Safety Early Warning Research for Highway Construction Based on Case-Based Reasoning and Variable Fuzzy Sets

Table 1

Risk associations for height crash accidents.

𝑇ID	Items	𝐴	𝐵	𝐶	𝐷	𝐸
𝑇1	{𝐴,𝐵,𝐶,𝐷,𝐸}	1	1	1	1	1
𝑇2	{𝐴,𝐵,𝐶,𝐷}	1	1	1	1	0
𝑇3	{𝐴,𝐵,𝐶,𝐸}	1	1	1	0	1
𝑇4	{𝐴,𝐵,𝐷}	1	1	0	1	0
𝑇5	{𝐴,𝐵,𝐶,𝐷,𝐸}	1	1	1	1	1
𝑇6	{𝐴,𝐵,𝐶,𝐸}	1	1	1	0	1
𝑇7	{𝐴,𝐷,𝐸}	1	0	0	1	1
𝑇8	{𝐵,𝐷}	0	1	0	1	0
𝑇9	{𝐴,𝐵,𝐶,𝐸}	1	1	1	0	1
𝑇10	{𝐵,𝐶,𝐷,𝐸}	0	1	1	1	1
𝑇11	{𝐴,𝐶,𝐷,𝐸}	1	0	1	1	1
𝑇12	{𝐵,𝐶,𝐷}	0	1	1	1	0