What are the zigzag lines on the highway?

[VeraRose]

Highway zigzag lines are called longitudinal deceleration markings. The longitudinal deceleration markings for vehicle lanes consist of a set of diamond-shaped dashed lines parallel to the lane dividing lines. They are usually installed at bridge approaches and turns. Their main function is to create a sense of visual narrowing in the lane, inducing drivers to automatically reduce speed at curves, slopes, and other locations where deceleration is required. Relevant information about speed limits is as follows: 1. Introduction to speed limits: Speed limits generally refer to the regulation of vehicle speeds within a certain numerical range over a specified length of road. 2. Purpose of speed limits: The main purpose is to pre-warn drivers to reasonably control their speed in subsequent road sections ahead, prevent the dangers of speeding, and ensure driving safety. Speed limits are an indispensable and most critical aspect of highway transportation safety.

[OClayton]

As a seasoned driver with decades of experience, I often encounter those zigzag lines on the highway—they are actually rumble strips, specifically designed to remind us to slow down. Especially at curves, tunnel entrances, or exit ramps, if the speed is too high, it's easy to lose control. Driving over these lines causes the car to 'bump,' forcing you to ease off the throttle and preventing accidents. I think this design is ingenious—it’s more effective than relying solely on road signs, keeping drivers alert. In terms of safety, speeding on highways leads to many accidents, but the crash rate has dropped significantly since adding these rumble strips. Don’t underestimate them; paying attention to such details while driving daily can save you major trouble. Next time you drive past them, be mindful of your speed and prioritize safety. Unlike regular white road markings, rumble strips provide tactile feedback, which is even better at combating driver fatigue.

[MackenzieMarie]

As a novice driver who just got my license, I was both curious and surprised when I first saw the zigzag lines on the highway. Their wavy design laid out on the ground caught my attention, and after some research, I learned they are called deceleration markings. Their purpose is to create vibrations that jolt the car slightly, reminding drivers to slow down. These markings are commonly found at bridge entrances or in foggy/rainy areas, helping new drivers like me develop good habits and keep speeds within limits. They are highly practical for safety due to their intuitive nature, preventing drowsiness or distractions. I recommend new drivers pay close attention to such road markings and combine them with navigation alerts to adapt faster. On highways with heavy traffic, maintaining a safe distance is crucial. These seemingly simple designs can save lives, especially at night or in bad weather when their enhanced reflectivity makes a significant difference.

[LylaRose]

From a road design perspective, those serrated lines are effective safety optimization tools. They use raised materials to create vibrations on highways, directly stimulating drivers to perceive excessive speed and decelerate. Primarily installed in high-risk areas such as sharp curve entrances, they enhance visual and tactile warnings. Compared to mere markings, they are more effective in preventing speeding and reducing accidents. The implementation cost is low but yields high returns: data shows a 15% reduction in casualty rates after installation. In daily driving, it is advisable to adjust habits in conjunction with them, avoiding distractions or risky behaviors to collectively create harmonious traffic conditions.