Construction Site Safety — Traffic Control Zones in Canada

1) Typical Canadian work zone layout

• Advance warning area: uses 3–4 signs spaced by road speed. Example: “Road Work Ahead,” “Lane Closed,” “Merge Left.”
• Transition area: delineated by cones or posts tapering traffic.
• Activity area: workers, machinery, material storage. Protect with barriers and warning lights.
• Termination area: return traffic to normal flow, maintain line of sight for re-entry.

2) Essential equipment list

3) Traffic cone & delineator spacing

Always close the taper with a cone line that drivers can read under headlight beam distance.

4) Signs & boards — placement and height

• Mount temporary signs at 1.5–2.2 m bottom height for city roads; 1.2 m in work zones with barriers.
• Use HIP or DG reflective sheeting for night visibility.
• Ensure bilingual (EN/FR) wording where required by provincial or federal rules.
• Angle signs toward driver approach for better retroreflection.

5) Barriers, barricades & fencing

• Plastic water barriers: use interlocking models with reflective panels; fill ⅔ with water for stability.
• Metal barricades: ideal for pedestrians at short-term events or sidewalk diversions.
• Fencing: add safety mesh to mark boundaries, prevent debris from entering traffic lanes.

6) Flaggers and EN/FR communication

• Flaggers must wear CSA Z96 high-vis apparel and use paddles displaying “STOP / SLOW” in English and French.
• Position flaggers to be visible to both directions; stand on shoulder, not live lane.
• Coordinate hand signals and radio codes before each shift.

7) Night work & lighting standards

• Use solar warning lamps at all tapers and barrier ends.
• Maintain illumination ≥ 10 lux across active area; glare shields for traffic-facing lights.
• Retroreflective materials must be visible from ≥ 150 m under headlights.

8) Pedestrian detours & safe walkways

• Provide temporary sidewalks or fenced corridors with reflective mesh or rails.
• Use portable ramps where curbs are interrupted; minimum width 1.2 m.
• Mark detour routes in both EN/FR; include accessible signage and tactile warning strips if required.

9) Common setup mistakes

• Using faded or dirty cones—poor visibility under headlights.
• Placing signs too close to hazard (no reaction distance).
• Unprotected flaggers or equipment behind single cones.
• Improper taper length—drivers merge too late.

10) Legal / compliance notes (Canada)