Advances in Civil Engineering / 2012 / Article / Tab 2

Research Article

Obstacle Emergence Risk and Road Patrol Policy

Table 2

Estimation results of the Poisson-Gamma model.

Poisson-Gamma model

Maximum likelihood estimate−4.82 0.113.20
( -value)(−15.51)(14.56)(17.25)(4.22)(3.99)(20.22)
Log likelihood−18,325
AIC36,663

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