Table 3. Contributing factors of RTAs...

Table 3.

Contributing factors of RTAs from the perception of different bus driver types

Variables	Sum Sq	Mean Sq	F-value	Pr(>F)
Tourist bus
Speeding driving	0.14	0.14	0.96	0.33
Overtaking at high speed	0.25	0.25	1.72	0.19
Reckless/careless driving	0.01	0.01	0.07	0.79
Fatigue driving	0.07	0.07	0.50	0.48
Drunk driving	0.96	0.96	6.61	0.01*
Driving while using a cell phone	0.26	0.26	1.78	0.18
Loud music/headphones	0.03	0.03	0.17	0.68
Overloading (hanging on the roof)	0.01	0.01	0.10	0.75
Unhealthy competition between buses while driving	1.12	1.12	7.67	0.01*
Wrong overtaking and wrong turning	0.35	0.35	2.43	0.12
Unregulated parking	0.05	0.05	0.32	0.57
No respect for traffic rules by pedestrians	0.01	0.01	0.10	0.76
Road lane discipline is not maintained	0.02	0.02	0.14	0.71
Slippery road due to rain	0.17	0.17	1.14	0.29
Weather problem	0.16	0.16	1.13	0.29
Limited visibility	0.31	0.31	2.16	0.14
The presence of roadside obstacles	0.11	0.11	0.74	0.39
Dazzling sun	0.01	0.01	0.04	0.85
Rain, sleet, snow or fog	0.54	0.54	3.68	0.06
Poor and defective road surface	0.03	0.03	0.18	0.67
Inadequate or masked signs or road markings	0.08	0.08	0.55	0.46
Narrow bridge approaches	0.14	0.14	0.93	0.34
Poor visibility at blind corners	0.36	0.36	2.49	0.12
Poor shoulders	0.13	0.13	0.86	0.35
Unforgiving side-drains	0.00	0.00	0.00	0.97
Inadequate safety barriers at steep vertical drops	0.02	0.02	0.16	0.69
Unscientific location of passing bays in single-lane roads	0.00	0.00	0.01	0.92
Lack of climbing lanes	0.10	0.10	0.68	0.41
Steep gradients at numerous sections	0.22	0.22	1.50	0.22
Narrow sections in built-up	0.00	0.00	0.01	0.94
Defective tires	0.03	0.03	0.19	0.66
Defective lights or indicators	0.21	0.21	1.44	0.23
Defective brakes	0.00	0.00	0.03	0.86
Defective steering	0.05	0.05	0.32	0.57
Defective mirrors	0.00	0.00	0.03	0.86
Mini bus
Speeding driving	0.16	0.16	0.72	0.40
Overtaking at high speed	0.69	0.69	3.10	0.08
Reckless/careless driving	0.00	0.00	0.01	0.91
Fatigue driving	0.36	0.36	1.61	0.21
Drunk driving	0.02	0.02	0.10	0.75
Driving while using a cell phone	0.06	0.06	0.27	0.60
Loud music/headphones	1.06	1.06	4.77	0.03*
Overloading (hanging on the roof)	0.05	0.05	0.23	0.63
Unhealthy competition between buses while driving	0.07	0.07	0.32	0.57
Wrong overtaking and wrong turning	0.20	0.20	0.89	0.35
Unregulated parking	0.21	0.21	0.93	0.34
No respect for traffic rules by pedestrians	0.13	0.13	0.59	0.45
Road lane discipline is not maintained	0.12	0.12	0.54	0.46
Slippery road due to rain	0.23	0.23	1.02	0.31
Weather problem	0.00	0.00	0.02	0.90
Limited visibility	0.01	0.01	0.03	0.86
The presence of roadside obstacles	1.60	1.60	7.18	0.01*
Dazzling sun	0.15	0.15	0.69	0.41
Rain, sleet, snow or fog	1.12	1.12	5.05	0.03*
Poor and defective road surface	0.02	0.02	0.11	0.74
Inadequate or masked signs or road markings	0.04	0.04	0.20	0.66
Narrow bridge approaches	0.00	0.00	0.01	0.91
Poor visibility at blind corners	0.79	0.79	3.55	0.06
Poor shoulders	0.15	0.15	0.68	0.41
Unforgiving side-drains	0.25	0.25	1.12	0.29
Inadequate safety barriers at steep vertical drops	0.30	0.30	1.34	0.25
Unscientific location of passing bays in single-lane roads	0.01	0.01	0.04	0.85
Lack of climbing lanes	0.02	0.02	0.08	0.78
Steep gradients at numerous sections	0.03	0.03	0.12	0.73
Narrow sections in built-up	0.01	0.00	0.02	0.88
Defective tires	0.00	0.00	0.01	0.92
Defective lights or indicators	0.02	0.02	0.09	0.76
Defective brakes	0.06	0.05	0.25	0.62
Defective steering	0.01	0.01	0.04	0.84
Defective mirrors	0.38	0.38	1.72	0.19
Big bus
Speeding driving	0.71	0.71	2.96	0.09
Overtaking at high speed	0.66	0.66	2.75	0.10
Reckless/careless driving	0.00	0.00	0.01	0.92
Fatigue driving	0.59	0.59	2.49	0.12
Drunk driving	0.05	0.05	0.22	0.64
Driving while using a cell phone	0.67	0.67	2.80	0.10
Loud music/headphones	1.25	1.25	5.23	0.02*
Overloading (hanging on the roof)	0.05	0.05	0.20	0.65
Unhealthy competition between buses while driving	0.43	0.43	1.78	0.18
Wrong overtaking and wrong turning	0.17	0.17	0.72	0.40
Unregulated parking	0.03	0.03	0.14	0.71
No respect for traffic rules by pedestrians	0.01	0.01	0.04	0.85
Road lane discipline is not maintained	0.39	0.39	1.63	0.20
Slippery road due to rain	0.03	0.03	0.12	0.73
Weather problem	0.37	0.37	1.54	0.22
Limited visibility	0.01	0.01	0.04	0.85
The presence of roadside obstacles	0.43	0.43	1.79	0.18
Dazzling sun	0.04	0.04	0.18	0.67
Rain, sleet, snow or fog	0.07	0.07	0.28	0.60
Poor and defective road surface	0.13	0.13	0.55	0.46
Inadequate or masked signs or road markings	0.00	0.00	0.00	0.96
Narrow bridge approaches	0.03	0.03	0.13	0.72
Poor visibility at blind corners	0.12	0.12	0.49	0.48
Poor shoulders	0.00	0.00	0.01	0.91
Unforgiving side-drains	0.64	0.64	2.66	0.10
Inadequate safety barriers at steep vertical drops	0.09	0.09	0.36	0.55
Unscientific location of passing bays in single-lane roads	0.00	0.00	0.01	0.91
Lack of climbing lanes	0.33	0.33	1.36	0.24
Steep gradients at numerous sections	0.01	0.01	0.04	0.83
Narrow sections in built-up	0.13	0.13	0.53	0.47
Defective tires	0.01	0.01	0.06	0.81
Defective lights or indicators	0.08	0.08	0.35	0.56
Defective brakes	0.07	0.07	0.28	0.60
Defective steering	0.16	0.16	0.66	0.42
Defective mirrors	0.66	0.66	2.78	0.10
Micro bus
Speeding driving	0.00	0.00	0.06	0.81
Overtaking at high speed	0.27	0.27	3.41	0.07
Reckless/careless driving	0.01	0.01	0.13	0.72
Fatigue driving	0.20	0.20	2.47	0.12
Drunk driving	0.81	0.81	10.32	0.00**
Driving while using a cell phone	0.00	0.00	0.05	0.82
Loud music/headphones	0.06	0.06	0.78	0.38
Overloading (hanging on the roof)	0.02	0.02	0.21	0.65
Unhealthy competition between buses while driving	0.45	0.45	5.69	0.02*
Wrong overtaking and wrong turning	0.07	0.07	0.88	0.35
Unregulated parking	0.00	0.00	0.04	0.84
No respect for traffic rules by pedestrians	0.02	0.02	0.28	0.60
Road lane discipline is not maintained	0.17	0.17	2.21	0.14
Slippery road due to rain	0.01	0.01	0.12	0.73
Weather problem	0.07	0.07	0.87	0.35
Limited visibility	0.32	0.32	4.11	0.04*
The presence of roadside obstacles	0.08	0.08	1.00	0.32
Dazzling sun	0.07	0.07	0.87	0.35
Rain, sleet, snow or fog	0.00	0.00	0.06	0.80
Poor and defective road surface	0.00	0.00	0.02	0.88
Inadequate or masked signs or road markings	0.01	0.01	0.11	0.74
Narrow bridge approaches	0.02	0.02	0.24	0.62
Poor visibility at blind corners	0.00	0.00	0.04	0.84
Poor shoulders	0.01	0.01	0.10	0.75
Unforgiving side-drains	0.08	0.08	1.02	0.31
Inadequate safety barriers at steep vertical drops	0.16	0.16	2.04	0.16
Unscientific location of passing bays in single-lane roads	0.03	0.03	0.41	0.52
Lack of climbing lanes	0.02	0.02	0.20	0.66
Steep gradients at numerous sections	0.28	0.28	3.50	0.06
Narrow sections in built-up	0.16	0.16	2.00	0.16
Defective tires	0.06	0.06	0.70	0.40
Defective lights or indicators	0.10	0.10	1.23	0.27
Defective brakes	0.00	0.00	0.02	0.88
Defective steering	0.08	0.08	0.98	0.32
Defective mirrors	0.02	0.02	0.21	0.64

Variables	Sum Sq	Mean Sq	F-value	Pr(>F)
Tourist bus
Speeding driving	0.14	0.14	0.96	0.33
Overtaking at high speed	0.25	0.25	1.72	0.19
Reckless/careless driving	0.01	0.01	0.07	0.79
Fatigue driving	0.07	0.07	0.50	0.48
Drunk driving	0.96	0.96	6.61	0.01*
Driving while using a cell phone	0.26	0.26	1.78	0.18
Loud music/headphones	0.03	0.03	0.17	0.68
Overloading (hanging on the roof)	0.01	0.01	0.10	0.75
Unhealthy competition between buses while driving	1.12	1.12	7.67	0.01*
Wrong overtaking and wrong turning	0.35	0.35	2.43	0.12
Unregulated parking	0.05	0.05	0.32	0.57
No respect for traffic rules by pedestrians	0.01	0.01	0.10	0.76
Road lane discipline is not maintained	0.02	0.02	0.14	0.71
Slippery road due to rain	0.17	0.17	1.14	0.29
Weather problem	0.16	0.16	1.13	0.29
Limited visibility	0.31	0.31	2.16	0.14
The presence of roadside obstacles	0.11	0.11	0.74	0.39
Dazzling sun	0.01	0.01	0.04	0.85
Rain, sleet, snow or fog	0.54	0.54	3.68	0.06
Poor and defective road surface	0.03	0.03	0.18	0.67
Inadequate or masked signs or road markings	0.08	0.08	0.55	0.46
Narrow bridge approaches	0.14	0.14	0.93	0.34
Poor visibility at blind corners	0.36	0.36	2.49	0.12
Poor shoulders	0.13	0.13	0.86	0.35
Unforgiving side-drains	0.00	0.00	0.00	0.97
Inadequate safety barriers at steep vertical drops	0.02	0.02	0.16	0.69
Unscientific location of passing bays in single-lane roads	0.00	0.00	0.01	0.92
Lack of climbing lanes	0.10	0.10	0.68	0.41
Steep gradients at numerous sections	0.22	0.22	1.50	0.22
Narrow sections in built-up	0.00	0.00	0.01	0.94
Defective tires	0.03	0.03	0.19	0.66
Defective lights or indicators	0.21	0.21	1.44	0.23
Defective brakes	0.00	0.00	0.03	0.86
Defective steering	0.05	0.05	0.32	0.57
Defective mirrors	0.00	0.00	0.03	0.86
Mini bus
Speeding driving	0.16	0.16	0.72	0.40
Overtaking at high speed	0.69	0.69	3.10	0.08
Reckless/careless driving	0.00	0.00	0.01	0.91
Fatigue driving	0.36	0.36	1.61	0.21
Drunk driving	0.02	0.02	0.10	0.75
Driving while using a cell phone	0.06	0.06	0.27	0.60
Loud music/headphones	1.06	1.06	4.77	0.03*
Overloading (hanging on the roof)	0.05	0.05	0.23	0.63
Unhealthy competition between buses while driving	0.07	0.07	0.32	0.57
Wrong overtaking and wrong turning	0.20	0.20	0.89	0.35
Unregulated parking	0.21	0.21	0.93	0.34
No respect for traffic rules by pedestrians	0.13	0.13	0.59	0.45
Road lane discipline is not maintained	0.12	0.12	0.54	0.46
Slippery road due to rain	0.23	0.23	1.02	0.31
Weather problem	0.00	0.00	0.02	0.90
Limited visibility	0.01	0.01	0.03	0.86
The presence of roadside obstacles	1.60	1.60	7.18	0.01*
Dazzling sun	0.15	0.15	0.69	0.41
Rain, sleet, snow or fog	1.12	1.12	5.05	0.03*
Poor and defective road surface	0.02	0.02	0.11	0.74
Inadequate or masked signs or road markings	0.04	0.04	0.20	0.66
Narrow bridge approaches	0.00	0.00	0.01	0.91
Poor visibility at blind corners	0.79	0.79	3.55	0.06
Poor shoulders	0.15	0.15	0.68	0.41
Unforgiving side-drains	0.25	0.25	1.12	0.29
Inadequate safety barriers at steep vertical drops	0.30	0.30	1.34	0.25
Unscientific location of passing bays in single-lane roads	0.01	0.01	0.04	0.85
Lack of climbing lanes	0.02	0.02	0.08	0.78
Steep gradients at numerous sections	0.03	0.03	0.12	0.73
Narrow sections in built-up	0.01	0.00	0.02	0.88
Defective tires	0.00	0.00	0.01	0.92
Defective lights or indicators	0.02	0.02	0.09	0.76
Defective brakes	0.06	0.05	0.25	0.62
Defective steering	0.01	0.01	0.04	0.84
Defective mirrors	0.38	0.38	1.72	0.19
Big bus
Speeding driving	0.71	0.71	2.96	0.09
Overtaking at high speed	0.66	0.66	2.75	0.10
Reckless/careless driving	0.00	0.00	0.01	0.92
Fatigue driving	0.59	0.59	2.49	0.12
Drunk driving	0.05	0.05	0.22	0.64
Driving while using a cell phone	0.67	0.67	2.80	0.10
Loud music/headphones	1.25	1.25	5.23	0.02*
Overloading (hanging on the roof)	0.05	0.05	0.20	0.65
Unhealthy competition between buses while driving	0.43	0.43	1.78	0.18
Wrong overtaking and wrong turning	0.17	0.17	0.72	0.40
Unregulated parking	0.03	0.03	0.14	0.71
No respect for traffic rules by pedestrians	0.01	0.01	0.04	0.85
Road lane discipline is not maintained	0.39	0.39	1.63	0.20
Slippery road due to rain	0.03	0.03	0.12	0.73
Weather problem	0.37	0.37	1.54	0.22
Limited visibility	0.01	0.01	0.04	0.85
The presence of roadside obstacles	0.43	0.43	1.79	0.18
Dazzling sun	0.04	0.04	0.18	0.67
Rain, sleet, snow or fog	0.07	0.07	0.28	0.60
Poor and defective road surface	0.13	0.13	0.55	0.46
Inadequate or masked signs or road markings	0.00	0.00	0.00	0.96
Narrow bridge approaches	0.03	0.03	0.13	0.72
Poor visibility at blind corners	0.12	0.12	0.49	0.48
Poor shoulders	0.00	0.00	0.01	0.91
Unforgiving side-drains	0.64	0.64	2.66	0.10
Inadequate safety barriers at steep vertical drops	0.09	0.09	0.36	0.55
Unscientific location of passing bays in single-lane roads	0.00	0.00	0.01	0.91
Lack of climbing lanes	0.33	0.33	1.36	0.24
Steep gradients at numerous sections	0.01	0.01	0.04	0.83
Narrow sections in built-up	0.13	0.13	0.53	0.47
Defective tires	0.01	0.01	0.06	0.81
Defective lights or indicators	0.08	0.08	0.35	0.56
Defective brakes	0.07	0.07	0.28	0.60
Defective steering	0.16	0.16	0.66	0.42
Defective mirrors	0.66	0.66	2.78	0.10
Micro bus
Speeding driving	0.00	0.00	0.06	0.81
Overtaking at high speed	0.27	0.27	3.41	0.07
Reckless/careless driving	0.01	0.01	0.13	0.72
Fatigue driving	0.20	0.20	2.47	0.12
Drunk driving	0.81	0.81	10.32	0.00**
Driving while using a cell phone	0.00	0.00	0.05	0.82
Loud music/headphones	0.06	0.06	0.78	0.38
Overloading (hanging on the roof)	0.02	0.02	0.21	0.65
Unhealthy competition between buses while driving	0.45	0.45	5.69	0.02*
Wrong overtaking and wrong turning	0.07	0.07	0.88	0.35
Unregulated parking	0.00	0.00	0.04	0.84
No respect for traffic rules by pedestrians	0.02	0.02	0.28	0.60
Road lane discipline is not maintained	0.17	0.17	2.21	0.14
Slippery road due to rain	0.01	0.01	0.12	0.73
Weather problem	0.07	0.07	0.87	0.35
Limited visibility	0.32	0.32	4.11	0.04*
The presence of roadside obstacles	0.08	0.08	1.00	0.32
Dazzling sun	0.07	0.07	0.87	0.35
Rain, sleet, snow or fog	0.00	0.00	0.06	0.80
Poor and defective road surface	0.00	0.00	0.02	0.88
Inadequate or masked signs or road markings	0.01	0.01	0.11	0.74
Narrow bridge approaches	0.02	0.02	0.24	0.62
Poor visibility at blind corners	0.00	0.00	0.04	0.84
Poor shoulders	0.01	0.01	0.10	0.75
Unforgiving side-drains	0.08	0.08	1.02	0.31
Inadequate safety barriers at steep vertical drops	0.16	0.16	2.04	0.16
Unscientific location of passing bays in single-lane roads	0.03	0.03	0.41	0.52
Lack of climbing lanes	0.02	0.02	0.20	0.66
Steep gradients at numerous sections	0.28	0.28	3.50	0.06
Narrow sections in built-up	0.16	0.16	2.00	0.16
Defective tires	0.06	0.06	0.70	0.40
Defective lights or indicators	0.10	0.10	1.23	0.27
Defective brakes	0.00	0.00	0.02	0.88
Defective steering	0.08	0.08	0.98	0.32
Defective mirrors	0.02	0.02	0.21	0.64

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