{"title":"Study on roadside landscape safety of secondary roads based on multi-level gray correlation","authors":"Hao Li, Maixuan Zhang","doi":"10.1680/jtran.22.00096","DOIUrl":null,"url":null,"abstract":"The roadside landscape affects road safety through its visual characteristics. To better evaluate the influence of the road safety landscape, this study focuses on the landscape greening of highway roadsides based on the characteristics of secondary roads without a central divider. Using expert scoring, this research statistically analyze various indicators. Then, multilevel gray correlation analysis is performed to calculate the weights of each index in an evaluation index system and establish a comprehensive evaluation model. The effects of various vegetation heights, spacings, and colors on safety are quantified. Finally, an empirical analysis of three road sections of the S319 and S246 highways in Hubei Province reveals that the level of highway safety is high when the vegetation height is 6 m, the plant spacing is 8 m, and the plant colors are coordinated. The conclusions provide a theoretical basis for establishing the roadside landscape along secondary roads and provide a preliminary theoretical reference for road design.","PeriodicalId":49670,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Transport","volume":"48 1","pages":""},"PeriodicalIF":1.0000,"publicationDate":"2023-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the Institution of Civil Engineers-Transport","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1680/jtran.22.00096","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}
引用次数: 0
Abstract
The roadside landscape affects road safety through its visual characteristics. To better evaluate the influence of the road safety landscape, this study focuses on the landscape greening of highway roadsides based on the characteristics of secondary roads without a central divider. Using expert scoring, this research statistically analyze various indicators. Then, multilevel gray correlation analysis is performed to calculate the weights of each index in an evaluation index system and establish a comprehensive evaluation model. The effects of various vegetation heights, spacings, and colors on safety are quantified. Finally, an empirical analysis of three road sections of the S319 and S246 highways in Hubei Province reveals that the level of highway safety is high when the vegetation height is 6 m, the plant spacing is 8 m, and the plant colors are coordinated. The conclusions provide a theoretical basis for establishing the roadside landscape along secondary roads and provide a preliminary theoretical reference for road design.
期刊介绍：
Transport is essential reading for those needing information on civil engineering developments across all areas of transport. This journal covers all aspects of planning, design, construction, maintenance and project management for the movement of goods and people.
Specific topics covered include: transport planning and policy, construction of infrastructure projects, traffic management, airports and highway pavement maintenance and performance and the economic and environmental aspects of urban and inter-urban transportation systems.
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