Table 41. Large Trucks in Crashes by Hazardous Materials (HM) Cargo Type and HM Release

HM Cargo Type

HM Release

Yes

No

Unknown

Total

Number

Percent

Number

Percent

Number

Percent

Number

Percent

Fatal Crashes

Explosives

0

0.0%

4

6.6%

0

0.0%

4

3.5%

Gases

6

17.6%

8

13.1%

4

22.2%

18

15.9%

Flammable Liquids

13

38.2%

21

34.4%

6

33.3%

40

35.4%

Flammable Solids

0

0.0%

0

0.0%

0

0.0%

0

0.0%

Oxidizing Substances

2

5.9%

2

3.3%

1

5.6%

5

4.4%

Poisonous and Infectious Substances

0

0.0%

1

1.6%

0

0.0%

1

0.9%

Radioactive

0

0.0%

0

0.0%

0

0.0%

0

0.0%

Corrosives

2

5.9%

5

8.2%

0

0.0%

7

6.2%

Miscellaneous Dangerous Goods

1

2.9%

3

4.9%

0

0.0%

4

3.5%

Unknown

10

29.4%

17

27.9%

7

38.9%

34

30.1%

Total

34

100.0%

61

100.0%

18

100.0%

113

100.0%

Nonfatal Crashes

Explosives

9

3.4%

67

4.1%

8

2.7%

84

3.8%

Gases

29

10.9%

226

13.9%

32

10.9%

287

13.1%

Flammable Liquids

112

42.1%

499

30.7%

100

34.0%

711

32.5%

Flammable Solids

3

1.1%

14

0.9%

4

1.4%

21

1.0%

Oxidizing Substances

7

2.6%

17

1.0%

5

1.7%

29

1.3%

Poisonous and Infectious Substances

2

0.8%

8

0.5%

1

0.3%

11

0.5%

Radioactive

1

0.4%

5

0.3%

0

0.0%

6

0.3%

Corrosives

22

8.3%

94

5.8%

21

7.1%

137

6.3%

Miscellaneous Dangerous Goods

23

8.6%

83

5.1%

4

1.4%

110

5.0%

Unknown

58

21.8%

613

37.7%

119

40.5%

790

36.1%

Total

266

100.0%

1,626

100.0%

294

100.0%

2,186

100.0%

Note: A large truck is defined here as a truck, used for commercial purposes, with a gross vehicle weight rating (GVWR) or gross combination weight rating greater than 10,000 pounds.

Source: Federal Motor Carrier Safety Administration, MCMIS Crash File.