Table 1 Representative RQI and IRI values of each performance state (Gao and Zhang 2013)
From: Developing a weighted reward criterion for the Markov-based decision of road maintenance
Performance state | Range of RQI | Representative RQI value | Representative IRI value (m/km) |
|---|---|---|---|
s 1 | 4 ≤ RQI ≤ 5 | 4.5 | 0.683 |
s 2 | 3 ≤ RQI < 4 | 3.5 | 1.784 |
s 3 | 2 ≤ RQI < 3 | 2.5 | 3.405 |
s 4 | 1 ≤ RQI < 2 | 1.5 | 5.544 |
s 5 | 0 ≤ RQI < 1 | 0.5 | 8.202 |