Margin of Safety

Margin of Safety reference article on thruhikingwiki.com.

Overview

The margin of safety refers to the buffer of time, energy, resources, and environmental awareness that hikers maintain to avoid unnecessary risk. It reflects conservative decision-making and contingency planning.

Key points

  • Accounts for weather changes, fatigue, or navigational errors.
  • Supports risk management during complex terrain or long days.
  • Includes extra food, water, daylight, and emergency supplies.
  • Influenced by individual experience and comfort levels.
  • Helps prevent routine challenges from escalating into emergencies.

Details

Maintaining a margin of safety involves anticipating uncertainties and choosing options that leave room for error. This may include turning back early, carrying extra layers, or ending the day before conditions deteriorate. The concept is widely used in mountaineering, long-distance backpacking, and off-trail navigation.

A well-maintained safety margin reduces exposure to hazards, such as storms, cold temperatures, or fatigue-related mistakes. It plays a crucial role in responsible backcountry travel.

Illustrative hiking footage

The following external videos offer general visual context for typical hiking environments. They are not official route recommendations, safety instructions, or planning tools.