Abstract
Traffic information boards have a vital role in promoting safe and efficient road traffic, by providing the drivers with relevant traffic information on a real-time basis. To achieve good visibility and eye-catching quality, we must know the optimum number of display colors and their chromaticity regions so that the road users can correctly recognize displayed information in a short time. We attempted to determine an optimum number of display colors based on the categorical color (basic perceived color) technique, as well as to define the chromaticity regions for display colors so that a given color is most effectively discriminated from the others. The results showed that the optimum number of display colors is ten, and categorization of the so-defined ten display colors on the chromaticity diagram is extremely useful in designing a traffic information board.
| Original language | English |
|---|---|
| Pages (from-to) | 1227-1234 |
| Number of pages | 8 |
| Journal | IEEJ Transactions on Fundamentals and Materials |
| Volume | 123 |
| Issue number | 12 |
| DOIs | |
| State | Published - 2003 |
Keywords
- categorical color
- chromaticity diagram
- display colors
- light emitting diode
- road view environment
- traffic information board
ASJC Scopus subject areas
- Electrical and Electronic Engineering