一、规划背景1.海外步道规划建设已有近百年历史。美国的步道(trail)是指为用于步行、骑自行车、骑马或其他形式的娱乐和运输的通道。美国于1921年开始规划建设世界首条步道——阿帕拉契山步道(Appalachian Trail)。1968年林登·约翰逊总统签署《国家步道系统法案》(National Trails System Act);经修订,美国国家步道系统包括国家休闲步道、国家风景步道、国家历史步道和连结步道四大 First, the planning background 1 overseas trail planning and construction has been nearly a hundred years of history. A trail in the United States refers to a passage used for walking, cycling, horse riding, or other forms of entertainment and transportation. The United States began planning and building the world’s first trail in 1921, the Appalachian Trail. In 1968, President Lyndon Johnson signed the National Trails System Act; as amended, the national trail system of the United States includes the National Recreation Trail, National Scenic Trail, National Historic Trail and the Connected Trail