Emergency hammerNew Zealand
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165. Emergency hammer
An emergency hammer is a safety tool designed to break certain vehicle windows when normal doors or exits cannot be used during an emergency. It is commonly found in buses, coaches and other passenger vehicles near windows designated as emergency exits.
An emergency hammer should only be used when evacuation through the normal exits is impossible or unsafe. The tool must remain accessible and, where provided for an emergency window, should be used according to the instructions displayed in the vehicle.
Wikimedia.org • Santeri Viinamäki • CC BY-SA
What is an emergency hammer used for?
An emergency hammer is used to break a suitable vehicle window so occupants can escape when normal doors or emergency exits cannot be opened.
Where are emergency hammers normally located?
In vehicles equipped with them, emergency hammers are normally mounted in an easily accessible position close to an emergency window or other designated escape point.
Can an emergency hammer break every vehicle window?
No. Vehicle windows can use different types of glazing, and not every window is designed to be broken as an emergency exit. Occupants should use designated emergency windows and follow the instructions provided in the vehicle.

Traffic rules
New Zealand