What is the speed limit for driving through a narrow bridge?

[OscarFitz]

When a motor vehicle passes through a railway crossing, sharp curve, narrow road, or narrow bridge, the maximum driving speed shall not exceed 30 km/h. According to Article 46 of the "Regulations for the Implementation of the Road Traffic Safety Law of the People's Republic of China", the maximum driving speed shall not exceed 30 kilometers per hour under any of the following circumstances, and for tractors, battery vehicles, and wheeled special machinery vehicles, the speed shall not exceed 15 kilometers per hour: 1. When entering or exiting a non-motorized lane, passing through a railway crossing, sharp curve, narrow road, or narrow bridge; 2. When making a U-turn, turning, or going down a steep slope; 3. When encountering fog, rain, snow, dust, or hail with visibility within 50 meters; 4. When driving on icy or muddy roads; 5. When towing a malfunctioning motor vehicle.

[RoseLee]

I've been driving for over a decade, and when crossing narrow bridges, speed must absolutely not be too fast. Generally, keeping it between 20 to 30 kilometers per hour is safer. Narrow bridges have limited space, such as two-way single lanes. If the speed is too high, it's easy to fail to stop in time, especially when encountering oncoming vehicles. Once, while crossing a bridge in the mountains at 30 km/h, I felt the car body slightly drift, and the rear wheels almost skidded. Slowing down not only protects yourself but also considers pedestrians and environmental factors, such as aging bridge surfaces or potholes. It's advisable to develop the habit of slowing down and easing off the throttle before reaching the bridge, keeping your eyes on the road ahead and paying attention to traffic signs. You should go even slower in rainy conditions, as wet and slippery roads increase braking distance—a point often overlooked by new drivers. Maintaining a low speed allows for more reaction time, reducing the risk of accidents. In conclusion, based on experience, safety first is far more important than saving time.

[VanMackenzie]

As a parent who frequently takes family trips, I'm especially cautious when crossing narrow bridges, usually slowing down to 15-25 km/h. With children in the car, severe jolts can easily cause motion sickness, so I reduce speed for smoother passage. Recalling my last journey, when crossing an old bridge at walking speed, the vehicle felt much more stable. Narrow bridges have limited width and visibility – slowing down allows timely stopping if obstacles appear. Related safety considerations include bridge structure; aging decks with poor load-bearing capacity may damage tires at higher speeds. Before trips, I check maps for bridge conditions and educate my kids about safety, teaching them to stay quiet during crossings. Slow driving isn't just about compliance; it enhances comfort and prevents sudden braking that might startle passengers. Overall, balancing family needs with controlled speeds within reasonable ranges proves most reliable.

[DiAshlyn]

From the perspective of vehicle dynamics, it is advisable to maintain a low speed when crossing narrow bridges, preferably under 20 km/h. Narrow environments can easily lead to delayed steering response, and high speeds increase the risk of losing control. Uneven weight distribution of the vehicle body or uneven road surfaces can amplify instability factors. I have observed that narrow bridges often have sharp turns, where high speeds can significantly increase braking distance. For example, the stopping distance at 30 km/h is several meters longer than at 20 km/h, which is crucial for safety. Considering variables such as weather and vehicle size, mid-size SUVs should slow down even more when crossing bridges. A reasonable strategy is to reduce speed before crossing and use a low gear to control power. Avoid accelerating to prevent the front wheels from lifting or scraping against guardrails. In summary, according to mechanical principles, slow speed is an effective way to avoid accidents.

[MarcusRose]

I just learned to drive not long ago, and I get a bit nervous when crossing narrow bridges, so I reduce my speed to very low, like around 15 to 20 km/h. My instructor taught me that when the bridge is narrow, the space is limited, and driving too fast can easily lead to accidents, such as hitting the edge or oncoming vehicles. Once, I tried crossing the bridge at 25 km/h, and the steering wheel shook violently, almost causing me to lose control, which scared me into slowing down immediately. Now I’ve developed a habit of lightly tapping the brakes before entering the bridge and keeping an eye on both sides and the rearview mirror. A common mistake beginners make is following the car in front too closely; when crossing a bridge, it’s better to maintain a greater distance. The learning process reminds me: safe driving is all about patience—don’t rush. Related experience includes practicing low-speed control more to ensure a smooth bridge crossing.