Highway tunnel entrance is not only the exposed part of mountain in the tunnel engineering, but also an integral part of the highway breaking through the mountain. On the premise of ensuring the safety of tunnel entrance, it is important to realize the unity of safety and practical “stability” and landscape greening “beauty” of the expressway tunnel through reasonable aesthetic landscape greening design. In combination with the topographic and geomorphological conditions as well as the regional and humanistic conditions of the highway tunnel portal area, this paper introduces the cultural landscape and plant greening engineering of highway tunnel entrance by reference to the successful experience of tunnel entrance landscape greening, and puts forward the requirements for landscape and greening technology of highway tunnel entrance in accordance with the provisions of relevant regulations.

The service facilities along the expressway are designed to meet the needs of drivers and passengers, which is directly related to the convenient travel of the general public. In order to break through the rigid construction mode of expressway service facilities, this paper analyses the micro terrain design and construction of different types of expressway service facilities, and discusses the micro terrain construction of expressway service facilities, so as to improve the view of the landscape and the sense of physical and mental pleasure of the drivers, passengers and service personnel, eliminate security risks and improve service efficiency.

Service area is an important part of expressway. The construction of characteristic thematic service area is of great significance for improving highway service facilities and ensuring highway traffic safety. Through the study of location, facility layout, landscape design and architectural design of the characteristic service area, this paper analyzes the key points of the construction of the characteristic service area, which is helpful for the design and construction of the open and multi-functional service area. On the basis of meeting the functional requirements of the service area, it is necessary to adapt measures to local conditions, create the service area landscape with distinct personality and outstanding characteristics, and show the regional culture., 0 Web of Conferences https://doi.org/10.