A Design Method for the Roadside Clear Zone Based on Accident Simulation Analysis

Table 5

Classification results.

k	Minimum error function	Classification	β
2	88.675	{1∼156} {157∼269}	—
3	32.521	{1∼89} {90∼156} {157∼269}	1.74
4	18.671	{1∼43} {44∼89} {90∼156} {157∼269}	1.24
5	15.013	{1∼43} {44∼89} {90∼156} {157∼202} {203∼269}	—