1. All About the County Road 22 Roundabout
Phil Weber, P.Eng. | GHD (Ourston Roundabout Engineering)
Presentation at the Design and Construction Public Open House, September 17, 2013
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2. Why a Roundabout?

3. Why a Roundabout?
Concerns were raised by residents at a June 2011 open house regarding safety at the intersection of County Road 22 and County Road 2 (Old Tecumseh Road)
Also, left turns from County Road 2 are difficult during peak periods
It was determined that construction of a roundabout would address these concerns because a roundabout can:
Improve safety by lowering speeds and eliminating right-angle and head-on collisions
Improve traffic flow and reduce delay compared to the existing stop control or even traffic signal control
Improve aesthetics by providing a gateway feature with landscaping in the central island
Improve pedestrian access by introducing a pedestrian crossing on the east leg

4. Examples of Central Island Landscaping at Roundabouts

5. Roundabout Construction
2013:
Design of roundabout and contract preparation
Initiate property acquisition
Initiate Stage 2 archaeological investigation
2014:
Complete property acquisition
Complete Stage 2 archaeological investigation
Tender for roundabout
Commence construction summer 2014 – duration approximately 6 months

6. Roundabout Resources
Region of Waterloo
City of London
Ministry of Transportation Ontario (MTO)
Transportation Association of Canada (TAC) atc.ca/english/councilsandcommittees/chiefengineers/geometricdesign.cfm
U.S. Federal Highway Administration (FHWA) safety.fhwa.dot.gov/intersection/roundabouts
GHD (Ourston Roundabout Engineering)

7. How do I Drive a Multi-Lane Roundabout?

8. Features of a Typical Multi-Lane Roundabout

9. How Do I Drive a Multi-Lane Roundabout?
Reduce your speed
Watch for signs that help you decide what exit to take
Watch for signs and road markings that help you decide what lane to enter from
Watch for pedestrians in the crosswalk, and be prepared to stop
Give extra space for large trucks – they may need to use both lanes entering and circulating
Yield to traffic already in the roundabout that comes from your immediate left
Enter the roundabout when there is a gap in traffic
Do not enter and merge beside a vehicle already circulating, even if it is travelling beside the central island

10. How Do I Drive a Multi-Lane Roundabout?
Travel counter-clockwise
Do not stop inside the roundabout – you have the right-of-way over entering traffic
If you are in the roundabout when an emergency vehicle approaches, exit as normal and proceed beyond the splitter island before pulling over
Maintain your lane position as you circulate
When approaching your intended exit, signal right and exit the roundabout
As you exit the roundabout watch for pedestrians in the crosswalk, and be prepared to stop

11. Lane Use at a Multi-Lane Roundabout

12. The Obvious Left-Turn Problem

13. The Not-So-Obvious Left-Turn Problem

14. The Merge Problem

15. A Typical 4-Way Intersection

16. A Typical 4-Leg Roundabout

17. How do I Drive the Cty. Road 22 Roundabout?

18. The County Road 22 Roundabout

19. Driving the County Road 22 Roundabout Westbound

20. Driving the County Road 22 Roundabout Southbound

21. Driving the County Road 22 Roundabout Eastbound

22. Next Steps

23. Comments Comments on the project should be submitted to:
Comments received will be summarized and made available to the public
Ms. Jane Mustac, P.Eng.
Manager, Transportation Planning
County of Essex
360 Fairview Avenue West
Essex, Ontario
N8M 1Y6
Mr. John Zangari, P.Eng.
Project Manager
Dillon Consulting Limited
3200 Deziel Drive, Suite 608
Windsor, Ontario
N8W 5K8

24. Thank you Questions?