Research On Expressway Special Maintenance Project Management Process Optimization Based On Lean Thinking

The construction of expressway has ushered in the climax of rapid development for more than 30 years since first Hujia Expressway was opened to traffic in 1988 in China.According to the development plan of the transportation system,during the "14th Five-Year Plan",it is expected that by the end of 2025,the national expressway mileage will reach 190,000 kilometers,and the expressway mileage in Shanxi Province will reach 6,500 kilometers.In the background of the gradual improvement of the national expressway network,the number of cars has also continued to grow.Long road sections and high traffic volumes pose a huge challenge to road transportation and maintenance work.Expressway maintenance management is the most important test of expressway operation.It is the key to ensure the highway safety,comfort,speed and comfort vision of expressway traffic.It is also the key investment in the operating costs of expressway management units.Effective maintenance management is an important factor for enterprises to reduce costs and increase efficiency.The idea of lean management was first extracted from the Toyota model in Japan.Through continuous lean production,it eliminates waste in all value chain,helps enterprises reduce production costs,and improves management efficiency.Shanxi Expressway DT Company was established in2018.It is a highway operation and management company that has just realized enterprise management.It is exploring a special maintenance project management model that is more suitable for the company’s own reality,reducing non-value-added chains,shortening the entire project process time,and completing project implementation as soon as possible.And opening traffic as soon as possible to reduce social impact and increase toll revenue is the key to reducing costs and increasing efficiency,improving services,and healthy and sustainable development of high-speed enterprises.This article investigates the current situation of the special maintenance project management process of DT Company Shanxi Expressway Management Enterprise,integrate lean thinking into the special maintenance project management of DT Company,and use management,flow chart,brainstorming,fish-bone diagram and other tools to carry out the existing management process analyze,raise existing problems,discuss some measures and countermeasures,optimize the entire management process,and finally eliminate unnecessary process waste and improve the efficiency of the entire project implementation.Through the optimization and improvement of the six parts of the management process,this article improves the specialized maintenance project management process system of DT Company,establishes an effective communication mechanism,and achieves the effect of improving project operation efficiency,shortening the project cycle,making each division understands clearer of rights and responsibilities of project process management.Realizing the overall resource sharing of the enterprise,and improving employees’ enthusiasm,which has played a positive role in reducing costs and increasing efficiency,improving services standards,and healthy as well as sustainable development of high-speed enterprises.It can also provide new management ideas and references cases for project management in similar enterprises.