625 If there are construction signs, square white signs, or vehicle warning signs along the road, it means the road up ahead is under construction. Therefore, all vehicles must slow down when passing through that area.
(A)O
(B)X

621 If a vehicle breaks down on a railroad crossing, the driver should take counter measures in the following sequence: press the emergency button→ push the vehicle out of the crossing→quickly move out of the way as the train approaches. (A)O(B)X

622 Electrical railroad lines have height clearance gates in front of and behind the crossing which alert vehicles exceeding the maximum height are not allowed to pass. (A)O(B)X

623 If a car breaks down in a freeway or expressway tunnel, the driver must turn on their emergency warning lights immediately, put out a vehicle breakdown sign 100 meters behind their vehicle, and notify the proper authorities with the emergency phone or by cell phone. (A)O(B)X

624 If a freeway ramp has a No-Entry sign, arrow pointing away from the ramp, or a red reflective sign on the ramp, it means this ramp is an exit and no vehicle may drive onto the ramp under any circumstances. (A)O(B)X

626 Accidents on highways are handled by the National Highway Police Bureau, while accidents on expressways are handled by county or city police offices of the government where accidents occur, or other police officers designated by the National Police Agency, Ministry of Interior. (A)O(B)X

627 Upon seeing repair technicians closing down a road or bridge, drivers should ignore it and speed up to pass through, so that their trip is not delayed. (A)O(B)X

628 If a planned route is closed, drivers should follow the instructions of repair technicians, and exit that section quickly and without lingering. (A)O(B)X

629 When driving through mountain roads during rainy days, drivers should listen to the Police Broadcasting Service and pay attention to the traffic reports. Also, be alert and avoid any dangerous sections. (A)O(B)X

630 Roads are absolutely safe; therefore, there is no need to check the traffic report before driving, and even in stormy weather there is no danger on the road. (A)O(B)X

631 During a period of torrential rain, as noted by the Central Weather Bureau, rock-falls, landslides, or swollen rivers under bridges in low rivers, caused by torrential rain in the upper rivers, are all signs of road disasters. When encountering these, drivers should avoid those sections and report to the departments of Directorate General of Highways or the Police Broadcasting Service as a warning to other drivers. (A)O(B)X