Traffic Impact Assessment

Author: MJ Oh Reviewer: Nathan Carswell, P.Eng., Prepared for: WestUrban Developments Our File: 2755.B01 Date: August 06, 2020

#501-740 Hillside Avenue Victoria, BC V8T 1Z4 T 250.388.9877 F 250.388.9879 wattconsultinggroup.com

TABLE OF CONTENTS

• 1.0 INTRODUCTION................................................................................................... 1
  • 1.1 Study Area.............................................................................................................1
• 2.0 EXISTING CONDITIONS ...................................................................................... 2
  • 2.1 Land Use ...............................................................................................................2
  • 2.2 Road Network........................................................................................................2
  • 2.3 Traffic Count..........................................................................................................2
  • 2.4 Traffic Model..........................................................................................................3
  • 2.5 Existing Traffic Conditions (View Royal)................................................................4
  • 2.6 Existing Traffic Conditions (MoTI) .........................................................................5
• 3.0 BACKGROUND TRAFFIC CONDITIONS ............................................................ 6
  • 3.1 7 Erskine Lane Traffic ...........................................................................................7
  • 3.2 2022 Background Traffic Conditions .....................................................................8
    • 3.2.1 Helmcken / Watkiss Intersection .............................................................10
  • 3.3 2032 Background Conditions ..............................................................................11
    • 3.3.1 Helmcken / Watkiss Intersection .............................................................13
• 4.0 POST DEVELOPMENT CONDITIONS............................................................... 14
  • 4.1 Proposed Land Use.............................................................................................14
  • 4.2 Site Access..........................................................................................................14
  • 4.3 Trip Assignment ..................................................................................................15
  • 4.4 2022 Opening Day Traffic Conditions .................................................................17
    • 4.4.1 Helmcken / Watkiss Intersection .............................................................19
  • 4.5 2032 Post Development Conditions ....................................................................20
    • 4.5.1 Helmcken / Watkiss Intersection .............................................................22
  • 4.6 Left Turn Lane Review ........................................................................................23
  • 4.7 Erskine Lane / Watkiss Road ..............................................................................23
  • 4.8 Revision to Site Plan ...........................................................................................25
• 5.0 TRAFFIC CALMING ........................................................................................... 26
• 6.0 ACCESS REVIEW .............................................................................................. 27
  • 6.1 Access Spacing...................................................................................................27
  • 6.2 Sight Distances ...................................................................................................27
• 7.0 ACTIVE TRANSPORTATION............................................................................. 27
  • 7.1 Pedestrians and Cyclists .....................................................................................27
  • 7.2 Transit .................................................................................................................28
• 8.0 TRANSPORTATION DEMAND MANAGEMENT ............................................... 29
  • 8.1 Electric Bicycles ..................................................................................................29
  • 8.2 Secure Bicycle Parking .......................................................................................29
  • 8.3 Carpooling ...........................................................................................................29
  • 8.4 Carshare..............................................................................................................30
  • 8.5 TDM Impact on Traffic.........................................................................................30
• 9.0 CONCLUSIONS.................................................................................................. 30
• 10.0 RECOMMENDATIONS....................................................................................... 32

APPENDICES

Appendix A: Synchro Background

LIST OF FIGURES

• Figure 1: Study Intersections and Site Location ...........................................................................1
• Figure 2: 2019/2020 Existing Traffic Volumes ..............................................................................4
• Figure 3: 2020 Helmcken Road/Watkiss Way Traffic ...................................................................5
• Figure 4: AM Trip Assignment for 7 Erskine Lane (Site Outlined in Red).....................................8
• Figure 5: PM Trip Assignment for 7 Erskine Lane (Site Outlined in Red).....................................8
• Figure 6: 2022 Background Traffic Volumes.................................................................................9
• Figure 7: 2022 Background Helmcken Road/Watkiss Way Traffic .............................................10
• Figure 8: 2032 Background Traffic Volumes...............................................................................12
• Figure 9: 2032 Background Helmcken Road/Watkiss Way Traffic .............................................13
• Figure 10: Proposed Site Plan ....................................................................................................15
• Figure 11: Trip Assignment – AM Peak Hour .............................................................................16
• Figure 12: Trip Assignment – PM Peak Hour .............................................................................17
• Figure 13: 2022 Post Development Volumes .............................................................................18
• Figure 14: 2022 Post Development Helmcken Road/Watkiss Way Traffic .................................19
• Figure 15: 2032 Post Development Volumes .............................................................................21
• Figure 16: 2032 Post Development Helmcken Road/Watkiss Way Traffic .................................22
• Figure 17: Left-turn Lane Warrant...............................................................................................23

LIST OF TABLES

• Table 1: 2019/2020 AM and PM Peak Hour Traffic Conditions ....................................................4
• Table 2: 2020 AM and PM Peak Hour Traffic Conditions at Watkiss/Helmcken...........................6
• Table 3: 2022 Background Traffic Conditions...............................................................................9
• Table 4: 2022 AM and PM Peak Hour Background Traffic Conditions at Watkiss/Helmcken.....11
• Table 5: 2032 Background Traffic Conditions.............................................................................12
• Table 6: 2032 AM and PM Peak Hour Background Traffic Conditions at Watkiss/Helmcken.....13
• Table 7: Peak Hour Trip Generation Rates.................................................................................14
• Table 8: Peak Hour Development Trips......................................................................................14
• Table 9: 2022 Post Development Traffic Condiitons...................................................................18
• Table 10: 2022 Post Development Traffic Conditions at Watkiss/Helmcken ..............................19
• Table 11: 2032 Post Development Traffic Conditions.................................................................21
• Table 12: 2032 Post Development Traffic Conditions at Watkiss/Helmcken ..............................22
• Table 13: AM Peak Hour 2032 Post Development Option Comparison .....................................24
• Table 14: PM Peak Hour 2032 Post Development Option Comparison .....................................24
• Table 15: Peak Hour Development Trips....................................................................................25
• Table 16: Comparison of Peak Hour Development Trips ...........................................................25
• Table 17: Sight Distances at Access 1 based on 30km/h...........................................................27

1.0 INTRODUCTION

Watt Consulting Group was retained by WestUrban Developments to conduct a traffic impact assessment (TIA) for a proposed residential development located at 9 Erskine Lane in the Town of View Royal, BC. This report reviews existing and post development traffic conditions for both the short- and long-term horizon. The report also reviews the site accesses and the active transportation network.

1.1 STUDY AREA

The following key intersections will be studied along with the proposed development accesses located on Erskine Lane:

• Watkiss Way / Erskine Lane / Stoneridge Drive (unsignalized, two-way stop controlled);
• Burnside Road W / Watkiss Way (signalized);
• Watkiss Way / Hospital Access / Mall Access (unsignalized, roundabout); and
• Watkiss Way / Chancellor / Helmcken Road (signalized).

Figure 1 shows the study intersections and site location.

2.0 EXISTING CONDITIONS

2.1 LAND USE

The proposed site is currently zoned as A1 (Rural) and there is an existing single-family home on the site. The surrounding land use is a mix of multi-family and single family residential along Erskine Lane and Stoneridge Drive, with the Victoria General Hospital to the east. A proposed multi-family development is planned for the adjacent property at 7 Erskine Lane.

Other projects, proposed, in the area include the Eagle Nest development at the corner of Burnside Road / Helmcken Road and the BC Transit HandyDart facility at the corner of Burnside Road / Watkiss Way (2401 Burnside Road).

2.2 ROAD NETWORK

Watkiss Way is a two-lane major road with a posted speed limit of 50km/h. Burnside Road W is a two-lane collector road with a posted speed limit of 50km/h. Erskine Lane and Stoneridge Drive are two-lane local roads with a posted speed limit of 30km/h.

As Erskine Lane dead ends south of the proposed site, all site traffic will use the intersection of Watkiss Way / Erskine Lane. The four-legged intersection of Watkiss Way / Erskine Lane is stop-controlled on Erskine Lane.

Helmcken Road is a major road with a combination of raised center median, dedicated left turn lanes and a two way left turn lane that provides access to residential properties between Burnside Road and Watkiss Way / Chancellor Avenue. The intersection of Helmcken Rd / Watkiss Way / Chancellor Ave is a four legged signalized intersection. Dedicated left turn lanes are provided on all approaches to the intersection and the Helmcken Road westbound approach includes a channelized right turn island. The left turn movements on Helmcken Road provide fully protected left turn signal phasing. The eastbound left turn movement (Watkiss Way onto Helmcken Road) provides protected/permitted left turn signal phasing.

2.3 TRAFFIC COUNT

Traffic count data was taken from a previous study. Turning movement counts were conducted for the Watkiss Way intersections during the AM and PM peak hours (8:00AM – 9:00AM and 4:00PM to 5:00PM, respectively) on the following dates:

• Watkiss Way / Burnside Road: November 14, 2018
• Watkiss Way / Erskine Lane: November 16, 2017
• Watkiss Way / Victoria General Access: November 13, 2018

The existing counts were adjusted to 2019 traffic volumes using a 2% annual growth rate. This growth rate was also used to determine future background traffic volumes. All traffic volumes were balanced.