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Home My Public Portal AboutTraffic Study Scope MEMORANDUM Date: November 4, 2008 Project #: 9670.0 To: Bradley Krausharr, City of McCall Michelle Groenevelt, City of McCall Pam Golden, Idaho Transportation Department CC: Brian O’Morrow, Browns Industries Violet Patton, Secesh Engineering From: Yuri Mereszczak, Chriss Ruiz, and John Ringert, PE Project: Proposed East Airport PUD Subject: Proposed Scope of Work This memorandum provides an outline of our proposed scope of work for the East Airport PUD Master Plan transportation impact study (TIS). This memorandum was prepared based on our discussions with the Idaho Transportation Department (ITD) on October 17, 2008 and the City of McCall on October 20, 2008, our preliminary due diligence work on the proposed transportation impacts, our discussions with the owner of the property and Secesh Engineering, and our knowledge of ITD traffic impact study requirements and the City of McCall’s Comprehensive Plan. This memorandum addresses the following items: o Project Description o Estimated Trip Generation o Estimated Trip Distribution o Traffic Analysis Assumptions PROJECT DESCRIPTION The proposed East Airport PUD will be located east of State Highway (SH) 55 extending from Krahn Lane to approximately 0.8 miles south of Elo Road. The project will consist of approximately 70 new aircraft hangers, approximately 60,000 square feet of light industrial uses, park, approximately 40,000 square‐feet of office space, and approximately 60 acres of mixed industrial uses. In addition, 35,000 square‐feet of airport related commercial uses and a 75‐room hotel are proposed adjacent to a planned small private/commercial airport terminal. In the near‐term, one industrial parcel at the south end of the property is planned to be developed into a concrete and asphalt processing plant. All other industrial parcels are planned for long‐ term build‐out. The site plan shows four parcels in the southeast corner of the development planned for rural residential zoning designation; however, in conversations with Brown’s Proposed East Airport PUD Project #: 9670.0 November 4, 2008 Page 2 Kittelson & Associates, Inc. Boise, Idaho Industries, they indicated no intent to develop or sell these parcels at any time in the foreseeable future. Figure 1 illustrates the site vicinity map and Figure 2 provides the proposed site plan. The assumed ultimate build‐out year for the proposed development is the year 2023. The TIS will also analyze an initial, near‐term phase of development (Phase 1) scenario, which assumes the development of the 70 aircraft hangers, 30,000 square‐feet of light industrial, and 20,000 square‐ feet of office in addition to the concrete and asphalt processing plant by the year 2014. Access to the site is planned via a public street system that connects to two new access points on SH 55. One access is proposed at Krahn Lane (existing T‐intersection with a proposed west leg extension) and a second access is proposed via a new roadway, Risto Road (proposed roadway approximately 0.5 miles south of Elo Road). While access at Elo Road has been discussed, it is not of part of the current proposed development. ESTIMATED TRIP GENERATION Projections of weekday p.m. peak hour vehicle trip ends for the proposed East Airport PUD were estimated based on the Trip Generation Manual, 7th Edition, published by the Institute of Transportation Engineers (ITE) (Reference 1). No pass‐by trips were assumed. A 6% daily internal capture and a 3% p.m. peak hour internal capture were assumed for only the year 2023 full build‐ out trip generation scenario. The internal trip capture was estimated using information provided in the ITE Trip Generation Handbook (Reference 2). Tables 1 and 2 summarize the estimated trip generation for Phase 1 and full build‐out of the proposed development, respectively. All volumes shown are rounded to the nearest five vehicles. Information was gathered from a potential operator of this concrete and asphalt processing plant as to the expected trip generation from the plant. It is expected that, on average, the site will produce approximately 100,000 tons per year operating under an eight‐month season. This equates to approximately 28 truck loads per day. According to the potential operator, shifts during a typical weekday run from approximately 6:30 a.m. to 6:30 p.m. except on Friday afternoons where shifts end by 4:00 p.m. on Friday afternoons. Trucks typically try and avoid trips in and out of the site during the a.m. and p.m. peak hours, but the potential operator of the site suggested using a conservative estimate of 10 to 15 trips during the weekday a.m. and p.m. peak hours. It is assumed that a maximum of five heavy vehicle trips will be generated by the concrete/asphalt plant during the both the weekday p.m. peak hour and summer Friday p.m. peak hour. Tables 1 and 2 provide the heavy vehicle estimates for the concrete/asphalt plant along with heavy vehicle estimates for the other industrial parcels based on data provided in the ITE Trip Generation Handbook (Reference 2). Based on discussions with Brown’s Industries and the location of the proposed plants, it is expected that all of the truck traffic will access SH 55 via Risto Road. Proposed East Airport PUD Project #: 9670.0 November 4, 2008 Page 5 Kittelson & Associates, Inc. Boise, Idaho Table 1 Phase 1 East Airport PUD Estimated Trip Generation Daily Trips Weekday AM Peak Hour Trips Weekday PM Peak Hour Trips Land Use ITE Code Size Total Total Total In Out Concrete/Asphalt Plant Heavy Vehicles N/A 100,000 tons/yr 35 30 5 5 5 5 <5 5 5 <5 General Aviation Airport 22 70 based aircraft 350 30 35 20 15 General Light Industrial Heavy Vehicles 110 30 ksf 120 10 30 <5 30 <5 5 <5 25 <5 General Office Building 710 20 ksf 385 50 30 5 25 Net New Trips 930 120 105 35 70 As shown in the Table 1, Phase 1 of the proposed development is estimated to generate approximately 120 net new trips during the weekday a.m. peak hour, 105 net new trips (35 inbound, 70 outbound) during the weekday p.m. peak hour, and a total of 930 net new trips daily. The trip generation estimate performed for Phase 1 of the development shows a slightly higher number of trips generated during the weekday a.m. peak hour versus the weekday p.m. peak hour. However, according to data from the nearest permanent traffic counter on SH 55 in Donnelly, Idaho (ITD Counter #43), there are nearly twice as many weekday p.m. peak hour trips on SH 55 versus weekday a.m. peak hour trips (Reference 3). Therefore, the traffic impacts during the weekday p.m. peak hour will be analyzed along with the summer Friday p.m. peak hour under year 2014 Phase 1 traffic conditions. Attachment “A” provides the data from ITD Counter #43. Table 2 Full Build-Out East Airport PUD Estimated Trip Generation Daily Trips Weekday AM Peak Hour Trips Weekday PM Peak Hour Trips Land Use ITE Code Size Total Total Total In Out Commercial Airport 21 2 commercial flights/day 245 15 15 10 5 Concrete/Asphalt Plant Heavy Vehicles N/A 100,000 tons/yr 35 30 5 5 5 5 <5 5 5 <5 General Aviation Airport 22 70 based aircrafts 350 30 35 20 15 General Light Industrial Heavy Vehicles 110 60 ksf 345 15 55 <5 60 <5 10 <5 50 <5 General Office Building 710 40 ksf 660 90 60 10 50 Hotel 310 75 rooms 610 40 45 25 20 Industrial Park Heavy Vehicles 130 60 acres 3,800 80 515 <5 530 10 110 <5 420 10 Specialty Retail Center 814 35 ksf 1550 35 95 40 55 Internal Trips (435) (<5) (30) (15) (15) Net New Trips 7,285 790 830 215 615 Proposed East Airport PUD Project #: 9670.0 November 4, 2008 Page 6 Kittelson & Associates, Inc. Boise, Idaho As shown in Table 2, under full‐build out conditions, the development is expected to generate approximately 790 net new trips during the a.m. peak hour, 830 net new trips (215 inbound, 615 outbound) during the p.m. peak hour, and a total of 7,285 net new trips daily. The traffic impacts during the weekday p.m. peak hour will be analyzed along with the summer Friday p.m. peak hour under year 2023 full build‐out traffic conditions. TRIP DISTRIBUTION The distribution of site‐generated trips onto the roadway system within the study area was assumed to match the estimated trip distribution pattern assumed in the Draft Krahn Lane Crossing Transportation Impact Study (also referred to as the King’s Development) on the northeast corner of the SH 55/Krahn Lane intersection (Reference 4). This estimated trip distribution for the East Airport PUD development is illustrated in Figure 3. It is requested that the reviewing agencies provide any additional insight on the trip distribution to be used in the study. TRAFFIC ANALYSIS CONSIDERATIONS The TIS will include the following study intersections as illustrated in Figure 2: • Krahn Lane/SH 55 (existing T‐intersection with proposed west leg extension into the site) • Risto Road/SH 55 (proposed T‐intersection) An evaluation of sight distance will be performed at both of the study intersections. Also, the need for right‐ or left‐turn lanes will be evaluated based on both ITD Turn Lane Warrant procedures and National Cooperative Highway Research Program (NCHRP) Report 457: Engineering Study Guide for Evaluating Intersection Improvements procedures. An investigation of the ITD 2009‐2013 Statewide Transportation Improvement Program showed no planned near‐term intersection or roadway improvements in the vicinity of the site (Reference 5). Therefore, no intersection or roadways improvements will be assumed under year 2014 traffic conditions. Based on discussions with the City of McCall, the proposed King’s Mixed‐Use Development was identified as the only in‐process development in the site vicinity. The estimated traffic generated by this development will be incorporated at the study intersections under both year 2014 and year 2023 background and total traffic conditions. Proposed East Airport PUD Project #: 9670.0 November 4, 2008 Page 8 Kittelson & Associates, Inc. Boise, Idaho Two time periods are proposed to be studied: Summer Friday P.M. Peak Hour: This time period represents the worst‐case traffic conditions because normal weekday traffic is combined with the weekend recreational traffic on SH 55. Summer Weekday P.M. Peak Hour: This time period represents a typical commuter peak hour during the highest traffic volume months. The year 2006 traffic counts from the Krahn Lane Crossing study were utilized as the year 2008 existing counts since traffic growth has not occurred since 2006. Table 3 summarizes the average daily traffic (ADT) volumes from ITD Counter #43 and the average growth rates for traffic along SH 55 north of Donnelly. This summary was performed for the month of July as this is typically the month with the heaviest average traffic volumes on SH 55 and also was the most recent month of available data for 2008. Table 3 July Average Daily Traffic Volume Data (ITD Counter #43) Year State Highway 55 (July ADTs) Yearly Growth Rate 1991-2001 4,570 – 4,890 0.7% 2001-2005 4,890 – 6,280 6.5% 2005-2008 6,280 – 5,680 -3.3% 1991-2008 4,570 – 5,680 1.3% The year 2006 traffic counts were conducted during a Friday p.m. peak hour in the summer of 2006. Based on the data summarized in Table 3, the traffic on SH 55 has decreased at an average of 3.3‐percent annually over the most recent three years of data, although most of this decrease has come over the past year. Because of this recent trend of decreasing traffic volumes, it is assumed that no growth in traffic occurred at the Krahn Lane/SH 55 intersection between the year 2006 and the year 2008; therefore, the year 2006 summer p.m. peak hour traffic counts will be used to reflect year 2008 existing summer traffic conditions. For estimation of the weekday p.m. peak hour counts on SH 55, ITD Counter #43 identified that the summer weekday p.m. peak hour counts for the most recent one‐month period of data (July 2008) are on average approximately 75‐ percent of the summer Friday p.m. peak hour counts. The summer Friday p.m. peak hour through volumes on SH 55 will be factored by 0.75 to arrive at the weekday p.m. peak hour volumes. The turning movements to and from Krahn Lane will remain consistent between the summer Friday p.m. peak hour and the weekday p.m. peak hour. Figure 4 provides the year 2008 existing traffic volumes at the study intersections rounded to the nearest five vehicles per hour. Attachment “B” contains the year 2006 traffic counts assumed to represent year 2008 existing conditions based on recent growth trends. Proposed East Airport PUD Project #: 9670.0 November 4, 2008 Page 10 Kittelson & Associates, Inc. Boise, Idaho As shown in Table 3 the year 2006 summer peak average daily traffic along SH 55 was just over 6,000 vehicles per day. Since the high in 2006, the traffic on SH 55 has decreased at an average rate of 3.3‐percent annually. The growth in average daily traffic has varied from no growth in the late 1990s to a high of 6.5‐percent in the early 2000s. Overall, traffic volumes have grown at an average rate of 1.3‐percent per year over the past fifteen years. Based on the cycle of growth and recent ITD traffic impact studies performed in the area, a conservative annual growth rate of 3.0‐ percent will be applied to year 2008 existing traffic volumes to forecast year 2014 and year 2023 background traffic volumes at the study intersections. NEXT STEPS At this time, we request that ITD and the City of McCall review this scope of work and provide comments to us by November 11, 2008. We would like to confirm the appropriate level of analysis so that we may proceed with the transportation impact study. Thank you for your assistance and please contact us at 208‐338‐2683 with any questions or comments. REFERENCES 1. Institute of Transportation Engineers. 7th Edition, Trip Generation Manual. 2003 2. Institute of Transportation Engineers. 2nd Edition, Trip Generation Handbook. 2004 3. Idaho Transportation Department. State of Idaho Traffic Survey and Analysis Continuous Monitoring Stations. http://itd.idaho.gov/planning/roadwaydata/counters/043/index.html. Accessed November 4, 2008. 4. Kittelson & Associates, Inc. Draft Krahn Lane Crossing Transportation Impact Analysis. September 2006 5. Idaho Transportation Department. Idaho’s FY2008‐2012 Statewide Transportation Improvement Program. 2007 Attachment A – ITD ATR Counter #43 Data This Data is also available in the following forms: Comma Delimited , Tab Delimited and Space Delimited. Right-Click and 'Save Target As' to download a copy. Idaho Transportation Department Counter #43 - Donnelly Automatic traffic recorder z Average Daily Traffic z Published reports z Combine Sites z Your Cart YEAR Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual 24-hr Avg. 1990 1551 1471 1673 1911 2602 3190 4208 3919 3204 2490 1925 1578 2484 1991 1456 2275 1737 1798 2500 3315 4568 4248 3441 2774 2030 2005 2683 1992 1808 2417 2057 2163 3232 3697 4626 4579 3378 3079 2273 1690 2928 1993 1711 2055 1918 2110 3117 3632 4843 4245 3583 3030 2412 2037 2898 1994 2169 1936 2080 2288 3269 3678 4495 3940 3347 2987 2072 1947 2858 1995 1812 2479 2095 2266 3388 3922 5044 4639 3782 3168 2473 2073 3095 1996 1932 2325 2120 2352 2924 3815 4847 4740 3590 3186 2301 1819 2996 1997 1311 2475 2050 2146 2978 3692 4572 4555 3500 3127 2459 2043 2909 1998 1971 2426 2097 2209 2820 3652 5044 4710 3775 3056 2427 2083 3023 1999 2081 1980 2036 2126 2729 3810 5121 4716 3717 3149 2552 2048 3005 2000 2045 2374 2150 2340 3141 3945 5047 4729 3608 3127 2374 2063 3079 2001 2149 2282 2081 2267 3374 3936 4890 4682 3656 3089 2525 1993 3077 2002 2145 2412 2190 2282 3182 4132 5150 5047 3760 3314 2631 2254 3208 2003 2264 2697 2379 2398 3360 4310 5329 5227 3893 3587 2686 2584 3393 2004 2335 2742 2580 2792 3620 4661 5990 5244 4707 4130 3478 3083 3780 2005 3109 3453 3083 3041 3827 4827 6281 5986 4945 4176 3678 3246 4138 2006 3113 3352 3193 3113 3920 5235 6580 6152 5348 4738 3691 3455 4324 2007 3603 3662 3410 3469 4398 5288 6428 6112 4796 4197 3458 3081 4325 2008 2970 3066 2839 2555 3195 4342 5679 Idaho Transportation Department 3311 W. State Street · P.O. Box 7129 Boise, ID 83707-1129 Page 1 of 1 11/4/2008http://itd.idaho.gov/planning/roadwaydata/counters/043/index.html?print Idaho Transportation Department Monthly Average Hourly Traffic Report July 2008 County: ValleyStation # 043 District: 03Route: SH-55 Ascending Direction: NorthSegment Code and Milepost: 001990 127.720 3.6 Miles South of Roseberry Rd (Donnelly) Volumes and Percent of Daily Traffic Sunday Monday Tuesday Wednesday Thursday Friday Saturday Weekday Weekend All Days Hour Volume % of day Volume % of day Volume % of day Volume % of day Volume % of day Volume % of day Volume % of day Volume % of day Volume % of day Volume % of day 0:00 29 0.4%23 0.4%20 0.5%20 0.4%23 0.4%50 0.7%49 0.8%22 0.4%39 0.6%31 0.5% 1:00 16 0.2%12 0.2%11 0.3%13 0.3%17 0.3%26 0.4%24 0.4%13 0.3%20 0.3%17 0.3% 2:00 14 0.2%10 0.2%6 0.1%12 0.2%11 0.2%20 0.3%14 0.2%10 0.2%14 0.2%12 0.2% 3:00 12 0.2%10 0.2%10 0.2%9 0.2%12 0.2%19 0.3%10 0.2%10 0.2%11 0.2%12 0.2% 4:00 13 0.2%23 0.4%15 0.3%15 0.3%17 0.3%14 0.2%12 0.2%18 0.4%12 0.2%16 0.3% 5:00 23 0.3%89 1.7%54 1.2%56 1.1%60 1.0%50 0.7%28 0.5%65 1.3%26 0.4%51 0.9% 6:00 55 0.8%166 3.2%130 3.0%143 2.9%124 2.1%105 1.5%70 1.2%141 2.8%62 1.0%113 2.0% 7:00 110 1.6%255 4.9%190 4.4%197 4.0%202 3.4%192 2.8%130 2.2%211 4.1%120 1.9%182 3.2% 8:00 210 3.0%319 6.2%241 5.5%267 5.4%253 4.3%245 3.6%221 3.7%270 5.3%216 3.3%251 4.4% 9:00 365 5.2%350 6.8%284 6.5%297 6.1%287 4.8%345 5.0%337 5.6%304 6.0%351 5.4%324 5.6% 10:00 516 7.4%386 7.5%298 6.8%337 6.9%353 5.9%434 6.3%455 7.6%344 6.7%486 7.5%397 6.9% 11:00 643 9.2%409 7.9%333 7.6%347 7.1%389 6.5%488 7.1%532 8.9%370 7.3%588 9.1%449 7.8% 12:00 660 9.5%408 7.9%344 7.9%375 7.6%414 7.0%511 7.4%538 9.0%385 7.6%599 9.3%464 8.1% 13:00 657 9.4%393 7.6%334 7.7%377 7.7%442 7.4%538 7.8%515 8.6%386 7.6%586 9.1%465 8.1% 14:00 661 9.5%399 7.7%337 7.7%390 7.9%459 7.7%565 8.2%486 8.1%396 7.8%574 8.9%471 8.2% 15:00 608 8.7%390 7.5%338 7.7%394 8.0%494 8.3%552 8.0%494 8.3%404 7.9%551 8.5%467 8.1% 16:00 557 8.0%384 7.4%322 7.4%361 7.4%475 8.0%531 7.7%439 7.3%386 7.6%498 7.7%438 7.6% 17:00 505 7.2%346 6.7%322 7.4%355 7.2%466 7.8%512 7.4%394 6.6%372 7.3%450 7.0%414 7.2% 18:00 434 6.2%249 4.8%240 5.5%292 5.9%397 6.7%452 6.6%339 5.7%294 5.8%386 6.0%343 6.0% 19:00 338 4.8%202 3.9%178 4.1%217 4.4%327 5.5%371 5.4%265 4.4%231 4.5%302 4.7%271 4.7% 20:00 248 3.6%136 2.6%139 3.2%169 3.4%281 4.7%320 4.7%215 3.6%181 3.6%232 3.6%215 3.7% 21:00 162 2.3%115 2.2%114 2.6%135 2.8%226 3.8%250 3.6%196 3.3%148 2.9%179 2.8%171 3.0% 22:00 84 1.2%62 1.2%66 1.5%87 1.8%132 2.2%130 1.9%129 2.2%87 1.7%106 1.6%99 1.7% 23:00 50 0.7%36 0.7%37 0.8%43 0.9%83 1.4%156 2.3%81 1.4%50 1.0%66 1.0%69 1.2% 205216290182 248 287 249 212 270 239Ave. Hour 4 6970 31 5742 8 6474 19 5098 4 5973 4 68765944 55 4908 5 4363 4 5172Ave. Day Days Oper. Average Weekday Traffic includes Monday through Thursday. Average Weekend Traffic includes Saturday and Sunday. Page 1Creation Date: 8/14/2008 11:46 Idaho Transportation Department Monthly Average Hourly Traffic Report July 2008 County: ValleyStation # 043 District: 03Route: SH-55 Ascending Direction: NorthSegment Code and Milepost: 001990 127.720 3.6 Miles South of Roseberry Rd (Donnelly) Volumes Sunday Monday Tuesday Wednesday Thursday Friday Saturday Weekday Weekend All Days Hour ASC DESC ASC DESC ASC DESC ASC DESC ASC DESC ASC DESC ASC DESC ASC DESC ASC DESC ASC DESC 0:00 14 15 14 9 12 8 13 7 14 9 32 18 28 21 13 8 21 18 18 12 1:00 9 7 7 5 7 4 10 3 12 5 19 7 14 10 9 4 12 8 11 6 2:00 6 8 6 4 4 2 6 6 6 5 14 6 9 5 6 4 8 6 7 5 3:00 4 8 4 6 6 4 5 4 6 6 12 7 4 6 5 5 4 7 6 6 4:00 6 7 12 11 9 6 6 9 10 7 7 7 4 8 9 8 5 8 8 8 5:00 10 13 43 46 26 28 31 25 32 28 26 24 13 15 33 32 12 14 26 26 6:00 20 35 73 93 65 65 72 71 64 60 51 54 31 39 68 72 26 37 54 60 7:00 35 75 135 120 95 95 107 90 105 97 100 92 60 70 110 100 48 72 91 91 8:00 82 128 161 158 120 121 146 121 145 108 139 106 111 110 143 127 96 119 129 122 9:00 118 247 166 184 150 134 170 127 155 132 188 157 166 171 160 144 142 209 159 165 10:00 134 382 172 214 157 141 195 142 194 159 236 198 216 239 180 164 175 310 186 211 11:00 180 463 199 210 177 156 199 148 223 166 304 184 298 234 200 170 239 348 226 223 12:00 197 463 202 206 180 164 202 173 247 167 314 197 288 250 208 178 242 356 233 231 13:00 211 446 187 206 164 170 193 184 249 193 337 201 260 255 198 188 236 350 229 236 14:00 221 440 185 214 159 178 198 192 255 204 352 213 244 242 199 197 232 341 231 240 15:00 204 404 182 208 159 179 194 200 294 200 336 216 237 257 207 197 220 330 229 238 16:00 159 398 178 206 159 163 170 191 277 198 328 203 191 248 196 190 175 323 209 230 17:00 141 364 168 178 158 164 186 169 272 194 336 176 180 214 196 176 160 289 206 208 18:00 124 310 118 131 122 118 156 136 244 153 292 160 134 205 160 134 129 258 170 173 19:00 94 244 102 100 100 78 125 92 223 104 265 106 113 152 138 94 104 198 146 125 20:00 80 168 71 65 76 63 99 70 204 77 226 94 85 130 112 69 82 149 120 95 21:00 63 99 63 52 66 48 80 55 161 65 152 98 88 108 92 55 76 104 96 75 22:00 39 45 38 24 39 27 57 30 90 42 80 50 56 73 56 31 48 59 57 42 23:00 27 23 20 16 22 15 29 14 56 27 97 59 33 48 32 18 30 36 41 29 2857225924062633311023652888 91 200 104 111 93 89 110 94 147 100 177 110 119 130 114 99 105 165 120 119Ave. Hour 318 2522 19 2730 4 2863 4 4243 5 3538 5544 2131 264922322666250647922178 3949Ave. Day Days Oper. Average Weekday Traffic includes Monday through Thursday. Average Weekend Traffic includes Saturday and Sunday. Page 2Creation Date: 8/14/2008 11:46 Idaho Transportation Department Monthly Average Hourly Traffic Report July 2008 County: ValleyStation # 043 District: 03Route: SH-55 Ascending Direction: NorthSegment Code and Milepost: 001990 127.720 3.6 Miles South of Roseberry Rd (Donnelly) Percent of Daily Traffic Sunday Monday Tuesday Wednesday Thursday Friday Saturday Weekday Weekend All Days Hour ASC DESC ASC DESC ASC DESC ASC DESC ASC DESC ASC DESC ASC DESC ASC DESC ASC DESC ASC DESC 0:00 0.6%0.3%0.6%0.3%0.5%0.4%0.5%0.3%0.4%0.4%0.8%0.7%1.0%0.7%0.5%0.3%0.8%0.5%0.6%0.4% 1:00 0.4%0.1%0.3%0.2%0.3%0.2%0.4%0.1%0.3%0.2%0.4%0.3%0.5%0.3%0.3%0.2%0.5%0.2%0.4%0.2% 2:00 0.3%0.2%0.2%0.2%0.2%0.1%0.2%0.3%0.2%0.2%0.3%0.2%0.3%0.2%0.2%0.2%0.3%0.2%0.2%0.2% 3:00 0.2%0.2%0.2%0.2%0.3%0.2%0.2%0.2%0.2%0.2%0.3%0.3%0.1%0.2%0.2%0.2%0.2%0.2%0.2%0.2% 4:00 0.3%0.1%0.5%0.4%0.4%0.3%0.2%0.4%0.3%0.3%0.2%0.3%0.1%0.3%0.3%0.3%0.2%0.2%0.3%0.3% 5:00 0.5%0.3%1.7%1.7%1.2%1.3%1.2%1.1%0.9%1.2%0.6%0.9%0.5%0.5%1.2%1.4%0.5%0.4%0.9%0.9% 6:00 0.9%0.7%2.9%3.5%2.9%3.1%2.7%3.1%1.8%2.5%1.2%2.1%1.1%1.3%2.5%3.0%1.0%0.9%1.9%2.1% 7:00 1.6%1.6%5.4%4.5%4.3%4.5%4.0%4.0%3.0%4.0%2.4%3.5%2.1%2.3%4.0%4.2%1.9%1.8%3.2%3.2% 8:00 3.8%2.7%6.4%5.9%5.4%5.7%5.5%5.4%4.1%4.5%3.3%4.0%3.9%3.5%5.2%5.4%3.8%3.0%4.5%4.3% 9:00 5.4%5.2%6.6%6.9%6.7%6.3%6.4%5.6%4.4%5.5%4.4%6.0%5.8%5.5%5.9%6.1%5.6%5.3%5.5%5.8% 10:00 6.2%8.0%6.9%8.0%7.0%6.6%7.4%6.3%5.5%6.6%5.6%7.5%7.5%7.7%6.6%6.9%6.9%7.9%6.4%7.4% 11:00 8.3%9.7%7.9%7.9%7.9%7.3%7.5%6.6%6.3%6.9%7.2%7.0%10.4%7.5%7.3%7.2%9.5%8.8%7.8%7.8% 12:00 9.0%9.7%8.1%7.7%8.1%7.7%7.6%7.7%7.0%6.9%7.4%7.5%10.1%8.0%7.6%7.5%9.6%9.0%8.1%8.1% 13:00 9.7%9.3%7.5%7.7%7.3%8.0%7.3%8.1%7.0%8.0%7.9%7.6%9.1%8.2%7.3%7.9%9.4%8.9%7.9%8.3% 14:00 10.1%9.2%7.4%8.0%7.1%8.4%7.5%8.5%7.2%8.5%8.3%8.1%8.5%7.8%7.3%8.3%9.2%8.6%8.0%8.4% 15:00 9.4%8.4%7.3%7.8%7.1%8.4%7.3%8.9%8.3%8.3%7.9%8.2%8.3%8.3%7.6%8.3%8.7%8.4%7.9%8.3% 16:00 7.3%8.3%7.1%7.7%7.1%7.6%6.4%8.5%7.8%8.2%7.7%7.7%6.7%8.0%7.2%8.0%6.9%8.2%7.2%8.1% 17:00 6.5%7.6%6.7%6.7%7.1%7.7%7.0%7.5%7.7%8.1%7.9%6.7%6.3%6.9%7.2%7.4%6.3%7.3%7.1%7.3% 18:00 5.7%6.5%4.7%4.9%5.5%5.5%5.9%6.0%6.9%6.4%6.9%6.1%4.7%6.6%5.9%5.7%5.1%6.5%5.9%6.1% 19:00 4.3%5.1%4.1%3.8%4.5%3.7%4.7%4.1%6.3%4.3%6.2%4.0%3.9%4.9%5.1%4.0%4.1%5.0%5.1%4.4% 20:00 3.7%3.5%2.8%2.4%3.4%3.0%3.7%3.1%5.8%3.2%5.3%3.6%3.0%4.2%4.1%2.9%3.3%3.8%4.2%3.3% 21:00 2.9%2.1%2.5%2.0%3.0%2.3%3.0%2.4%4.6%2.7%3.6%3.7%3.1%3.5%3.4%2.3%3.0%2.6%3.3%2.6% 22:00 1.8%0.9%1.5%0.9%1.7%1.3%2.2%1.3%2.5%1.7%1.9%1.9%2.0%2.3%2.1%1.3%1.9%1.5%2.0%1.5% 23:00 1.2%0.5%0.8%0.6%1.0%0.7%1.1%0.6%1.6%1.1%2.3%2.2%1.2%1.5%1.2%0.8%1.2%0.9%1.4%1.0% 2178 4792 2506 2666 2232 2131 2649 2259 3538 2406 4243 2633 2863 3110 2730 2365 2522 3949 2888 2857Ave. Day Average Weekday Traffic includes Monday through Thursday. Average Weekend Traffic includes Saturday and Sunday. Page 3Creation Date: 8/14/2008 11:46 Attachment B – Year 2006 Summer PM Peak Traffic Counts L2 Data Collection 1770 W. State St. #204 Boise, Idaho 83702 (208) 860-7554AA File Name : Hwy 55 & Krahn PM Site Code : 00002 Start Date : 8/18/2006 Page No : 1 Tech: Vawdrey Counter: DB-3504 Location: Highway 55 / Krahn Lane Control: Stop Sign Groups Printed- General Traffic - Heavy Truck 3+ Axle Highway 55 From North Krahn Lane From East Highway 55 From South Start Time Thru Left App. Total Right Left App. Total Right Thru App. Total Int. Total 04:00 PM 121 7 128 6 3 9 2 134 136 273 04:15 PM 106 3 109 11 3 14 3 120 123 246 04:30 PM 114 4 118 2 0 2 1 138 139 259 04:45 PM 97 12 109 6 0 6 0 108 108 223 Total 438 26 464 25 6 31 6 500 506 1001 05:00 PM 130 9 139 1 0 1 1 153 154 294 05:15 PM 110 1 111 8 2 10 3 131 134 255 05:30 PM 106 7 113 5 1 6 2 113 115 234 05:45 PM 95 6 101 6 3 9 0 165 165 275 Total 441 23 464 20 6 26 6 562 568 1058 Grand Total 879 49 928 45 12 57 12 1062 1074 2059 Apprch %94.7 5.3 78.9 21.1 1.1 98.9 Total %42.7 2.4 45.1 2.2 0.6 2.8 0.6 51.6 52.2 General Traffic 851 49 900 44 12 56 12 1045 1057 2013 % General Traffic 96.8 100 97 97.8 100 98.2 100 98.4 98.4 97.8 Heavy Truck 3+ Axle 28 0 28 1 0 1 0 17 17 46 % Heavy Truck 3+ Axle 3.2 0 3 2.2 0 1.8 0 1.6 1.6 2.2 Highway 55 Krahn Lane Highway 55 Thru 851 28 879 Left 49 0 49 InOut Total 1089 900 1989 18 28 46 1107 2035 928 Right44 1 45 Left12 0 12 OutTotalIn61 56 117 0 1 1 61 118 57 Thru 1045 17 1062 Right 12 0 12 Out TotalIn 863 1057 1920 28 17 45 891 1965 1074 8/18/2006 04:00 PM 8/18/2006 05:45 PM General Traffic Heavy Truck 3+ Axle North L2 Data Collection 1770 W. State St. #204 Boise, Idaho 83702 (208) 860-7554AA File Name : Hwy 55 & Krahn PM Site Code : 00002 Start Date : 8/18/2006 Page No : 2 Tech: Vawdrey Counter: DB-3504 Location: Highway 55 / Krahn Lane Control: Stop Sign Highway 55 From North Krahn Lane From East Highway 55 From South Start Time Thru Left App. Total Right Left App. Total Right Thru App. Total Int. Total Peak Hour Analysis From 04:00 PM to 05:45 PM - Peak 1 of 1 Peak Hour for Entire Intersection Begins at 05:00 PM 05:00 PM 130 9 139 1 0 1 1 153 154 294 05:15 PM 110 1 111 8 2 10 3 131 134 255 05:30 PM 106 7 113 5 1 6 2 113 115 234 05:45 PM 95 6 101 6 3 9 0 165 165 275 Total Volume 441 23 464 20 6 26 6 562 568 1058 % App. Total 95 5 76.9 23.1 1.1 98.9 PHF .848 .639 .835 .625 .500 .650 .500 .852 .861 .900 General Traffic 429 23 452 20 6 26 6 553 559 1037 % General Traffic 97.3 100 97.4 100 100 100 100 98.4 98.4 98.0 Heavy Truck 3+ Axle 12 0 12 0 0 0 0 9 9 21 % Heavy Truck 3+ Axle 2.7 0 2.6 0 0 0 0 1.6 1.6 2.0 Highway 55 Krahn Lane Highway 55 Thru 429 12 441 Left 23 0 23 InOut Total 573 452 1025 9 12 21 582 1046 464 Right20 0 20 Left6 0 6 OutTotalIn29 26 55 0 0 0 29 55 26 Thru 553 9 562 Right 6 0 6 Out TotalIn 435 559 994 12 9 21 447 1015 568 Peak Hour Begins at 05:00 PM General Traffic Heavy Truck 3+ Axle Peak Hour Data North L2 Data Collection 1770 W. State St. #204 Boise, Idaho 83702 (208) 860-7554AA File Name : Hwy 55 & Krahn PM Site Code : 00002 Start Date : 8/18/2006 Page No : 3 Tech: Vawdrey Counter: DB-3504 Location: Highway 55 / Krahn Lane Control: Stop Sign Image 1 L2 Data Collection 1770 W. State St. #204 Boise, Idaho 83702 (208) 860-7554AA File Name : Hwy 55 & Krahn PM Site Code : 00002 Start Date : 8/18/2006 Page No : 4 Tech: Vawdrey Counter: DB-3504 Location: Highway 55 / Krahn Lane Control: Stop Sign