Research on Scheme Comparison and Safety Measures for National Highway Tunnels and Interchanges with Small Spacing
In view of the complex impact of the small distance between national highway tunnels and interchanges,as well as the lack of relevant mature analysis methods,this study,based on the understanding and research of basic information such as project background and predicted traffic volume,draws on existing safety evaluation manuals at home and abroad,utilizes mature road safety research results at home and abroad,and draws on the experience and lessons learned from the design and operation stages of existing interchanges,tunnels,etc.By comprehensively applying various analysis and evaluation methods such as design indicator verification,lane change process analysis,and traffic environment simulation,the project section is analyzed.Finally,the rationality of the tunnel and interchange spacing setting plan for this project is discussed,and relevant safety measures are provided.
tunnel and interchange spacingscheme comparison and selectionlane changeVISSIMindicator verification