Egress Travel Distance, Common Path, and Dead-End Check (IBC Chapter 10)
The three distances a plans examiner checks against the floor plan: the exit-access travel distance to the nearest exit (Table 1017.2), the common path of egress travel before two independent paths are available (1006.2.1), and the longest dead-end corridor (1020.5). Each has its own editable limit that depends on the occupancy and whether the building is sprinklered; a single fail (e.g. travel over the limit) fails the floor, and a sprinkler system often clears it at once. A design aid, not a code-official determination.
Formula and source
pass_travel = travel_ft <= travel_limit_ft; pass_common = common_path_ft <= common_path_limit_ft; pass_deadend = dead_end_ft <= dead_end_limit_ft; pass = all three; margin = limit - measured for each.
IBC 2021 §1017 / Table 1017.2 (maximum exit-access travel distance), §1006.2.1 / Table 1006.2.1 (common path of egress travel), and §1020.5 (dead-end corridor), by name.
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