Research Article
Proposing New Methods to Estimate the Safety Level in Different Parts of Freeway Interchanges
| | Rule number | Variables | Function | | SΔV−1 | SKE−1 | NTTC−1 | NDRAC−1 | NCPI |
| | 1 | Low | Low | Low | Low | Very low | | 2 | Low | Low | Low | Medium | Very low | | 3 | Low | Low | Low | High | Low | | 4 | Low | Low | Medium | Low | Very low | | 5 | Low | Low | Medium | Medium | Low | | 6 | Low | Low | Medium | High | Medium | | 7 | Low | Low | High | Low | Low | | 8 | Low | Low | High | Medium | Medium | | 9 | Low | Low | High | High | High | | 10 | Low | Medium | Low | Low | Very low | | 11 | Low | Medium | Low | Medium | Low | | 12 | Low | Medium | Low | High | Medium | | 13 | Low | Medium | Medium | Low | Low | | 14 | Low | Medium | Medium | Medium | Medium | | 15 | Low | Medium | Medium | High | Medium | | 16 | Low | Medium | High | Low | Medium | | 17 | Low | Medium | High | Medium | Medium | | 18 | Low | Medium | High | High | High | | 19 | Low | High | Low | Low | Low | | 20 | Low | High | Low | Medium | Medium | | 21 | Low | High | Low | High | Medium | | 22 | Low | High | Medium | Low | Medium | | 23 | Low | High | Medium | Medium | Medium | | 24 | Low | High | Medium | High | High | | 25 | Low | High | High | Low | Medium | | 26 | Low | High | High | Medium | High | | 27 | Low | High | High | High | Very high | | 28 | Medium | Low | Low | Low | Very low | | 29 | Medium | Low | Low | Medium | Low | | 30 | Medium | Low | Low | High | Low | | 31 | Medium | Low | Medium | Low | Low | | 32 | Medium | Low | Medium | Medium | Low | | 33 | Medium | Low | Medium | High | Medium | | 34 | Medium | Low | High | Low | Low | | 35 | Medium | Low | High | Medium | Medium | | 36 | Medium | Low | High | High | High | | 37 | Medium | Medium | Low | Low | Low | | 38 | Medium | Medium | Low | Medium | Low | | 39 | Medium | Medium | Low | High | Medium | | 40 | Medium | Medium | Medium | Low | Low | | 41 | Medium | Medium | Medium | Medium | Medium | | 42 | Medium | Medium | Medium | High | High | | 43 | Medium | Medium | High | Low | Medium | | 44 | Medium | Medium | High | Medium | High | | 45 | Medium | Medium | High | High | Very high | | 46 | Medium | High | Low | Low | Low | | 47 | Medium | High | Low | Medium | Medium | | 48 | Medium | High | Low | High | High | | 49 | Medium | High | Medium | Low | Medium | | 50 | Medium | High | Medium | Medium | High | | 51 | Medium | High | Medium | High | High | | 52 | Medium | High | High | Low | High | | 53 | Medium | High | High | Medium | High | | 54 | Medium | High | High | High | Very high | | 55 | High | Low | Low | Low | Very low | | 56 | High | Low | Low | Medium | Low | | 57 | High | Low | Low | High | Medium | | 58 | High | Low | Medium | Low | Low | | 59 | High | Low | Medium | Medium | Medium | | 60 | High | Low | Medium | High | High | | 61 | High | Low | High | Low | Medium | | 62 | High | Low | High | Medium | High | | 63 | High | Low | High | High | High | | 64 | High | Medium | Low | Low | Low | | 65 | High | Medium | Low | Medium | Medium | | 66 | High | Medium | Low | High | Medium | | 67 | High | Medium | Medium | Low | Medium | | 68 | High | Medium | Medium | Medium | Medium | | 69 | High | Medium | Medium | High | High | | 70 | High | Medium | High | Low | Medium | | 71 | High | Medium | High | Medium | High | | 72 | High | Medium | High | High | Very high | | 73 | High | High | Low | Low | Medium | | 74 | High | High | Low | Medium | Medium | | 75 | High | High | Low | High | High | | 76 | High | High | Medium | Low | Medium | | 77 | High | High | Medium | Medium | High | | 78 | High | High | Medium | High | Very high | | 79 | High | High | High | Low | High | | 80 | High | High | High | Medium | Very high | | 81 | High | High | High | High | Very high |
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