Reqired Numbersof Elevator Per Floor Per Occupant

Lobby indicators designate which car to use which is programmed by the time of arrival.

Reqired numbersof elevator per floor per occupant.

The occupant evacuation elevator lobby floor area also shall accommodate one wheelchair space of 30 inches by 48 inches. The occupant evacuation elevator lobby floor area shall accommodate at 3 square feet 0 28 m 2 per person not less than 25 percent of the occupant load of the floor area served by the lobby. A four story office building has 3500 square feet on the first floor and 2500 square feet on each of the other floors. Destination oriented elevators group passengers for the same destination to reduce wait and travel times.

An elevator is not required because each floor has less than 3000 square feet. The occupant evacuation elevator lobby shall accommodate 3 square feet per person not less than 25 percent of the occupant load of the floor area served by the lobby. A four story building has 2900 square feet per floor. If you are designing such a building i would call the building official to confirm this is the jurisdictions interpretation before you apply for a permit.

Figuring the number of people can be a tricky business firstly one has to calculate the total population in a building which could be unknown if it s a speculative project secondly not all the people would want to go to the same floors at the same time. An elevator is required. The 5th floor is 4 stories above the level of exit discharge since the 1st floor is on the level of the exit discharge so a 4 story building would not require an elevator per chapter 10. One needs to know the number of people the elevators are to be planned for.

Each occupant evacuation elevator lobby shall have minimum floor area as follows. Population to be served. This type of elevator reduces the number of stops per trip.