研究文章
Random-Parameter多元负二项回归建模的影响因素在事故频率崩溃类型
|
| 变量1 |
不。2 |
在尾端的估计(t统计) |
Bumping-guardrail估计(t统计) |
其他的估计(t统计) |
Noncasualty估计(t统计) |
伤亡估计(t统计) |
|
| 常数 |
5 |
0.177 (1.41) |
0.515 (3.27) |
−0.228 (−1.02) |
0.426 (4.48) |
−0.0568 (−0.16) |
|
| 交通特征 |
| 交换 |
2 |
- - - - - -3 |
- - - - - - |
−0.314 (−2.48) |
- - - - - - |
−0.552 (−2.46) |
| 黑色的斑点 |
5 |
1.020 (16.68) |
0.859 (10.40) |
1.004 (7.92) |
1.050 (22.56) |
1.230 (5.18) |
| AADT |
4 |
0.0000236 (10.04) |
0.00000909 (3.03) |
0.0000114 (2.62) |
0.0000282 (15.83) |
- - - - - - |
|
| 速度特性 |
|
|
4 |
−0.0134 (−5.96) |
−0.00807 (−2.81) |
−0.00999 (−2.21) |
−0.0155 (−9.21) |
- - - - - - |
|
|
4 |
0.0119 (5.27) |
0.00829 (2.85) |
- - - - - - |
0.0113 (6.76) |
0.0235 (2.48) |
|
|
2 |
0.0209 (4.86) |
- - - - - - |
- - - - - - |
0.0228 (6.93) |
- - - - - - |
|
|
4 |
−0.0196 (−6.81) |
−0.00939 (−2.54) |
−0.0142 (−2.62) |
−0.202 (−9.33) |
- - - - - - |
|
| 几何特征 |
|
|
2 |
0.000000154 (2.54) |
- - - - - - |
- - - - - - |
0.000000110 (2.45) |
- - - - - - |
|
|
1 |
- - - - - - |
- - - - - - |
- - - - - - |
- - - - - - |
0.000239 (2.13) |
|
|
2 |
0.00000041 (6.12) |
- - - - - - |
- - - - - - |
0.000000336 (6.75) |
- - - - - - |
|
|
5 |
0.000567 (15.62) |
0.000460 (9.02) |
0.000606 (8.71) |
0.000595 (21.66) |
0.000735 (6.54) |
|
|
1 |
- - - - - - |
- - - - - - |
- - - - - - |
0.000000093 (2.08) |
- - - - - - |
|
|
1 |
- - - - - - |
−0.000131 (−2.71) |
- - - - - - |
- - - - - - |
- - - - - - |
|
|
3 |
−0.000348 (−3.67) |
- - - - - - |
−0.000545 (−3.07) |
−0.000423 (−2.83) |
- - - - - - |
|
| 视觉特征 |
|
|
5 |
−0.00644 (−4.78) |
−0.00641 (−3.35) |
−0.0106 (−3.51) |
−0.00696 (−6.65) |
−0.0137 (−2.61) |
|
|
3 |
−0.104 (−3.93) |
−0.106 (−3.06) |
- - - - - - |
−0.107 (−5.39) |
- - - - - - |
|
|
总数量的参数:53个;对数似:−16194.117;AIC: 32662.229;BIC: 33203.686;
:41460.088。
|
