What is the difference between narrowing on both sides and a narrow bridge?

[LeElisa]

The differences between narrowing on both sides and a narrow bridge are as follows: 1. Different shapes of signs: The sign for a narrowing bridge shows the middle being narrow and both ends wide; while the sign for narrowing on both sides of the road shows the top being narrow and the bottom wide. 2. Different meanings conveyed: A narrowing bridge sign is placed where the bridge width is less than the road width, and the bridge width is less than 6 meters, to warn drivers to pay attention to the narrowing bridge width ahead and drive carefully; narrowing on both sides of the road indicates that the road will narrow ahead, prompting drivers to slow down in advance as the road space will decrease, vehicle density will increase, and the risk of accidents will rise, so it is essential to slow down beforehand.