Table 5 The thresholds of ranking stations
Station weight value | Index | Proposed action |
|---|---|---|
8< swv ≤10 | Good condition | Long term/inspection in 2 years |
6< swv ≤8 | Acceptable condition | Medium term/inspection in 1 year |
3< swv ≤6 | Poor condition | Short term/inspection in 6 months |
0< swv ≤3 | Critical condition | Immediate/quick action |