What are the main factors determining the number of motor vehicle lanes in a cross-section?

[StLucille]

The main factors determining the number of motor vehicle lanes in a cross-section are too many vehicles, roads being too narrow, too many people not obeying traffic rules, and excessively long traffic light durations, which create a chain reaction. Below is relevant information about automobiles: 1. Definition of an automobile: According to the latest Chinese national standard "Terms and Definitions of Types of Motor Vehicles and Trailers" (GB/T 3730.1-2001), an automobile is defined as follows: a non-track vehicle powered by an engine, with four or more wheels, primarily used for transporting people and/or goods; towing vehicles that carry people and/or goods; or for special purposes. 2. Introduction to domestic automobile brands: Domestic automobile brands include Hongqi, Chang'an, Great Wall, Chery, Geely, Roewe, BYD, etc.