Hydraulic Elevators use a cylinder and a piston to push the cab up from underneath. Traction Elevators have a motor that pulls the elevator up using cables. The Door Operator opens both doors ...

Hydraulic elevators are more likely than cable elevators to fall. ... The height of hydraulic elevators is limited to about 70 ft., so a free fall probably would result in injury--but not death.

Besides the 27 new elevators, 5 more units are being installed at the the MRT stations in North Avenue, Ortigas, Buendia, and Ayala. Installations are expected to be complete by January 2017.