Research Article
Macrolevel Traffic Crash Analysis: A Spatial Econometric Model Approach
Table 5
Direct, indirect, and total effects of SDM model.
| Variables | Direct Effect | Indirect Effect | Total Effect | Coefficient | T Statistic | Coefficient | T Statistic | Coefficient | T Statistic |
| Ln_Population_Density | 0.154 | 1.951 | 0.102 | 4.387 | 0.256 | 2.544 |
| Ln_Company_ Density | -0.620 | -16.946 | -0.199 | -2.485 | -0.819 | -8.503 |
| Ln_Consumption _ Density | 0.089 | 2.297 | 0.023 | 0.252 | 0.112 | 1.102 |
| Ln_Hotel_ Density | -0.091 | -5.641 | -0.052 | -1.736 | -0.143 | -4.285 |
| Ln_Residential_density | -0.084 | -2.509 | -0.004 | -0.072 | -0.088 | -1.402 |
| Ln_Intersection _ Density | 0.070 | 2.248 | -0.079 | -1.145 | -0.009 | -0.121 |
| Ln_Road_ Density | 0.214 | 6.667 | 0.187 | 2.408 | 0.401 | 4.631 |
|
|
Note: , , and indicate significance at the 1%, 5%, and 10% levels, respectively. |