Document 1
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Transportation, Utilities and Public Works
MAINTENANCE QUALITY STANDARDS
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Status: Recommended for Approval |
WINTER MAINTENANCE Snow and Ice Control – Roads |
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Outcome
The main outcome of snow and ice control of roads is safe and passable roads by reducing the hazards caused by snow and ice accumulation on the road surface.
Description
This standard applies to winter snow and ice control operations on all City roads, including adjacent shoulders and bicycle lanes where designated as City cycling routes. The standard meets the provisions of Ontario Regulation 239/02, the “Minimum Maintenance Standards for Municipal Roads”.
This standard does not apply to shoulders or parking lanes adjacent to roads unless these form part of the designated City cycling routes. Snow and ice control for the foregoing items shall be considered as winter cleanup and carried out separately. Winter cleanup is to be carried out as soon as resources permit and only after the work detailed herein has been completed.
Snow
and ice control operations can be carried out 24/7 subject to weather
conditions and in a manner that will enable the City to achieve this standard
with available resources.
Under extreme winter storm conditions (i.e. those that exceed normal conditions), snow and ice control operations will be carried out based on the capacity of resources in as continuous a manner as practicable, consistent with the classes of roads as detailed in Table 103.01.01.
Standard
Bare Pavement, Centre-Bare and Snow Packed treatment standards are used for various classes of roadway as defined in Tables 103.01.01.
- Bare Pavement: requires that snow and ice be controlled, cleared and/or prevented for the full travelled road pavement width, including flush medians of 2 m width or less, paved shoulders and/or adjacent cycling lanes. It does not include parking lanes.
- Centre-Bare: requires that snow and ice be controlled, cleared and/or prevented in a strip down the middle of the road pavement width for a minimum width of 2.5 m on each side of centreline.
- Snow-Packed: requires that snow and ice be cleared and that ruts and/or potholes that may cause poor vehicle control be levelled off. Abrasive or deicing materials are applied at intersections, hills and sharp curves.
Service Level
For treating icy roads, resources are to be deployed as soon as practicable after becoming aware of the icy conditions. Icy roads are to be treated within the times defined in Table 103.01.01 after becoming aware of the icy conditions.
For snow clearing, resources are to be deployed and snow clearing completed as defined in Table 103.01.01. If the depth of snow accumulation is less than the minimum for deployment, then resources may be deployed subject to road conditions resulting from previous snow accumulations or from forecasted weather conditions.
Snow and ice
control operations will not exceed the conditions prescribed by Ontario
Regulation 239/02, Minimum Maintenance Standards for Municipal Highways.
Related Standards
102.01 ROUTINE ROAD PATROLS – General Visual
103.02 WINTER MAINTENANCE – Snow and Ice Control- Sidewalks and Pathways
103.03 WINTER MAINTENANCE – Snow Removal
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Table 103.01.01 – Snow and Ice Control on Roads |
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Road
Maintenance Class |
Road Type |
Minimum Depth of Snow Accumulation for Deployment of Resources (Depth as per
MMSMH) |
Time to Clear
Snow Accumulation From the End of Snow Accumulation or Time to
Treat Icy Conditions (Time as per
MMSMH) |
Treatment Standard |
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Bare Pavement |
Centre Bare |
Snow Packed |
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1 |
A |
High Priority Roads |
As accumulation begins (2.5-8 cm depending on class) |
2 h (3-4
h) |
Ö |
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B |
Ö |
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2 |
A |
Most Arterials |
3 h (3-6
h) |
Ö |
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B |
Ö |
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3 |
A |
Most Major Collectors |
4 h (8-12
h) |
Ö |
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B |
Ö |
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4 |
A |
Most Minor Collectors |
5 cm (8
cm) |
6 h (12-16
h) |
Ö |
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B |
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Ö |
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C |
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Ö |
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5 |
A, C |
Residential Roads and Lanes |
7 cm (10
cm) |
10 h (16-24
h) |
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Ö |
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B |
10 cm (not defined) |
16 h (not
defined) |
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Ö |
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Notes: - Refer to Table 101.01.01 for description
of road maintenance classes.
- MMSMH refers to Ontario
Regulation 239/02, Minimum Maintenance Standards for Municipal Highways.