Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1016 - EXIT ACCESS TRAVEL DISTANCE › Subsection 1016.1 - Travel distance limitations

Current through Register 1525, July 5, 2024
Exits
shall be so located on each
story
such that the maximum length of
exit
access
travel, measured from the most remote point within a
story
along the natural and unobstructed path of egress travel
				  to an
exterior exit
door at the
level of exit
				  discharge
, an entrance to a vertical
exit enclosure
,
				  an
exit passageway
, a
horizontal exit
, an
exterior
exit
stairway
or an
				  exterior
exit
ramp
, shall not exceed the
				  distances given in Table 1016.1.
Exceptions:
1. Travel distance in
open parking
				garages
is permitted to be measured to the closest riser of open
exit
stairways
.
2. In outdoor facilities with open
exit
access
components and open
exterior
exit
stairways
or
exit
ramps
, travel distance is permitted to
				be measured to the closest riser of an
exit
stairway
or the closest slope of the
exit
ramp
.
3. In other
				than occupancy Groups H and I, the
exit
access
travel distance to a maximum of 50 percent of the
exits
is permitted to be measured from the most remote point
				within a building to an
exit
using unenclosed
exit
access
stairways
or
ramps
when connecting a maximum of two stories. The two
				connected stories shall be provided with at least two
means of
				egress
. Such interconnected stories shall not be open to other
				stories.
4. In other than occupancy
				Groups H and I,
exit
access
travel distance
				is permitted to be measured from the most remote point within a building to an
exit
using unenclosed
exit
access
stairways
or
ramps
in
				the first and second stories above
grade plane
in buildings
				equipped throughout with an
automatic sprinkler system
in
				accordance with Section 903.3.1.1. The first and second stories above
grade plane
shall be provided with at least two
means
				of egress
. Such interconnected stories shall not be open to other
				stories.
Where applicable, travel distance on unenclosed
exit
access
stairways
or
ramps
and on connecting stories shall also be included in the
				  travel distance measurement. The measurement along
stairways
shall be made on a plane parallel and tangent to the
stair
tread
nosings
in the center of the
stairway
.
TABLE 1016.1 EXIT ACCESS TRAVEL
				  DISTANCEa
OCCUPANCY
WITHOUT SPRINKLER SYSTEM
(feet)
WITH SPRINKLER SYSTEM
(feet)
A, E, F-1, M, R, S-1
200
250b
I-1
Not Permitted
250c
B
200
300c
F-2, S-2, U
300
400c
H-1
Not Permitted
75c
H-2
Not Permitted
100c
H-3
Not Permitted
150c
H-4
Not Permitted
175c
H-5
Not Permitted
200c
I-2, I-3, I-4
Not Permitted
200c
For SI: 1 foot = 304.8 mm.
a. See the
							 following sections for modifications to exit access travel distance
							 requirements:
Section 402.4: For the distance limitation in malls.
Section 404.9: For the distance limitation through an atrium
							 space.
Section 407.4: For the distance limitation in Group I-2.
Sections 408.6.1 and 408.8.1: For the distance limitations in
							 Group I-3.
Section 411.4: For the distance limitation in special
							 amusement buildings.
Section 1014.2.2: For the distance limitation
							 in Group I-2 hospital suites.
Section 1015.4: For the distance
							 limitation in refrigeration machinery rooms.
Section 1015.5: For
							 the distance limitation in refrigerated rooms and spaces.
Section
							 1021.2: For buildings with one exit.
Section 1028.7: For increased
							 limitation in assembly seating.
Section 1028.7: For increased
							 limitation for assembly open-air seating.
Section 3103.4: For
							 temporary structures.
Section 3104.9: For pedestrian walkways.
b. Buildings equipped throughout with an automatic sprinkler
							 system in accordance with Section 903.3.1.1 or 903.3.1.2. See Section 903 for
							 occupancies where automatic sprinkler systems are permitted in accordance with
							 Section 903.3.1.2.
c. Buildings equipped throughout with an
							 automatic sprinkler system in accordance with Section 903.3.1.1.