What is the quota for the expressway sound barrier?
In fact, the current quota on the expressway noise barrier has not specified, is now in accordance with the quota of highway engineering to count!
You can check the highway quota, the highway used a lot
Highway expressway application highway engineering construction budget quota.
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The quota is a standard that sets the amount of resources consumed by a unit of qualified products in a reasonable manner and rational use of materials and machinery. It reflects the level of social productivity in a given period. For each construction project, the amount of labor is measured, including basic and other labor. Plus the material of this project, including basic materials and other materials. For the labor unit price, is based on the local labor value of different types of work, the value of the material is based on the pre-market price to develop the budget price.
