Document ID: chunk:federal_register_of_legislation:F2021C00480:body:0:p10
Version: federal_register_of_legislation:F2021C00480
Segment Type: other
Provision Reference: 
Character Range: 29148–32038

be locked from the outside for the purpose of securing the vehicle when unattended shall be constructed in such a way that they can always be opened from the inside of the vehicle.
44.9.4.2.3.              If the emergency window is of a type horizontally hinged at the top edge, an appropriate device shall be provided to hold it open.  Emergency windows which open or eject shall do so towards the exterior.
44.9.4.2.4.              The height of the lower edge of an emergency window from the level of the floor immediately below it shall be not more than 1,000 mm.
44.9.4.2.5.              Each emergency window with a bottom edge between 1,000 mm and 2,000 mm above the ground shall have a means to assist the occupants in descending to the ground, such as footrests, with no more than 500 mm between successive footrests and the bottom tread not more than 1000 mm above the ground.  A footrest may be a vehicle component.
44.9.4.2.6.              Each emergency window with a bottom edge over 2,000 mm above the ground shall be equipped with self-supporting steps or equivalent to provide safe evacuation of occupants to the ground. The bottom step of the evacuation device shall not be more than 1,000 mm above the ground.
44.9.4.3.                    Escape hatches
44.9.4.3.1.              Escape hatches shall be of the sliding or erectable type.  A sliding panel shall be acceptable provided that the force required to open it does not exceed 500 N. Hinged hatches allowed if hinged on the leading edge. Every escape hatch shall operate so as not to obstruct clear access from inside and outside the vehicle.
44.9.4.3.2.              Escape hatches shall be capable of being easily opened from the inside and from the outside.  However, this requirement shall not be construed as precluding the possibility of locking the escape hatch for the purpose of securing the vehicle when unattended, provided that the escape hatch can always be opened from the inside by the use of the normal opening mechanism.
44.9.4.3.3.              Escape hatches shall be located along the longitudinal centre line of the vehicle.
44.9.5.                          Marking of Emergency Exits
44.9.5.1.                    Each emergency door (other than a 'Service Door') and each emergency window shall be conspicuously marked in a colour which contrasts with the background by an inscription reading "EMERGENCY EXIT" inside the vehicle in letters at least 25 mm high and outside the vehicle in letters at least 50 mm high.

The marking on the outside of the vehicle shall be on retroreflective material.

Each escape hatch shall be likewise marked inside the vehicle.
44.9.5.2.                    Internal signs
         Conspicuous signs indicating the location of all emergency exits shall be visible from the 'Aisle'. The signs shall:
44.9.5.2.1.              include the word "EXIT"  in letters