Table 2 Distribution of collected traffic sign symbols36.

From: Potholes and traffic signs detection by classifier with vision transformers

Labels

# of images

Training (80%)

Testing (20%)

200 m

508

406

81

100–500 m

272

218

44

Barrier ahead

288

230

46

Broad wideness ahead

421

337

67

Crossroad

523

418

84

Cattle

275

220

44

Cycle crossing

899

719

144

Dangerous dip

726

581

116

Falling rocks

200

160

32

Ferry

369

295

59

Gap in median

788

630

126

Guarded 200 m

274

219

44

Guarded 50–100 m

272

218

44

Hump

666

533

107

Left-hand curve

495

396

79

Left hair pin bend

510

408

82

Left reverse bend

653

522

104

Loose gravel

200

160

32

Major road ahead

775

620

124

Men at work

413

330

66

Narrow bridge

434

347

69

Narrow road ahead

400

320

64

Pedestrian

2033

1626

325

Right hair pin bend

739

591

118

Right reverse bend

235

188

38

Right-hand curve

912

730

146

Round about

120

96

19

Steep ascendant

912

730

146

Steep descendant

420

336

67

Staggered intersection

420

336

67

Slippery road

382

306

61

Side road right

382

306

61

Side road left

1350

1080

216

School ahead

288

230

46

Traffic signal ahead

170

136

27

Unguarded 200 m

382

306

61

Unguarded 50–100 m

272

218

44

Y-intersection

272

218

44

Total

19,775

15,819

3163