19.3% Feb ,428 23,681 3, , % 99, % 81.7% 18.3% Mar ,487 26,435 3, , % 111, % 80.6% 19.4% Apr ,095 28,070 3, , % 115, % 79.5% 20.5% TOTAL = 6,537, ,651, , AVERAGE = 817,234 26,802 3, , % 110, % 79.3% 20.7% E S A L S ESALS ESALS PAVEMENT WB WB LIFE SYSTEM SYSTEM DRIVING PASSING TOTAL DECREASE OPERATION OPERATION MONTH LANE LANE ESALS MONTHS * Days % May % Jun % Jul % Aug % Sep 11 79,293 10,814 90, % Oct 11 82,371 9,640 92, % Nov 11 72,431 8,952 81, % Dec 11 76,699 10,500 87, % Jan 12 69,716 11,622 81, % Feb 12 78,873 11,164 90, % Mar ,234 13, , % Apr ,432 16, , % TOTAL = 664,049 93, , AVERAGE = 83,006 11,662 94, % * Based on WLI of 88,000 lbs in effect until March 16, 2010 and then again starting January 21, 2012 and ending on March 9, 2012.

12 TABLE 9 - SITE SUMMARY (contd.) WIM #37 - OTSEGO April 2012 G R O S S V E H I C L E W E I G H T OVERWEIGHT/ GVW GVW TOTAL OVERWEIGHT/ HEAVY NUMBER NUMBER WB WB TOTAL NUMBER OF TOTAL COMMERCIAL OVER OVER DRIVING PASSING GVW O OVERWEIGHT VOLUME VOLUME 88,000 98,000 MONTH LANE LANE KIPS V V MONTH VEHICLES * % % LBS LBS May E E May Jun R H Jun Jul W I Jul Aug Aug E C Sep 11 5,715,027 2,118,839 7,833,866 Sep 11 11, % 9.8% 1, I L Oct 11 5,940,604 1,973,536 7,914,140 Oct 11 12, % 9.7% 1,329 1,090 Nov 11 5,384,451 1,880,020 7,264,471 G E Nov 11 9, % 9.1% Dec 11 5,406,508 1,911,683 7,318,191 H S Dec 11 15, % 14.9% 1, Jan 12 5,047,422 1,812,157 6,859,580 T Jan 12 10, % 10.7% Feb 12 5,181,242 1,708,404 6,889,646 Feb 12 12, % 12.7% 1, Mar 12 5,991,332 2,034,821 8,026,154 Mar 12 22, % 19.8% 1, Apr 12 6,145,558 2,185,122 8,330,681 Apr 12 24, % 21.0% 1, TOTAL = 44,812,145 15,624,584 60,436,729 TOTAL = 119, ,990 6,161 AVERAGE = 5,601,518 1,953,073 7,554,591 AVERAGE = 14, % 13.4% 1, * Based on WLI of 88,000 lbs in effect until March 16, 2010 and then again starting January 21, 2012 and ending on March 9, S P E E D 85th AVERAGE MEDIAN PERCENTILE WB SPEED SPEED SPEED FREIGHT MONTH (mph) (mph) (mph) MONTH TONS May May Jun F Jun Jul R Jul Aug E Aug Sep I Sep 11 1,204,679 Oct G Oct 11 1,294,747 Nov H Nov 11 1,088,332 Dec T Dec 11 1,120,558 Jan Jan 12 1,047,003 Feb Feb 12 1,093,696 Mar Mar 12 1,327,203 Apr Apr TOTAL = TOTAL = 9,594,003 AVERAGE = AVERAGE = 1,199,250

13 Number of Vehicles 1,200 1, Apr 12 Mar 12 Feb 12 Jan 12 Dec 11 Nov 11 Oct 11 Sep 11 Aug 11 Jul 11 Jun 11 May 11 Chart 1 Histogram of Vehicles Over 88,000 Pounds for Last 12 Months >100 Vehicle Weight (Kips) Vehicle Weights (Kips) Apr-12 Mar-12 Feb-12 Jan-12 Dec-11 Nov-11 Oct-11 Sep-11 Aug-11 Jul-11 Jun-11 May > , TOTAL = 1,744 1,482 1, , ,327 1,041 1, * ** ** * System down from July 1st until July 9th. ** System down for entire month.

14 Average Number of Vehicles Average Number of Overweight Vehicles 30,000 Figure 1 - Average Volume and Average Overweight Volume vs. Day of the Week Average Number of Vehicles Average Number of Overweight Vehicles 1,200 25,000 1,000 20, , , , Sunday Monday Tuesday Wednesday Thursday Friday Saturday Day of the Week 0

15 Passenger Vehicles Heavy Commercial Vehicles 50,000 45,000 40,000 Figure 2 - Passenger and Heavy Commercial Vehicles vs. Hour of the Day WB Passenger Vehicles - Driving Lane WB Passenger Vehicles - Passing Lane WB Heavy Commercial Vehicles - Driving Lane WB Heavy Commercial Vehicles - Passing Lane 7,000 6,000 35,000 5,000 30,000 4,000 25,000 20,000 3,000 15,000 2,000 10,000 5,000 1, Hour of the Day

16 Overweight Vehicles 1,600 1,400 1,200 1, Figure 3 - Overweight Vehicles by Class vs. Hour of the Day C4 C5 C6 C7 C8 C9 C10 C11 C12 C Hour of the Day

17 Overweight Vehicles 2,000 1,800 Figure 4 - Overweight Vehicles vs. Hour of the Day Total Overweight Vehicles Driving Lane Passing Lane 1,600 1,400 1,200 1, Hour of the Day

18 6,000 Figure 5 - Class 9's, 10's and 6's vs. Gross Vehicle Weight WB Class 9 WB Class 10 WB Class , , Vehicles, Class 9 3,000 2, Vehicles, Class 6 and 10 1, Weight (Kips)

19 Speed (mpd) 80 Figure 6 - Average Speed by Lane and Vehicle Type vs. Hour of the Day Driving Lane - Passenger Vehicles Passing Lane - Passenger Vehicles Driving Lane - Heavy Commercial Vehicles Passing Lane - Heavy Commercial Vehicles :00 2:00 4:00 6:00 8:00 10:00 12:00 14:00 16:00 18:00 20:00 22:00 Hour

20 Figure 7 - Average Speed vs. Day of Month Speed (mph) /1 4/8 4/15 4/22 4/29 5/6 Date

21 Speed (mpd) 80 Figure 8 - Average Speed by Lane vs. Hour of the Day Lane 1 - WB Driving Lane 2 - WB Passing :00 2:00 4:00 6:00 8:00 10:00 12:00 14:00 16:00 18:00 20:00 22:00 Hour

22 Total Gross Weight (Kips) Figure 9 - Total Gross Vehicle Weight by Class and Lane 4,500,000 WB Driving Lane WB Passing Lane 4,000,000 3,500,000 3,000,000 2,500,000 2,000,000 1,500,000 1,000, ,000 0 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 Vehicle Class

23 Figure 10 - Total Gross Vehicle Weight by Class C10 3.2% C11 1.6% C12 0.7% C13 0.1% C1 0.0% C2 19.8% C3 12.1% C9 56.2% C8 1.6% C7 0.4% C6 1.4% C4 0.5% C5 2.5%

24 ESALs Figure 11 - Total ESALs by Class and Lane 100,000 WB Driving Lane WB Passing Lane 90,000 80,000 70,000 60,000 50,000 40,000 30,000 20,000 10,000 0 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 Vehicle Class

25 C10 3.6% C11 3.0% Figure 12 - ESALs by Class C12 0.8% C13 0.3% C1 0.0% C2 0.2% C3 0.3% C4 0.8% C5 2.3% C6 1.6% C7 0.7% C8 1.6% C9 84.8%

26 Figure 13 - Freight Tonnage and Percentage by Class C10 74,594 5% C11 28,818 2% C12 14,084 1% C13 13,628 1% C4 17,115 1% C5 49,029 4% C6 26,126 2% C7 15,353 1% C8 10,945 1% C9 1,168,094 82%

27 5.5% 5.0% 4.5% 4.0% 3.5% Figure 14 - Monthly Class 9 GVW Histogram - Lane 1 (WB Driving) Unloaded Peak Kips Dec-10 Jan-11 Feb-11 Aug-11 Sep-11 Oct-11 Nov-11 Dec-11 Jan-12 Feb-12 Mar-12 Apr-12 Frequency 3.0% 2.5% 2.0% 1.5% 1.0% 0.5% 0.0% GVW (Kips)

28 5.5% 5.0% 4.5% 4.0% 3.5% Figure 15 - Monthly Class 9 GVW Histogram - Lane 2 (WB Passing) Unload Peak Kips Dec-10 Jan-11 Feb-11 Aug-11 Sep-11 Oct-11 Nov-11 Dec-11 Jan-12 Feb-12 Mar-12 Apr-12 Frequency 3.0% 2.5% 2.0% 1.5% 1.0% 0.5% 0.0% GVW (Kips)

29 40 Figure 16 - Unloaded and Loaded Peaks by Lane vs. Date Lane 1 - Unloaded Peak Lane 2 - Unloaded Peak Lane 1 - Loaded Peak Lane 2 - Loaded Peak /4/11 5/18/11 6/1/11 6/15/11 6/29/11 7/13/11 7/27/11 8/10/11 8/24/11 9/7/11 9/21/11 10/5/11 10/19/11 11/2/11 11/16/11 11/30/11 12/14/11 12/28/11 1/11/12 1/25/12 2/8/12 2/22/12 3/7/12 3/21/12 4/4/12 4/18/12 5/2/12 Unloaded (Kips) Loaded (Kips)