wim #42 us 61, mp 119.6 cottage grove, minnesota october … · october. the average daily traffic...

WIM #42 US 61, MP 119.6 COTTAGE GROVE, MINNESOTA OCTOBER 2012

MONTHLY REPORT

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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 http://www.dot.state.mn.us/traffic/data/data-products.html#weight The WIM Monthly Reports are show at http://www.dot.state.mn.us/traffic/data/reports-monthly-wim.html For the month of October 2012, the system appeared to be operating normally. The data in this report uses the data that was collected for the month, no other extrapolation was performed. VOLUME For WIM #42 on US 61 at mile post 119.6 in Denmark Township near the City of Cottage Grove, there were 925,581 vehicles that passed the site for the month of October. The Average Daily Traffic (ADT) and Heavy Commercial Average Daily Traffic (HCADT) for October 2012 were 29,857 and 1,456, respectively. Of the heavy commercial vehicles, the top two in volume were the Class 9’s and 5’s. Figure 1 shows the average number of vehicles, broken down by direction, versus day of the week. The average numbers of vehicles for northbound (NB) and southbound (SB) peaked on Fridays and was lowest on Sundays. Figure 2 shows the passenger vehicles (Class 1, 2, and 3), and heavy commercial vehicles (Class 4 to 13) by direction versus hour of day. For October the NB passenger vehicles had a small peak between 7 am and 9 am and between 3 pm and 7 pm and the SB passenger vehicles had a larger peak between 3 pm and 8 pm. The passenger vehicles were reviewed for directional volume differences and it appears that there were slightly more going in the NB direction. For October the NB heavy commercial had a peak between 7 am and 5 pm and the SB heavy commercial vehicles had a peak between 8 am and 5 pm. It appears that more heavy commercial vehicles were going NB. VEHICLE CLASSIFICATION The traffic volume consisted of 880,453 passenger vehicles (95.1%) and 45,128 heavy commercial vehicles (4.9%). 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 October 2012 was 925,581 and 45,128, respectively. The total number of overweight violations was 5,310 or 0.6% of the total traffic or 11.8% of the heavy commercial vehicles. Figure 1 shows the average number of overweight vehicles, broken down by direction, versus day of the week. The average numbers of overweight vehicles for NB peaked on Mondays and

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SB peaked on Wednesdays and for both directions they 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 Class 9 overweight vehicles peaked between 7 am and 7 pm. The overweight vehicles were also reviewed to determine if there is a NB and SB difference. Figure 4 shows the total, NB, and SB overweight vehicles versus hour of the day. Figure 4 shows that for October 2012, over 67% of the overweight vehicles were going NB. Chart 1 shows the number of vehicles during the last three months that crossed the WIM weighing more than 88,000 pounds. For August, there were still 120 vehicles that crossed the WIM that weighed more than 100,000 pounds. That number decreased to 56 for September and 35 for October. Figure 5 shows the gross vehicle weight for Class 9’s and 10’s in both the NB and SB direction. From Figure 5 it is apparent that the Class 9’s had more empty than full vehicles in both directions. The Class 10’s had more full vehicles than empty vehicles going NB and more empty than full vehicles going SB. 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. 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 NB direction during the normal load limits there were 740 vehicles over 88,000 pounds, 584 were Class 9’s and 98 were Class 10’s. In the SB direction during the normal load limits there were 40 vehicles over 88,000 pounds, 17 were Class 9’s and 14 were Class 10’s. Table 2 summarizes the Top 10 Gross Vehicle Weight for Class 9 and Class 10 vehicles for the month of October 2012. SPEED The speed limit on US 61 NB at the WIM site is 50 mph. The speed limit on US 61 SB at the WIM site is 60 mph. For October 2012 for all four lanes, WIM #42 recorded an average speed of 61 mph, the median speed was 61 mph, and the 85th percentile speed was 66 mph. Table 3 summarizes the vehicle data for the Top 20 speeders that crossed WIM #42 in the month of October. The speed of the Top 20 ranged from 91 mph up to 111 mph. It is interesting to note that it looks like 2 in the Top 20 may have been racing. Two vehicles went over the sensors SB in Lanes 3 and 4 on Saturday, October 6th at 11:21:32 am going 99 and 102 mph, respectively. Figure 6 shows the average speed of passenger vehicles and heavy commercial vehicles in both the NB and SB direction by lane. The slowest vehicles were the heavy commercial vehicles in the driving lanes. The fastest vehicles were the passenger vehicles in the passing lanes. Depending on the hour of the day there is between a 8 and 11 mph difference between the average slowest vehicles and the average fastest vehicles going in the same direction. Figure 7 shows the average speed versus the day of the month. For October 2012 the average speeds generally varied between 57 mph and 65 mph. The slowest speed generally occurred between midnight and 6 am and the fastest speed occurred around 6 pm. Figure 8 shows

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the average speed by lane. The NB passing lane is consistently about 1 to 2 mph faster than the other lanes. BRIDGE The Hastings Bridge No. 5895 is approximately 1.9 miles south of WIM #42, and Bridge No. 82J16 is 1.0 miles north of WIM #42. For the month of October 2012, WIM #42 saw 925,581 vehicles with a total weight of 5,261,000 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 October 2012 a total of 28,893 ESALs passed over the pavement at WIM #42. Approximately 84.1% of the ESALs were in the driving lane, 55.4% NB and 28.7% SB. 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 63.1% of the ESALs while they are only 18.2% 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 4 lanes for October 2012, the largest number of ESALs is in Lane 1, the NB driving lane. Therefore, the design lane would be the NB driving lane and the growth factor for this section of US 61 in Washington County is 1.2%. In October, for the NB driving lane, there were 1,768 Class 9 trucks and 291 Class 10 trucks over 80,000 pounds. These 2,059 vehicles generated 6,953 ESALs. If all of these trucks weighed just 80,000 pounds they would have generated 5,119 ESALs, 1,835 ESALs lower. If you take the October NB driving lane ESALs of 15,993 and multiply it by 12 to get an annual ESAL number, apply a growth factor of 1.2% for 20 years (1.24) and then multiply it by 20 to get a 20-year BESAL you get 4,759,000. If you go through the same process but start with a monthly value of 14,158, i.e. subtracting out all of the overweight Class 9 and 10 vehicles, you come up with 4,213,000 20-year BESALs. If you take the difference between the 20-year BESAL and divide that by 15,993, the BESALs with the overweight Class 9’s and 10’s you get 34.14, or the overweight Class 9’s and 10’s cause the pavement to reach its 20-year design life over 34 months 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.

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FREIGHT For WIM #42 for October 2012, it was calculated that approximately 326,000 tons of freight crossed the sensors. More freight was shipped NB (177,000 tons) versus SB (149,000 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. CALIBRATION 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 within the range for both classes in all four lanes. In Table 8 the front axle weight was within the range for all three Classes in all four lanes. 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 shows histograms of the monthly GVW of Class 9’s for the last 12 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 Lane 2 about 4 weeks of data is needed and for Lane 3 about 2 weeks of data is needed to develop a clear histogram. These figures indicate that WIM 32 is in the calibration range. We will coordinate with MnROAD personnel to schedule the test truck to go to the site and perform a complete calibration of all four lanes. SUMMARY For October 2012, the average volume NB and SB peaked on Fridays and for both directions the volume was lowest on Sundays. The overweight vehicles for NB peaked on Mondays and for SB they peaked on Wednesdays and were lowest on the weekends for both directions. Over 67% of overweight vehicles were going NB. The overweight vehicles peaked from 7 am to 5 pm. For October 2012, for the Class 9’s, 17.5% of them were overweight and for the Class 10’s, 27.3% of them were overweight. The speed of the traffic varies slightly based on vehicle class, lane, and hour of the day. The GVW was higher in the NB direction 2,717,000 kips versus 2,544,000 kips SB. This agrees with the ESALs and the freight data. The NB ESALs were higher 16,768 versus 12,124 SB. The tonnage of freight was higher in the NB direction 177,000 versus 149,000 SB. For October 2012, the overweight Class 9’s and 10’s were shortening the 20-year BESAL design life by over 34 months. Table 9 provides a monthly summary of some of the key data for the site during the last three months.

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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 Table 9 – Site Summary Chart 1 – Histogram of Vehicles Over 88,000 Pounds for Last Three 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 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 Month Figure 8 – Average Speed by Lane and Direction 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 Direction and Class Figure 14 – Monthly Class 9 GVW Histogram – Lane 1 (NB Driving) Figure 15 – Monthly Class 9 GVW Histogram – Lane 2 (NB Passing) Figure 16 – Monthly Class 9 GVW Histogram – Lane 3 (SB Passing) Figure 17 – Monthly Class 9 GVW Histogram – Lane 4 (SB Driving) Figure 18 – Unloaded and Loaded Peaks by Lane vs. Date To request this document in an alternative format, please contact the Affirmative Action Office at 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).

MONTHLY MONTHLY MONTHLY MONTHLY

AVERAGE MONTHLY TOTAL TOTAL TOTAL

VEHICLE DAILY TOTAL VOLUME OVERWEIGHT OVERWEIGHT

CLASS VOLUME VOLUME PERCENTAGE VEHICLES PERCENTAGE

C1 18 555 0.1% 0 0.0%

C2 20,567 637,563 68.9% 0 0.0%

C3 7,817 242,335 26.2% 0 0.0%

C4 39 1,213 0.1% 93 1.8%

C5 449 13,908 1.5% 205 3.9%

C6 143 4,436 0.5% 416 7.8%

C7 13 414 0.0% 234 4.4%

C8 91 2,809 0.3% 130 2.4%

C9 657 20,378 2.2% 3,576 67.3%

C10 51 1,569 0.2% 428 8.1%

C11 1 33 0.0% 0 0.0%

C12 5 144 0.0% 80 1.5%

C13 7 224 0.0% 148 2.8%

TOTAL = 29,857 925,581 100.0% 5,310 100.0%

DAY OF VEHICLE GVW

DATE WEEK TIME CLASS DIRECTION LANE (lbs)

10/10/12 Wednesday 17:32:17 10 Northbound 1 130,000


10/19/12 Friday 6:40:09 9 Northbound 1 117,000



10/29/12 Monday 12:51:31 10 Southbound 4 107,000





October 2012

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

TABLE 1 - VEHICLE CLASSIFICATION DATA

WIM #42 - COTTAGE GROVE

October 2012


DAY OF VEHICLE SPEED

DATE WEEK TIME CLASS DIRECTION LANE (mph)

10/3/12 Wednesday 2:22:08 2 Southbound 3 111


10/6/12 Saturday 11:21:32 2 Southbound 4 102 *

10/30/12 Tuesday 17:42:04 2 Northbound 1 101

10/6/12 Saturday 11:21:32 2 Southbound 3 99 *

10/13/12 Saturday 19:49:18 3 Northbound 1 99

10/10/12 Wednesday 20:24:28 2 Northbound 1 98

10/20/12 Saturday 19:24:20 2 Southbound 3 98


10/26/12 Friday 18:21:39 3 Southbound 3 96

10/7/12 Sunday 22:30:58 2 Northbound 2 94

10/18/12 Thursday 15:59:06 2 Southbound 3 94

10/26/12 Friday 18:21:39 3 Southbound 4 94

10/27/12 Saturday 9:21:02 2 Southbound 4 94

10/29/12 Monday 17:55:15 2 Northbound 1 94

10/13/12 Saturday 4:15:44 3 Northbound 1 93


10/28/12 Sunday 15:12:16 3 Southbound 3 93

10/9/12 Tuesday 16:08:09 3 Southbound 4 91

10/22/12 Monday 1:49:42 2 Northbound 1 91

* Appear to be racing?

NB NB SB SB

DRIVING PASSING PASSING DRIVING

VEHICLE LANE LANE LANE LANE TOTAL

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

C1 179 147 267 168 761 0.0%

C2 682,239 469,921 639,302 499,934 2,291,396 43.6%

C3 469,113 270,940 354,442 309,937 1,404,433 26.7%

C4 13,784 2,791 2,924 8,582 28,080 0.5%

C5 96,229 21,465 41,036 61,211 219,940 4.2%

C6 57,763 5,699 19,479 49,810 132,750 2.5%

C7 14,500 466 1,242 7,137 23,346 0.4%

C8 44,534 4,996 12,399 32,171 94,099 1.8%

C9 459,970 31,949 147,756 316,592 956,267 18.2%

C10 58,079 1,637 8,216 28,951 96,884 1.8%

C11 208 0 42 1,243 1,492 0.0%

C12 9,234 71 0 330 9,636 0.2%

C13 1,108 70 0 751 1,930 0.0%

TOTAL = 1,906,940 810,152 1,227,105 1,316,817 5,261,014 100.0%

GVW/LANE = 36.2% 15.4% 23.3% 25.0%

GVW/DIRECTION = 51.6% 48.4%

GVW/DIRECTION = 2,717,092 2,543,922

TABLE 3 - TOP 20 SPEEDERS


October 2012

October 2012


TABLE 4 - GROSS VEHICLE WEIGHT BY CLASS AND LANE

NB NB SB SB FLEXIBLEVEHICLE DRIVING PASSING PASSING DRIVING ESAL

CLASS LANE LANE LANE LANE TOTAL PERCENTAGE FACTORC1 0 0 0 0 0 0.0% 0.0004C2 113 70 99 72 353 1.2% 0.0006C3 195 94 129 113 530 1.8% 0.0022C4 385 54 53 154 646 2.2% 0.89C5 1,475 159 419 792 2,844 9.8% 0.19C6 1,432 85 316 777 2,611 9.0% 0.64C7 381 8 25 160 575 2.0% 1.53C8 751 42 124 371 1,290 4.5% 0.40C9 9,932 244 2,553 5,514 18,243 63.1% 0.98C10 1,014 17 108 308 1,447 5.0% 0.93C11 7 0 0 20 27 0.1% 0.94C12 269 1 0 6 276 1.0% 2.17C13 38 1 0 11 50 0.2% 2.51

TOTAL = 15,993 776 3,826 8,298 28,893 100.0%ESALS/LANE = 55.4% 2.7% 13.2% 28.7%

ESALS/DIRECTION = 58.0% 42.0%ESALS/DIRECTION = 16,768 12,124

WEIGHT OF TOTAL NUMBER PERCENTAGE TOTAL WEIGHT WEIGHT TOTALEMPTY NUMBER OF OF OF VEHICLES OF EMPTY WEIGHT OF

VEHICLE VEHICLE OF EMPTY EMPTY WITH FREIGHT VEHICLES FREIGHTCLASS (Kips) VEHICLES VEHICLES VEHICLES (Kips) (Kips) (Tons)

C4 15.0 695 73 10.5% 21,709 920 6,190C5 8.0 7,130 762 10.7% 104,284 5,470 26,670C6 19.0 1,977 193 9.8% 63,906 3,323 15,005C7 11.5 254 1 0.4% 16,639 10 6,865C8 31.0 1,379 592 42.9% 31,948 13,144 3,775C9 33.0 10,360 2,326 22.5% 461,289 66,718 98,083C10 33.5 797 83 10.4% 50,706 2,206 13,393C11 36.5 4 0 0.0% 254 0 54C12 36.5 136 0 0.0% 9,920 0 2,478C13 31.5 185 0 0.0% 15,582 0 4,877

TOTAL = 22,917 4,030 17.6% 776,235 -- 177,390

WEIGHT OF TOTAL NUMBER PERCENTAGE TOTAL WEIGHT WEIGHT TOTALEMPTY NUMBER OF OF OF VEHICLES OF EMPTY WEIGHT OF

VEHICLE VEHICLE OF EMPTY EMPTY WITH FREIGHT VEHICLES FREIGHTCLASS (Kips) VEHICLES VEHICLES VEHICLES (Kips) (Kips) (Tons)

C4 15.0 518 45 8.7% 15,521 555 4,213C5 8.0 6,778 966 14.3% 92,735 6,839 23,119C6 19.0 2,459 305 12.4% 70,376 5,103 14,725C7 11.5 160 1 0.6% 8,772 9 3,472C8 31.0 1,430 743 52.0% 25,908 17,154 2,306C9 33.0 10,018 3,491 34.8% 399,397 98,082 92,003C10 33.5 772 204 26.4% 34,851 6,156 7,911C11 36.5 29 3 10.3% 1,284 70 168C12 36.5 8 0 0.0% 525 0 117C13 31.5 39 0 0.0% 3,224 0 998

TOTAL = 22,211 5,758 25.9% 652,592 -- 149,031

GRAND TOTAL = 45,128 9,788 21.7% 1,428,827 -- 326,421

SOUTHBOUND

TABLE 6 - FREIGHT SUMMARYWIM #42 - COTTAGE GROVE

October 2012

TABLE 5 - ESALs BY CLASS AND LANE AND FLEXIBLE ESAL FACTORWIM #42 - COTTAGE GROVE

October 2012

NORTHBOUND

VEHICLE LANE 1 GVW LANE 2 GVW LANE 3 GVW LANE 4 GVWMONTH CLASS (Kips) ± 5% (Kips) ± 5% (Kips) ± 5% (Kips) ± 5%Nov 11 C2 -- -- -- -- -- -- -- --Dec 11 -- -- -- -- -- -- -- --Jan 12 -- -- -- -- -- -- -- --Feb 12 -- -- -- -- -- -- -- --Mar 12 -- -- -- -- -- -- -- --Apr 12 -- -- -- -- -- -- -- --May 12 -- -- -- -- -- -- -- --Jun 12 -- -- -- -- -- -- -- --Jul 12 -- -- -- -- -- -- -- --

Aug 12 3.99 -- 3.67 -- 3.61 -- 3.41 --Sep 12 3.96 -0.75% 3.61 -1.63% 3.59 -0.55% 3.35 -1.76%Oct 12 3.89 -2.51% 3.65 -0.54% 3.71 2.77% 3.53 3.52%Nov 11 C3 -- -- -- -- -- -- -- --Dec 11 -- -- -- -- -- -- -- --Jan 12 -- -- -- -- -- -- -- --Feb 12 -- -- -- -- -- -- -- --Mar 12 -- -- -- -- -- -- -- --Apr 12 -- -- -- -- -- -- -- --May 12 -- -- -- -- -- -- -- --Jun 12 -- -- -- -- -- -- -- --Jul 12 -- -- -- -- -- -- -- --

Aug 12 6.38 -- 5.60 -- 5.88 -- 5.72 --Sep 12 6.29 -1.41% 5.53 -1.25% 5.66 -3.74% 5.43 -5.07%Oct 12 6.11 -4.23% 5.55 -0.89% 5.74 -2.38% 5.59 -2.27%

VEHICLE LANE 1 FRONT AXLE LANE 2 FRONT AXLE LANE 3 FRONT AXLE LANE 4 FRONT AXLEMONTH CLASS (Kips) ± 9% (Kips) ± 9% (Kips) ± 9% (Kips) ± 9%Nov 11 C2 -- -- -- -- -- -- -- --Dec 11 -- -- -- -- -- -- -- --Jan 12 -- -- -- -- -- -- -- --Feb 12 -- -- -- -- -- -- -- --Mar 12 -- -- -- -- -- -- -- --Apr 12 -- -- -- -- -- -- -- --May 12 -- -- -- -- -- -- -- --Jun 12 -- -- -- -- -- -- -- --Jul 12 -- -- -- -- -- -- -- --

Aug 12 2.29 -- 2.13 -- 2.05 -- 1.93 --Sep 12 2.28 -0.44% 2.10 -1.41% 2.04 -0.49% 1.91 -1.04%Oct 12 2.25 -1.75% 2.13 0.00% 2.14 4.39% 2.02 4.66%Nov 11 C3 -- -- -- -- -- -- -- --Dec 11 -- -- -- -- -- -- -- --Jan 12 -- -- -- -- -- -- -- --Feb 12 -- -- -- -- -- -- -- --Mar 12 -- -- -- -- -- -- -- --Apr 12 -- -- -- -- -- -- -- --May 12 -- -- -- -- -- -- -- --Jun 12 -- -- -- -- -- -- -- --Jul 12 -- -- -- -- -- -- -- --

Aug 12 3.30 -- 3.03 -- 3.05 -- 2.85 --Sep 12 3.28 -0.61% 2.99 -1.32% 2.97 -2.62% 2.76 -3.16%Oct 12 3.18 -3.64% 3.00 -0.99% 3.05 0.00% 2.88 1.05%Nov 11 C9 -- -- -- -- -- -- -- --Dec 11 -- -- -- -- -- -- -- --Jan 12 -- -- -- -- -- -- -- --Feb 12 -- -- -- -- -- -- -- --Mar 12 -- -- -- -- -- -- -- --Apr 12 -- -- -- -- -- -- -- --May 12 -- -- -- -- -- -- -- --Jun 12 -- -- -- -- -- -- -- --Jul 12 -- -- -- -- -- -- -- --

Aug 12 11.29 -- 9.90 -- 10.09 -- 9.67 --Sep 12 11.35 0.53% 9.92 0.20% 10.11 0.20% 9.66 -0.10%Oct 12 10.82 -4.16% 9.80 -1.01% 10.35 2.58% 10.02 3.62%

October 2012

TABLE 7 - GROSS VEHICLE WEIGHT BY CLASS AND LANEWIM #42 - COTTAGE GROVE

October 2012

TABLE 8 - FRONT AXLE WEIGHT BY CLASS AND LANEWIM #42 - COTTAGE GROVE

HEAVY HEAVY

HEAVY HEAVY COMMERCIAL COMMERCIALPASSENGER PASSENGER COMMERCIAL COMMERCIAL VEHICLES IN VEHICLES IN

TOTAL MONTHLY MONTHLY VEHICLES VEHICLES VEHICLES VEHICLES DRIVING LANE PASSING LANEMONTH VOLUME ADT HCADT # % # % % %

Nov 11 -- -- -- -- -- -- -- -- --Dec 11 -- -- -- -- -- -- -- -- --Jan 12 -- -- -- -- -- -- -- -- --Feb 12 -- -- -- -- -- -- -- -- --Mar 12 -- -- -- -- -- -- -- -- --Apr 12 -- -- -- -- -- -- -- -- --May 12 -- -- -- -- -- -- -- -- --Jun 12 -- -- -- -- -- -- -- -- --Jul 12 -- -- -- -- -- -- -- -- --

Aug 12 972,627 31,375 1,395 929,372 95.6% 43,255 4.4% 74.1% 25.9%Sep 12 872,100 29,070 1,243 834,780 95.7% 37,320 4.3% 73.8% 26.2%Oct 12 925,581 29,857 1,456 880,453 95.1% 45,128 4.9% 75.6% 24.4%

TOTAL = 2,770,308 -- -- 2,644,605 -- 125,703 -- -- --AVERAGE = 923,436 30,101 1,365 881,535 95.5% 41,901 4.5% 74.5% 25.5%

ESALS ESALS ESALS ESALS DRIVING PASSING PAVEMENT

NB NB SB SB LANE LANE LIFEDRIVING PASSING PASSING DRIVING TOTAL ESALS ESALS DECREASE

MONTH LANE LANE LANE LANE ESALS % % MONTHS

Nov 11 -- -- -- -- -- -- -- --Dec 11 -- -- -- -- -- -- -- --Jan 12 -- -- -- -- -- -- -- --Feb 12 -- -- -- -- -- -- -- --Mar 12 -- -- -- -- -- -- -- --Apr 12 -- -- -- -- -- -- -- --May 12 -- -- -- -- -- -- -- --Jun 12 -- -- -- -- -- -- -- --Jul 12 -- -- -- -- -- -- -- --

Aug 12 17,930 857 3,717 6,197 28,701 84.1% 15.9% 40.6Sep 12 14,870 726 3,541 5,135 24,272 82.4% 17.6% 43.6Oct 12 15,993 776 3,826 8,298 28,893 84.1% 15.9% 34.1

TOTAL = 48,792 2,360 11,084 19,630 81,866 -- -- --AVERAGE = 16,264 787 3,695 6,543 27,289 83.5% 16.5% 39.5

ESALS

TABLE 9 - SITE SUMMARYWIM #42 - COTTAGE GROVE

October 2012

VOLUME

& VEHICLE

CLASS

OVERWEIGHT/

GVW GVW GVW GVW TOTAL OVERWEIGHT/ HEAVY NUMBER NUMBERNB NB SB SB TOTAL NUMBER OF TOTAL COMMERCIAL OVER OVER

DRIVING PASSING PASSING DRIVING GVW OVERWEIGHT VOLUME VOLUME 88,000 98,000MONTH LANE LANE LANE LANE KIPS MONTH VEHICLES % % LBS LBS

Nov 11 -- -- -- -- -- Nov 11 -- -- -- -- --Dec 11 -- -- -- -- -- Dec 11 -- -- -- -- --Jan 12 -- -- -- -- -- Jan 12 -- -- -- -- --Feb 12 -- -- -- -- -- Feb 12 -- -- -- -- --Mar 12 -- -- -- -- -- Mar 12 -- -- -- -- --Apr 12 -- -- -- -- -- Apr 12 -- -- -- -- --May 12 -- -- -- -- -- May 12 -- -- -- -- --Jun 12 -- -- -- -- -- Jun 12 -- -- -- -- --Jul 12 -- -- -- -- -- Jul 12 -- -- -- -- --

Aug 12 2,006,506 850,908 1,379,975 1,112,481 5,349,871 Aug 12 4,874 0.5% 11.3% 916 151Sep 12 1,770,366 734,248 1,234,847 970,091 4,709,552 Sep 12 4,208 0.5% 11.3% 906 76Oct 12 1,906,940 810,152 1,227,105 1,316,817 5,261,014 Oct 12 5,310 0.6% 11.8% 780 49

TOTAL = 5,683,813 2,395,307 3,841,927 3,399,389 15,320,436 TOTAL = 14,392 -- -- 2,602 276AVERAGE = 1,894,604 798,436 1,280,642 1,133,130 5,106,812 AVERAGE = 4,797 0.5% 11.4% 867 92

85th

AVERAGE MEDIAN PERCENTILE SYSTEM SYSTEM NB SB TOTAL NB SBSPEED SPEED SPEED OPERATION OPERATION FREIGHT FREIGHT FREIGHT FREIGHT FREIGHT

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

Nov 11 -- -- -- -- -- Nov 11 -- -- -- -- --Dec 11 -- -- -- -- -- Dec 11 -- -- -- -- --Jan 12 -- -- -- -- -- Jan 12 -- -- -- -- --Feb 12 -- -- -- -- -- Feb 12 -- -- -- -- --Mar 12 -- -- -- -- -- Mar 12 -- -- -- -- --Apr 12 -- -- -- -- -- Apr 12 -- -- -- -- --May 12 -- -- -- -- -- May 12 -- -- -- -- --Jun 12 -- -- -- -- -- Jun 12 -- -- -- -- --Jul 12 -- -- -- -- -- Jul 12 -- -- -- -- --

Aug 12 59 60 65 31 100.0% Aug 12 190,382 131,757 322,139 59.1% 40.9%Sep 12 60 60 66 30 100.0% Sep 12 159,909 113,637 273,546 58.5% 41.5%Oct 12 61 61 66 31 100.0% Oct 12 177,390 149,031 326,421 54.3% 45.7%

TOTAL = -- -- -- 92 -- TOTAL = 527,681 394,425 922,106 -- --AVERAGE = 60 60 66 -- 100.0% AVERAGE = 175,894 131,475 307,369 57.3% 42.7%

SPEED

TABLE 9 - SITE SUMMARY (contd.)WIM #42 - COTTAGE GROVE

October 2012

GROSS VEHICLE

WEIGHT

OVERWEIGHT

VEHICLES

FREIGHT

Vehicle Weights(Kips) Oct-12 Sep-12 Aug-12

88-90 321 412 39090-92 222 225 17092-94 108 106 10694-96 51 53 6096-98 28 31 37

98-100 14 20 31>100 35 56 120

TOTAL = 779 903 914

0

50

100

150

200

250

300

350

400

450

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

Num

ber o

f Veh

icles

Vehicle Weight (Kips)

Chart 1 ‐ Histogram of Vehicles Over 88,000 Pounds for Last Three Months

Oct‐12

Sep‐12

Aug‐12

0

20

40

60

80

100

120

140

160

180

0

2,000

4,000

6,000

8,000

10,000

12,000

14,000

16,000

18,000

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

Aver

age

Num

ber o

f Ove

rwei

ght V

ehic

les

Aver

age

Num

ber o

f Veh

icle

s

Day of the Week

Figure 1 - Average Volume and Average Overweight Volume vs. Day of the Week

NB VehiclesSB VehiclesNB Overweight VehiclesSB Overweight Vehicles

0

500

1,000

1,500

2,000

2,500

0

5,000

10,000

15,000

20,000

25,000

30,000

35,000

40,000

45,000

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

Heav

y Co

mm

erci

al V

ehic

les

Pass

enge

r Veh

icle

s

Hour of the Day

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

NB Passenger VehiclesSB Passenger VehiclesNB Heavy Commercial VehiclesSB Heavy Commercial Vehicles

0

50

100

150

200

250

300

350

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 3 - Overweight Vehicles by Class vs. Hour of the Day

C4

C5

C6

C7

C8

C9

C10

C11

C12

C13

0

100

200

300

400

500

600

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 Vehicles

NB

SB

0

100

200

300

400

500

600

700

800

900

1,000

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

Vehi

cles

Weight (Kips)

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

NB Class 9SB Class 9NB Class 10SB Class 10

50

55

60

65

70

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, NB - Passenger Vehicles Lane 1, NB - Heavy Commercial VehiclesLane 2, NB - Passenger Vehicles Lane 2, NB - Heavy Commercial VehiclesLane 3, SB - Passenger Vehicles Lane 3, SB - Heavy Commercial VehiclesLane 4, SB - Passenger Vehicles Lane 4, SB - Heavy Commercial Vehicles

55

60

65

70

9/30 10/7 10/14 10/21 10/28 11/4

Spee

d (m

ph)

Date

Figure 7 - Average Speed vs. Day of Month

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 - NB Driving

Lane 2 - NB Passing

Lane 3 - SB Passing

Lane 4 - SB Driving

0

100,000

200,000

300,000

400,000

500,000

600,000

700,000

800,000

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

Tota

l Gro

ss W

eigh

t (Ki

ps)

Vehicle Class

Figure 9 - Total Gross Vehicle Weight by Class and Lane

NB Driving LaneNB Passing LaneSB Driving LaneSB Passing Lane

C1 0.0%

C2 43.6%

C3 26.7%

C4 0.5%

C5 4.2%

C6 2.5%

C7 0.4%

C8 1.8%

C9 18.2%

C10 1.8%

C11 0.0%

C12 0.2%

C13 0.0%

Figure 10 - Total Gross Vehicle Weight by Class

0

2,000

4,000

6,000

8,000

10,000

12,000

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

ESAL

s

Vehicle Class

Figure 11 - Total ESALs by Class and Lane

NB Driving LaneNB Passing LaneSB Driving LaneSB Passing Lane

C1 0.0%

C2 1.2% C3

1.8%

C4 2.2%

C5 9.8%

C6 9.0%

C7 2.0%

C8 4.5%

C9 63.1%

C10 5.0%

C11 0.1%

C12 1.0%

C13 0.2%

Figure 12 - ESALs by Class

Figure 13 - Freight Tonnage and Percentage by Direction and Class

C4 6,190

4%

C5 26,670

15%

C6 15,005

8%

C7 6,865

4%

C8 3,775

2%

C9 98,083

55%

C10 13,393

8%

C11 54 0%

C12 2,478

1%

C13 4,877

3%

Northbound Freight C4

4,213 3%

C5 23,119

15%

C6 14,725

10%

C7 3,472

2%

C8 2,306

2%

C9 92,003

62%

C10 7,911

5%

C11 168 0%

C12 117 0%

C13 998 1%

Southbound Freight

0.0%

0.5%

1.0%

1.5%

2.0%

2.5%

3.0%

3.5%

4.0%

4.5%

5.0%

5.5%

6.0%

6.5%

7.0%

7.5%

8.0%

20 30 40 50 60 70 80 90 100

Freq

uenc

y

GVW (Kips)

Figure 14 - Monthly Class 9 GVW Histogram - Lane 1 (NB Driving) Jul-12Aug-12Sep-12Oct-12

Unloaded Peak 28-32 Kips

0.0%

0.5%

1.0%

1.5%

2.0%

2.5%

3.0%

3.5%

4.0%

4.5%

5.0%

5.5%

6.0%

6.5%

7.0%

7.5%

8.0%

20 30 40 50 60 70 80 90 100

Freq

uenc

y

GVW (Kips)

Figure 15 - Monthly Class 9 GVW Histogram - Lane 2 (NB Passing) Jul-12Aug-12Sep-12Oct-12


0.0%

0.5%

1.0%

1.5%

2.0%

2.5%

3.0%

3.5%

4.0%

4.5%

5.0%

5.5%

6.0%

6.5%

7.0%

7.5%

8.0%

20 30 40 50 60 70 80 90 100

Freq

uenc

y

GVW (kips)

Figure 16 - Monthly Class 9 GVW Histogram - Lane 3 (SB Passing) Jul-12Aug-12Sep-12Oct-12

Unloaded Peak, 28-32 Kips

0.0%

0.5%

1.0%

1.5%

2.0%

2.5%

3.0%

3.5%

4.0%

4.5%

5.0%

5.5%

6.0%

6.5%

7.0%

7.5%

8.0%

20 30 40 50 60 70 80 90 100

Freq

uenc

y

GVW (Kips)

Figure 17 - Monthly Class 9 GVW Histogram - Lane 4 (SB Driving) Jul-12Aug-12Sep-12Oct-12


50

55

60

65

70

75

80

85

90

95

100

20

25

30

35

407/

8/12

7/15

/12

7/22

/12

7/29

/12

8/5/

12

8/12

/12

8/19

/12

8/26

/12

9/2/

12

9/9/

12

9/16

/12

9/23

/12

9/30

/12

10/7

/12

10/1

4/12

10/2

1/12

10/2

8/12

11/4

/12

Load

ed (K

ips)

Unl

oade

d (K

ips)

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

wim #42 us 61, mp 119.6 cottage grove, minnesota october … · october. the average daily traffic...

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