The Promotion Strategy Analysis for Green Degree of Railway Engineering Based on a System Dynamic Flow Diagram

Table 1

Definition and evaluation indexes of various green degrees in the engineering construction field.

Name	Definition	Evaluation index
Green degree of building	Evaluation criteria used to describe the degree of harmony between buildings and the environment and the degree of construction rationalization [13]	Safe and durable, healthy and comfortable, convenient life, resource-saving, livable environment [13]
Green degree of highway	In the whole life cycle, adhere to the concept of green development, protect the ecological environment, improve the quality of the project, save intensive resources and improve the degree of service quality [14]	Green concept, ecological environmental protection, resource conservation, quality construction, service improvement [14]
Green degree of construction	In the whole process of construction to achieve green development, low-carbon environmental protection, resource cycle of the green degree [15]	Energy resources, environmental protection, construction management, technological innovation, and social coordination [15]
Green degree of materials	It is used to measure the applicability of sand concrete with different litho logic mechanisms to railway engineering in complex and dangerous mountainous areas [16]	Performance, economic benefits, social benefits, environmental impact, production technology [16]
Green degree of temporary facilities	The degree of energy-saving, environmental protection, turnover, and efficient production in the whole life cycle [17]	Balanced ecological environment, scientific space layout, reasonable construction economy, coordinated management, and operation [17]