Intersection | Midblock | Total | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Street classification | Actual Miles (%) | No (%) observed | Expected No | Ratio | No (%) observed | Expected No | Ratio | No (%) observed | Expected No | Ratio |
Note: The expected number of collisions was calculated by multiplying the percentage of actual miles of each street classification by the total number of observed collisions. For example the calculation for the expected number of intersection collisions that occurred on local streets is: 77.9% × 224 = 174.5. | ||||||||||
*Actual street classification miles data provided by Peter Corpuz, Traffic Engineer, City of Long Beach Public Works. | ||||||||||
Local | 642.6 (77.9) | 77 (34.4) | 174.5 | 0.44 | 258 (68.3) | 294.4 | 0.88 | 335 (55.6) | 469 | 0.71 |
Collector | 38.2 (4.6) | 21 (9.4) | 10.3 | 2.04 | 44 (11.6) | 17.5 | 2.51 | 65 (10.8) | 28 | 2.32 |
Minor arterial | 36.6 (4.4) | 27 (12.1) | 9.9 | 2.73 | 31 (8.2) | 16.8 | 1.85 | 58 (9.6) | 26 | 2.23 |
Major arterial | 87.3 (10.6) | 86 (38.4) | 23.7 | 3.63 | 37 (9.8) | 40.0 | 0.93 | 123 (20.4) | 64.0 | 1.92 |
Regional corridor | 20.3 (2.5) | 13 (5.8) | 5.5 | 2.36 | 8 (2.1) | 9.3 | 0.86 | 21 (3.5) | 15 | 1.40 |
Total | 825 (100) | 224 (100) | 224 | 378 (100) | 378 | 602 (100) | 602 | |||
p Value <0.0001 | p Value <0.0001 |