Appendix
Attachment 6 - APPENDIX C: 2019 EXISTING TRAFFIC CONDITIONS
March 10, 2020Pages 567–5714 sections
Detailed modeling report data for existing traffic at key intersections including Erskine Lane/Stoneridge Drive and Watkiss Way.
November 6, 2019Intersection of Erskine Ln/Stoneridge Dr & Watkiss WayIntersection of Burnside Rd & Watkiss WaySynchro 9 and SIDRA 8 reports
APPENDIX C: 2019 EXISTING TRAFFIC CONDITIONS
9 Erskine Lane Development Traffic Impact Assessment
Page 567–571
HCM 2010 TWSC
8: Erskine Ln/Stoneridge Dr & Watkiss Way
11-06-2019
Intersection Int Delay, s/veh: 1.9
| Movement | EBL | EBT | EBR | WBL | WBT | WBR | NBL | NBT | NBR | SBL | SBT | SBR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lane Configurations | ↑ | ↑ | ↑ | ↑ | ||||||||
| Traffic Vol, veh/h | 5 | 363 | 5 | 4 | 111 | 2 | 8 | 5 | 17 | 11 | 5 | 5 |
| Future Vol, veh/h | 5 | 363 | 5 | 4 | 111 | 2 | 8 | 5 | 17 | 11 | 5 | 5 |
| Conflicting Peds, #/hr | 1 | 0 | 7 | 7 | 0 | 1 | 4 | 0 | 2 | 2 | 0 | 4 |
| Sign Control | Free | Free | Free | Free | Free | Free | Stop | Stop | Stop | Stop | Stop | Stop |
| RT Channelized | - | - | None | - | - | None | - | - | None | - | - | None |
| Storage Length | - | - | - | - | - | - | - | - | - | - | - | - |
| Veh in Median Storage, # | - | 0 | - | - | 0 | - | - | 0 | - | - | 0 | - |
| Grade, % | - | 0 | - | - | 0 | - | - | 0 | - | - | 0 | - |
| Peak Hour Factor | 63 | 85 | 63 | 33 | 79 | 50 | 67 | 60 | 85 | 46 | 63 | 42 |
| Heavy Vehicles, % | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Mvmt Flow | 8 | 427 | 8 | 12 | 141 | 4 | 12 | 8 | 20 | 24 | 8 | 12 |
Major/Minor: Major 1 (EB) | Major 2 (WB) | Minor 1 (NB) | Minor 2 (SB)
| Major 1 | Major 2 | Minor 1 | Minor 2 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Conflicting Flow All | 146 | 0 | 0 | 442 | 0 | 0 | 635 | 624 | 440 | 631 | 626 | 148 |
| Stage 1 | - | - | - | - | - | - | 454 | 454 | - | 168 | 168 | - |
| Stage 2 | - | - | - | - | - | - | 181 | 170 | - | 463 | 458 | - |
| Critical Hdwy | 4.1 | - | - | 4.1 | - | - | 7.1 | 6.5 | 6.2 | 7.1 | 6.5 | 6.2 |
| Critical Hdwy Stg 1 | - | - | - | - | - | - | 6.1 | 5.5 | - | 6.1 | 5.5 | - |
| Critical Hdwy Stg 2 | - | - | - | - | - | - | 6.1 | 5.5 | - | 6.1 | 5.5 | - |
| Follow-up Hdwy | 2.2 | - | - | 2.2 | - | - | 3.5 | 4 | 3.3 | 3.5 | 4 | 3.3 |
| Pot Cap-1 Maneuver | 1448 | - | - | 1129 | - | - | 394 | 404 | 621 | 396 | 403 | 904 |
| Stage 1 | - | - | - | - | - | - | 589 | 573 | - | 839 | 763 | - |
| Stage 2 | - | - | - | - | - | - | 825 | 762 | - | 583 | 570 | - |
| Platoon blocked, % | - | - | - | - | - | - | ||||||
| Mov Cap-1 Maneuver | 1447 | - | - | 1122 | - | - | 374 | 393 | 616 | 371 | 393 | 900 |
| Mov Cap-2 Maneuver | - | - | - | - | - | - | 374 | 393 | - | 371 | 393 | - |
| Stage 1 | - | - | - | - | - | - | 581 | 566 | - | 832 | 753 | - |
| Stage 2 | - | - | - | - | - | - | 793 | 752 | - | 551 | 563 | - |
Approach
- EB: HCM Control Delay: 0.1 s; HCM LOS: -
- WB: HCM Control Delay: 0.6 s; HCM LOS: -
- NB: HCM Control Delay: 13.4 s; HCM LOS: B
- SB: HCM Control Delay: 13.9 s; HCM LOS: B
Minor Lane/Major Mvmt
| NBLn1 | EBL | EBT | EBR | WBL | WBT | WBR | SBLn1 | |
|---|---|---|---|---|---|---|---|---|
| Capacity (veh/h) | 470 | 1447 | - | - | 1122 | - | - | 447 |
| HCM Lane V/C Ratio | 0.086 | 0.005 | - | - | 0.011 | - | - | 0.098 |
| HCM Control Delay (s) | 13.4 | 7.5 | 0 | - | 8.2 | 0 | - | 13.9 |
| HCM Lane LOS | B | A | A | - | A | A | - | B |
| HCM 95th %tile Q(veh) | 0.3 | 0 | - | - | 0 | - | - | 0.3 |
Page 567–571
Lanes, Volumes, Timings
11: Burnside Rd & Watkiss Way
11-06-2019
| Lane Group | EBL | EBT | EBR | WBL | WBT | WBR | NBL | NBT | NBR | SBL | SBT | SBR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lane Configurations | ↑ | ↑ | ↑ | ↑ | ||||||||
| Traffic Volume (vph) | 48 | 63 | 36 | 67 | 38 | 52 | 47 | 497 | 288 | 43 | 98 | 6 |
| Future Volume (vph) | 48 | 63 | 36 | 67 | 38 | 52 | 47 | 497 | 288 | 43 | 98 | 6 |
| Ideal Flow (vphpl) | 1900 | 1900 | 1900 | 1900 | 1900 | 1900 | 1900 | 1900 | 1900 | 1900 | 1900 | 1900 |
| Lane Util. Factor | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Ped Bike Factor | 0.99 | 0.99 | 1.00 | 0.97 | 1.00 | |||||||
| Frt | 0.971 | 0.965 | 0.850 | 0.991 | ||||||||
| Flt Protected | 0.981 | 0.973 | 0.993 | 0.985 | ||||||||
| Satd. Flow (prot) | 0 | 1772 | 0 | 0 | 1755 | 0 | 0 | 1870 | 1601 | 0 | 1836 | 0 |
| Flt Permitted | 0.798 | 0.719 | 0.930 | 0.790 | ||||||||
| Satd. Flow (perm) | 0 | 1438 | 0 | 0 | 1294 | 0 | 0 | 1751 | 1548 | 0 | 1470 | 0 |
| Right Turn on Red | Yes | Yes | Yes | Yes | ||||||||
| Satd. Flow (RTOR) | 24 | 30 | 327 | 7 | ||||||||
| Link Speed (k/h) | 50 | 50 | 50 | 50 | ||||||||
| Link Distance (m) | 82.4 | 175.2 | 109.2 | 122.0 | ||||||||
| Travel Time (s) | 5.9 | 12.6 | 7.9 | 8.8 | ||||||||
| Confl. Peds. (#/hr) | 6 | 4 | 4 | 6 | 2 | 8 | 8 | 2 | ||||
| Confl. Bikes (#/hr) | 25 | |||||||||||
| Peak Hour Factor | 0.60 | 0.78 | 0.80 | 0.53 | 0.84 | 0.87 | 0.52 | 0.96 | 0.88 | 0.83 | 0.88 | 0.50 |
| Adj. Flow (vph) | 80 | 81 | 45 | 126 | 45 | 60 | 90 | 518 | 327 | 52 | 111 | 12 |
| Shared Lane Traffic (%) | ||||||||||||
| Lane Group Flow (vph) | 0 | 206 | 0 | 0 | 231 | 0 | 0 | 608 | 327 | 0 | 175 | 0 |
| Turn Type | Perm | NA | Perm | NA | pm+pt | NA | Perm | Perm | NA | |||
| Protected Phases | 4 | 8 | 5 | 2 | 6 | |||||||
| Permitted Phases | 4 | 8 | 2 | 2 | 6 | |||||||
| Detector Phase | 4 | 4 | 8 | 8 | 5 | 2 | 2 | 6 | 6 | |||
| Minimum Initial (s) | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | |||
| Minimum Split (s) | 22.5 | 22.5 | 22.5 | 22.5 | 9.5 | 22.5 | 22.5 | 22.5 | 22.5 | |||
| Total Split (s) | 22.5 | 22.5 | 22.5 | 22.5 | 9.5 | 37.5 | 37.5 | 28.0 | 28.0 | |||
| Total Split (%) | 37.5% | 37.5% | 37.5% | 37.5% | 15.8% | 62.5% | 62.5% | 46.7% | 46.7% | |||
| Maximum Green (s) | 18.0 | 18.0 | 18.0 | 18.0 | 5.0 | 33.0 | 33.0 | 23.5 | 23.5 | |||
| Yellow Time (s) | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | |||
| All-Red Time (s) | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | |||
| Lost Time Adjust (s) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |||||||
| Total Lost Time (s) | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | |||||||
| Lead/Lag | Lead | Lag | Lag | |||||||||
| Lead-Lag Optimize? | Yes | Yes | Yes | |||||||||
| Vehicle Extension (s) | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | |||
| Recall Mode | None | None | None | None | None | Max | Max | Max | Max | |||
| Walk Time (s) | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | ||||
| Flash Dont Walk (s) | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | ||||
| Pedestrian Calls (#/hr) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||
| Act Effct Green (s) | 13.3 | 13.3 | 33.8 | 33.8 | 33.8 | |||||||
| Actuated g/C Ratio | 0.24 | 0.24 | 0.60 | 0.60 | 0.60 | |||||||
| v/c Ratio | 0.58 | 0.70 | 0.58 | 0.31 | 0.20 | |||||||
| Control Delay | 22.9 | 28.8 | 10.6 | 1.8 | 6.5 | |||||||
| Queue Delay | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |||||||
| Total Delay | 22.9 | 28.8 | 10.6 | 1.8 | 6.5 | |||||||
| LOS | C | C | B | A | A | |||||||
| Approach Delay | 22.9 | 28.8 | 7.5 | 6.5 | ||||||||
| Approach LOS | C | C | A | A | ||||||||
| Queue Length 50th (m) | 15.9 | 18.1 | 33.1 | 0.0 | 6.7 | |||||||
| Queue Length 95th (m) | 26.5 | 33.9 | 70.0 | 8.1 | 16.5 | |||||||
| Internal Link Dist (m) | 58.4 | 151.2 | 85.2 | 98.0 | ||||||||
| Turn Bay Length (m) | ||||||||||||
| Base Capacity (vph) | 478 | 436 | 1056 | 1063 | 889 | |||||||
| Starvation Cap Reductn | 0 | 0 | 0 | 0 | 0 | |||||||
| Spillback Cap Reductn | 0 | 0 | 0 | 0 | 0 | |||||||
| Storage Cap Reductn | 0 | 0 | 0 | 0 | 0 | |||||||
| Reduced v/c Ratio | 0.43 | 0.53 | 0.58 | 0.31 | 0.20 |
Intersection Summary
- Area Type: Other
- Cycle Length: 60
- Actuated Cycle Length: 56.1
- Natural Cycle Length: 60
- Control Type: Actuated-Uncoordinated
- Maximum v/c Ratio: 0.70
- Intersection Signal Delay: 12.6
- Intersection LOS: B
- Intersection Capacity Utilization: 64.7%
- ICU Level of Service: C
- Analysis Period (min): 15
[Diagram: Splits and Phases: 11: Burnside Rd & Watkiss Way]
Page 567–571
MOVEMENT SUMMARY
Site: 101 [Watkiss Way / Hospital Access / Eagle Creek Access_2019AM]
New Site Site Category: (None) Roundabout
Movement Performance - Vehicles
| Mov ID | Turn | Demand Flows Total veh/h | Demand Flows HV % | Deg. Satn v/c | Average Delay sec | Level of Service | 95% Back of Queue Vehicles veh | 95% Back of Queue Distance m | Prop. Queued | Effective Stop Rate | Aver. No. Cycles | Average Speed km/h |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| South: Hospital Access | ||||||||||||
| 3 | L2 | 16 | 0.0 | 0.103 | 6.1 | LOS A | 0.3 | 2.6 | 0.46 | 0.40 | 0.46 | 51.8 |
| 8 | T1 | 8 | 0.0 | 0.103 | 6.1 | LOS A | 0.3 | 2.6 | 0.46 | 0.40 | 0.46 | 51.5 |
| 18 | R2 | 41 | 24.1 | 0.103 | 7.3 | LOS A | 0.3 | 2.6 | 0.46 | 0.40 | 0.46 | 49.6 |
| Approach | 65 | 15.3 | 0.103 | 6.8 | LOS A | 0.3 | 2.6 | 0.46 | 0.40 | 0.46 | 50.4 | |
| East: Watkiss Way | ||||||||||||
| 1 | L2 | 110 | 6.7 | 0.326 | 7.2 | LOS A | 1.4 | 11.4 | 0.27 | 0.16 | 0.27 | 51.2 |
| 6 | T1 | 203 | 6.2 | 0.326 | 7.2 | LOS A | 1.4 | 11.4 | 0.27 | 0.16 | 0.27 | 51.1 |
| 16 | R2 | 126 | 3.0 | 0.078 | 0.0 | LOS A | 0.0 | 0.0 | 0.00 | 0.00 | 0.00 | 56.8 |
| Approach | 440 | 5.4 | 0.326 | 5.1 | LOS A | 1.4 | 11.4 | 0.20 | 0.11 | 0.20 | 52.6 | |
| North: Eagle Creek Access | ||||||||||||
| 7 | L2 | 62 | 2.4 | 0.244 | 7.3 | LOS A | 1.0 | 7.3 | 0.47 | 0.41 | 0.47 | 51.3 |
| 4 | T1 | 28 | 0.0 | 0.244 | 7.2 | LOS A | 1.0 | 7.3 | 0.47 | 0.41 | 0.47 | 51.1 |
| 14 | R2 | 102 | 1.6 | 0.244 | 7.3 | LOS A | 1.0 | 7.3 | 0.47 | 0.41 | 0.47 | 49.7 |
| Approach | 191 | 1.6 | 0.244 | 7.3 | LOS A | 1.0 | 7.3 | 0.47 | 0.41 | 0.47 | 50.4 | |
| West: Watkiss Way | ||||||||||||
| 5 | L2 | 73 | 3.4 | 0.490 | 10.4 | LOS B | 2.5 | 19.8 | 0.48 | 0.38 | 0.48 | 49.7 |
| 2 | T1 | 278 | 6.9 | 0.490 | 10.6 | LOS B | 2.5 | 19.8 | 0.48 | 0.38 | 0.48 | 49.5 |
| 12 | R2 | 77 | 0.0 | 0.490 | 10.3 | LOS B | 2.5 | 19.8 | 0.48 | 0.38 | 0.48 | 48.3 |
| Approach | 428 | 5.1 | 0.490 | 10.5 | LOS B | 2.5 | 19.8 | 0.48 | 0.38 | 0.48 | 49.3 | |
| All Vehicles | 1124 | 5.2 | 0.490 | 7.6 | LOS A | 2.5 | 19.8 | 0.37 | 0.28 | 0.37 | 50.8 |
Site Level of Service (LOS) Method: Delay & v/c (HCM 6). Site LOS Method is specified in the Parameter Settings dialog (Site tab). Roundabout LOS Method: Same as Signalised Intersections. Vehicle movement LOS values are based on average delay and v/c ratio (degree of saturation) per movement. LOS F will result if v/c > 1 irrespective of movement delay value (does not apply for approaches and intersection). Intersection and Approach LOS values are based on average delay for all movements (v/c not used as specified in HCM 6). Roundabout Capacity Model: US HCM 2010. HCM Delay Formula option is used. Control Delay does not include Geometric Delay since Exclude Geometric Delay option applies. Gap-Acceptance Capacity: Traditional M1. HV (%) values are calculated for All Movement Classes of All Heavy Vehicle Model Designation.
Page 567–571
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