Problems with accidents at night to clarity cannot be assigned to represent the danger point. The checkpoints of the authorities and alert to the safety of the construction area and access is strictly prohibited.
The accident occurred at night can not be defined clearly in the danger point. The checkpoints and alert the authorities to ensure the safety of the construction zone and Area.
The problem was caused by the accident at night cannot specify a clear display point danger. Set check points of staff and alerts to the safety of the area construction area off-limits.