What does the sawtooth lane on the highway mean?
1 Answers
The sawtooth lane on the highway is a longitudinal speed bump, also known as a deceleration marking. As the name suggests, the main purpose of this lane is to prompt drivers to slow down in advance. Such lanes are typically set up before bridges, toll plaza areas, exit ramps, curves, slopes, and other locations. Additionally, they are often installed in accident-prone areas. The functions of sawtooth lanes and the classification of deceleration markings are as follows: Functions of sawtooth lanes: The function of sawtooth lanes is quite straightforward—to remind drivers to slow down in advance, as the area ahead may be accident-prone. Some curved road sections also feature such markings, usually accompanied by speed cameras. Speeding in these areas will be captured immediately. Don’t assume this marking serves a single purpose; in critical moments, it can save lives. Many drivers don’t understand the meaning of this marking and continue driving at high speeds. If an accident occurs or the road ahead is hazardous, regret may come too late. Classification of deceleration markings: Deceleration markings are divided into transverse deceleration markings and longitudinal deceleration markings. Transverse deceleration markings consist of a set of parallel white dashed lines, while longitudinal deceleration markings are a set of diamond-shaped dashed lines parallel to the lane divider, starting at the beginning of the longitudinal deceleration marking.
