编著按改革开放以来，我国公路建设迅速发展，取得了显著成绩。高速公路的发展改善了我国公路网结构，缓解了交通拥挤状况，改善了投资环境，促进了对外开放，推进了沿线各行业的发展。高速公路在我国已覆盖了28个省、市、自治区。我国高速公路总里程已跃居世界第4位。本刊曾出 Since the reform and opening up, the road construction in our country has been rapidly developed and remarkable achievements have been made. The development of the expressway has improved the structure of our country’s road network, relieved the traffic congestion, improved the investment environment, promoted the opening to the outside world and promoted the development of various industries along the line. Expressway in our country has covered 28 provinces, municipalities and autonomous regions. The total mileage of our country’s expressways has risen to No. 4 in the world. This article has been published