ID number of items

Item content

Shapiro-Wilk coefficient

p value

MP1

Make a hard braking or sudden deceleration to avoid collision when a motorcycle is abruptly swerving right in front

0.88

1.35e−12

MP2

Distracted or preoccupied, realize belatedly that the vehicle ahead has slowed, and have to slam on the brakes to avoid a collision.

0.84

1.04e−14

MP3

Try to overtake without first checking your mirror, and then get hooted at by the vehicle behind which has already begun its overtaking maneuver.

0.77

2.2e−16

MP4

Try to overtake without first checking your mirror, then make the vehicles behind changing speed or lane, stopping, falling, or even making crashes

0.67

2.2e−16

MP5

Misjudge speed of oncoming vehicle when overtaking

0.78

2.2e−16

MP6

Fail to notice someone stepping out from behind a bus or parked vehicle until it is nearly too late, and make a hard brake or lane change

0.78

2.2e−16

MP7

Fail to notice someone going the wrong way until it is nearly too late, and make a hard brake or lane change

0.75

2.2e−16

MP8

Fail to notice vehicles parking illegally on the street or an obstacle up ahead on street until it is nearly too late, and make a hard brake or lane change

0.75

2.2e−16

MP9

Fail to check your mirror before pulling out, changing lanes, turning

0.79

2.2e−16

MP10

Fail to notice someone crossing illegally until it is nearly too late, and make a hard brake or lane change

0.75

2.2e−16

MP11

Brake too quickly on a slippery road and/or steer the wrong way in a skid.

0.72

2.2e−16

MP12

Fail to turn on blinkers when entering or leaving bus stops

0.65

2.2e−16

MP13

Turn on wrong blinkers when entering (turning left blinker) and leaving (turning right blinkers) bus stops

0.64

2.2e−16

Factor 4

Mistake-prone by bus drivers

0.94

1.05e−07

Factor 4.1

Lapses by bus drivers

0.83

1.90e−15

Factor 4.2

Errors by bus drivers

0.94

3.47e−08