sentences:  Surface vehicles and Toronto Rocket trains also have visual LED stop displays.In 2015, the TTC tested the new External Route Announcement (ERA) system for buses (similar to the system already in place since 2014 on the Commission's Flexity streetcars), that indicates the route, direction and destination as a pre-boarding announcement.The announcements are made through a speaker located on the outside of the vehicle, when the doors are opened.