![luminator destination sign manual luminator destination sign manual](https://i.ebayimg.com/thumbs/images/g/2o0AAOSw-s5drbCo/s-l200.jpg)
These rollsigns were usually made of linen until Mylar (a type of PET film) became the most common material used for them, in the 1960s/70s. This sign has a hand crank to change the destinations displayed, but many rollsigns are motorized.įor many decades, the most common type of multiple-option destination sign was the rollsign (or bus blind, curtain sign, destination blind, or tram scroll): a roll of flexible material with pre-printed route number/letter and destinations (or route name), which is turned by the vehicle operator at the end of the route when reversing direction, either by a hand crank or by holding a switch if the sign mechanism is motorized. Rollsign Ī rollsign on the MBTA Red Line in Boston. In the 2010s, LED signs have replaced flip-dot signs as the most common type of destination sign in new buses and rail transit vehicles. In the US, the Americans with Disabilities Act of 1990 specifies certain design criteria for transit-vehicle destination signs, such as maximum and minimum character height-to-width ratio and contrast level, to ensure the signs are sufficiently readable to visually impaired persons.
![luminator destination sign manual luminator destination sign manual](http://jazzgreat554.weebly.com/uploads/1/2/3/9/123924770/233488090.jpg)
All of these can still be found in use today, but most transit-vehicle destination signs now in use in North America and Europe are electronic signs. Several different types of technology have been used for destination signs, from simple rigid placards held in place by a frame or clips, to rollsigns, to various types of computerized, electronically controlled signs, such as flip-dot, LCD or LED displays.