Research Article
Developing a Low-Cost Safety Improvement Program for Intersections in an Urban Roadway Network: A Case Study
Table 3
Applied CMF analysis at an intersection.
| Applied crash countermeasure | Total crashes | FI crashes | Total crash reduction | FI crash reduction | Total cost ($) | Total benefit ($) | BCR |
| Rumble strips | 13.68 | 5.04 | 5.32 | 1.96 | 690 | 519,631 | 709.93 | Roundabout (total) | 12.35 | 4.55 | 6.65 | 2.45 | 1.5 million | 649.5 k | 0.40 | Stop sign ahead | 16.15 | 5.95 | 2.85 | 1.05 | 350 | 278.3 k | 749.77 | Flashing red stop signs (target) | 16.53 | 6.09 | 2.47 | 0.91 | 6,800 | 241.2 k | 33.44 | Flashing overhead signal (target) | 16.53 | 6.09 | 2.47 | 0.91 | 15,000 | 241.2 k | 15.16 | Double ctr. line and stop bars (cons.) | 11.4 | 4.2 | 7.6 | 2.8 | 1,250 | 742.3 k | 559.83 | Double ctr. line and stop bars (avg.) | 8.99 | 3.31 | 10.01 | 3.68 | 1,250 | 978 k | 737.57 |
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