How many types of speed confirmation lines are there?
3 Answers
There are three types of speed confirmation lines. They are white zigzag distance confirmation lines, white semicircular distance confirmation lines, and white rectangular distance confirmation lines. White zigzag distance confirmation line: The white zigzag distance confirmation line has a total width of 300 cm, with line widths of 40 cm or 45 cm. Starting from the confirmation base point at 0 meters, one line is set every 5 meters, with two lines forming a group, spaced 50 meters apart. Five groups are repeated, and multiple groups can also be set based on site conditions. White semicircular distance confirmation line: The white semicircular distance confirmation line has a hemisphere radius of 30 cm, set at intervals of 50 cm, and is generally continuously arranged within a certain road section. White rectangular distance confirmation line: Used in conjunction with distance confirmation signs, it is installed on sections of road where overtaking frequently occurs, where accidents are prone to happen, or where there is a need for such markings. The purpose of the highway distance confirmation marking is to remind drivers to maintain a safe driving distance from the vehicle in front when they see this marking, in order to avoid traffic accidents.
Let's talk about speed confirmation lines. Generally, there are several common types seen on the road. Radar speed detection is the most widely used, often set up at highway and urban intersections, with cameras working in tandem with the lines to capture speeding violations; Inductive loop speed detection is also quite common, embedded beneath the road to monitor speed changes via electromagnetic principles, frequently installed in tunnels; Section speed control is the latest trend, with clear markings at entry and exit points to mark the start and end times; Mobile speed detection is flexible but rarely has fixed markings; Physical markings like speed bumps in residential areas provide a more intuitive reminder to slow down. Having driven for over 20 years, I can say these designs are truly helpful. Whenever I encounter these markings, I slow down a bit, avoiding tickets and ensuring safety. Pay more attention to these while driving—don’t just focus on the dashboard. Balancing road conditions and markings is key to a smooth journey.
During routine vehicle maintenance, the detection equipment for speed measurement lines can generally be categorized into two types. One involves radar-based speed measurement markings, commonly found on highways with clear markings that work in conjunction with fixed cameras. The other is an induction loop system installed underground to detect vehicle speed, such as those at intersections or beneath bridges. Other methods include interval speed measurement markings at highway entrances and exits, as well as laser-assisted markings on narrow roads. While these technologies may not be highly advanced, they are practical and operate on simple principles, providing drivers with real-time speed feedback. It's important to pay attention to the location of these markings and not overlook their presence, as they help maintain reasonable speeds. Maintaining these devices can reduce accident rates, and regular inspections of road facilities can also help prevent unexpected incidents.
