A dynamic safety risk assessment method for rail transit lines
A risk assessment, dynamic security technology, applied in special data processing applications, instruments, electrical digital data processing, etc.
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[0305] Taking a certain moment in a certain urban rail transit network as an example to calculate, the index system is as follows: figure 1 shown. Table 1 gives the weights of the linguistic variables and the corresponding Type II fuzzy sets.
[0306] Table 1 Weighted linguistic variables and corresponding Type II fuzzy numbers
[0307] Linguistic variables
Type II fuzzy number
Very Unimportant (VU)
((0,0,1.15)(0,0,4.61);0.7,1)
Unimportant (U)
((2.79,2.31,3.71)(0.42,3.13,5.41);0.7,1)
Medium (M)
((2.79,3.34,3.67)(1.59,3.55,6.26);0.7,1)
Important (I)
((6.29,6.67,7.17)(4.59,6.58,9.5);0.7,1)
Very Important (VI)
((9.3,10,10)(6.37,10,10);0.7,1)
[0308] In order to obtain the real-time security status of a certain line at a certain moment, data acquisition equipment is deployed on site, and the calculation results of each index value at a certain moment are shown in Table 2.
[0309] Table 2 Values of each indic...
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