Research on Freight Development of Guangdong Province Based on Grey Theory Model

Table 9

COVID-19’s impact of freight development in Guangdong Province (unit, million ton; %).

Month	Total freight volume			Railway freight volume			Truck freight volume
	Actual value	Predictive value	Impact degree	Actual value	Predictive value	Impact degree	Actual value	Predictive value	Impact degree
Jan	250.750	339.903	−26.229	5.540	5.692	−2.668	158.130	233.029	−32.142
Feb	135.680	293.208	−53.726	5.480	4.731	15.829	70.980	203.705	−65.155
Mar	223.620	348.316	−35.800	6.270	5.725	9.511	132.740	245.071	−45.836
Apr	267.320	370.044	−27.760	5.980	5.484	9.048	170.170	261.582	−34.946
May	298.390	380.134	−21.504	6.910	5.839	18.336	191.570	269.464	−28.907
Jun	308.350	385.032	−19.916	6.780	5.495	23.387	204.060	273.113	−25.284
Jul	314.180	392.930	−20.042	7.260	5.683	27.744	211.690	281.402	−24.773
Aug	329.530	394.878	−16.549	6.650	5.637	17.964	215.540	282.716	−23.761
Sep	332.890	405.139	−17.833	6.960	5.678	22.586	220.050	289.356	−23.952
Oct	349.210	419.023	−16.661	6.360	5.780	10.029	237.200	301.893	−21.429
Nov	364.490	428.661	−14.970	6.990	5.916	18.163	245.020	306.762	−20.127
Dec	373.100	449.955	−17.081	6.490	6.266	3.568	256.410	326.298	−21.418
Total impact	4607.222	3547.510	−23.001	77.67	67.927	14.343	2313.560	3274.392	−29.344

Source: according to the calculation criteria.