Skip to main content
. Author manuscript; available in PMC: 2018 Nov 1.
Published in final edited form as: Accid Anal Prev. 2017 Sep 4;108:139–146. doi: 10.1016/j.aap.2017.08.007

Table 2.

Estimation of τ in simulation for the subject-specific intensity model. m is the number of drivers, and τ is the change-point.

No. of
change-
points		 m τ Average
of
estimates		 RMSE |Bias (%)| Coverage
probability
(%)
1 40 60 68.0 19.8 13.3 89.7
80 60 65.2 14.9 8.7 93.1
120 60 65.1 14.7 8.5 94.6
40 75 79.1 19.6 5.5 87.0
80 75 76.4 13.6 1.9 90.4
120 75 76.4 13.6 1.9 93.0
40 90 90.8 19.9 0.9 85.6
80 90 87.6 13.2 2.7 86.2
120 90 88.8 12.9 1.3 88.5
2 40 τ1 = 50 53.4 7.2 6.8 83.7
τ2 = 120 114.2 10.4 4.8 87.7
80 τ1 = 50 50.5 5.6 7.0 89.6
τ2 = 120 115.3 8.2 3.9 89.4