Research Article
Research on Recognition and Evaluation of Traffic Guide Sign
Table 8
Grading of guide sign recognition.
| | Level | Comprehensive score (GQI) | Color | Evaluation |
| | A | 4.0~5.0 | Green | Very good | | B | 3.0~4.0 | Blue | Good | | C | 2.0~3.0 | Yellow | Ordinary | | D | 1.0~2.0 | Orange | Poor | | E | <1.0 | Red | Very poor |
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