“一带一路”陆上沿线地区经济、社会和自然环境具有多样性和复杂性，实现“一带一路”公路基础设施的互联互通，存在诸多制约因素和挑战，亟需战略层面的研究和指引。本文基于大量的调研和专题研究，对“一带一路”陆上主要经济走廊的公路发展进行综合评估，梳理和归纳沿线公路建设面临的制约因素；结合战略思维和技术方案，提出总体建设和推进思路：以需求和基础定走向，以走向定自然和环境障碍，以自然和环境障碍定关键工程，以关键工程定技术解决方案，在此基础上，形成“一带一路”陆上主要走廊公路基础设施发展路径和重大工程建议；在战略实施过程中，结合评估关键控制工程的难易程度和资金需求量提出建设先后时序，针对项目本身的社会经济环境，制定可行的融资方案和运营方案。

The economic, societal, and natural environments of the Belt and Road countries are diversified and complex, which brings numerous constraints to the highway traffic infrastructure connectivity along the route. And the connectivity currently requires strategic research and guidance. Based on abundant investigations and special studies, this paper comprehensively evaluates the highway development of major economic corridors, and summarizes the constraints faced by highway construction along the route. It also proposes an overall construction and promotion idea, from the aspects of strategic thinking and technical solutions. The needs and foundations determine the direction of a highway, the direction determines the natural and environmental barriers, the barriers determine the key projects, and the key projects determine technical solutions. Based on this, development paths and key engineering proposals for the highway traffic infrastructure of main economic corridors along the Belt and Road can be formed. For specific implementation, a construction sequence should be proposed after evaluating the complexity and capital requirement of key control projects; and feasible financing and operating plans should be formulated based on the social and economic environments of the projects .