Why does accident always occur?
https://www.google.com/url?q=http://www.gistmania.com/talk/topic,269645.0.html&sa=U&ved=0ahUKEwiZz4nEwd3cAhVMzIUKHfQnCiUQFggXMAk&usg=AOvVaw08tvZH0xnjXTMe9Kc7JA6H
Is it the falt of the drivers or the bridge itself?https://www.google.com/url?q=http://www.gistmania.com/talk/topic,269645.0.html&sa=U&ved=0ahUKEwiZz4nEwd3cAhVMzIUKHfQnCiUQFggXMAk&usg=AOvVaw08tvZH0xnjXTMe9Kc7JA6H