Structural diseases of roads refer to various problems or defects caused by damage or failure of road structures. These diseases can affect the flatness, strength, drainage performance and service life of the road, resulting in a decline in the function and safety of the road.
Functional Impairments: Functional Impairments are problems or deficiencies in a roadway or structure related to functional performance. Different from structural diseases, functional diseases mainly affect the use function and safety performance of the road, not just the damage of the road structure.
Here are some examples of common dysfunctions:
Roughness problem: The unevenness or unevenness of the road surface, including bumps, ruts, waves, etc., will affect the smooth driving and driving comfort of the vehicle.
Road drainage problems: Poor road drainage performance, such as accumulated water, flooding, poor drainage of rainwater, etc., will affect the anti-skid performance of the road and driving safety.
Visibility obstacles: For example, there are trees, shrubs, billboards and other obstructions on the road, which hinder the driver's sight and reduce the visibility and safety of the road.
Traffic Signs and Lines Problems: Worn, blurred, missing or wrong signs and lines can cause drivers to become lost and misled, reducing the navigation and guidance function of the road.
Lighting Issues: Insufficient or ineffective road lighting can affect nighttime driving visibility and safety.
Traffic fluency: Problems such as traffic congestion, out-of-sync signal lights, and improper traffic control will affect the efficiency and smoothness of road traffic.
Missing or damaged facilities: such as the lack of proper parking facilities, public toilets, emergency telephones, etc., or the existence of damage to these facilities, which will affect the convenience and safety of road users.
The solution to functional diseases usually requires comprehensive consideration of traffic engineering, planning, road design, signs and markings, traffic control and other factors. Maintaining and improving the functional condition of roads is critical to improving road safety and user experience.
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