What does the triangular filled area mean?

[VanCollin]

Triangular filled areas are channelizing lines. Here is some information about triangular filled areas: 1. Definition: Mainly consisting of one or several white V-shaped or diagonal striped areas set according to intersection terrain, indicating that vehicles must drive along the prescribed route and must not cross or drive over the lines. Primarily used for overly wide, irregular, or complex intersection conditions. The purpose is to ensure every vehicle "stays in its lane", serving to regulate, guide, and warn traffic. 2. Traffic regulations: According to Articles 38 and 44 of the Traffic Law, channelizing lines are a type of prohibited marking. Vehicles must follow the prescribed route and must not cross or drive over the lines, nor make U-turns or park arbitrarily in channelizing line areas. Violations may result in a 3-point penalty for drivers.