Portland Orange
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| Portland Orange (desaturated approximation) | |
|---|---|
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| About these coordinates Color coordinates | |
| Hex triplet | #FF5A36 |
| sRGBB (r, g, b) | (Script error: No such module "Color".) |
| HSV (h, s, v) | (Script error: No such module "Color".) |
| CIELChuv (L, C, h) | (Script error: No such module "Color".) |
| Source | CIECD |
| ISCC–NBS descriptor | Vivid reddish orange |
| B: Normalized to [0–255] (byte) | |
Portland Orange is the color of light emitted by the Page Template:Smallcaps/styles.css has no content.dont walk phase of pedestrian crossing signals in the United States and Canada. The color was chosen to avoid confusion with regular traffic lights in conditions of poor visibility.[1]
Its chromaticity is specified by the Institute of Transportation Engineers in that body's technical standards,[2] along with lunar white for the Page Template:Smallcaps/styles.css has no content.walk lights.[3][4] Its application is stipulated in the U.S. federal Manual on Uniform Traffic Control Devices.[5] Various jurisdictional standards also require Portland Orange for Page Template:Smallcaps/styles.css has no content.dont walk signs.[6]
The color can be created with some LEDs,[7][8] and the ITE specifies the precision of its wavelength to 3 nanometers.[2] In practice, the most brilliant color of gaseous tubing is similar to Portland Orange.[9]
International application
Portland Orange is generally not used outside the United States and Canada. In most of the world, red, or another specified color, is used for the Page Template:Smallcaps/styles.css has no content.dont walk symbol instead of Portland Orange.[4]
References
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- ^ Page Module:Citation/CS1/styles.css has no content."The APWA Reporter". 39–40. American Public Works Association. 1972: 13 – via Google Books.
{{cite journal}}: Cite journal requires|journal=(help) - ^ a b Page Module:Citation/CS1/styles.css has no content.Joint Industry and Traffic Engineering Council Committee (March 19, 2004). "Pedestrian Traffic Control Signal Indications - Part 2: Light Emitting Diode (LED) Pedestrian Traffic Signal Modules" (PDF). Institute of Transportation Engineers. p. 5. Archived from the original (PDF) on December 12, 2007.
- ^ Page Module:Citation/CS1/styles.css has no content."High Brightness Light Emitting Diodes". Semiconductors and Semimetals. 48. Academic Press: 297. February 9, 1998. ISBN 9780080864457 – via Google Books.
- ^ a b Page Module:Citation/CS1/styles.css has no content.Lee, Jiun-Haw; Liu, David N.; Wu, Shin-Tson (November 20, 2008). "Introduction to Flat Panel Displays". Wiley Series in Display Technology. 20. John Wiley & Sons: 169. ISBN 9780470721940 – via Google Books.
- ^ Page Module:Citation/CS1/styles.css has no content."Manual on Uniform Traffic Control Devices: 2009 Edition Chapter 4E. Pedestrian Control Features". United States Department of Transportation - Federal Highway Administration. Retrieved July 18, 2017.
- ^ Page Module:Citation/CS1/styles.css has no content."1300 Installation of Street Lighting Equipment and Traffic Control Devices" (PDF). cincinnati-oh.gov. City of Cincinnati. Archived from the original (PDF) on October 27, 2007.
- ^ Page Module:Citation/CS1/styles.css has no content."Orange". Research Results Digets (192, 194, 197–211, 213–214, 221). Transportation Research Board, National Research Council: 95. 1996 – via Google Books.
- ^ Page Module:Citation/CS1/styles.css has no content.FHWA Traffic Safety Research Program (1997). Visibility and Comprehension of Pedestrian Traffic Signals (Report). Federal Highway Administration. p. 12 – via Google Books.
- ^ Page Module:Citation/CS1/styles.css has no content."Pedestrian Lights". Proceedings of the Annual Meeting of the Institute of Traffic Engineers. 29–34. Institute of Traffic Engineers: 134. 1959 – via Google Books.
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