Research Article
Optimization Model of Network-Level Pavement Maintenance Decision considering User Travel Time and Vehicle Fuel Consumption Costs
Table 2
Condition combinations of the expressway asphalt pavement performance.
| Combination | PCI | RQI | SRI | PSSI |
| 1 | Good | Good | Sufficient | Sufficient | 2 | Fair | Good | Sufficient | Sufficient | 3 | Poor | Good | Sufficient | Sufficient | 4 | Good | Fair | Sufficient | Sufficient | 5 | Fair | Fair | Sufficient | Sufficient | 6 | Poor | Fair | Sufficient | Sufficient | 7 | Good | Poor | Sufficient | Sufficient | 8 | Fair | Poor | Sufficient | Sufficient | 9 | Poor | Poor | Sufficient | Sufficient | 10 | | | Insufficient | Sufficient | 11 | | | | Insufficient |
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