Is there any situation where travel distance is not measured using right angles and travel parallel/orthogonal to walls? Also, how close must travel distance be measured from adjacent walls?
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8 Comments
Wayne Ammons
12/19/2018 09:12:25 am
Is the travel distance for the purpose of developing life safety egress plans, fire hose coverage, or something else?
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JOE MEYER
12/19/2018 09:20:10 am
This question came in as travel distance for the development of life safety plans (means of egress).
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Wayne Ammons
12/19/2018 10:16:38 am
NFPA 101 gives guidance on measuring travel distance for means of egress:
Marc Vieno
12/19/2018 12:21:05 pm
Let me answer from the perspective of a commercial plans examiner that reviewed to the 2012 IBC.
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Francis
12/19/2018 02:24:27 pm
One typical example of measuring travel distance (TD) in a diagonal approach is in a mall structure. Since mall concourse/corridor is wide and normally open for occupants to stroll, angular measurement of TD is possible. Also on a driveway of a parking area it is typical to do a TD diagonally and very much acceptable with the authorities having jurisdiction (AHJ).
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1/27/2020 09:45:18 am
I'm working on an exercise studio with one big open room and dealing with a plan examiner who insists travel distance is measured along walls leading to an exit, rather than diagonally across the space. To me this is absurd. Thoughts?
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Rick Savela
7/21/2020 01:24:43 pm
You probably have the answer by now. It's about life safety, you should always measure the maximum possible path. Occupants may be using the wall to find their way in a dark or smoke filled building.
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K Tisaab
8/26/2021 04:07:14 pm
Hello,
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