Research Article
Crash Frequency Minimization with Severity Mitigation in Road Geometric Design Using Chance Constraint Programming Optimization
Table 13
Expected annual crash frequency for 3:30–5:30 pm with different
and
.
| | Reliability level | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 | 1 |
| −3.0 to −1.0 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | −0.9 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | −0.8 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | −0.7 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | −0.6 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | −0.5 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | −0.4 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | −0.3 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | 0.0867 | −0.2 | 0.09259 | 0.09259 | 0.09259 | 0.09259 | 0.09259 | 0.09259 | −0.1 | 0.09259 | 0.09259 | 0.09259 | 0.09259 | 0.09259 | 0.09259 | 0 | 0.09259 | 0.09259 | 0.09259 | 0.09259 | 0.09259 | 0.09259 | 0.1 | 0.09259 | 0.09259 | 0.09259 | 0.09259 | 0.09259 | 0.09259 | 0.2 | 0.09259 | 0.09259 | 0.09259 | 0.09259 | 0.09259 | 0.12546 | 0.3 | 0.09259 | 0.09259 | 0.09259 | 0.09259 | 0.09259 | 0.12546 | 0.4 | 0.09259 | 0.09259 | 0.09259 | 0.09259 | 0.09923 | 0.15833 | 0.5 | 0.09259 | 0.09259 | 0.09259 | 0.09259 | 0.09923 | 0.18976 | 0.6 | 0.09259 | 0.09259 | 0.09259 | 0.09259 | 0.09923 | 0.18976 | 0.7 | 0.09259 | 0.09259 | 0.09259 | 0.0986 | 0.10608 | 0.18976 | 0.8 | 0.09259 | 0.09259 | 0.09259 | 0.0986 | 0.10608 | 0.18976 | 0.9 | 0.09259 | 0.09259 | 0.09259 | 0.0986 | 0.10608 | 0.18976 | 1.0 | 0.09259 | 0.09259 | 0.09259 | 0.0986 | 0.10608 | 0.18976 | 1.1 | 0.18019 | 0.20293 | 0.22782 | 0.25078 | 0.27567 | 0.29587 | 1.2 | 0.18019 | 0.20293 | 0.22782 | 0.25078 | 0.27567 | 0.29587 | 1.3 | 0.18508 | 0.20864 | 0.2322 | 0.25648 | 0.28005 | 0.30361 | 1.4 | 0.18508 | 0.20864 | 0.2322 | 0.25648 | 0.28005 | 0.30361 | 1.5 | 0.18508 | 0.20864 | 0.2322 | 0.25648 | 0.28005 | 0.30361 | 1.6 | 0.18508 | 0.20864 | 0.2322 | 0.25648 | 0.28005 | 0.30361 | 1.7 | 0.18508 | 0.20864 | 0.2322 | 0.25648 | 0.28005 | 0.30361 | 1.8 | 0.18508 | 0.20864 | 0.2322 | 0.25648 | 0.28005 | 0.30361 | 1.9 | 0.18508 | 0.2141 | 0.23528 | 0.26316 | 0.29785 | 0.38713 | 2.0 | 0.18508 | 0.22457 | Infeasible | Infeasible | Infeasible | Infeasible | 2.1 | 0.19664 | 0.23295 | Infeasible | Infeasible | Infeasible | Infeasible | 2.2 | 0.19664 | 0.23295 | Infeasible | Infeasible | Infeasible | Infeasible | 2.3 | 0.19664 | 0.23295 | Infeasible | Infeasible | Infeasible | Infeasible | 2.4 | Infeasible | Infeasible | Infeasible | Infeasible | Infeasible | Infeasible | 2.5 to 3.0 | Infeasible | Infeasible | Infeasible | Infeasible | Infeasible | Infeasible |
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