Which road sections have a speed limit of 20 km/h?

[LauraLynn]

Sections with a speed limit of 20 km/h include: entering or exiting non-motorized lanes; passing through railway crossings, sharp curves, narrow roads, and narrow bridges; when encountering fog, rain, snow, dust, or hail with visibility less than 50 meters; roads without center lines and sections near schools; and highway toll booth entrances/exits. Safety improvement: According to data, the survival rate when hit by a vehicle traveling at 80 km/h is almost zero. When hit by a vehicle at 45 km/h, the survival rate is 50%, while reducing the speed to 30 km/h or below increases the survival rate to 90%. Noise reduction: Decreasing speed from 50 km/h to 30 km/h reduces noise by 3 decibels, which is a significant reduction.

[BlakelyLee]

A speed limit of 20 kilometers per hour is typically set in special areas requiring high safety precautions. School zones are a prime example, where speeds must be reduced to 20 during peak hours to ensure children can cross the street safely. Areas near hospitals also enforce a 20 km/h limit to maintain a quiet environment conducive to patient rest. Narrow alleys or internal residential roads often have a 20 km/h limit due to their tight spaces, poor visibility, and high pedestrian and bicycle traffic to prevent accidents. Construction sites frequently impose a 20 km/h speed limit to avoid injuries from falling materials or accidents. As a seasoned driver, I strongly advise slowing down in these areas—speeding not only incurs fines of over a thousand yuan but also risks lives. Developing the habit of observing speed limit signs is crucial.

[DiLillian]

When I pick up and drop off my kids, I often notice that a 20 km/h speed limit is common around schools, especially around 7 a.m., where signs clearly indicate slowing down to protect children's safety. Hospital entrances also have a 20 km/h limit to reduce noise and avoid disturbing patients' recovery. In residential alleys, lower speeds prevent pedestrian collisions. Shopping mall parking lots or parks sometimes enforce a 20 km/h limit due to high pedestrian traffic. Always pay attention to the time restrictions on speed limit signs—for example, school zones usually only enforce the limit during drop-off and pick-up times, so driving faster at other times is fine. I constantly remind myself to drive slower in these areas, as speeding could lead to fines, but safety is the bigger concern. Developing a habit of slowing down also reduces tire wear and fuel consumption, saving money and ensuring peace of mind.

[DeStephanie]

Speed limit of 20 zones mainly include school areas during class hours to ensure student safety, hospital vicinities for maintaining quietness, and residential alleys with mixed pedestrian and vehicle traffic requiring reduced speed. Park pathways or low emission zones often enforce a 20 limit for environmental protection, emission reduction, and accident risk mitigation. Avoid rushing or speeding in these areas—obeying rules protects yourself and prevents fines of thousands.