Supporting Documentation · May 6, 2026
Final Traffic Impact Analysis
aec2e510e606a1af2c38c73e89ce552d1a1d437a9696db16e214e314aaf50cfeIndexed text
Proposed Supermarket No Build 2: Main Street & Erwin Place AM Intersection Int Delay, s/veh 0.4 Movement EBL EBR NBL NBT SBT SBR Lane Configurations Traffic Vol, veh/h 9 12 4 542 615 5 Future Vol, veh/h 9 12 4 542 615 5 Conflicting Peds, #/hr 0 0 0 0 0 0 Sign Control Stop Stop Free Free Free Free RT Channelized - None - None - None Storage Length 0 - - - - - Veh in Median Storage, # 0 - - 0 0 - Grade, % 0 - - 0 0 - Peak Hour Factor 89 89 89 89 89 89 Heavy Vehicles, % 2 2 2 11 7 2 Mvmt Flow 10 13 4 609 691 6 Major/Minor Minor2 Major1 Major2 Conflicting Flow All 1311 694 697 0 - 0 Stage 1 694 - - - - - Stage 2 617 - - - - - Critical Hdwy 6.42 6.22 4.12 - - - Critical Hdwy Stg 1 5.42 - - - - - Critical Hdwy Stg 2 5.42 - - - - - Follow-up Hdwy 3.518 3.318 2.218 - - - Pot Cap-1 Maneuver 175 443 899 - - - Stage 1 496 - - - - - Stage 2 538 - - - - - Platoon blocked, % - - - Mov Cap-1 Maneuver 174 443 899 - - - Mov Cap-2 Maneuver 174 - - - - - Stage 1 493 - - - - - Stage 2 538 - - - - - Approach EB NB SB HCM Control Delay, s 19.8 0.1 0 HCM LOS C Minor Lane/Major Mvmt NBL NBT EBLn1 SBT SBR Capacity (veh/h) 899 - 266 - - HCM Lane V/C Ratio 0.005 - 0.089 - - HCM Control Delay (s) 9 0 19.8 - - HCM Lane LOS A A C - - HCM 95th %tile Q(veh) 0 - 0.3 - - No Build.syn Synchro 11 Light
M Lane LOS A A C - - HCM 95th %tile Q(veh) 0 - 0.3 - - No Build.syn Synchro 11 Light Report D&D Page 1
Proposed Supermarket No Build 3: Main Street & Kling Street AM Intersection Int Delay, s/veh 3.8 Movement WBL WBR NBT NBR SBL SBT Lane Configurations Traffic Vol, veh/h 105 11 499 52 6 515 Future Vol, veh/h 105 11 499 52 6 515 Conflicting Peds, #/hr 0 0 0 0 0 0 Sign Control Stop Stop Free Free Free Free RT Channelized - None - None - None Storage Length 0 - - - - - Veh in Median Storage, # 0 - 0 - - 0 Grade, % 0 - 0 - - 0 Peak Hour Factor 93 93 93 93 93 93 Heavy Vehicles, % 11 18 11 12 2 7 Mvmt Flow 113 12 537 56 6 554 Major/Minor Minor1 Major1 Major2 Conflicting Flow All 1131 565 0 0 593 0 Stage 1 565 - - - - - Stage 2 566 - - - - - Critical Hdwy 6.51 6.38 - - 4.12 - Critical Hdwy Stg 1 5.51 - - - - - Critical Hdwy Stg 2 5.51 - - - - - Follow-up Hdwy 3.599 3.462 - - 2.218 - Pot Cap-1 Maneuver 216 495 - - 983 - Stage 1 551 - - - - - Stage 2 551 - - - - - Platoon blocked, % - - - Mov Cap-1 Maneuver 214 495 - - 983 - Mov Cap-2 Maneuver 214 - - - - - Stage 1 551 - - - - - Stage 2 546 - - - - - Approach WB NB SB HCM Control Delay, s 38.9 0 0.1 HCM LOS E Minor Lane/Major Mvmt NBT NBRWBLn1 SBL SBT Capacity (veh/h) - - 226 983 - HCM Lane V/C Ratio - - 0.552 0.007 - HCM Control Delay (s) - - 38.9 8.7 0 HCM Lane LOS - - E A A HCM 95th %tile Q(veh) - - 3 0 - No Build.syn Synchro 11 Light Report D&D
- - E A A HCM 95th %tile Q(veh) - - 3 0 - No Build.syn Synchro 11 Light Report D&D Page 2
Proposed Supermarket No Build 1: Main Street & Prospect Place PM Movement EBL EBR NBL NBT SBT SBR Lane Configurations Traffic Volume (veh/h) 0 0 51 540 532 36 Future Volume (Veh/h) 0 0 51 540 532 36 Sign Control Stop Free Free Grade 0% 0% 0% Peak Hour Factor 0.98 0.98 0.98 0.98 0.98 0.98 Hourly flow rate (vph) 0 0 52 551 543 37 Pedestrians Lane Width (ft) Walking Speed (ft/s) Percent Blockage Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 1216 562 580 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 1216 562 580 tC, single (s) 6.4 6.2 4.1 tC, 2 stage (s) tF (s) 3.5 3.3 2.2 p0 queue free % 100 100 95 cM capacity (veh/h) 189 527 994 Direction, Lane # NB 1 SB 1 Volume Total 603 580 Volume Left 52 0 Volume Right 0 37 cSH 994 1700 Volume to Capacity 0.05 0.34 Queue Length 95th (ft) 4 0 Control Delay (s) 1.4 0.0 Lane LOS A Approach Delay (s) 1.4 0.0 Approach LOS Intersection Summary Average Delay 0.7 Intersection Capacity Utilization 68.1% ICU Level of Service C Analysis Period (min) 15 No Build.syn Synchro 11 Light Report D&D Page 1
Proposed Supermarket No Build 2: Main Street & Erwin Place PM Intersection Int Delay, s/veh 0.3 Movement EBL EBR NBL NBT SBT SBR Lane Configurations Traffic Vol, veh/h 7 6 12 656 596 4 Future Vol, veh/h 7 6 12 656 596 4 Conflicting Peds, #/hr 0 0 0 0 0 0 Sign Control Stop Stop Free Free Free Free RT Channelized - None - None - None Storage Length 0 - - - - - Veh in Median Storage, # 0 - - 0 0 - Grade, % 0 - - 0 0 - Peak Hour Factor 98 98 98 98 98 98 Heavy Vehicles, % 2 2 2 2 4 2 Mvmt Flow 7 6 12 669 608 4 Major/Minor Minor2 Major1 Major2 Conflicting Flow All 1303 610 612 0 - 0 Stage 1 610 - - - - - Stage 2 693 - - - - - Critical Hdwy 6.42 6.22 4.12 - - - Critical Hdwy Stg 1 5.42 - - - - - Critical Hdwy Stg 2 5.42 - - - - - Follow-up Hdwy 3.518 3.318 2.218 - - - Pot Cap-1 Maneuver 177 494 967 - - - Stage 1 542 - - - - - Stage 2 496 - - - - - Platoon blocked, % - - - Mov Cap-1 Maneuver 173 494 967 - - - Mov Cap-2 Maneuver 173 - - - - - Stage 1 531 - - - - - Stage 2 496 - - - - - Approach EB NB SB HCM Control Delay, s 20.4 0.2 0 HCM LOS C Minor Lane/Major Mvmt NBL NBT EBLn1 SBT SBR Capacity (veh/h) 967 - 247 - - HCM Lane V/C Ratio 0.013 - 0.054 - - HCM Control Delay (s) 8.8 0 20.4 - - HCM Lane LOS A A C - - HCM 95th %tile Q(veh) 0 - 0.2 - - No Build.syn
0 20.4 - - HCM Lane LOS A A C - - HCM 95th %tile Q(veh) 0 - 0.2 - - No Build.syn Synchro 11 Light Report D&D Page 1
Proposed Supermarket No Build 3: Main Street & Kling Street PM Intersection Int Delay, s/veh 2.7 Movement WBL WBR NBT NBR SBL SBT Lane Configurations Traffic Vol, veh/h 81 26 565 98 13 519 Future Vol, veh/h 81 26 565 98 13 519 Conflicting Peds, #/hr 0 0 0 0 0 0 Sign Control Stop Stop Free Free Free Free RT Channelized - None - None - None Storage Length 0 - - - - - Veh in Median Storage, # 0 - 0 - - 0 Grade, % 0 - 0 - - 0 Peak Hour Factor 99 99 99 99 99 99 Heavy Vehicles, % 5 2 2 2 2 3 Mvmt Flow 82 26 571 99 13 524 Major/Minor Minor1 Major1 Major2 Conflicting Flow All 1171 621 0 0 670 0 Stage 1 621 - - - - - Stage 2 550 - - - - - Critical Hdwy 6.45 6.22 - - 4.12 - Critical Hdwy Stg 1 5.45 - - - - - Critical Hdwy Stg 2 5.45 - - - - - Follow-up Hdwy 3.545 3.318 - - 2.218 - Pot Cap-1 Maneuver 210 487 - - 920 - Stage 1 530 - - - - - Stage 2 572 - - - - - Platoon blocked, % - - - Mov Cap-1 Maneuver 206 487 - - 920 - Mov Cap-2 Maneuver 206 - - - - - Stage 1 530 - - - - - Stage 2 561 - - - - - Approach WB NB SB HCM Control Delay, s 31.7 0 0.2 HCM LOS D Minor Lane/Major Mvmt NBT NBRWBLn1 SBL SBT Capacity (veh/h) - - 240 920 - HCM Lane V/C Ratio - - 0.45 0.014 - HCM Control Delay (s) - - 31.7 9 0 HCM Lane LOS - - D A A HCM 95th %tile Q(veh) - - 2.2 0 - No Build.syn Synchro 11 Light Report D&D
HCM 95th %tile Q(veh) - - 2.2 0 - No Build.syn Synchro 11 Light Report D&D Page 2
Proposed Supermarket No Build 1: Main Street & Prospect Place SAT Movement EBL EBR NBL NBT SBT SBR Lane Configurations Traffic Volume (veh/h) 0 0 35 441 555 12 Future Volume (Veh/h) 0 0 35 441 555 12 Sign Control Stop Free Free Grade 0% 0% 0% Peak Hour Factor 0.93 0.93 0.93 0.93 0.93 0.93 Hourly flow rate (vph) 0 0 38 474 597 13 Pedestrians Lane Width (ft) Walking Speed (ft/s) Percent Blockage Right turn flare (veh) Median type None None Median storage veh) Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 1154 604 610 vC1, stage 1 conf vol vC2, stage 2 conf vol vCu, unblocked vol 1154 604 610 tC, single (s) 6.4 6.2 4.1 tC, 2 stage (s) tF (s) 3.5 3.3 2.2 p0 queue free % 100 100 96 cM capacity (veh/h) 210 499 969 Direction, Lane # NB 1 SB 1 Volume Total 512 610 Volume Left 38 0 Volume Right 0 13 cSH 969 1700 Volume to Capacity 0.04 0.36 Queue Length 95th (ft) 3 0 Control Delay (s) 1.1 0.0 Lane LOS A Approach Delay (s) 1.1 0.0 Approach LOS Intersection Summary Average Delay 0.5 Intersection Capacity Utilization 55.4% ICU Level of Service B Analysis Period (min) 15 No Build.syn Synchro 11 Light Report D&D Page 1
File revisions (1)
- Sep 29, 2026
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