公路网发展规模研究就是要从量上合理确定公路网发展建设总规模和路网中各层次公路里程所占的比重,作为指导公路网布局规划的基本控制总量。一、公路发展规律分析公路发展通常遵循这样一个过程———起步期、快速发展期、稳定期。起步期以里程增长为特征,以基本连通为目标。快 The study on the scale of road network development is to determine the total scale of road network development and construction and the proportion of highway mileage at all levels as the basic control total to guide the layout of road network. First, the road development law analysis Road development usually follow such a process --- start-up period, rapid development period, stable period. The starting period is characterized by an increase in mileage, with the goal of basic connectivity. fast