Road maintenance decision-making method and device

Abstract

The embodiment of the invention provides a road maintenance decision-making method and device, and the method comprises the steps: obtaining maintenance planning parameters and maintenance boundary conditions, determining the maintenance type and maintenance cost of each maintenance design unit according to the road condition data of each maintenance design unit and according to a standard condition, and determining the maintenance cost of each maintenance design unit; according to the maintenance type, the pavement recovery index reached by maintenance of each maintenance design unit, the pavement decay index reached by non-maintenance, the pavement recovery index reached by maintenance and the pavement decay index reached by non-maintenance according to the maintenance type and maintenance cost of each maintenance design unit; and determining a scheme set of all possible maintenance schemes of each maintenance design unit within the maintenance planning age limit, screening out a plurality of maintenance schemes meeting the maintenance boundary condition from the scheme set, calculating the benefit index of each maintenance scheme, and determining a maintenance decision scheme with the optimal benefit index. The optimal maintenance decision scheme can be reasonably determined, and the efficiency and the accuracy are improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of highway maintenance, and in particular to a highway maintenance decision-making method and device. Background Art

[0002] With the improvement of the national economy and the vigorous development of the highway industry, the traffic pressure on highways is also increasing. In addition, the highways built earlier are gradually entering the maintenance cycle, and the workload of highway maintenance in the coming years will continue to increase. The current maintenance planning and design work is mainly based on manual experience. Relevant personnel formulate maintenance plans within the planning period based on the current road conditions and experience, and subjectively evaluate the road conditions, which is not very accurate and difficult to formulate the best highway maintenance decision plan. Summary of the invention

[0003] In view of this, the purpose of the embodiments of the present application is to propose a highway maintenance decision-making method and device to solve the problem of formulating a highway maintenance decision-making plan.

[0004] Based on the above purpose, the embodiment of the present application provides a highway maintenance decision-making method, including:

[0005] Obtaining maintenance planning parameters and maintenance boundary conditions; wherein the maintenance planning parameters include the maintenance planning period and the road condition data of each maintenance design unit;

[0006] According to the road condition data of each maintenance design unit, the maintenance type and required maintenance cost of each maintenance design unit are determined according to preset standard conditions, as well as the pavement restoration index achieved by maintaining each maintenance design unit according to the maintenance type, and the pavement decay index achieved by not maintaining each maintenance design unit;

[0007] Determine a set of all possible maintenance plans for each maintenance design unit within the maintenance planning period according to the maintenance type and required maintenance cost of each maintenance design unit, the pavement restoration index achieved by maintenance, and the pavement decay index achieved without maintenance;

[0008] Selecting multiple maintenance plans that meet the maintenance boundary conditions from the plan set, and calculating the benefit index of each selected maintenance plan;

[0009] A maintenance decision plan with the best benefit index is determined from the multiple maintenance plans.

[0010] Optionally, the road condition data includes road surface indicators for the first year;

[0011] The pavement restoration index achieved by maintaining each maintenance design unit according to the maintenance type is:

[0012] If the maintenance design unit is maintained, the pavement restoration index corresponding to the pavement index is set to a preset standard value.

[0013] Optionally, determine the pavement degradation index that would be achieved without maintenance for each maintenance design unit by:

[0014] RLI=(RLI max -RLI min ) / (1+a0*exp(a1*A))+ RLI min (1)

[0015] Among them, RLI max is the upper limit of road surface index, RLI min is the lower limit of the road surface index, A is the road age, a0 and a1 are the preset model parameters, and RLI is the road surface decay index.

[0016] Optionally, the maintenance boundary conditions include the lower limit of the mean value of the pavement restoration index of each maintenance design unit and the upper limit of the total value of the maintenance cost;

[0017] A plurality of maintenance schemes satisfying the maintenance boundary conditions are selected from the scheme set, including:

[0018] For each maintenance plan in the plan set, calculate the average of the pavement restoration index of each maintenance design unit and the total value of the required maintenance cost;

[0019] A plurality of maintenance schemes are selected from the scheme set, wherein the mean of the pavement restoration index is greater than the lower limit of the mean of the pavement restoration index and the total value of the required maintenance cost is less than the upper limit of the total value of the maintenance cost.

[0020] Optionally, for each maintenance scheme in the scheme set, the mean of the pavement restoration index of each maintenance design unit and the total value of the required maintenance cost are calculated, including:

[0021] If part of each maintenance design unit is maintained and the other part is not maintained, the average of the pavement restoration index is calculated based on the pavement restoration index of each maintenance design unit that is maintained and the pavement decay index of each maintenance design unit that is not maintained, and the total value of the maintenance cost is calculated based on the maintenance cost of each maintenance design unit that is maintained.

[0022] Optionally, the upper limit of the total value of maintenance costs includes the upper limit of the total value of maintenance costs for each planning year and the upper limit of the total value of maintenance costs within the maintenance planning period;

[0023] A plurality of maintenance plans whose total required maintenance costs are less than the upper limit of the total maintenance costs are selected from the plan set, including:

[0024] Maintenance plans are selected from the plan set, the total value of maintenance costs required for each planning year being less than the upper limit of the total value of maintenance costs for the corresponding planning year, and the total value of maintenance costs required within the maintenance planning year being less than the upper limit of the total value of maintenance costs within the maintenance planning year.

[0025] Optionally, the method for calculating the benefit index is:

[0026]

[0027] Among them, C i is the benefit index of the i-th maintenance design unit, X i,j is the jth pavement index of the ith maintenance design unit, n is the number of pavement indexes, and Hi is the maintenance cost required for the ith maintenance design unit.

[0028] Optionally, a set of all possible maintenance solutions for each maintenance design unit within the maintenance planning period is determined, including:

[0029] An exhaustive method is used to determine the set of all possible maintenance solutions for each maintenance design unit within the maintenance planning period.

[0030] Optionally, the pavement indicators include a pavement technical condition index, a pavement damage condition index, a pavement ride quality index, a pavement bounce index, a pavement wear index, a pavement anti-skid performance index, and a pavement structure strength index.

[0031] The embodiment of the present application also provides a highway maintenance decision-making device, including:

[0032] An acquisition module is used to acquire maintenance planning parameters and maintenance boundary conditions; wherein the maintenance planning parameters include the maintenance planning period and the road condition data of each maintenance design unit;

[0033] A data item determination module is used to determine the maintenance type and required maintenance cost of each maintenance design unit according to the road condition data of each maintenance design unit and the road surface restoration index achieved by maintaining each maintenance design unit according to the maintenance type and the road surface decay index achieved by not maintaining each maintenance design unit according to the preset specification conditions;

[0034] A scheme set building module is used to determine a scheme set of all possible maintenance schemes for each maintenance design unit within the maintenance planning period according to the maintenance type and required maintenance cost of each maintenance design unit, the pavement restoration index achieved by maintenance, and the pavement decay index achieved without maintenance;

[0035] A screening module, used to screen out multiple maintenance schemes that meet the maintenance boundary conditions from the scheme set, and calculate the benefit index of each screened maintenance scheme;

[0036] The decision-making scheme determination module is used to determine the maintenance decision scheme with the best benefit index from multiple maintenance schemes.

[0037] From the above, it can be seen that the highway maintenance decision-making method and device provided in the embodiment of the present application obtains maintenance planning parameters and maintenance boundary conditions, and determines the maintenance type and required maintenance cost of each maintenance design unit according to the road condition data of each maintenance design unit, the pavement restoration index achieved by maintenance, the pavement decay index achieved without maintenance and other data items, and uses the exhaustive method to construct a set of all possible maintenance plans for each maintenance design unit, and selects multiple maintenance plans that meet the conditions from the set of plans according to the maintenance boundary conditions, calculates the benefit index of each maintenance plan, and selects the maintenance decision plan with the best benefit index. Based on various parameters and conditions, the present application can reasonably determine the best maintenance decision plan, improve the efficiency and accuracy of plan formulation, and provide a basis for scientific and economic maintenance of highways. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0039] Figure 1 A schematic diagram of a method flow of an embodiment of the present application;

[0040] Figure 2 This is a block diagram of the device structure of an embodiment of the present application;

[0041] Figure 3 This is a structural block diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0042] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0043] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connecting" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0044] like Figure 1 As shown, the embodiment of the present application provides a highway maintenance decision-making method, including:

[0045] S101: Obtaining maintenance planning parameters and maintenance boundary conditions; wherein the maintenance planning parameters include the maintenance planning period and the road condition data of each maintenance design unit;

[0046] In this embodiment, the maintenance planning parameters and maintenance boundary conditions of the maintenance design unit of the highway are first obtained, so as to determine the maintenance decision plan for the maintenance design unit that meets the maintenance boundary conditions based on the maintenance planning parameters. Among them, the maintenance design unit is formed by merging evaluation units of similar nature and spatial continuity. The factors to be considered include pavement type, cross-sectional form, maintenance history, traffic conditions, pavement technical conditions, maintenance type, etc. The evaluation unit refers to the minimum section length for evaluating the pavement technical condition. In general, the maintenance design unit refers to an analysis section with a length of 1 km.

[0047] In some embodiments, the maintenance planning parameters include the maintenance planning period (for example, M years), the identification of each maintenance design unit, the road condition data of each maintenance design unit, etc.; the maintenance boundary conditions include road condition boundary conditions and investment boundary conditions; the road condition data of the maintenance design unit include the pavement indicators of the first year, and the pavement indicators include the pavement technical condition index PQI, the pavement damage condition index PCI, the pavement ride quality index RQI, the pavement bounce index PBI, the pavement wear index PWI, the pavement anti-skid performance index SRI, the pavement structure strength index PSSI, etc.; the road condition boundary conditions include the lower limit of the road condition indicators in a certain year, the lower limit of the average road condition indicators during the planning period, etc., and the investment boundary conditions include the upper limit of the maintenance project investment in a certain year, the upper limit of the average annual maintenance project investment during the planning period, and the upper limit of the total investment in maintenance projects during the planning period.

[0048] In some embodiments, the maintenance planning parameters further include maintenance types set for one or more specific maintenance design units, that is, a maintenance type is specified for a specific maintenance design unit, so that the specific maintenance design unit is maintained according to the specified maintenance type in the generated maintenance decision plan. The maintenance types include daily maintenance, preventive maintenance, and repair maintenance.

[0049] In some methods, the user inputs various configuration parameters and conditions such as maintenance planning parameters and maintenance boundary conditions through the configured highway maintenance page, so as to generate the best maintenance decision plan based on the input parameters and conditions.

[0050] S102: Determine, based on the road condition data of each maintenance design unit and in accordance with preset specification conditions, the maintenance type and required maintenance cost of each maintenance design unit, as well as the pavement restoration index achieved by maintaining each maintenance design unit according to the maintenance type, and the pavement decay index achieved by not maintaining each maintenance design unit;

[0051] In this embodiment, after obtaining the road condition data of each maintenance design unit, the relevant road maintenance specifications are queried according to the relevant road surface indicators of the road condition data to determine the maintenance type and required maintenance cost of each maintenance design unit. As shown in Table 1, taking the road damage index PCI and the road ride quality index RQI as examples, the maintenance type and corresponding maintenance cost of each maintenance design unit are determined by querying the relevant highway asphalt pavement maintenance design specifications.

[0052] Table 1 Some road surface indicators and corresponding maintenance types and maintenance costs

[0053] Maintenance design unit PCI RQI Maintenance type Project price 1 90 >90 Daily maintenance H1 2 90 85～90 Preventive maintenance H2 3 90 <85 Repair and maintenance H3 4 85～90 >85 Preventive maintenance H2 5 85～90 <85 Repair and maintenance H3 6 <85 —— Repair and maintenance H3

[0054] As shown in Table 1, the pavement indicators of the six maintenance design units, the corresponding maintenance types and the unit price of the project are listed (the maintenance cost is calculated based on the unit price of the project). For maintenance design unit 1, its current pavement ride quality index RQI is greater than 90, the pavement damage condition index PCI is 90, the maintenance type determined by the specification is daily maintenance, and the corresponding unit price of the project is H1; for maintenance design unit 5, its current pavement ride quality index RQI is less than 85, the pavement damage condition index PCI is between 85 and 90, the maintenance type determined by the specification is repair maintenance, and the corresponding unit price of the project is H3; for maintenance design unit 6, there is no data for the pavement ride quality index RQI, so there is no need to consider this indicator, and the maintenance type can be determined based on the pavement damage condition index PCI.

[0055] In some embodiments, after determining the maintenance plan for each maintenance design unit, it is further determined that if each maintenance design unit is maintained according to the maintenance type, the pavement restoration index achieved by each maintenance design unit, and if each maintenance design unit is not maintained, the pavement decay index achieved by each maintenance design unit.

[0056] Among them, the pavement restoration index achieved by maintaining each maintenance design unit according to the maintenance type is: if each maintenance design unit is maintained according to the maintenance type, the pavement restoration index corresponding to the pavement index of the maintenance design unit is set to the preset standard value.

[0057] For example, the pavement driving quality index RQI of maintenance design unit 1 is greater than 90, and the pavement damage condition index PCI is 90. After daily maintenance, the pavement driving quality index RQI recovers to 100, and the pavement damage condition index PCI recovers to 100.

[0058] In some embodiments, if each maintenance design unit is not maintained, the calculation method of the pavement decay index achieved by each maintenance design unit is:

[0059] RLI=(RLI max -RLI min ) / (1+a0*exp(a1*A))+ RLI min (1)

[0060] Among them, RLI max is the upper limit of road surface index, RLI min is the lower limit of the road surface index, A is the road age, a0 and a1 are preset model parameters, and the values ​​are set according to the road section; RLI is the road surface decay index, that is, the road surface index corresponding to the road age A. When calculating, RLI corresponds to any road surface index, and the corresponding RLI max is the corresponding upper limit of the road surface index, RLI min is the corresponding lower limit of the road surface index.

[0061] S103: determining a set of all possible maintenance plans for each maintenance design unit within the maintenance planning period according to the maintenance type and required maintenance cost of each maintenance design unit, the pavement restoration index achieved by maintenance, and the pavement decay index achieved by no maintenance;

[0062] In this embodiment, after determining the maintenance type and required maintenance cost of each maintenance design unit, the pavement restoration index that can be achieved by maintaining each maintenance design unit and the pavement decay index that can be achieved without maintenance are determined, a set of all possible maintenance plans for each maintenance design unit within the designed maintenance planning period is determined.

[0063] Among them, the exhaustive method is used to determine the set of all possible maintenance plans for each maintenance design unit within the maintenance planning period. Specifically: all possible maintenance plans are included in the maintenance planning period: all maintenance design units are maintained according to the corresponding maintenance type (which can be the maintenance type within the specification or the set maintenance type), the pavement restoration index achieved by each maintenance design unit and the required maintenance cost; if any one of the maintenance design units is not maintained, the other maintenance design units are maintained according to the corresponding maintenance type, the pavement restoration index achieved by each maintenance design unit, the pavement decay index achieved by the maintenance design unit that has not been maintained, and the maintenance cost required for each maintenance design unit that is maintained; if any two of the maintenance design units are not maintained, the other maintenance design units are maintained according to the corresponding maintenance type. Carry out maintenance, the pavement restoration index achieved by each maintenance design unit, the pavement decay index achieved by the maintenance design unit that has not been maintained, and the maintenance cost required for each maintenance design unit that has been maintained; and so on, if any N-1 maintenance design units are not maintained, and the remaining maintenance design unit is maintained, the pavement restoration index achieved by the maintenance design unit and the required maintenance cost, and the pavement decay index achieved by the maintenance design unit that has not been maintained; until all maintenance design units are not maintained, and the pavement decay index achieved by all maintenance design units is obtained, all possible maintenance plans for all maintenance design units within the maintenance planning period are obtained by exhaustive enumeration to form a plan set.

[0064] Among them, the maintenance plan within the maintenance planning period includes whether each maintenance design unit will carry out maintenance in each planning year of the maintenance planning period, if maintenance is carried out, the pavement restoration indicators and maintenance costs achieved by maintenance according to the corresponding maintenance type, and the pavement decay indicators achieved by the maintenance design unit if maintenance is not carried out.

[0065] S104: Filter out multiple maintenance plans that meet the maintenance boundary conditions from the plan set, and calculate the benefit index of each of the filtered maintenance plans;

[0066] S105: Determine a maintenance decision plan with the best benefit index from multiple maintenance plans.

[0067] In this embodiment, after constructing a set of schemes, each maintenance scheme in the set of schemes is screened according to the set maintenance boundary conditions, and multiple maintenance schemes that meet the maintenance boundary conditions are selected. For each screened maintenance scheme, the corresponding benefit index is calculated respectively, so as to further select the best maintenance decision scheme according to the benefit index.

[0068] In some embodiments, based on the acquired maintenance boundary conditions, multiple maintenance solutions that meet the maintenance boundary conditions are screened out from the solution set, including:

[0069] For each maintenance plan in the plan set, calculate the mean of the pavement restoration index of each maintenance design unit and the total value of the required maintenance cost;

[0070] A plurality of maintenance schemes are selected from the scheme set, wherein the mean value of the pavement restoration index is greater than the set lower limit of the mean value of the pavement restoration index and the total value of the required maintenance cost is less than the set upper limit of the total value of the maintenance cost.

[0071] In this embodiment, when the maintenance boundary conditions are set as the lower limit of the mean of the pavement restoration index and the upper limit of the total maintenance cost, for each maintenance plan in the plan set, the mean of the pavement restoration index of each maintenance design unit is calculated respectively, and the total maintenance cost required for each maintenance design unit is counted. After that, it is judged whether the mean of the pavement restoration index is greater than the lower limit of the mean of the pavement restoration index, that is, whether the pavement restoration effect has achieved the expected effect, and whether the total maintenance cost is less than the upper limit of the total maintenance cost, that is, whether the maintenance cost exceeds the budget. If the mean of the pavement restoration index is greater than the lower limit of the mean of the pavement restoration index, and the total maintenance cost is less than the lower limit of the total maintenance cost, then the maintenance plan is used as an alternative maintenance plan that achieves the maintenance effect and is within the budget. According to the above process, multiple alternative maintenance plans that meet the maintenance boundary conditions are screened out from the plan set, and the best maintenance decision plan is selected therefrom.

[0072] In some examples, taking the pavement indicators as the pavement driving quality index RQI and the pavement damage condition index PCI as examples, the mean of the pavement driving quality recovery index and the mean of the pavement damage condition recovery index of each maintenance design unit are calculated, and then, it is determined whether the mean of the pavement driving quality recovery index is greater than the lower limit of the mean of the pavement driving quality recovery index, and whether the mean of the pavement damage condition recovery index is greater than the lower limit of the mean of the pavement damage condition recovery index.

[0073] In some embodiments, for each maintenance plan in the plan set, the average of the pavement restoration index of each maintenance design unit and the total value of the required maintenance cost are calculated, including:

[0074] If part of each maintenance design unit is maintained and the other part is not maintained, the average of the pavement restoration index is calculated based on the pavement restoration index of each maintenance design unit that is maintained and the pavement decay index of each maintenance design unit that is not maintained, and the total value of the maintenance cost is calculated based on the maintenance cost of each maintenance design unit that is maintained.

[0075] In some embodiments, the upper limit of the total value of maintenance costs includes the upper limit of the total value of maintenance costs for each planning year and the upper limit of the total value of maintenance costs within the maintenance planning period;

[0076] Filter out multiple maintenance plans from the plan set whose total required maintenance cost is less than the upper limit of the total maintenance cost, including:

[0077] Filter out maintenance plans from the plan set whose total maintenance costs required for each planning year are less than the upper limit of the total maintenance costs for the corresponding planning year, and whose total maintenance costs required within the maintenance planning year are less than the upper limit of the total maintenance costs within the maintenance planning year.

[0078] In this embodiment, the upper limit of the total value of maintenance costs may include the upper limit of the total value of maintenance costs for each year and the upper limit of the total value of maintenance costs within the maintenance planning period. For each maintenance plan, the total value of maintenance costs required by each maintenance design unit in each year and the total value of maintenance costs within the maintenance planning period are counted; then, it is determined whether the total value of maintenance costs required for each year exceeds the upper limit of the total value of maintenance costs set for the corresponding year. If it exceeds, it does not meet the maintenance boundary conditions. If it does not exceed, it is determined whether the total value of maintenance costs within the maintenance planning period exceeds the upper limit of the total value of maintenance costs within the set period. If it exceeds, it does not meet the maintenance boundary conditions. If it does not exceed, it meets the maintenance boundary conditions.

[0079] For example, the maintenance planning period is set to 2 years and the number of maintenance design units is 4. For the first candidate maintenance scheme in the scheme set, in the first planning year, if none of the four maintenance design units are maintained, the mean of the pavement restoration index (since none of them are maintained, the mean of the pavement restoration index is the mean of the pavement decay index) is 88, which is less than the set lower limit of the mean of the pavement restoration index of 90. Therefore, the candidate maintenance scheme does not meet the maintenance boundary conditions. For the second candidate maintenance scheme in the scheme set, in the first planning year, if 3 maintenance design units are not maintained, 1 maintenance design unit is maintained, and the required maintenance cost is 500,000, then the average of the pavement restoration index (the average of the pavement decay index of the 3 maintenance design units and the pavement restoration index of the 1 maintenance design unit) is 91.8, which is greater than the set lower limit of the pavement restoration index mean of 90, and the maintenance cost is less than the upper limit of the total maintenance cost in the first planning year. Continuing into the second planning year, if 3 maintenance design units are not maintained, 1 maintenance design unit is maintained, and the required maintenance cost is 500,000, then the average of the pavement restoration index is 90.5, which is greater than the set lower limit of the pavement restoration index mean of 90, and the total maintenance cost in the second year is less than the upper limit of the total maintenance cost in the second planning year. The total value of the maintenance cost for two years, 1 million, is less than the upper limit of the total maintenance cost in the maintenance planning period. Therefore, the second candidate maintenance scheme can be used as an alternative maintenance scheme.

[0080] In some embodiments, considering that the benefits of maintenance projects on the road network include both economic benefits and social benefits, this application designs a benefit index that simultaneously characterizes economic benefits and social benefits, expressed as:

[0081]

[0082] Among them, C i is the benefit index of the i-th maintenance design unit, X i,j is the jth pavement index of the ith maintenance design unit, n is the number of pavement indexes, and Hi is the maintenance cost required for the ith maintenance design unit.

[0083] According to formula (2), the worse the pavement index of the existing maintenance design unit, the higher the benefit to the road network after the maintenance project is carried out; the higher the maintenance cost required for the implementation of the maintenance project, the lower the benefit generated. Overall, the more the road condition is restored, the less maintenance cost is required, and the higher the overall benefit is achieved. For multiple maintenance plans selected from the plan set, after calculating the benefit index of each maintenance plan, a maintenance plan corresponding to the maximum benefit index is selected as the final maintenance decision plan.

[0084] Table 2 Some data items of maintenance plan

[0085]

[0086] As shown in Table 2, multiple maintenance plans are selected from the plan set. Each maintenance plan includes the identification corresponding to the maintenance design unit, the pavement index of the maintenance design unit (Table 2 lists the index PCI and index RQI), whether to maintain, the corresponding maintenance type and required maintenance cost if maintenance is performed, the pavement recovery index that can be achieved after maintenance, the pavement decay index that can be achieved if no maintenance is performed (the table uniformly uses the term "restoration effect" to represent the pavement recovery index or pavement decay index), the mean of the pavement index of each maintenance design unit (A mean, B mean), the mean of the pavement recovery index (A` mean = ∑Ai` / n, B` mean = ∑Bi` / n), the total value of the required maintenance cost, the benefit index calculated based on each pavement index and maintenance cost, and the sum of the benefit indexes. Based on each maintenance plan, a maintenance plan corresponding to the maximum sum of the benefit indexes is selected as the best maintenance decision plan.

[0087] The highway maintenance decision-making method provided in the embodiment of the present application obtains maintenance planning parameters and maintenance boundary conditions, determines the maintenance type and required maintenance cost of each maintenance design unit according to the road condition data of each maintenance design unit, the pavement restoration index achieved by maintenance, the pavement decay index achieved without maintenance and other data items, and uses an exhaustive method to construct a set of all possible maintenance plans for each maintenance design unit, selects multiple maintenance plans that meet the conditions from the set of plans according to the maintenance boundary conditions, calculates the benefit index of each maintenance plan, and selects the maintenance decision plan with the best benefit index. Based on various parameters and conditions, the present application reasonably formulates the best maintenance decision plan, improves the efficiency and accuracy of plan formulation, and provides a basis for scientific and economic maintenance of highways.

[0088] It should be noted that the method of the embodiment of the present application can be performed by a single device, such as a computer or server. The method of this embodiment can also be applied to a distributed scenario and completed by multiple devices cooperating with each other. In the case of such a distributed scenario, one of the multiple devices can only perform one or more steps in the method of the embodiment of the present application, and the multiple devices will interact with each other to complete the described method.

[0089] It should be noted that the above is a description of a specific embodiment of the present specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0090] like Figure 2 As shown, the embodiment of the present application provides a highway maintenance decision-making device, comprising:

[0091] An acquisition module is used to acquire maintenance planning parameters and maintenance boundary conditions; wherein the maintenance planning parameters include the maintenance planning period and the road condition data of each maintenance design unit;

[0092] A data item determination module is used to determine the maintenance type and required maintenance cost of each maintenance design unit according to the road condition data of each maintenance design unit and the road surface restoration index achieved by maintaining each maintenance design unit according to the maintenance type and the road surface decay index achieved by not maintaining each maintenance design unit according to the preset specification conditions;

[0093] A scheme set building module is used to determine a scheme set of all possible maintenance schemes for each maintenance design unit within the maintenance planning period according to the maintenance type and required maintenance cost of each maintenance design unit, the pavement restoration index achieved by maintenance, and the pavement decay index achieved without maintenance;

[0094] A screening module is used to screen out multiple maintenance plans that meet the maintenance boundary conditions from the plan set, and calculate the benefit index of each screened maintenance plan;

[0095] The decision-making scheme determination module is used to determine the maintenance decision scheme with the best benefit index from multiple maintenance schemes.

[0096] For the convenience of description, the above devices are described in terms of functions divided into various modules. Of course, when implementing the embodiments of the present application, the functions of each module can be implemented in the same or multiple software and / or hardware.

[0097] The apparatus of the above-mentioned embodiment is used to implement the corresponding method in the above-mentioned embodiment, and has the beneficial effects of the corresponding method embodiment, which will not be described in detail here.

[0098] Figure 3 A more specific schematic diagram of the hardware structure of an electronic device provided in this embodiment is shown, and the device may include: a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040 are connected to each other through the bus 1050 in the device.

[0099] The processor 1010 can be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0100] The memory 1020 may be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1020 may store an operating system and other application programs. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program codes are stored in the memory 1020 and are called and executed by the processor 1010.

[0101] The input / output interface 1030 is used to connect the input / output module to realize information input and output. The input / output module can be configured in the device as a component (not shown in the figure), or it can be externally connected to the device to provide corresponding functions. The input device may include a keyboard, a mouse, a touch screen, a microphone, various sensors, etc., and the output device may include a display, a speaker, a vibrator, an indicator light, etc.

[0102] The communication interface 1040 is used to connect a communication module (not shown) to realize communication interaction between the device and other devices. The communication module can realize communication through a wired mode (such as USB, network cable, etc.) or a wireless mode (such as mobile network, WIFI, Bluetooth, etc.).

[0103] The bus 1050 includes a path that transmits information between the various components of the device (eg, the processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040).

[0104] It should be noted that, although the above device only shows the processor 1010, the memory 1020, the input / output interface 1030, the communication interface 1040 and the bus 1050, in the specific implementation process, the device may also include other components necessary for normal operation. In addition, it can be understood by those skilled in the art that the above device may also only include the components necessary for implementing the embodiments of the present specification, and does not necessarily include all the components shown in the figure.

[0105] The electronic device of the above embodiment is used to implement the corresponding method in the above embodiment, and has the beneficial effects of the corresponding method embodiment, which will not be described in detail here.

[0106] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, read-only compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device.

[0107] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples. Based on the concept of the present disclosure, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0108] In addition, to simplify the description and discussion, and in order not to make the embodiments of the present application difficult to understand, the known power supply / ground connection with the integrated circuit (IC) chip and other components may or may not be shown in the provided drawings. In addition, the device can be shown in the form of a block diagram to avoid making the embodiments of the present application difficult to understand, and this also takes into account the fact that the details of the implementation of these block diagram devices are highly dependent on the platform to be implemented in the embodiments of the present application (that is, these details should be fully within the scope of understanding of those skilled in the art). In the case of elaborating specific details (e.g., circuits) to describe exemplary embodiments of the present disclosure, it is obvious to those skilled in the art that the embodiments of the present application can be implemented without these specific details or when these specific details are changed. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0109] Although the present disclosure has been described in conjunction with specific embodiments of the present disclosure, many replacements, modifications and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may use the embodiments discussed.

[0110] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present disclosure.

Claims

1. A highway maintenance decision-making method, characterized in that: include: Obtaining maintenance planning parameters and maintenance boundary conditions; wherein the maintenance planning parameters include the maintenance planning period and the road condition data of each maintenance design unit; According to the road condition data of each maintenance design unit, the maintenance type and required maintenance cost of each maintenance design unit are determined according to preset standard conditions, as well as the pavement restoration index achieved by maintaining each maintenance design unit according to the maintenance type, and the pavement decay index achieved by not maintaining each maintenance design unit; Determine a set of all possible maintenance plans for each maintenance design unit within the maintenance planning period according to the maintenance type and required maintenance cost of each maintenance design unit, the pavement restoration index achieved by maintenance, and the pavement decay index achieved without maintenance; Selecting multiple maintenance plans that meet the maintenance boundary conditions from the plan set, and calculating the benefit index of each selected maintenance plan; A maintenance decision plan with the best benefit index is determined from the multiple maintenance plans.

2. The method according to claim 1, characterized in that The road condition data includes road surface indicators for the first year; The pavement restoration index achieved by maintaining each maintenance design unit according to the maintenance type is: If the maintenance design unit is maintained, the pavement restoration index corresponding to the pavement index is set to a preset standard value.

3. The method according to claim 2, characterized in that Determine the pavement degradation index that would be achieved without maintenance for each maintenance design unit by: RLI=(RLI max -RLI min ) / (1+a0*exp(a1*A))+ RLI min (1) Among them, RLI max is the upper limit of road surface index, RLI min is the lower limit of the road surface index, A is the road age, a0 and a1 are the preset model parameters, and RLI is the road surface decay index.

4. The method according to claim 2 or 3, characterized in that: The maintenance boundary conditions include the lower limit of the mean value of the pavement restoration index of each maintenance design unit and the upper limit of the total value of the maintenance cost; A plurality of maintenance schemes satisfying the maintenance boundary conditions are selected from the scheme set, including: For each maintenance plan in the plan set, calculate the average of the pavement restoration index of each maintenance design unit and the total value of the required maintenance cost; A plurality of maintenance schemes are selected from the scheme set, wherein the mean of the pavement restoration index is greater than the lower limit of the mean of the pavement restoration index and the total value of the required maintenance cost is less than the upper limit of the total value of the maintenance cost.

5. The method according to claim 4, characterized in that For each maintenance scheme in the scheme set, the mean value of the pavement restoration index of each maintenance design unit and the total value of the required maintenance cost are calculated, including: If part of each maintenance design unit is maintained and the other part is not maintained, the average of the pavement restoration index is calculated based on the pavement restoration index of each maintenance design unit that is maintained and the pavement decay index of each maintenance design unit that is not maintained, and the total value of the maintenance cost is calculated based on the maintenance cost of each maintenance design unit that is maintained.

6. The method according to claim 4, characterized in that The total upper limit of maintenance costs includes the total upper limit of maintenance costs for each planning year and the total upper limit of maintenance costs within the maintenance planning period; A plurality of maintenance plans whose total required maintenance costs are less than the upper limit of the total maintenance costs are selected from the plan set, including: Maintenance plans are selected from the plan set, the total value of maintenance costs required for each planning year being less than the upper limit of the total value of maintenance costs for the corresponding planning year, and the total value of maintenance costs required within the maintenance planning year being less than the upper limit of the total value of maintenance costs within the maintenance planning year.

7. The method according to claim 1, characterized in that The method for calculating the benefit index is: Among them, C i is the benefit index of the i-th maintenance design unit, X i,j is the jth pavement index of the ith maintenance design unit, n is the number of pavement indexes, and Hi is the maintenance cost required for the ith maintenance design unit.

8. The method according to claim 1, characterized in that Determine the set of all possible maintenance plans for each maintenance design unit within the maintenance planning period, including: An exhaustive method is used to determine the set of all possible maintenance solutions for each maintenance design unit within the maintenance planning period.

9. The method according to claim 2, characterized in that: The pavement indicators include pavement technical condition index, pavement damage condition index, pavement ride quality index, pavement vehicle bounce index, pavement wear index, pavement anti-skid performance index, and pavement structure strength index.

10. A highway maintenance decision-making device, characterized in that: include: An acquisition module is used to acquire maintenance planning parameters and maintenance boundary conditions; wherein the maintenance planning parameters include the maintenance planning period and the road condition data of each maintenance design unit; A data item determination module is used to determine the maintenance type and required maintenance cost of each maintenance design unit according to the road condition data of each maintenance design unit and the road surface restoration index achieved by maintaining each maintenance design unit according to the maintenance type and the road surface decay index achieved by not maintaining each maintenance design unit according to the preset specification conditions; A scheme set building module is used to determine a scheme set of all possible maintenance schemes for each maintenance design unit within the maintenance planning period according to the maintenance type and required maintenance cost of each maintenance design unit, the pavement restoration index achieved by maintenance, and the pavement decay index achieved without maintenance; A screening module, used to screen out multiple maintenance schemes that meet the maintenance boundary conditions from the scheme set, and calculate the benefit index of each screened maintenance scheme; The decision-making scheme determination module is used to determine the maintenance decision scheme with the best benefit index from multiple maintenance schemes.

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