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23-101440-UP_Limited Scope Traffic Impact & Trip generation Analysis_03-21-23
TENW Transportation Engineering NorthWest Transportation Planning | Design | Traffic Impact & Operations PO Box 65254, Seattle, WA 98155 | Office (206) 361-7333 MEMORANDUM DATE: March 6, 2023 TO: Sarady Long, Senior Traffic Engineer City of Federal Way FROM: Michael Read, PE, Principal TENW SUBJECT: Intracorp 1st Avenue S Townhomes - Limited Scope Traffic Impact Analysis TENW Project No. 2021-239 This memorandum summarizes the results of a limited scope traffic impact analysis for the proposed 1st Avenue S Townhome project by Intracorp, which is being provided with the Transportation Concurrency Application. This memo includes a project description, methodology used to derive the trip generation estimate, a trip generation summary, and evaluation of the primary site access driveway onto 328th Street S and vicinity intersections. Project Description The proposed development is located at the southeast quadrant of the 1st Avenue S and S 328th Street signalized intersection at the former BallyÊs fitness center in Federal Way, WA. The proposed project would remove the existing 54,425 square-foot building and associated surface parking lot and redevelop the site with up to 140 residential townhomes in up to 20 different buildings. A site vicinity map is provided in Figure 1, and a preliminary site plan concept is provided in Figure 2. Vehicle access to/from the site would continue at its most westerly driveway onto S 328th Street (operating as right-in, right-out only), and a new central driveway onto S 328th Street that would provide full access. The existing eastern driveway onto S 328th Street and two other driveways onto 1st Avenue S would be closed. Widening and frontage improvements along 1st Avenue S and S 328th Street would be completed as part of the site redevelopment. Trip Generation Methodology The weekday daily, AM peak hour, and PM peak hour trip generation estimates for the proposed 1st Avenue S Townhomes development were based on trip rates published in the Institute of Transportation Engineers (ITE) Trip Generation Manual, 11th Edition, 2021. ITE Land Use Code (LUC) 220 was applied for the proposed multifamily housing units and is summarized in Table 1. As shown, the project is estimated to generate a net increase of approximately 973 daily vehicular trips, with 66 trips occurring during the AM peak hour and 81 trips in the PM peak hour. Detailed trip generation calculations are provided in Attachment A. It should be noted, that this trip generation analysis does not compare the historical trip generation of the former BallyÊs fitness use on the site. Limited Scope Traffic Impact Analysis Intracorp 1st Avenue S Townhome TENW March 3, 2023 Page 2 Limited Scope Traffic Impact Analysis Intracorp 1st Avenue S Townhome TENW March 3, 2023 Page 3 Limited Scope Traffic Impact Analysis Intracorp 1st Avenue S Townhome TENW March 3, 2023 Page 4 Table 1: 1st Avenue S Townhomes – Trip Generation Time Period In Out Total Weekday Daily 486 487 973 Weekday AM Peak Hour 16 50 66 Weekday PM Peak Hour 51 30 81 Source: Trip Generation Manual, 11th Edition, 2021, ITE. Based upon the trip generation, a full Transportation Impact Analysis per City of Federal Way is not required. A driveway operational analysis at full buildout is described below that includes nearby adjacent intersections. Site Access Traffic Operational Analysis Vehicle access to/from the site would continue at its most westerly driveway onto S 328th Street (operating as right-in, right-out only), and a new central driveway onto S 328th Street that would provide full access. As such, all trips generated by the proposed residential uses would utilize S 328th Street. Based upon existing travel patterns collected in January 2023 (provided in Attachment B), project trips would be generally assigned as follows: 20 percent via 1st Avenue S to/from the north; 60 percent via 1st Avenue S to/from the south; and 20 percent via S 328th Street to/from the east. It should be noted, that AM peak hour traffic volumes are approximately 65 percent of PM peak hour volumes along S 328th Street, and as such, level of service and queuing analysis was limited to the PM peak hour only. Existing PM peak hour traffic volumes at vicinity intersections is provided in Figure 3. Table 2 summarizes the weekday PM peak hour LOS analysis results at the two site access driveway locations. As shown, the individual movements at the stop-controlled site access driveway currently operate at LOS B with a volume-to-capacity (V/C) ratio under 0.2 during the PM peak hours with or without the project in 2023 without any vehicle queuing forecast (1 vehicle or less). Detailed LOS summary worksheets are included in Attachment C, while Figure 4 provides 2026 PM peak hour traffic volume forecasts with and without the project using a 3 percent per year background growth rate. As shown, the primary site driveway and vicinity intersections would operate at LOS B or better with or without the project in 2026. Table 1: Project Site Access and Vicinity PM Peak Hour LOS Analysis 2026 Without Project (Baseline) 2023 With Project Study Intersection LOS Delay (sec) V/C Ratio LOS Delay (sec) V/C Ratio Stop-Controlled Intersections: East Site Access onto S 328th St. (Full Access) Northbound Approach -- -- -- B 10.0 0.04 2nd Place S and S 328th St. (Full Access) Southbound Approach A 9.5 0.01 A 9.6 0.01 Signal-Controlled Intersections: 1st Avenue S and S 328th St. B 12.0 - B 13.2 - Source: TENW using Synchro V11. Limited Scope Traffic Impact Analysis Intracorp 1st Avenue S Townhome TENW March 3, 2023 Page 5 Limited Scope Traffic Impact Analysis Intracorp 1st Avenue S Townhome TENW March 3, 2023 Page 6 Limited Scope Traffic Impact Analysis Intracorp 1st Avenue S Townhome TENW March 3, 2023 Page 7 Conclusions The following summarizes the measures proposed to mitigate the impacts of the proposed Intracorp 1st Avenue S Townhome project development in Federal Way, WA. As all the primary site driveway and all vicinity intersections immediately east and west of site access are expected to operate at LOS B or better with the project, no specific SEPA impacts are warranted or required. To mitigation systemwide traffic impacts and to fulfill frontage improvement obligations, the following mitigation measures are required. Payment of City of Federal Way traffic impact fees. The City of Federal Way assesses traffic impact fee rates of $3,617.02 per new multi-family dwelling (City of Federal Way 2022 Fee Schedule). Based upon the proposed 140 Multi-Family dwelling units, an estimated total traffic impact fee of $506,382.80 (additional administrative fees may be required beyond this figure). The final fee would be determined at building permit issuance. Construct frontage improvements and donate public right-of-way as needed to construct a ½-street improvement of a Type C roadway section along 1st Avenue S and a Type R roadway section along S 328th Street. If you have any questions regarding the information presented in this memo, please call me at (206) 361- 7333 x 101 or mikeread@tenw.com. ATTACHMENTS Attachment A - Trip Generation Calculations ITE Land Use Units 1 LUC 2 In Out In Out Total DAILY Proposed Use: Multifamily Housing (Low-Rise) 140 DU 220 T = 6.41(X)+75.31 50% 50% 486 487 973 New Daily Trips = 486 487 973 AM PEAK HOUR Proposed Use: Multifamily Housing (Low-Rise) 140 DU 220 T = 0.31(X)+22.85 24% 76% 16 50 66 New AM Peak Hour Trips = 16 50 66 PM PEAK HOUR Proposed Use: Multifamily Housing (Low-Rise) 140 DU 220 T = 0.43(X)+20.55 63% 37% 51 30 81 New PM Peak Hour Trips =51 30 81 Notes: 1 DU = Dwelling Units. 2 Based on Institute of Transportation Engineers (ITE) Trip Generation Manual, 11th Edition, 2021. Intracorp 1st Avenue S Townhomes - Federal Way Weekday Trip Generation Summary Directional Distribution Trips GeneratedTrip Rate or Equation 2 2/13/2023 Attachment B – 2023 Traffic Counts www.idaxdata.com to to Two-Hour Count Summaries Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count. Total 2 1 2 1 0 0 0 1 7 40000220 1 1 Peak Hour 0 1 3 15 19 0 0 0 0 0 0 2 3Count Total 1 3 16 21 41 0 1 0 00000005:45 PM 1 2 1 1 5 0 0 0 0 0 0 0 5:30 PM 0 0 5 0 5 0 0 0 0 0 0 0 0 0 0 0 5:15 PM 0 0 2 2 4 0 0 0 0 0 0 0 0 0 0 0 5:00 PM 0 0 1 0 1 0 0 0 0 0 0 1 1 0 0 0 4:30 PM 0 1 0 1 2 0 0 0 0 0 0 0 1 0 3 8 0 EB WB NB SB Total East 4:45 PM 0 0 0 4 4 0 0 1 -4%0%HV%-0%0%0%- 1 1 4:15 PM 0 0 2 10 12 0 0 0 0 0 0 0 0 West North South 4:00 PM 0 0 5 1 27 668 94 0 12 665100644140 0 Interval Start Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg) EB WB NB SB Total 1%-0%2%0%1%2%0%0% Peak Hour All 0 22 5 24 0 46 1,272 185 0 0 0 15 0 19 0000111 27 1,612 0 HV 0 0 0 0 0 Count Total 0 48 7 22 0 124 8 31 1,264 41 3,072 0 316 1,469115180413940201103 6 148 4 348 1,528 5:45 PM 0 6 1 4 6 0 6 139 19 0 381 1,581 5:30 PM 0 6 0 1 0 13 0 172 27 0 3 138 30131206 3 177 8 424 1,612 5:15 PM 0 11 0 5 1 0 6 179 21 0 375 1,603 5:00 PM 0 7 2 1 0 17 2 151 28 0 4 153 60150307 1 159 4 401 0 4:45 PM 0 4 0 4 6 0 6 166 25 0 412 0 4:30 PM 0 7 3 3 0 20 1 172 20 0 4 176 90121408 6 174 3 415 0 4:15 PM 0 4 0 2 1 0 4 178 27 04:00 PM 0 3 1 2 0 14 2 UT LT TH RT UT LT Rolling One HourEastboundWestboundNorthboundSouthbound UT LT TH RT Interval Start Driveway S 328th St 1st Ave S 1st Ave S 15-min TotalUTLTTHRT Date: 01/17/2023 Peak Hour Count Period: 4:00 PM 6:00 PM SB 2.1%0.93 TOTAL 1.2%0.95 TH RT WB 1.2%0.76 NB 0.4%0.96 Peak Hour: 4:15 PM 5:15 PM HV %:PHF EB 0.0%0.71 0 0 0 0000000 0 0 0 02 2N 1st Ave S S 328th St S 328th St 1st Ave SDriveway 1st Ave S1,612TEV: 0.95PHF:2766512704704014 4 64 82 1110 9466827789739010 5 22 37 58 0 project.manager.wa@idaxdata.com www.idaxdata.com Two-Hour Count Summaries - Heavy Vehicles Two-Hour Count Summaries - Bikes Note: U-Turn volumes for bikes are included in Left-Turn, if any. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 000 0 0 0 000 0 0 0 0000 0 0 0 00 0 THLT 00000000 0 00 0 0 0 0 0 0 0 0 0 THLT 0000000 0 00000 0 0 0 0 Peak Hour 0 0Count Total 0 000000000 0 0 5:45 PM 0 0 0 0 0 5:30 PM 0000000 0 0 5:15 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 5:00 PM 0000 0 0 4:45 PM 0 0 0 0 0 4:30 PM 00000004:15 PM 0 0 0 0 0 0 0 04:00 PM RT 19 0 Interval Start Driveway S 328th St 1st Ave S 1st Ave S 15-min Total Rolling One Hour 1 1 0 0 15 0010001 RTTHLT RTTHLTRT 0 21 0 41 0 Peak Hour 0 0 0 0 0 0 2 9 5 0Count Total 0 1 0 0 0 3 0 5 15100010020000 0 0 0 5 14 5:45 PM 0 1 0 0 0 0 1 2 2 0 4 11 5:30 PM 0 0 0 0 0 0 0 0 2 0 0 2 0000000 0 0 0 1 19 5:15 PM 0 0 0 0 0 0 0 1 0 0 4 26 5:00 PM 0 0 0 0 0 0 0 0 0 0 0 4 0000000 0 1 0 2 0 4:45 PM 0 0 0 0 0 0 0 0 0 0 12 0 4:30 PM 0 0 0 0 0 1 0 0 1 0 0 10 0000001 0 3 0 8 0 4:15 PM 0 0 0 0 0 0 0 5 0 0 TH RT 4:00 PM 0 0 0 0 0 0 0 UT LT TH RT UT LT Northbound Southbound UT LT TH RT UT LT TH RT Interval Start Driveway S 328th St 1st Ave S 1st Ave S 15-min Total Rolling One HourEastboundWestbound SouthboundNorthboundWestboundEastbound project.manager.wa@idaxdata.com www.idaxdata.com to to Two-Hour Count Summaries Note: Two-hour count summary volumes include heavy vehicles but exclude bicycles in overall count. Total 2 1 0 1 0 3 0 3 10 42000002 4 5 Peak Hour 1 1 0 0 2 0 0 0 0 0 0 1 0Count Total 5 3 0 0 8 0 0 0 20000015:45 PM 0 2 0 0 2 0 0 0 0 0 0 1 5:30 PM 2 0 0 0 2 0 0 0 0 0 0 0 0 2 0 0 5:15 PM 2 0 0 0 2 0 0 0 0 0 0 0 0 0 1 0 5:00 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4:30 PM 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 EB WB NB SB Total East 4:45 PM 0 0 0 0 0 0 0 0 ---HV%-0%1%-- 1 1 4:15 PM 1 0 0 0 1 0 0 0 0 0 0 0 0 West North South 4:00 PM 0 0 0 0 0 0 0 1 3 000075140 0 Interval Start Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg) EB WB NB SB Total -0%0%-0%1%-1%0% Peak Hour All 0 15 104 31 0 0 0 0 1 0 0 0 0 2 0100000 4 216 0 HV 0 0 1 0 0 Count Total 1 25 198 0 0 0 148 8 0 7 419 0 50 2030000010018400 0 0 2 52 205 5:45 PM 1 2 24 0 5 0 0 0 0 0 49 216 5:30 PM 0 2 25 0 0 0 18 0 0 0 4 0 00017300 1 0 0 52 212 5:15 PM 0 3 22 0 5 0 0 0 0 0 52 216 5:00 PM 0 3 23 0 0 0 20 0 0 0 1 0 10016100 0 0 2 63 0 4:45 PM 0 3 30 0 3 0 0 0 0 0 45 0 4:30 PM 0 5 26 0 0 0 27 0 0 1 1 0 10015600 1 0 0 56 0 4:15 PM 0 3 18 0 4 0 0 0 0 04:00 PM 0 4 30 0 0 0 17 UT LT TH RT UT LT Rolling One HourEastboundWestboundNorthboundSouthbound UT LT TH RT Interval Start S 328th St S 328th St Driveway 2nd Pl S 15-min TotalUTLTTHRT Date: 01/17/2023 Peak Hour Count Period: 4:00 PM 6:00 PM SB 0.0%0.67 TOTAL 0.9%0.86 TH RT WB 1.1%0.74 NB -- Peak Hour: 4:00 PM 5:00 PM HV %:PHF EB 0.8%0.88 0 0 0 0000000 0 0 2 20 0N 2nd Pl S S 328th St S 328th St DrivewayS 328th St 2nd Pl S216TEV: 0.86PHF:403830114 75 0 89 1070 0000000 104 15 119 79 0 project.manager.wa@idaxdata.com www.idaxdata.com Two-Hour Count Summaries - Heavy Vehicles Two-Hour Count Summaries - Bikes Note: U-Turn volumes for bikes are included in Left-Turn, if any. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 000 0 0 0 000 0 0 0 0000 0 0 0 00 0 THLT 00000000 0 00 0 0 0 0 0 0 0 0 0 THLT 0000000 0 00000 0 0 0 0 Peak Hour 0 0Count Total 0 000000000 0 0 5:45 PM 0 0 0 0 0 5:30 PM 0000000 0 0 5:15 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 5:00 PM 0000 0 0 4:45 PM 0 0 0 0 0 4:30 PM 00000004:15 PM 0 0 0 0 0 0 0 04:00 PM RT 2 0 Interval Start S 328th St S 328th St Driveway 2nd Pl S 15-min Total Rolling One Hour 0 0 0 0 0 0001000 RTTHLT RTTHLTRT 0 0 0 8 0 Peak Hour 0 0 1 0 0 0 0 0 0 0Count Total 0 1 4 0 0 0 3 2 6000000002000 0 0 0 2 4 5:45 PM 0 0 0 0 0 0 0 0 0 0 2 3 5:30 PM 0 1 1 0 0 0 0 0 0 0 0 0 0000000 0 0 0 0 2 5:15 PM 0 0 2 0 0 0 0 0 0 0 0 2 5:00 PM 0 0 0 0 0 0 0 0 0 0 0 0 0000000 0 0 0 1 0 4:45 PM 0 0 0 0 0 0 0 0 0 0 1 0 4:30 PM 0 0 0 0 0 0 1 0 0 0 0 0 0000000 0 0 0 0 0 4:15 PM 0 0 1 0 0 0 0 0 0 0 TH RT 4:00 PM 0 0 0 0 0 0 0 UT LT TH RT UT LT Northbound Southbound UT LT TH RT UT LT TH RT Interval Start S 328th St S 328th St Driveway 2nd Pl S 15-min Total Rolling One HourEastboundWestbound SouthboundNorthboundWestboundEastbound project.manager.wa@idaxdata.com Location:328TH ST BTWN 1ST AVE & 2ND PL Date Range:1/17/2023 - 1/23/2023 Site Code:01 Time EB WB Total EB WB Total EB WB Total EB WB Total EB WB Total EB WB Total EB WB Total EB WB Total 12:00 AM 8 5 13 5 7 12 ---------------7 6 13 1:00 AM 5 3 8 4 3 7 ---------------5 3 8 2:00 AM 6 4 10 3 2 5 ---------------5 3 8 3:00 AM 1 6 7 4 4 8 ---------------3 5 8 4:00 AM 8 9 17 8 7 15 ---------------8 8 16 5:00 AM 12 20 32 12 20 32 ---------------12 20 32 6:00 AM 29 40 69 23 35 58 ---------------26 38 64 7:00 AM 41 71 112 53 68 121 ---------------47 70 117 8:00 AM 57 69 126 60 78 138 ---------------59 74 132 9:00 AM 50 47 97 54 40 94 ---------------52 44 96 10:00 AM 63 56 119 69 58 127 ---------------66 57 123 11:00 AM 61 47 108 83 54 137 ---------------72 51 123 12:00 PM 84 55 139 81 40 121 ---------------83 48 130 1:00 PM 64 62 126 82 67 149 ---------------73 65 138 2:00 PM 81 58 139 113 88 201 ---------------97 73 170 3:00 PM 119 90 209 99 90 189 ---------------109 90 199 4:00 PM 123 80 203 102 89 191 ---------------113 85 197 5:00 PM 104 79 183 98 71 169 ---------------101 75 176 6:00 PM 73 55 128 91 68 159 ---------------82 62 144 7:00 PM 55 43 98 51 37 88 ---------------53 40 93 8:00 PM 41 33 74 55 40 95 ---------------48 37 85 9:00 PM 36 32 68 41 29 70 ---------------39 31 69 10:00 PM 31 12 43 24 12 36 ---------------28 12 40 11:00 PM 13 5 18 14 9 23 ---------------14 7 21 Total 1,165 981 2,146 1,229 1,016 2,245 ---------------1,197 999 2,196 Percent 54%46%-55%45%----------------55%45%- 1. Mid-week average includes data between Tuesday and Thursday. Tuesday Wednesday Thursday 1/18/20231/17/2023 Mid-Week Average1/19/2023 Friday Saturday Sunday Monday 1/23/20231/22/20231/21/20231/20/2023 Mark Skaggs:425-250-0777 mark.skaggs@idaxdata.com 1 Attachment C – LOS Summary Sheets Queues 1: 1st Ave S & Vision Center Driveway/S 328th St 02/13/2023 2026 No Action - PM Peak Hour 2026 No Action - PM Peak Hour 5:00 pm 01/17/2023 Intracorp Bailys Site Synchro 11 Report Page 1 Lane Group EBL EBT WBL WBT NBL NBT SBL SBT Lane Group Flow (vph) 25 17 74 20 32 876 14 797 v/c Ratio 0.09 0.06 0.25 0.07 0.06 0.32 0.02 0.29 Control Delay 13.4 12.3 15.0 11.5 4.5 5.9 4.6 5.8 Queue Delay 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Total Delay 13.4 12.3 15.0 11.5 4.5 5.9 4.6 5.8 Queue Length 50th (ft) 3 1 10 1 1 0 0 0 Queue Length 95th (ft) 19 16 41 17 14 175 8 158 Internal Link Dist (ft) 16 222 1 172 Turn Bay Length (ft) 225 175 Base Capacity (vph) 291 829 302 823 580 2742 564 2752 Starvation Cap Reductn 0 0 0 0 0 0 0 0 Spillback Cap Reductn 0 0 0 0 0 0 0 0 Storage Cap Reductn 0 0 0 0 0 0 0 0 Reduced v/c Ratio 0.09 0.02 0.25 0.02 0.06 0.32 0.02 0.29 Intersection Summary HCM 6th Signalized Intersection Summary 1: 1st Ave S & Vision Center Driveway/S 328th St 02/13/2023 2026 No Action - PM Peak Hour 2026 No Action - PM Peak Hour 5:00 pm 01/17/2023 Intracorp Bailys Site Synchro 11 Report Page 2 Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations Traffic Volume (veh/h) 24 5 11 70 4 15 30 730 103 13 727 30 Future Volume (veh/h) 24 5 11 70 4 15 30 730 103 13 727 30 Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0 Ped-Bike Adj(A_pbT) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Work Zone On Approach No No No No Adj Sat Flow, veh/h/ln 1900 1900 1900 1870 1900 1900 1841 1885 1885 1900 1870 1900 Adj Flow Rate, veh/h 25 5 12 74 4 16 32 768 108 14 765 32 Peak Hour Factor 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 Percent Heavy Veh, % 0 0 0 2 0 0 4 1 1 0 2 0 Cap, veh/h 302 30 72 354 33 130 406 1408 198 368 1487 62 Arrive On Green 0.03 0.06 0.06 0.07 0.10 0.10 0.04 0.45 0.45 0.02 0.43 0.43 Sat Flow, veh/h 1810 496 1190 1781 332 1329 1753 3152 443 1810 3475 145 Grp Volume(v), veh/h 25 0 17 74 0 20 32 436 440 14 391 406 Grp Sat Flow(s),veh/h/ln 1810 0 1686 1781 0 1661 1753 1791 1804 1810 1777 1844 Q Serve(g_s), s 0.6 0.0 0.4 1.7 0.0 0.5 0.4 7.9 7.9 0.2 7.1 7.1 Cycle Q Clear(g_c), s 0.6 0.0 0.4 1.7 0.0 0.5 0.4 7.9 7.9 0.2 7.1 7.1 Prop In Lane 1.00 0.71 1.00 0.80 1.00 0.25 1.00 0.08 Lane Grp Cap(c), veh/h 302 0 102 354 0 163 406 800 806 368 760 789 V/C Ratio(X) 0.08 0.00 0.17 0.21 0.00 0.12 0.08 0.55 0.55 0.04 0.51 0.51 Avail Cap(c_a), veh/h 453 0 687 439 0 681 540 800 806 540 760 789 HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Upstream Filter(I) 1.00 0.00 1.00 1.00 0.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Uniform Delay (d), s/veh 18.5 0.0 19.7 17.5 0.0 18.2 7.1 8.9 8.9 7.4 9.3 9.3 Incr Delay (d2), s/veh 0.1 0.0 0.8 0.3 0.0 0.3 0.1 2.7 2.6 0.0 2.5 2.4 Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 %ile BackOfQ(50%),veh/ln 0.2 0.0 0.2 0.6 0.0 0.2 0.1 2.7 2.7 0.1 2.5 2.6 Unsig. Movement Delay, s/veh LnGrp Delay(d),s/veh 18.7 0.0 20.5 17.8 0.0 18.5 7.1 11.6 11.6 7.5 11.7 11.7 LnGrp LOS B A C B A B A B B A B B Approach Vol, veh/h 42 94 908 811 Approach Delay, s/veh 19.4 18.0 11.4 11.6 Approach LOS B B B B Timer - Assigned Phs 1 2 3 4 5 6 7 8 Phs Duration (G+Y+Rc), s 5.3 24.2 7.5 7.2 6.1 23.4 5.8 8.8 Change Period (Y+Rc), s 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 Max Green Setting (Gmax), s 5.0 18.9 5.1 18.0 5.0 18.9 5.0 18.1 Max Q Clear Time (g_c+I1), s 2.2 9.9 3.7 2.4 2.4 9.1 2.6 2.5 Green Ext Time (p_c), s 0.0 3.6 0.0 0.0 0.0 3.4 0.0 0.0 Intersection Summary HCM 6th Ctrl Delay 12.0 HCM 6th LOS B HCM 6th TWSC 2: S 328th St & 2nd Pl S 02/13/2023 2026 No Action - PM Peak Hour 2026 No Action - PM Peak Hour 5:00 pm 01/17/2023 Intracorp Bailys Site Synchro 11 Report Page 3 Intersection Int Delay, s/veh 0.8 Movement EBL EBT WBT WBR SBL SBR Lane Configurations Traffic Vol, veh/h 16 114 82 15 4 4 Future Vol, veh/h 16 114 82 15 4 4 Conflicting Peds, #/hr 0 0 0 0 0 0 Sign Control Free Free Free Free Stop Stop RT Channelized - None - None - None Storage Length - - - - 0 - Veh in Median Storage, # - 0 0 - 0 - Grade, % - 0 0 - 0 - Peak Hour Factor 86 86 86 86 86 86 Heavy Vehicles, % 0 1 1 0 0 0 Mvmt Flow 19 133 95 17 5 5 Major/Minor Major1 Major2 Minor2 Conflicting Flow All 112 0 - 0 275 104 Stage 1 - - - - 104 - Stage 2 - - - - 171 - Critical Hdwy 4.1 - - - 6.4 6.2 Critical Hdwy Stg 1 - - - - 5.4 - Critical Hdwy Stg 2 - - - - 5.4 - Follow-up Hdwy 2.2 - - - 3.5 3.3 Pot Cap-1 Maneuver 1490 - - - 719 956 Stage 1 - - - - 925 - Stage 2 - - - - 864 - Platoon blocked, % - - - Mov Cap-1 Maneuver 1490 - - - 709 956 Mov Cap-2 Maneuver - - - - 709 - Stage 1 - - - - 912 - Stage 2 - - - - 864 - Approach EB WB SB HCM Control Delay, s 0.9 0 9.5 HCM LOS A Minor Lane/Major Mvmt EBL EBT WBT WBRSBLn1 Capacity (veh/h) 1490 - - - 814 HCM Lane V/C Ratio 0.012 - - - 0.011 HCM Control Delay (s) 7.4 0 - - 9.5 HCM Lane LOS A A - - A HCM 95th %tile Q(veh) 0 - - - 0 Queues 1: 1st Ave S & Vision Center Driveway/S 328th St 02/13/2023 2026 With Project - PM Peak Hour 2026 With Project - PM Peak Hour 5:00 pm 01/17/2023 Intracorp Bailys Site Synchro 11 Report Page 1 Lane Group EBL EBT WBL WBT NBL NBT SBL SBT Lane Group Flow (vph) 25 17 93 26 32 924 24 821 v/c Ratio 0.09 0.06 0.31 0.10 0.06 0.38 0.05 0.34 Control Delay 13.7 12.4 16.1 10.8 5.1 7.0 5.2 6.9 Queue Delay 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Total Delay 13.7 12.4 16.1 10.8 5.1 7.0 5.2 6.9 Queue Length 50th (ft) 4 1 15 1 2 37 1 33 Queue Length 95th (ft) 19 16 49 19 14 188 12 165 Internal Link Dist (ft) 16 222 1 172 Turn Bay Length (ft) 225 175 Base Capacity (vph) 284 801 303 792 524 2427 499 2445 Starvation Cap Reductn 0 0 0 0 0 0 0 0 Spillback Cap Reductn 0 0 0 0 0 0 0 0 Storage Cap Reductn 0 0 0 0 0 0 0 0 Reduced v/c Ratio 0.09 0.02 0.31 0.03 0.06 0.38 0.05 0.34 Intersection Summary HCM 6th Signalized Intersection Summary 1: 1st Ave S & Vision Center Driveway/S 328th St 02/13/2023 2026 With Project - PM Peak Hour 2026 With Project - PM Peak Hour 5:00 pm 01/17/2023 Intracorp Bailys Site Synchro 11 Report Page 2 Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations Traffic Volume (veh/h) 24 5 11 88 4 21 30 744 134 23 750 30 Future Volume (veh/h) 24 5 11 88 4 21 30 744 134 23 750 30 Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0 Ped-Bike Adj(A_pbT) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Work Zone On Approach No No No No Adj Sat Flow, veh/h/ln 1900 1900 1900 1870 1900 1900 1841 1885 1885 1900 1870 1900 Adj Flow Rate, veh/h 25 5 12 93 4 22 32 783 141 24 789 32 Peak Hour Factor 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 Percent Heavy Veh, % 0 0 0 2 0 0 4 1 1 0 2 0 Cap, veh/h 304 32 76 373 28 154 390 1302 234 354 1467 59 Arrive On Green 0.03 0.06 0.06 0.08 0.11 0.11 0.04 0.43 0.43 0.03 0.42 0.42 Sat Flow, veh/h 1810 496 1190 1781 254 1395 1753 3031 546 1810 3480 141 Grp Volume(v), veh/h 25 0 17 93 0 26 32 463 461 24 403 418 Grp Sat Flow(s),veh/h/ln 1810 0 1686 1781 0 1649 1753 1791 1785 1810 1777 1845 Q Serve(g_s), s 0.6 0.0 0.4 2.1 0.0 0.6 0.5 8.9 8.9 0.3 7.6 7.6 Cycle Q Clear(g_c), s 0.6 0.0 0.4 2.1 0.0 0.6 0.5 8.9 8.9 0.3 7.6 7.6 Prop In Lane 1.00 0.71 1.00 0.85 1.00 0.31 1.00 0.08 Lane Grp Cap(c), veh/h 304 0 107 373 0 182 390 769 767 354 749 778 V/C Ratio(X) 0.08 0.00 0.16 0.25 0.00 0.14 0.08 0.60 0.60 0.07 0.54 0.54 Avail Cap(c_a), veh/h 452 0 677 439 0 666 521 769 767 504 749 778 HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Upstream Filter(I) 1.00 0.00 1.00 1.00 0.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Uniform Delay (d), s/veh 18.7 0.0 19.8 17.5 0.0 18.0 7.4 9.8 9.8 7.7 9.7 9.7 Incr Delay (d2), s/veh 0.1 0.0 0.7 0.3 0.0 0.4 0.1 3.5 3.5 0.1 2.8 2.7 Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 %ile BackOfQ(50%),veh/ln 0.2 0.0 0.2 0.8 0.0 0.2 0.1 3.2 3.2 0.1 2.7 2.8 Unsig. Movement Delay, s/veh LnGrp Delay(d),s/veh 18.8 0.0 20.5 17.8 0.0 18.4 7.5 13.3 13.3 7.8 12.5 12.4 LnGrp LOS B A C B A B A B B A B B Approach Vol, veh/h 42 119 956 845 Approach Delay, s/veh 19.5 18.0 13.1 12.3 Approach LOS B B B B Timer - Assigned Phs 1 2 3 4 5 6 7 8 Phs Duration (G+Y+Rc), s 5.8 23.8 7.9 7.4 6.1 23.4 5.8 9.4 Change Period (Y+Rc), s 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 Max Green Setting (Gmax), s 5.0 18.9 5.1 18.0 5.0 18.9 5.0 18.1 Max Q Clear Time (g_c+I1), s 2.3 10.9 4.1 2.4 2.5 9.6 2.6 2.6 Green Ext Time (p_c), s 0.0 3.5 0.0 0.0 0.0 3.4 0.0 0.1 Intersection Summary HCM 6th Ctrl Delay 13.2 HCM 6th LOS B HCM 6th TWSC 2: S 328th St & 2nd Pl S 02/13/2023 2026 With Project - PM Peak Hour 2026 With Project - PM Peak Hour 5:00 pm 01/17/2023 Intracorp Bailys Site Synchro 11 Report Page 3 Intersection Int Delay, s/veh 0.8 Movement EBL EBT WBT WBR SBL SBR Lane Configurations Traffic Vol, veh/h 16 120 92 15 4 4 Future Vol, veh/h 16 120 92 15 4 4 Conflicting Peds, #/hr 0 0 0 0 0 0 Sign Control Free Free Free Free Stop Stop RT Channelized - None - None - None Storage Length - - - - 0 - Veh in Median Storage, # - 0 0 - 0 - Grade, % - 0 0 - 0 - Peak Hour Factor 86 86 86 86 86 86 Heavy Vehicles, % 0 1 1 0 0 0 Mvmt Flow 19 140 107 17 5 5 Major/Minor Major1 Major2 Minor2 Conflicting Flow All 124 0 - 0 294 116 Stage 1 - - - - 116 - Stage 2 - - - - 178 - Critical Hdwy 4.1 - - - 6.4 6.2 Critical Hdwy Stg 1 - - - - 5.4 - Critical Hdwy Stg 2 - - - - 5.4 - Follow-up Hdwy 2.2 - - - 3.5 3.3 Pot Cap-1 Maneuver 1475 - - - 701 942 Stage 1 - - - - 914 - Stage 2 - - - - 858 - Platoon blocked, % - - - Mov Cap-1 Maneuver 1475 - - - 691 942 Mov Cap-2 Maneuver - - - - 691 - Stage 1 - - - - 901 - Stage 2 - - - - 858 - Approach EB WB SB HCM Control Delay, s 0.9 0 9.6 HCM LOS A Minor Lane/Major Mvmt EBL EBT WBT WBRSBLn1 Capacity (veh/h) 1475 - - - 797 HCM Lane V/C Ratio 0.013 - - - 0.012 HCM Control Delay (s) 7.5 0 - - 9.6 HCM Lane LOS A A - - A HCM 95th %tile Q(veh) 0 - - - 0 HCM 6th TWSC 4: East Site Access & S 328th St 02/13/2023 2026 With Project - PM Peak Hour 2026 With Project - PM Peak Hour 5:00 pm 01/17/2023 Intracorp Bailys Site Synchro 11 Report Page 5 Intersection Int Delay, s/veh 1.3 Movement EBT EBR WBL WBT NBL NBR Lane Configurations Traffic Vol, veh/h 127 15 10 92 24 4 Future Vol, veh/h 127 15 10 92 24 4 Conflicting Peds, #/hr 0 0 0 0 0 0 Sign Control Free Free Free Free Stop Stop RT Channelized - None - None - None Storage Length - - 0 - 0 0 Veh in Median Storage, # 0 - - 0 0 - Grade, % 0 - - 0 0 - Peak Hour Factor 92 92 92 92 92 92 Heavy Vehicles, % 2 2 2 2 2 2 Mvmt Flow 138 16 11 100 26 4 Major/Minor Major1 Major2 Minor1 Conflicting Flow All 0 0 154 0 268 146 Stage 1 - - - - 146 - Stage 2 - - - - 122 - Critical Hdwy - - 4.12 - 6.42 6.22 Critical Hdwy Stg 1 - - - - 5.42 - Critical Hdwy Stg 2 - - - - 5.42 - Follow-up Hdwy - - 2.218 - 3.518 3.318 Pot Cap-1 Maneuver - - 1426 - 721 901 Stage 1 - - - - 881 - Stage 2 - - - - 903 - Platoon blocked, % - - - Mov Cap-1 Maneuver - - 1426 - 715 901 Mov Cap-2 Maneuver - - - - 715 - Stage 1 - - - - 881 - Stage 2 - - - - 896 - Approach EB WB NB HCM Control Delay, s 0 0.7 10 HCM LOS B Minor Lane/Major Mvmt NBLn1NBLn2 EBT EBR WBL WBT Capacity (veh/h) 715 901 - - 1426 - HCM Lane V/C Ratio 0.036 0.005 - - 0.008 - HCM Control Delay (s) 10.2 9 - - 7.5 - HCM Lane LOS B A - - A - HCM 95th %tile Q(veh) 0.1 0 - - 0 -