What is Section Speed Measurement?
4 Answers
Section speed measurement refers to a method of detecting the average speed of motor vehicles passing through a road section (speed measurement section) between two adjacent speed monitoring points. Functions of the section speed measurement system: By setting up two cameras at two adjacent monitoring points on the same road section, a monitoring and snapshot system is established. This system conducts real-time monitoring and snapshots of vehicles passing through the checkpoint area twice to obtain information such as vehicle speed, traffic flow, license plate number, color, approximate physical dimensions, and driver characteristics. The collected information is then transmitted through a network to the database of the public security traffic command center and traffic control sub-center for data storage, query, comparison, and other processing. Advantages of section speed measurement: High measurement accuracy, stable and reliable speed detection, more comprehensive recorded data. Due to detector limitations, single-point checkpoint devices cannot guarantee 100% image capture of passing vehicles. It offers high measurement efficiency and diverse speed measurement capabilities.
Interval speed measurement is a common monitoring method on highways. The entire system records your vehicle's entry and exit times at the starting and ending points, then calculates the average speed over the entire section. If the average exceeds the speed limit, it's considered a speeding violation. I think this design is quite clever because previously some drivers would only brake to slow down right before spot speed cameras to avoid tickets, but interval speed measurement requires maintaining a consistent speed throughout, making it fairer and safer. It helps reduce accident risks caused by sudden acceleration or braking, especially in areas like long tunnels or open highway plains. When driving, I'm used to checking navigation apps in advance to know about interval speed sections, so I can control my speed better. The concept of average speed is quite intuitive - it helps avoid unnecessary fines during long-distance drives and makes the journey smoother. Overall, it's a practical feature that encourages everyone to develop stable driving habits.
Interval speed monitoring on highways uses two checkpoints at the start and end to measure vehicle speed. The entry time is recorded when a vehicle passes the starting point, and the exit time is recorded at the endpoint. The average speed is calculated by dividing the time difference by the distance. Exceeding the speed limit constitutes a violation. I believe this is an excellent safety measure, ensuring drivers remain attentive throughout the entire journey, not just in certain sections. It reduces the likelihood of collisions caused by speeding, providing extra peace of mind, especially for children and elderly passengers. I advise drivers to pay attention to road signs, slow down in advance, and maintain a steady speed. Don't assume driving slowly in the middle section can evade detection—the system's calculations are precise. Driving this way not only avoids tickets but also saves fuel. The government promotes this for public safety, and I fully support it.
Interval speed measurement calculates the average speed over a fixed road section. Devices at entry and exit points record the time, and the system computes the average speed. Exceeding the limit is a violation. Compared to spot speed checks that monitor only one point, it provides smarter full-route evaluation. Commonly used on long stretches like highway tunnels. Technically straightforward—just maintain speed over the entire section. Offers clear safety advantages.
