Signs For Communication And Safety In Transportation

P. R. Grosvenor

doi:10.1117/12.934577

30 August 1983 Signs For Communication And Safety In Transportation

P. R. Grosvenor

Proceedings Volume 0374, Fibre Optics '83; (1983) https://doi.org/10.1117/12.934577
Event: Sira/Fibre Optics '83, 1983, London, United Kingdom

Abstract

1.0 CURRENT FIBRE OPTIC EQUIPMENT 1.1 Motorway signs - communicating to the motorist Fibre optic technology has been used in motorway changeable message signs since the early 1970s. Although non fibre optic units of the bulb matrix type are also used, fibre optic signs have some considerable advantages, namely: a) The ability to project colour legends and if required multi-colour per legend b) Power consumption is only about half of the equivalent bulb matrix types, typically 70 watts c) Due to the use of tungsten halogen lamps the output is of a much whiter light d) Maintenance is considerably reduced as only one lamp per legend is used and this can easily be replaced via an access panel at the side of the sign case e) Lamp failure detection and stand-by legends f) Legends can be reprogrammed at the factory

Citation Download Citation

P. R. Grosvenor "Signs For Communication And Safety In Transportation", Proc. SPIE 0374, Fibre Optics '83, (30 August 1983); https://doi.org/10.1117/12.934577

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available