In Canada, there can be no obstructions within how many meters inside the fence?

• A. 0 meters
• B. 2 meters
• C. 5 meters
• D. 1 meter

Answer: (D)

A small clearance inside the fence is kept to ensure the boundary between public areas and the airside remains unobstructed for safety and security operations. Keeping an unobstructed zone of one meter right inside the fence provides enough room for people, signage, and maintenance activities without clutter that could intrude into the movement area or block visibility for security checks and vehicle operators. If there were no obstructions within this buffer, or if the buffer were larger than necessary, it would either create a safety risk by letting objects intrude into critical zones or unnecessarily constrain space. The standard uses one meter as the practical minimum clearance that meets safety and operational needs.