Derry Road noise wall conversion
Derry Road between Tenth Line and Danton Promenade
Background
Under the Region of Peel’s Private Noise Attenuation Wall Conversion Program, we are currently in the design phase for the replacement of the existing noise walls along Derry Road between Tenth Line and Danton Promenade.
Under the Program, there is no cost to you for this noise wall replacement and its future maintenance, as after conversion, these noise walls will become the Region’s responsibility.
Wooden (cedar) or concrete noise walls
The existing noise wall material is concrete and can be replaced with either concrete panels or cedar wood. For either material, noise reduction properties and wall height will remain similar to the existing wall. The total cost of the noise wall replacement with wood or concrete is very similar. The main difference is the impact on the number of trees required to be cut down:
- 80-90 trees to be removed for concrete composite noise walls
- 20-30 trees to be removed for wood noise walls
Precast concrete sound wall – Dixie Road (from Clark Boulevard to Birchbank Road), Brampton
Precast concrete sound wall – Finch Avenue West (from Darcel Avenue to Highway 427), Mississauga
Wood noise wall – Erin Mills (South of Dundas Street West), Mississauga
Wood noise wall – Dundas Street West, at Erin Mills, Mississauga
| Category | Composite concrete noise walls | Cedar wood noise walls |
|---|---|---|
Noise attenuation effectiveness |
|
|
Material longevity |
Up to 40 years depending on environmental factors |
15 to 30 years depending on environmental factors |
No maintenance required |
No maintenance required |
|
Constructability |
Concrete panels are heavy and customizing to size is difficult, labour intensive and expensive |
Wood panels are light. Customizing (cut to size) can be easily done quickly on site |
Installation is difficult and slow, requiring use of larger equipment (crane) and labourers |
Installation is easy and fast, requiring use of small equipment and labourers |
|
Larger workspace area is required for installation |
Small workspace area is required for installation |
|
More difficult to maneuver equipment in constrained areas due to trees and utilities |
Easier to maneuver equipment in constrained areas due to trees and utilities |
|
Damaged panel is normally replaced, not repaired, approximately 3-month process |
Damage can be repaired easily and fast (new boards can be delivered and installed same day) |
|
Installation and tree removal |
Wall height approximately 1.8 meters (6 feet) |
Wall height approximately 1.8 meters (6 feet) |
Standard steel post spacing of 5.0 meters (16 feet) |
Standard steel post spacing of 2.5 meters (8 feet) |
|
Required removal of trees: |
Required removal of trees: |
|
Require many trees to be removed and pruned since large equipment is required to install the footings and pre-cast noise wall panels |
Some trees to be removed but mainly pruned to install the footings and wood noise wall near a tree. The impact is normally less than a concrete wall. |
|
More ground restoration required due to disturbance caused by large and heavy equipment |
Less ground restoration required due to disturbance caused by smaller equipment |
|
| Aesthetics | Concrete wall can have finish to match existing noise walls to the east and can provide adjacent community natural appearance continuity |
Can be finished in different stains colour to provide the adjacent community natural appearance continuity |
Doesn’t blend in with wood fences |
Blends in with wood fences |
|
More trees require removal due to equipment and workspace requirements compared to wood panels |
Fewer tree removals as part of the installation compared to concrete panels |
|
Cost |
No cost advantage of one over the other |
|
Feedback results
Feedback from the public was given in June 2020. The project team reviewed the responses received in selecting the noise wall replacement material.
Summary of the results received from the participants that provided feedback for the Noise Walls material preference along Derry Road Noise Wall between Tenth Line and Danton Promenade:
| Material | North side | South side |
|---|---|---|
| Wood | 29% | 30% |
| Concrete | 71% | 70% |
The average response rate was 44%. Based on the feedback results, the majority of the participants prefer concrete noise walls.
For any questions about the survey results or the project please contact:
Project Manager, Region of Peel
10 Peel Centre Drive, Suite B, 4th Floor
Brampton, ON L6T 4B9
Tel: 905-791-7800 ext. 7429
Toll Free: 1-888-919-7800
P.Eng. Consultant Project Manager,
Planmac Engineering Inc.
80 North Queen Street, Suite 400
Toronto, Ontario, M8Z 2C9
Tel: 416-626-5300 ext. 204
This notice was first issued on March 17, 2021.
