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  2. Public Warning System (Singapore) - Wikipedia

    en.wikipedia.org/wiki/Public_Warning_System...

    The Public Warning System (PWS) is a network of civil defense sirens installed by the Singapore Civil Defence Force on over 2,000 strategic points in Singapore to warn Singaporeans of impending dangers, air raids and atomic bomb blasts. Thus far, the siren network has only been used for occasional public awareness drills, monthly noon chimes ...

  3. Civil defense siren - Wikipedia

    en.wikipedia.org/wiki/Civil_defense_siren

    The signal that the alarm has passed: a siren sound with a constant pitch (400 Hz) repeated twice in a row for 30 seconds, with a 30-second pause between the signals (Figure 3). The alarm past signal also applies to the cancellation of the air raid warning and the disaster alarm past signal.

  4. Signals (Singapore Army) - Wikipedia

    en.wikipedia.org/wiki/Signals_(Singapore_Army)

    Signals is the formation of the Singapore Army responsible for communications on multiple platforms and local networking on the battlefield. It also supports the Singapore Armed Forces (SAF) by developing the capacity for network-centric warfare in the form of Integrated Knowledge-based Command and Control (IKC2) and Command, Control, Communications, Computers and Intelligence (C4I) operations.

  5. List of equipment of the Singapore Army - Wikipedia

    en.wikipedia.org/wiki/List_of_equipment_of_the...

    Standard pistol of the Singapore Armed Forces. Being replaced by the P30. [27] Heckler & Koch P30. 9×19mm Parabellum. Germany. Heckler & Koch P30L Variant. Used by Army Deployment Force & Military Police formation to replace their legacy P226. Being phased in to replace the P226 for the rest of the Army.

  6. Variations in traffic light operation - Wikipedia

    en.wikipedia.org/wiki/Variations_in_traffic...

    Transit signals may be accompanied by red and yellow B/T signals indicating to buses and trams stop and caution respectively. [31] Along the northern half of Hong Kong Island, there is a similar "T" lamp in yellow for double-decker trams. Singapore uses a similar "B" light for buses, but it is green.

  7. Hospital emergency codes - Wikipedia

    en.wikipedia.org/wiki/Hospital_emergency_codes

    Hospital emergency codes are coded messages often announced over a public address system of a hospital to alert staff to various classes of on-site emergencies. The use of codes is intended to convey essential information quickly and with minimal misunderstanding to staff while preventing stress and panic among visitors to the hospital.

  8. Mass Rapid Transit (Singapore) - Wikipedia

    en.wikipedia.org/wiki/Mass_Rapid_Transit_(Singapore)

    Top speed. 78–100 km/h (48–62 mph) (service) 90–100 km/h (56–62 mph) (design) MRT network map. The Mass Rapid Transit system, locally known by the initialism MRT, is a rapid transit system in Singapore and the island country's principal mode of railway transportation. The system commenced operations in November 1987 after two decades of ...

  9. International Code of Signals - Wikipedia

    en.wikipedia.org/wiki/International_Code_of_Signals

    The International Code of Signals (INTERCO) is an international system of signals and codes for use by vessels to communicate important messages regarding safety of navigation and related matters. Signals can be sent by flaghoist, signal lamp ("blinker"), flag semaphore, radiotelegraphy, and radiotelephony. The International Code is the most ...