Linear decision-making method for road network maintenance strategy

The invention discloses a linear decision-making method for a road network maintenance strategy, and the method comprises the following steps: collecting the technical condition data of different pavements, and obtaining a pavement performance evaluation value; constructing a network-level pavement performance decision model based on the pavement performance evaluation value; and selecting a road network maintenance strategy based on the network-level pavement performance decision model. The network-level pavement performance decision model maximizes the road network technical condition performance and meets the following constraint conditions: the pavement technical condition average value is greater than or equal to the expected pavement technical condition level value; the target number of the road sections with medium, secondary or poor pavement performance grades is greater than or equal to the preset road section number; the sum of the maintenance cost is smaller than or equal to the limit value of the