Research on the Route Pricing Optimization Model of the Car-Free Carrier Platform Based on the BP Neural Network Algorithm

Table 2

The calculation results of the degree of gray correlation.

Ranking	Indicator	Degree of relevance
1	Total mileage of the route	0.98274
2	Planned time	0.94328
3	Vehicle tonnage	0.83179
4	Urgency of demand	0.82017
5	Vehicle length	0.79424
6	Transport level	0.63961
7	Destination outlets	0.58013
8	Price adjustment ratio	0.54481
9	Packing type	0.40112
10	Originating outlet	0.22149
11	Adjusted time	0.20163
12	Line code	0.11295
13	Business type	0.06021
14	Type of requirement	0.05916
15	Actual time	0.05391
16	Type of price adjustment	0.05128
17	Time allocated	0.02012
18	Area type	0.01232
19	Transaction time	0.00412
20	Whether to renew	0.00011