Supporting Documentation · Jun 3, 2026
20 2026 01 21 Eagle Rock Ave and Oval Road Laurel Avenue Traffic Signal Design Report
2fd96061f763c297bef412dcd09909a5e693b90afd9f7782b6169b9eadec4966Indexed text
Lanes, Volumes, Timings 2027 Build (Unsignalized) 1: Laurel Avenue (CR 634) & Eagle Rock Avenue (CR 611) PM Peak Hour Lane Group EBT EBR WBL WBT NBL NBR Permitted Phases 6 Detector Phase 2 1 6 8 Switch Phase Minimum Initial (s) 19.0 7.0 29.0 7.0 7.0 Minimum Split (s) 26.0 10.0 36.0 13.0 13.0 Total Split (s) 26.0 15.0 41.0 33.0 33.0 Total Split (%) 35.1% 20.3% 55.4% 44.6% 44.6% Maximum Green (s) 19.0 12.0 34.0 27.0 27.0 Yellow Time (s) 5.0 3.0 5.0 4.0 4.0 All-Red Time (s) 2.0 0.0 2.0 2.0 2.0 Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 Total Lost Time (s) 7.0 3.0 7.0 6.0 6.0 Lead/Lag Lag Lead Lead-Lag Optimize? Yes Yes Vehicle Extension (s) 2.0 2.0 2.0 2.0 2.0 Recall Mode Min None Min None None Act Effct Green (s) 19.2 36.7 32.6 21.9 21.9 Actuated g/C Ratio 0.28 0.54 0.48 0.32 0.32 v/c Ratio 0.72 0.73 0.20 0.85 0.54 Control Delay (s/veh) 22.8 22.6 11.2 36.6 4.6 Queue Delay 0.0 0.0 0.0 0.0 0.0 Total Delay (s/veh) 22.8 22.6 11.2 36.6 4.6 LOS C C B D A Approach Delay (s/veh) 22.8 16.5 21.6 Approach LOS C B C 90th %ile Green (s) 19.0 12.0 34.0 27.0 27.0 90th %ile Term Code Max Max Hold Max Max 70th %ile Green (s) 19.0 12.0 34.0 27.0 27.0 70th %ile Term Code Max Max Hold Max Max 50th %ile Green (s) 19.0 11.7 33.7 23.8 23.8 50th %ile Term Code Max
27.0 27.0 70th %ile Term Code Max Max Hold Max Max 50th %ile Green (s) 19.0 11.7 33.7 23.8 23.8 50th %ile Term Code Max Gap Hold Gap Gap 30th %ile Green (s) 19.0 9.4 31.4 19.3 19.3 30th %ile Term Code Max Gap Hold Gap Gap 10th %ile Green (s) 19.0 7.1 29.1 14.0 14.0 10th %ile Term Code Max Gap Hold Gap Gap Stops (vph) 495 148 169 397 39 Fuel Used(gal) 13 4 4 7 1 CO Emissions (g/hr) 885 303 292 497 89 NOx Emissions (g/hr) 172 59 57 97 17 VOC Emissions (g/hr) 205 70 68 115 21 Dilemma Vehicles (#) 52 0 17 0 0 Queue Length 50th (ft) 127 68 43 194 0 Queue Length 95th (ft) 203 #173 72 #339 55 Internal Link Dist (ft) 185 306 124 Turn Bay Length (ft) 120 Base Capacity (vph) 1082 451 1816 728 820 Starvation Cap Reductn 0 0 0 0 0 Spillback Cap Reductn 0 0 0 0 0 Storage Cap Reductn 0 0 0 0 0 Scenario 2 2027 Build (Unsignalized) 11:08 am 01/21/2026 PM Peak Hour Synchro 12 Report Langan Page 2
Lanes, Volumes, Timings 2027 Build (Unsignalized) 1: Laurel Avenue (CR 634) & Eagle Rock Avenue (CR 611) PM Peak Hour Lane Group EBT EBR WBL WBT NBL NBR Reduced v/c Ratio 0.72 0.67 0.19 0.68 0.54 Intersection Summary Area Type: Other Cycle Length: 74 Actuated Cycle Length: 67.7 Natural Cycle: 60 Control Type: Semi Act-Uncoord Maximum v/c Ratio: 0.85 Intersection Signal Delay (s/veh): 20.6 Intersection LOS: C Intersection Capacity Utilization 76.6% ICU Level of Service D Analysis Period (min) 15 90th %ile Actuated Cycle: 74 70th %ile Actuated Cycle: 74 50th %ile Actuated Cycle: 70.5 30th %ile Actuated Cycle: 63.7 10th %ile Actuated Cycle: 56.1 # 95th percentile volume exceeds capacity, queue may be longer. Queue shown is maximum after two cycles. Splits and Phases: 1: Laurel Avenue (CR 634) & Eagle Rock Avenue (CR 611) Scenario 2 2027 Build (Unsignalized) 11:08 am 01/21/2026 PM Peak Hour Synchro 12 Report Langan Page 3
HCM 7th TWSC 2027 Build (Unsignalized) 2: Eagle Rock Avenue (CR 611) & Oval Road PM Peak Hour Intersection Int Delay, s/veh 9.2 Movement EBL EBT WBT WBR SBL SBR Lane Configurations Traffic Vol, veh/h 166 693 473 67 70 112 Future Vol, veh/h 166 693 473 67 70 112 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 91 91 91 91 91 91 Heavy Vehicles, % 1 0 0 0 1 0 Mvmt Flow 182 762 520 74 77 123 Major/Minor Major1 Major2 Minor2 Conflicting Flow All 593 0 - 0 1302 297 Stage 1 - - - - 557 - Stage 2 - - - - 746 - Critical Hdwy 4.12 - - - 6.82 6.9 Critical Hdwy Stg 1 - - - - 5.82 - Critical Hdwy Stg 2 - - - - 5.82 - Follow-up Hdwy 2.21 - - - 3.51 3.3 Pot Cap-1 Maneuver 986 - - - 154 706 Stage 1 - - - - 540 - Stage 2 - - - - 432 - Platoon blocked, % - - - Mov Cap-1 Maneuver 986 - - - 118 706 Mov Cap-2 Maneuver - - - - 118 - Stage 1 - - - - 414 - Stage 2 - - - - 432 - Approach EB WB SB HCM Ctrl Dly, s/v 3.05 0 65.32 HCM LOS F Minor Lane/Major Mvmt EBL EBT WBT WBR SBLn1 Capacity (veh/h) 696 - - - 241 HCM Lane V/C Ratio 0.185 - - - 0.829 HCM Ctrl Dly (s/v) 9.5 1.5 - - 65.3 HCM Lane LOS A A - - F HCM 95th %tile Q(veh) 0.7 - - - 6.5 Scenario 2 2027 Build
CM Ctrl Dly (s/v) 9.5 1.5 - - 65.3 HCM Lane LOS A A - - F HCM 95th %tile Q(veh) 0.7 - - - 6.5 Scenario 2 2027 Build (Unsignalized) 11:08 am 01/21/2026 PM Peak Hour Synchro 12 Report Langan Page 5
2027 BUILD SIGNALIZED
Lanes, Volumes, Timings 2027 Build (Signalized) 1: Laurel Avenue (CR 634) & Eagle Rock Avenue (CR 611) AM Peak Hour Lane Group EBT EBR WBL WBT NBL NBR Lane Configurations Traffic Volume (vph) 294 435 492 408 282 283 Future Volume (vph) 294 435 492 408 282 283 Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 Lane Width (ft) 11 12 11 11 12 12 Storage Length (ft) 0 575 0 0 Storage Lanes 0 1 1 1 Taper Length (ft) 50 25 Lane Util. Factor 0.95 0.95 1.00 0.95 1.00 1.00 Frt 0.910 0.850 Flt Protected 0.950 0.950 Satd. Flow (prot) 3107 0 1694 3455 1770 1583 Flt Permitted 0.167 0.950 Satd. Flow (perm) 3107 0 298 3455 1770 1583 Right Turn on Red Yes Yes Satd. Flow (RTOR) 443 298 Link Speed (mph) 40 40 35 Link Distance (ft) 265 830 204 Travel Time (s) 4.5 14.1 4.0 Peak Hour Factor 0.95 0.95 0.95 0.95 0.95 0.95 Heavy Vehicles (%) 1% 3% 3% 1% 2% 2% Adj. Flow (vph) 309 458 518 429 297 298 Shared Lane Traffic (%) Lane Group Flow (vph) 767 0 518 429 297 298 Enter Blocked Intersection No No No No No No Lane Alignment Left Right Left Left Left Right Median Width(ft) 10 11 12 Link Offset(ft) 0 0 25 Crosswalk Width(ft) 35 15 16 Two way Left Turn Lane Headway
11 12 Link Offset(ft) 0 0 25 Crosswalk Width(ft) 35 15 16 Two way Left Turn Lane Headway Factor 1.04 1.00 1.04 1.04 1.00 1.00 Turning Speed (mph) 9 15 15 9 Number of Detectors 2 1 2 1 1 Detector Template Thru Left Thru Left Right Leading Detector (ft) 100 20 100 20 20 Trailing Detector (ft) 0 0 0 0 0 Detector 1 Position(ft) 0 0 0 0 0 Detector 1 Size(ft) 6 20 6 20 20 Detector 1 Type Cl+Ex Cl+Ex Cl+Ex Cl+Ex Cl+Ex Detector 1 Channel Detector 1 Extend (s) 0.0 0.0 0.0 0.0 0.0 Detector 1 Queue (s) 0.0 0.0 0.0 0.0 0.0 Detector 1 Delay (s) 0.0 0.0 0.0 0.0 0.0 Detector 2 Position(ft) 94 94 Detector 2 Size(ft) 6 6 Detector 2 Type Cl+Ex Cl+Ex Detector 2 Channel Detector 2 Extend (s) 0.0 0.0 Turn Type NA pm+pt NA Prot Prot Scenario 1 2027 Build (Signalized) 11:52 am 01/21/2026 AM Peak Hour Synchro 12 Report Langan Page 1
Lanes, Volumes, Timings 2027 Build (Signalized) 1: Laurel Avenue (CR 634) & Eagle Rock Avenue (CR 611) AM Peak Hour Lane Group EBT EBR WBL WBT NBL NBR Protected Phases 2 1 6 8 8 Permitted Phases 6 Detector Phase 2 1 6 8 Switch Phase Minimum Initial (s) 20.0 7.0 30.0 25.0 25.0 Minimum Split (s) 26.0 10.0 36.0 32.0 32.0 Total Split (s) 35.0 15.0 50.0 40.0 40.0 Total Split (%) 38.9% 16.7% 55.6% 44.4% 44.4% Maximum Green (s) 29.0 12.0 44.0 33.0 33.0 Yellow Time (s) 4.0 3.0 4.0 4.0 4.0 All-Red Time (s) 2.0 0.0 2.0 3.0 3.0 Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 Total Lost Time (s) 6.0 3.0 6.0 7.0 7.0 Lead/Lag Lag Lead Lead-Lag Optimize? Yes Yes Vehicle Extension (s) 2.0 2.0 2.0 2.0 2.0 Recall Mode C-Min None C-Min None None Act Effct Green (s) 20.9 54.7 51.7 25.3 25.3 Actuated g/C Ratio 0.23 0.61 0.57 0.28 0.28 v/c Ratio 0.72 0.85 0.22 0.60 0.45 Control Delay (s/veh) 17.2 31.2 4.3 33.7 5.5 Queue Delay 0.0 0.0 0.0 0.0 0.0 Total Delay (s/veh) 17.2 31.2 4.3 33.7 5.5 LOS B C A C A Approach Delay (s/veh) 17.2 19.0 19.6 Approach LOS B B B 90th %ile Green (s) 24.5 22.9 50.4 26.6 26.6 90th %ile Term Code Coord Max Coord Gap Gap 70th %ile Green (s) 20.0 29.0 52.0 25.0 25.0 70th %ile Term Code Coord Max Coord Min Min 50th %ile Green (s) 20.0
p Gap 70th %ile Green (s) 20.0 29.0 52.0 25.0 25.0 70th %ile Term Code Coord Max Coord Min Min 50th %ile Green (s) 20.0 29.0 52.0 25.0 25.0 50th %ile Term Code Coord Max Coord Min Min 30th %ile Green (s) 20.0 29.0 52.0 25.0 25.0 30th %ile Term Code Coord Max Coord Min Min 10th %ile Green (s) 20.0 29.0 52.0 25.0 25.0 10th %ile Term Code Coord Max Coord Min Min Stops (vph) 294 321 75 238 31 Fuel Used(gal) 10 9 3 4 1 CO Emissions (g/hr) 692 633 237 289 68 NOx Emissions (g/hr) 135 123 46 56 13 VOC Emissions (g/hr) 160 147 55 67 16 Dilemma Vehicles (#) 41 0 22 0 0 Queue Length 50th (ft) 88 80 19 149 0 Queue Length 95th (ft) 145 #412 27 229 58 Internal Link Dist (ft) 185 750 124 Turn Bay Length (ft) 575 Base Capacity (vph) 1301 611 1984 649 659 Starvation Cap Reductn 0 0 0 0 0 Spillback Cap Reductn 0 0 0 0 0 Scenario 1 2027 Build (Signalized) 11:52 am 01/21/2026 AM Peak Hour Synchro 12 Report Langan Page 2
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- Sep 29, 2026
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