2022. Line 2 Line 2 fleet runs eighteen heavy rail four-car trains with lightweight stainless car bodies and alternating current traction motors. They have a top speed of and usually take around forty minutes to journey from one end of the line to the other. Each train measures wide and long allowing a capacity of 1,628 passengers: 232 seated and 1,396 standing. Twenty sliding doors per side facilitate quick entry and exit. The line's trains also feature air conditioning, driverless automatic train operation from the Operations Control Center (OCC) in Santolan, low-noise control, enabled electric and hydraulic braking, and closed-circuit television inside the trains. Special open spaces and seats are designated for wheelchair users and elderly passengers, and automatic next station announcements are made for the convenience of passengers, especially for the blind. An additional fourteen four-car trains for the east extension and the future west extension are currently in the process of being procured. Signalling The system has used various signalling systems throughout its history. The original signalling system used in the LRT Line 1 was based on fixed block and relay type trackside systems. Trains had an automatic train stop system that activates if the train passes by a red signal or over-speeding. In 2007, as part of a capacity expansion project, the signalling system was replaced with a signalling and train control system based on automatic train protection and automatic train supervision using Siemens technology. In 2022, as part of the line's south extension, the existing signalling system used in Line 1 was replaced by the Atlas 100 solution of Alstom, which is based on ETCS Level 1. On the other hand, Line 2 uses the automatic train control system, which has three subsystems: automatic train protection (ATP), automatic train operation (ATO), and automatic train supervision (ATS). The ATO subsystem automatically drives the trains, while the opening and closing of doors is controlled by an onboard train attendant. It is a track circuit-based system with equipment supplied by Westinghouse Signals (later Siemens Mobility). Safety and security The system has always presented itself as a safe system to travel on, and despite some incidents a World Bank paper prepared by Halcrow deemed the running of metro rail transit operations overall as "good". Safety notices in both English and Tagalog are a common sight at the stations and inside the trains. Security guards with megaphones can be seen at