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 1531, September 27, 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. |
