Research Article

An Improved Deep Learning Model for Traffic Crash Prediction

Table 6

Results of roadway segment crash count prediction.

Major injuryMinor injuryNo injuryTotal

Observation mean0.0960.5561.3061.986
Proposed model
 Estimated mean0.1100.5731.3352.019
 MAE0.0300.0800.0710.150
 RMSD (%)17.29829.96127.20643.652
Deep learning model without the regression layer
 Estimated mean0.1010.5561.3321.989
 MAE0.0430.2020.4050.520
 RMSD (%)20.62051.74165.08682.862
SVM model
 Estimated mean0.1010.5131.3291.943
 MAE0.0550.2570.4710.660
 RMSD (%)26.02261.35072.41696.636