1. Limited land resources: The land resources between Kaijiang and Yunlong may be limited, and it is impossible to extend the construction of expressway.
2. Economic cost: expressway needs a lot of money, and the government or related enterprises may think that the economic cost of extending the construction is too high.
3. Environmental protection: The construction of expressway may have a certain impact on the environment, and the government or related enterprises may not extend the construction because of environmental protection.