Table 2 The RMSE assessment of the five prediction models (m/s)

Speed 1

1 s

0.7749

0.6360

0.6988

0.6449

0.6513

2 s

1.2176

1.0069

1.0007

0.8880

0.9096

3 s

1.6094

1.3927

1.2758

1.1093

1.1287

4 s

1.9981

1.8147

1.5356

1.3260

1.3337

5 s

2.3775

2.2123

1.7880

1.5420

1.5366

Speed 2

1 s

0.8198

0.6989

0.6939

0.6680

0.6524

2 s

1.3068

1.0152

0.9849

0.9068

0.8888

3 s

1.7284

1.3613

1.2417

1.1173

1.0913

4 s

2.1424

1.7272

1.4735

1.3196

1.2920

5 s

2.5346

2.0335

1.6884

1.5132

1.4851

Speed 3

1 s

0.6961

0.6330

0.6116

0.5758

0.5872

2 s

1.0943

0.9044

0.8626

0.7863

0.7979

3 s

1.4581

1.2219

1.0866

0.9743

0.9884

4 s

1.8283

1.5621

1.3005

1.1610

1.1769

5 s

2.1861

1.8848

1.5055

1.3450

1.3593