Journal of Advanced Transportation / 2019 / Article / Tab 3

Research Article

Identifying the Factors Contributing to Injury Severity in Work Zone Rear-End Crashes

Table 3

Marginal effects associated with the random-parameters model.

Variable Marginal Effects
(Random-parameters model)
No injuryInjuryFatal

Young-0.17100.10850.5048
Male-0.09940.06310.2934
Curve-0.38750.24581.1438
Heavy-0.07510.04770.2218
Passenger-0.07300.04630.2155
Weekday0.2139-0.1357-0.6314
Daytime0.0466-0.0296-0.1375
Fog0.2504-0.1589-0.7393
Summer-0.08350.05300.2466
Rural-0.12180.07730.3594
Speeding-0.39040.24771.1525
No. lane closures-0.19890.12620.5873
Asphalt-0.28540.18110.8424
Milling0.1062-0.0674-0.3135

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