Which term is defined as the portion of exit access that must be traversed before two separate and distinct paths of travel to two exits are available?

• A. Fire Compartment
• B. Smoke Compartment
• C. Common Path of Travel
• D. Mall Building

Answer: (C)

Common path of travel is the portion of exit access that must be traversed before two separate and distinct paths of travel to two exits are available. This shared stretch exists wherever a space leads to a branching point where you can choose between two exits. It matters because NFPA 101 uses this segment when calculating required egress distances and determining how much space occupants must pass through before they can reach an alternate exit. The distance up to the branching point is included in travel-distance calculations, so a longer common path means occupants must cover more ground before they can split to two exits. If there isn’t a point where two exits become available, this concept doesn’t apply. The other terms describe fire or smoke barriers or building types and are not the egress concept described here.