Research Article
Using the Information Quantity Method to Assess the Regional Risk of Highway Slope to Improve the Level of Risk Management
Table 4
Proportion of the area of hazardous zoning and the distribution of file slopes.
| | | Basically risk-free area | Mild-risk area | Moderate-risk area | High-risk area | Extremely high-risk area | Total |
| | Area (km2) | 52.36 | 24.44 | 14.19 | 11.06 | 6.26 | 108.31 | | Area proportion (%) | 48.35 | 22.57 | 13.10 | 10.21 | 5.78 | 100 | | Slope level 1 (number/proportion) | 220/99.1% | — | — | 1/0.45% | 1/0.45% | 222/100% | | Slope level 2 (number/proportion) | 283/49.13% | 164/28.47% | 4/0.70% | 72/12.5% | 53/9.20% | 576/100% | | Slope level 3 (number/proportion) | — | 1/1.92% | — | 2/3.85% | 49/94.23% | 52/100% |
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