CN113191601A - Method for evaluating layout scheme of road traffic technology monitoring equipment - Google Patents
Method for evaluating layout scheme of road traffic technology monitoring equipment Download PDFInfo
- Publication number
- CN113191601A CN113191601A CN202110393435.7A CN202110393435A CN113191601A CN 113191601 A CN113191601 A CN 113191601A CN 202110393435 A CN202110393435 A CN 202110393435A CN 113191601 A CN113191601 A CN 113191601A
- Authority
- CN
- China
- Prior art keywords
- evaluation
- coverage rate
- road
- monitoring equipment
- scheme
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 48
- 238000005516 engineering process Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000011156 evaluation Methods 0.000 claims abstract description 90
- 239000011159 matrix material Substances 0.000 claims abstract description 39
- 238000001514 detection method Methods 0.000 claims description 10
- 238000010606 normalization Methods 0.000 claims description 5
- 238000013441 quality evaluation Methods 0.000 claims description 5
- 238000012163 sequencing technique Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 238000012806 monitoring device Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 206010039203 Road traffic accident Diseases 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0631—Resource planning, allocation, distributing or scheduling for enterprises or organisations
- G06Q10/06311—Scheduling, planning or task assignment for a person or group
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0639—Performance analysis of employees; Performance analysis of enterprise or organisation operations
- G06Q10/06393—Score-carding, benchmarking or key performance indicator [KPI] analysis
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/10—Services
- G06Q50/26—Government or public services
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Business, Economics & Management (AREA)
- Human Resources & Organizations (AREA)
- Engineering & Computer Science (AREA)
- Economics (AREA)
- Strategic Management (AREA)
- Tourism & Hospitality (AREA)
- Development Economics (AREA)
- Educational Administration (AREA)
- Entrepreneurship & Innovation (AREA)
- General Physics & Mathematics (AREA)
- Marketing (AREA)
- Physics & Mathematics (AREA)
- General Business, Economics & Management (AREA)
- Theoretical Computer Science (AREA)
- Operations Research (AREA)
- Quality & Reliability (AREA)
- Game Theory and Decision Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Primary Health Care (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention discloses a method for evaluating a layout scheme of road traffic technology monitoring equipment, which specifically comprises the steps of establishing an evaluation index system comprising three criteria; selecting an evaluation index to construct an index matrix according to an evaluation index system and facing to problem nodes related to a scheme to be evaluated; according to the constructed index matrix, defining the entropy value of each index by using an entropy weight method, and defining the entropy weight by entropy; and evaluating the indexes by applying a TOPSIS method based on entropy weight improvement according to the obtained entropy weight. The evaluation method provided by the invention improves the reasonability and scientificity of the layout of the monitoring equipment.
Description
Technical Field
The invention relates to a method for evaluating a layout scheme of road traffic technology monitoring equipment, and belongs to the technical field of road traffic control and management.
Background
Because the urban scale is continuously increased, the urban conditions are gradually complicated, and the safety problem of the city becomes the most important problem of urban management, so that the construction pace of urban infrastructure is accelerated in many domestic cities, road traffic technology monitoring equipment is updated along with the progress of science and technology, and high-definition bayonet systems are built in many cities, so that the high-definition bayonets become mainstream. The effect of the layout scheme of the road traffic technology monitoring equipment is reflected in many aspects, including the coverage condition of road mileage and the monitoring condition of traffic volume, the coverage condition of key nodes and signal control intersections, and the like. This makes evaluation of the layout of the road monitoring equipment more complicated. Therefore, how to select multiple indexes to describe the effect of the scheme from different angles and quantitatively evaluate the effects of all aspects is an important premise for ensuring the successful development of the road traffic technology monitoring equipment.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the method for evaluating the layout scheme of the road traffic technology monitoring equipment is provided, and the rationality and the scientificity of the layout of the monitoring equipment are improved.
The invention adopts the following technical scheme for solving the technical problems:
a method for evaluating a layout scheme of road traffic technology monitoring equipment comprises the following steps:
step 1, establishing an evaluation index system comprising three criteria of mileage, traffic volume coverage rate, key node coverage rate and matching efficiency;
step 2, for a scheme to be evaluated in a certain area, selecting evaluation indexes from an evaluation index system according to the type of evaluation index data provided by the area to construct an index matrix, and converting the index matrix into a standardized matrix;
step 3, for the standardized matrix, defining the entropy value of each evaluation index by using an entropy weight method, and defining the entropy weight value of each evaluation index by the entropy value;
and 4, evaluating the scheme to be evaluated by adopting an improved TOPSIS method based on entropy weight according to the entropy weight obtained in the step 3 so as to obtain a comprehensive evaluation relative value of the scheme to be evaluated, and sequencing the comprehensive evaluation relative values of all the schemes to be evaluated from large to small so as to obtain a quality evaluation order of all the schemes to be evaluated.
As a preferred embodiment of the present invention, the evaluation index system described in step 1 is specifically as follows:
the mileage and traffic volume coverage criteria comprises high definition road network mileage coverage ChdComprehensive roadNetwork mileage coverage rate CMAnd traffic volume coverage rate CqThe key node coverage rate criterion comprises important site entrance and exit coverage rate CkpAccident multiple site coverage rate CapCongested road segment coverage rate CcpKey bridge coverage rate CbAnd key tunnel coverage rate CtThe matching efficiency criterion comprises the matching rate C of the signalized intersectionsigMatching rate with traffic flow detection Ctf(ii) a Wherein, the high definition road network mileage coverage rate ChdRoad section length M monitored by high-definition camerahdThe ratio of the total mileage of the road network to the mileage of the road network, and the mileage coverage rate C of the comprehensive road networkMThe length M of the road section which can be monitored by all road traffic technology monitoring equipment in the layout schememRatio to total mileage M of road network, traffic volume coverage rate CqTraffic Q monitored by all road traffic technology monitoring equipment in the layout schememRatio of total traffic Q to road network, entrance and exit coverage rate C of important placekpThe number N of the entrances and exits of the important places, which can be detected by all the road traffic technology monitoring equipment in the layout schememkpAnd the total number N of entrances and exits of important placeskpRatio of (1), accident-prone site coverage rate CapThe number N of accident multi-issue points which can be detected by all the road traffic technology monitoring equipment in the layout schememapAnd total number of accident multiple points NapRatio of (a), congested road section coverage rate CcpThe number N of the congested road sections which can be detected by all the road traffic technology monitoring equipment in the layout schememcpAnd the total number N of congested road sectionscpRatio of (1), key bridge coverage rate CbThe number N of key bridges which can be detected by all road traffic technology monitoring equipment in the layout schemembAnd the total number N of key bridgesbRatio of (1), key tunnel coverage rate CtThe number N of key tunnels which can be detected by all road traffic technology monitoring equipment in the layout schememtAnd the total number N of key tunnelstThe matching rate C of the intersection is controlled by the signalsigControlling the number N of intersections for the signals which can be monitored by all the road traffic technology monitoring equipment in the layout schememsigTotal number N of intersection with signal controlmRatio of (a), traffic flow detection matching rate CtfThe number N of the road sections which can be monitored by all the road traffic technology monitoring equipment in the layout schememtfAnd the total number N of the traffic flow detection road sectionstfThe ratio of (A) to (B);
wherein, the high definition road network mileage coverage rate ChdThe evaluation scale of (a) was as follows: when C is presenthdNot less than 95 percent, and the evaluation grade is very good, when 95 percent>ChdNot less than 80 percent, and the evaluation grade is better, when 80 percent>ChdNot less than 60 percent, the evaluation grade is general, when C ishd<60%, the evaluation grade is poor; high definition road network mileage coverage rate ChdAnd comprehensive road network mileage coverage rate CMTraffic volume coverage rate CqCoverage rate C of entrance/exit of important placekpAccident multiple site coverage rate CapCongested road segment coverage rate CcpKey bridge coverage rate CbAnd key tunnel coverage rate CtThe evaluation grades are the same;
signal control intersection matching rate CsigThe evaluation scale of (a) was as follows: when C is presentsigNot less than 90 percent, good evaluation grade, when the ratio is more than 90 percent CsigMore than or equal to 70 percent, the evaluation grade is better, and when the ratio is more than 70 percent, CsigNot less than 50 percent, the evaluation grade is general, when C issigLess than 50%, the evaluation grade is poor; signal control intersection matching rate CsigMatching rate with traffic flow detection CtfThe evaluation grades of (a) were the same.
As a preferred embodiment of the present invention, the step 2 specifically includes the following steps:
for m schemes to be evaluated in a certain area, n evaluation indexes are selected from an evaluation index system according to the evaluation index data type provided by the area to construct an index matrix X, wherein X is (X is)ij)m×nWherein x isijJ-th evaluation index value representing the ith scheme to be evaluated, i is 1, …, m, j is 1, …, n, and j is an index value X in the j-th column of the index matrix XijForward orientation: (x)ij)+＝max(xij)-xijConverting the index matrix X into a standardized matrix Z, wherein Z is (Z)ij)m×n，
As a preferred embodiment of the present invention, the step 3 specifically includes the following steps:
according to the standardized matrix Z, calculating the proportion p of the ith scheme to be evaluated in the jth evaluation indexij，
zijThe element of the standardized matrix Z, m is the number of the schemes to be evaluated, the entropy value H of the jth evaluation indexjComprises the following steps:
k is 1/ln m, entropy weight w of j-th evaluation indexjComprises the following steps:
n is the number of evaluation indexes.
As a preferred embodiment of the present invention, the step 4 specifically includes the following steps:
calculating a weighted normalization matrix R according to the entropy weight, wherein R is (R)ij)m×n，rij＝wj·zijM is the number of the schemes to be evaluated, n is the number of the evaluation indexes, wjIs the entropy weight, z, of the jth evaluation indexijAs elements of the normalized matrix Z;
finding the maximum value and the minimum value of the jth evaluation index in the weighted normalization matrix to form a virtual positive ideal solution
Sum negative ideal solution
Calculating the Euclidean distance between the ith scheme to be evaluated and the positive and negative ideal solutions:
thereby obtaining a comprehensive evaluation relative value C of the ith scheme to be evaluatedi，
And sequencing the comprehensive evaluation relative values of all the schemes to be evaluated from large to small to obtain the quality evaluation order of all the schemes to be evaluated.
Compared with the prior art, the invention adopting the technical scheme has the following technical effects:
the method comprises the steps of establishing an evaluation index system comprising three criteria; selecting an evaluation index to construct an index matrix for problem nodes related to a scheme to be evaluated; according to the constructed index matrix, defining the entropy value of each index by using an entropy weight method, and defining the entropy weight by entropy; according to the obtained entropy weight, the indexes are evaluated by a TOPSIS method based on entropy weight improvement, and the rationality and the scientificity of the layout of the monitoring equipment are improved.
Drawings
Fig. 1 is a flowchart of a method for evaluating a layout scheme of a road traffic technology monitoring device according to the present invention.
FIG. 2 is a summary diagram of the current situation of the monitoring device layout and the alternative points in the embodiment of the present invention.
Fig. 3 is a diagram of an optimized layout of monitoring devices in the embodiment of the present invention.
FIG. 4 is a partial diagram of a conventional monitoring arrangement in an embodiment of the present invention.
FIG. 5 is a diagram of a portion of an optimized monitor layout in an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As shown in fig. 1, a flow chart of a method for evaluating a layout scheme of a road traffic technology monitoring device provided by the invention specifically includes the following steps:
an evaluation index system comprising three criteria of mileage and traffic volume coverage, critical node coverage and matching efficiency is formulated, and the following table 1:
TABLE 1 evaluation index and calculation method
Wherein, the high definition road network mileage coverage rate ChdRoad section length M monitored by high definition camerahdThe ratio of the total mileage of the road network to the mileage of the road network, and the mileage coverage rate C of the comprehensive road networkMMeans the length M of the road section which can be monitored by all road traffic technology monitoring equipment in the schememRatio to total mileage M of road network, traffic volume coverage rate CqTraffic Q monitored by monitoring equipment arranged in finger schememThe ratio of the total traffic Q of the road network counted by all the detectors and the entrance and exit coverage rate C of the important placeskpCoverage rate of accident-prone spots CapCoverage rate of congested road section CcpEmphasis on bridge coverage CbEmphasis on tunnel coverage CtIn which N ismkp、Nmap、Nmcp、Nmb、NmtThe number of the entrances and exits of the important places, the number of accident multi-points, the number of congested road sections, the number of key bridges and the number of key tunnels which can be detected by the arranged road traffic technology monitoring equipment respectively, Nkp、Nap、Ncp、Nb、NtRespectively the total number of entrances and exits of important places in the research range and the total number of accident multi-occurrence pointsThe number, the total number of congested road sections, the total number of key bridges and the total number of key tunnels and the matching rate C of the signal control intersectionsigThe number N of signal control intersections monitored by road traffic technology monitoring equipment arranged in the scheme ismsigAnd the total number N of signal control intersections in the research rangemRatio, traffic flow detection match rate CtfRefers to the number N of road sections monitored by the road traffic technology monitoring equipment in the schememtfAnd the total number N of traffic flow detection sectionstfThe ratio of.
And selecting the n evaluation indexes to construct an index matrix X (X) facing to m schemes to be evaluatedij)m×nWherein x isijThe jth index value representing the ith scenario, and the minimalist index is normalized before performing the calculation and comparison: (x)ij)+＝max(x)-xijNormalizing the matrix X to a normalized matrix Z having the element values of
Wherein z isijThe j index value representing the i scheme.
According to the constructed index matrix, the entropy value of each index is defined by using an entropy weight method, and the entropy weight is defined by entropy. p is a radical ofijExpressing the proportion of the ith scheme in the jth index:
Hjentropy for the jth indicator:
wherein k is 1/ln m. w is ajThe weight for the jth index is:
according to the obtained entropy weight, the indexes are evaluated by applying a TOPSIS (technique for Order Preference by Similarity to an Ideal solution) method based on entropy weight improvement. First, a weighting normalization matrix is calculated, where R (R) is the weighting matrixij)m×nThe element value isProduct of normalized element value and corresponding weight: r isij＝wj·zij(ii) a Secondly, the maximum value and the minimum value of the jth index are searched in the weighting matrix to form a virtual positive ideal solution
Sum negative ideal solution
Thirdly, obtaining the Euclidean distance between the ith scheme and the positive and negative ideal solutions:
the comprehensive evaluation relative value of the finally obtained scheme i is as follows:
Cithe value is relative value, C of each scheme isiAnd sorting the values to obtain the quality evaluation order of the scheme.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The current situation and alternative points of the arrangement of road traffic technology monitoring equipment in the area wujiang, suzhou city are shown in fig. 2, 116 places in the research area are used as alternative points of the checkpoint, and various places in the point arrangement requirement are covered: the method comprises the following steps that firstly, motor vehicle entrances and exits in key public areas comprise 11 rail transit stations, 4 long-distance bus station entrances and exits, 1 used vehicle market, 9 gas stations, 7 parks, 1 square, 8 scenic spot entrances and exits, 4 stadium entrances and exits and 1 cultural stadium; the important units comprise 10 motor vehicle entrances and exits, 2 propaganda units, 1 communication post unit, 10 school entrances and exits, 8 hospital entrances and exits, 9 scientific research places and financial units and 1 large grain material storage unit;boundaries of important administrative regions, including 9 boundaries of important provinces; and fourthly, 20 important bridges. 349 actual bayonet camera point locations exist, and the point locations are monitored. In addition, the traffic accident multi-occurrence point is at 55 positions in total among the bayonet alternative points. According to the evaluation index data type provided by the embodiment, key node evaluation criteria including three related evaluation indexes, namely, key bridge coverage, accident-prone point coverage and important site entrance and exit coverage, can be selected. In this embodiment, there are 8 schemes to be evaluated, and therefore, for the 8 schemes to be evaluated, the 3 evaluation indexes are selected to construct an index matrix X (X ═ X)ij)8×3The specific parameters are shown in the following table 2.
TABLE 2 evaluation results of the protocols under different parameters
According to the constructed index matrix, the entropy weight of each evaluation index is determined by using an entropy weight method, and the order of merits of each scheme is calculated by using a TOPSIS method, and the result is shown in the following table 3.
TABLE 3 results of the comprehensive evaluation protocol
| Calculated value of comprehensive evaluation | Sorting |
| 0.515813 | 6 |
| 0.411627 | 7 |
| 0.556591 | 4 |
| 0.550846 | 5 |
| 0.601007 | 3 |
| 0.284915 | 8 |
| 0.623618 | 2 |
| 0.753537 | 1 |
As can be seen from the evaluation results, the evaluation score of the eighth group was the highest. The scheme reserves all the existing point locations, and adds 122 newly-added equipment layout point locations, wherein the 122 newly-added equipment layout point locations comprise 13 monitoring points for the counterweight bridge, 58 monitoring point locations for the entrance and exit of the counterweight bridge and 51 general monitoring point locations. In addition, 53 completion point locations monitoring on places with multiple traffic accidents are performed, and the excellent performance of the optimal scheme in consideration of the existing point locations, traffic accident multiple-occurrence points and other important point locations (including entrances and exits of important public areas, urban road intersections, boundaries of important administrative areas and the like) can be found by comparing the current diagram with fig. 2, the optimization diagram with fig. 3, the local current diagram with fig. 4 and the local optimization diagram with fig. 5. By combining the table 2, the selection scheme has obvious advantages in the aspects of key bridge coverage, important site entrance and exit coverage and key node coverage, and the evaluation method has reasonable performance and feasibility.
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modifications made on the basis of the technical scheme according to the technical idea of the present invention fall within the protection scope of the present invention.
Claims (5)
1. A method for evaluating a layout scheme of road traffic technology monitoring equipment is characterized by comprising the following steps:
step 1, establishing an evaluation index system comprising three criteria of mileage, traffic volume coverage rate, key node coverage rate and matching efficiency;
step 2, for a scheme to be evaluated in a certain area, selecting evaluation indexes from an evaluation index system according to the type of evaluation index data provided by the area to construct an index matrix, and converting the index matrix into a standardized matrix;
step 3, for the standardized matrix, defining the entropy value of each evaluation index by using an entropy weight method, and defining the entropy weight value of each evaluation index by the entropy value;
and 4, evaluating the scheme to be evaluated by adopting an improved TOPSIS method based on entropy weight according to the entropy weight obtained in the step 3 so as to obtain a comprehensive evaluation relative value of the scheme to be evaluated, and sequencing the comprehensive evaluation relative values of all the schemes to be evaluated from large to small so as to obtain a quality evaluation order of all the schemes to be evaluated.
2. The method for evaluating the layout scheme of the road traffic technology monitoring equipment according to claim 1, wherein the evaluation index system in the step 1 is specifically as follows:
the mileage and traffic volume coverage criteria comprises high definition road network mileage coverage ChdAnd comprehensive road network mileage coverage rate CMAnd traffic volume coverage rate CqThe key node coverage rate criterion comprises important site entrance and exit coverage rate CkpAccident multiple site coverage rate CapCongested road segment coverage rate CcpKey bridge coverage rate CbAnd key tunnel coverage rate CtThe matching efficiency criterion comprises the matching rate C of the signalized intersectionsigMatching rate with traffic flow detection Ctf(ii) a Wherein, the high definition road network mileage coverage rate ChdRoad section length M monitored by high-definition camerahdThe ratio of the total mileage of the road network to the mileage of the road network, and the mileage coverage rate C of the comprehensive road networkMFor all road traffic technical monitoring in the layout schemeSection length M capable of being monitoredmRatio to total mileage M of road network, traffic volume coverage rate CqTraffic Q monitored by all road traffic technology monitoring equipment in the layout schememRatio of total traffic Q to road network, entrance and exit coverage rate C of important placekpThe number N of the entrances and exits of the important places, which can be detected by all the road traffic technology monitoring equipment in the layout schememkpAnd the total number N of entrances and exits of important placeskpRatio of (1), accident-prone site coverage rate CapThe number N of accident multi-issue points which can be detected by all the road traffic technology monitoring equipment in the layout schememapAnd total number of accident multiple points NapRatio of (a), congested road section coverage rate CcpThe number N of the congested road sections which can be detected by all the road traffic technology monitoring equipment in the layout schememcpAnd the total number N of congested road sectionscpRatio of (1), key bridge coverage rate CbThe number N of key bridges which can be detected by all road traffic technology monitoring equipment in the layout schemembAnd the total number N of key bridgesbRatio of (1), key tunnel coverage rate CtThe number N of key tunnels which can be detected by all road traffic technology monitoring equipment in the layout schememtAnd the total number N of key tunnelstThe matching rate C of the intersection is controlled by the signalsigControlling the number N of intersections for the signals which can be monitored by all the road traffic technology monitoring equipment in the layout schememsigTotal number N of intersection with signal controlmRatio of (a), traffic flow detection matching rate CtfThe number N of the road sections which can be monitored by all the road traffic technology monitoring equipment in the layout schememtfAnd the total number N of the traffic flow detection road sectionstfThe ratio of (A) to (B);
wherein, the high definition road network mileage coverage rate ChdThe evaluation scale of (a) was as follows: when C is presenthdMore than or equal to 95 percent, good evaluation grade, when the ratio is more than 95 percent ChdMore than or equal to 80 percent, the evaluation grade is better, when the ratio is more than 80 percent ChdNot less than 60 percent, the evaluation grade is general, when C ishdLess than 60%, the evaluation grade is poor; high definition road network mileage coverage rate ChdAnd comprehensive road network mileage coverage rate CMTraffic volume coverage rate CqCoverage rate C of entrance/exit of important placekpAccident multiple site coverage rate CapCongested road segment coverage rate CcpKey bridge coverage rate CbAnd key tunnel coverage rate CtThe evaluation grades are the same;
signal control intersection matching rate CsigThe evaluation scale of (a) was as follows: when C is presentsigNot less than 90 percent, good evaluation grade, when the ratio is more than 90 percent CsigMore than or equal to 70 percent, the evaluation grade is better, and when the ratio is more than 70 percent, CsigNot less than 50 percent, the evaluation grade is general, when C issigLess than 50%, the evaluation grade is poor; signal control intersection matching rate CsigMatching rate with traffic flow detection CtfThe evaluation grades of (a) were the same.
3. The method for evaluating the layout scheme of the road traffic technology monitoring equipment according to claim 1, wherein the step 2 is specifically as follows:
for m schemes to be evaluated in a certain area, n evaluation indexes are selected from an evaluation index system according to the evaluation index data type provided by the area to construct an index matrix X, wherein X is (X is)ij)m×nWherein x isijJ-th evaluation index value representing the ith scheme to be evaluated, i is 1, …, m, j is 1, …, n, and j is an index value X in the j-th column of the index matrix XijForward orientation: (x)ij)+＝max(xij)-xijConverting the index matrix X into a standardized matrix Z, wherein Z is (Z)ij)m×n，
4. The method for evaluating the layout scheme of the road traffic technology monitoring equipment according to claim 1, wherein the step 3 is as follows:
according to the standardized matrix Z, calculating the proportion p of the ith scheme to be evaluated in the jth evaluation indexij，
zijThe element of the standardized matrix Z, m is the number of the schemes to be evaluated, the entropy value H of the jth evaluation indexjComprises the following steps:
entropy weight w of jth evaluation indexjComprises the following steps:
n is the number of evaluation indexes.
5. The method for evaluating the layout scheme of the road traffic technology monitoring equipment according to claim 1, wherein the step 4 is specifically as follows:
calculating a weighted normalization matrix R according to the entropy weight, wherein R is (R)ij)m×n，rij＝wj·zijM is the number of the schemes to be evaluated, n is the number of the evaluation indexes, wjIs the entropy weight, z, of the jth evaluation indexijAs elements of the normalized matrix Z;
finding the maximum value and the minimum value of the jth evaluation index in the weighted normalization matrix to form a virtual positive ideal solution
Sum negative ideal solution
Calculating the Euclidean distance between the ith scheme to be evaluated and the positive and negative ideal solutions:
thereby obtaining a comprehensive evaluation relative value C of the ith scheme to be evaluatedi，
And sequencing the comprehensive evaluation relative values of all the schemes to be evaluated from large to small to obtain the quality evaluation order of all the schemes to be evaluated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110393435.7A CN113191601B (en) | 2021-04-13 | 2021-04-13 | Road traffic technology monitoring equipment layout scheme evaluation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110393435.7A CN113191601B (en) | 2021-04-13 | 2021-04-13 | Road traffic technology monitoring equipment layout scheme evaluation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113191601A true CN113191601A (en) | 2021-07-30 |
| CN113191601B CN113191601B (en) | 2024-05-31 |
Family
ID=76975696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110393435.7A Active CN113191601B (en) | 2021-04-13 | 2021-04-13 | Road traffic technology monitoring equipment layout scheme evaluation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113191601B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114220265A (en) * | 2021-12-09 | 2022-03-22 | 中山大学 | Method and system for optimizing bayonet layout |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104780345A (en) * | 2014-11-13 | 2015-07-15 | 安徽四创电子股份有限公司 | Method for evaluating layout of monitory points of safe city based on GIS (Geographic Information System) |
| WO2016169290A1 (en) * | 2015-04-21 | 2016-10-27 | 华南理工大学 | Decision-making supporting system and method oriented towards emergency disposal of road traffic accidents |
| CN106652483A (en) * | 2017-03-06 | 2017-05-10 | 同济大学 | Method for arranging traffic information detection points in local highway network by utilizing detection device |
| CN108335253A (en) * | 2018-03-20 | 2018-07-27 | 淮阴工学院 | Greening Urban Road safe evaluation method based on entropy weight TOPSIS methods |
| US20200282503A1 (en) * | 2018-08-28 | 2020-09-10 | Dalian University Of Technology | Comprehensive performance evaluation method for cnc machine tools based on improved pull-off grade method |
| CN112329999A (en) * | 2020-10-26 | 2021-02-05 | 东南大学 | Method for optimizing layout of road traffic technology monitoring equipment |
-
2021
- 2021-04-13 CN CN202110393435.7A patent/CN113191601B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104780345A (en) * | 2014-11-13 | 2015-07-15 | 安徽四创电子股份有限公司 | Method for evaluating layout of monitory points of safe city based on GIS (Geographic Information System) |
| WO2016169290A1 (en) * | 2015-04-21 | 2016-10-27 | 华南理工大学 | Decision-making supporting system and method oriented towards emergency disposal of road traffic accidents |
| CN106652483A (en) * | 2017-03-06 | 2017-05-10 | 同济大学 | Method for arranging traffic information detection points in local highway network by utilizing detection device |
| CN108335253A (en) * | 2018-03-20 | 2018-07-27 | 淮阴工学院 | Greening Urban Road safe evaluation method based on entropy weight TOPSIS methods |
| US20200282503A1 (en) * | 2018-08-28 | 2020-09-10 | Dalian University Of Technology | Comprehensive performance evaluation method for cnc machine tools based on improved pull-off grade method |
| CN112329999A (en) * | 2020-10-26 | 2021-02-05 | 东南大学 | Method for optimizing layout of road traffic technology monitoring equipment |
Non-Patent Citations (1)
| Title |
|---|
| 闫欣欣;袁振洲;毛思捷;吴琳;: "基于熵权-TOPSIS模型的慢行交通与城市设计协调评价方法", 公路交通科技, no. 09, 15 September 2018 (2018-09-15) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114220265A (en) * | 2021-12-09 | 2022-03-22 | 中山大学 | Method and system for optimizing bayonet layout |
| CN114220265B (en) * | 2021-12-09 | 2023-01-24 | 中山大学 | Method and system for optimizing bayonet layout |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113191601B (en) | 2024-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108109382B (en) | Congestion point, congestion line and congestion area discovery method based on composite network | |
| CN104318758B (en) | Based on multi-level multimodal Public transport network planning method | |
| CN114550482B (en) | Navigation method based on low-carbon target and parking lot navigation method | |
| CN113053125B (en) | Parking lot library recommendation method based on feedforward LSTM model | |
| CN109460937B (en) | Process and method for evaluating connection level of slow traffic system around track station | |
| CN113269347B (en) | College express network node flow prediction method based on random forest | |
| CN115809378A (en) | Medical shortage area identification and layout optimization method based on mobile phone signaling data | |
| CN114511143A (en) | Urban rail transit network generation method based on grouping division | |
| CN112309119A (en) | Urban traffic system capacity analysis optimization method | |
| CN109325614A (en) | A kind of bus station's site selecting method based on GIS | |
| CN113191601B (en) | Road traffic technology monitoring equipment layout scheme evaluation method | |
| CN114842668A (en) | Multi-scene parking space guiding method based on analytic hierarchy process | |
| CN116911507A (en) | Urban block vitality evaluation method and storage medium based on space projection pursuit | |
| CN108876075A (en) | Urban Rail Transit Stations area preferably walkability evaluation method | |
| CN108564810B (en) | Parking space sharing system and method | |
| CN111429166A (en) | Electric vehicle charging demand spatial distribution prediction method based on maximum contour clustering | |
| Mali et al. | Enhanced routing in disaster management based on GIS | |
| CN113947245B (en) | Multi-passenger multi-driver ride sharing matching method and system based on order accumulation | |
| CN110610446A (en) | County town classification method based on two-step clustering thought | |
| CN115146840A (en) | Data-driven rail transit new line access passenger flow prediction method | |
| CN113240227B (en) | Parking management method based on Internet of things | |
| CN115034570A (en) | Urban road traffic flow overrun assessment method | |
| CN112434844B (en) | New opening and extension method of sorting wire net based on convex hull calculation and genetic algorithm | |
| CN114897213A (en) | Historical block public transportation reachability measuring and calculating method and optimization method | |
| CN113724487B (en) | Urban traffic system simulation analysis method for traffic strategy combination |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |