The Ontario Building Code | Emergency Reporting Devices
184.108.40.206. Emergency Reporting Devices
(1) Emergency reporting devices shall be located on passenger platforms and throughout a rapid transit station such that the distance of travel from any point in the public areato such a device is not more than 90 m.
(2) The emergency reporting devices required in Sentence (1) are permitted to be public telephones with an emergency no charge capability and their location shall be plainly indicated by appropriate signs.