An effective mechanical or automatized transportation in the building is important for occupant’s wellbeing, efficiency and productivity. The transportation systems such as elevators or lifts, escalators, moving pathways help all building users move horizontally or vertically from one place to another place in building. The means of transportation in a building change according to several factors which need to be considered when selecting any mechanical equipment used for vertical circulation in buildings, including, but not limited to the shape and size of the building, number of people, purpose of building, distribution of occupants and type of occupants e.g. children, the elderly or less able-bodied in addition to traffic behavior and occupancy loads.