CN108335253A - Greening Urban Road safe evaluation method based on entropy weight TOPSIS methods - Google Patents
Greening Urban Road safe evaluation method based on entropy weight TOPSIS methods Download PDFInfo
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Abstract
The invention discloses a kind of Greening Urban Road safe evaluation method based on entropy weight TOPSIS methods, this method uses the following steps：First, consider the factors such as people, vehicle, road, environment, Greening Urban Road Safety Assessment System is established in terms of antiglare effect, sight sighting distance, driving buffering effect, driver psychology effect and intrusion road conditions five；Secondly, the weight of each evaluation index is determined using entropy assessment, reflects the raw information of index；Finally, in conjunction with TOPSIS method model foundation Model for Safety Evaluation, relative proximity value reflected appraisal result is calculated.Compared with prior art, The present invention reduces evaluation rules excessively, evaluates the negative effect to evaluation result such as subjective, improves the accuracy of roadside greening safety evaluation.
Description
Technical field
The present invention relates to Greening Urban Road Safety Evaluation Technology fields, more particularly to the city based on entropy weight TOPSIS methods
Roadside greening safe evaluation method.
Background technology
Component part of the roadside greening as urban road construction, is increasingly valued by people, roadside greening has
The functions such as the beautification of bad border, noise-reducing and dustproof.However in recent years, since roadside greening designs the traffic safety problem of improper initiation increasingly
Prominent, rule is particularly important roadside greening safe evaluation method really.Roadside greening evaluation is a more complicated mistake
Journey, currently used roadside greening evaluation method is mainly artificial evaluation assessment and analytic hierarchy process (AHP), by engaging related field
Expert gives a mark to evaluation object, to obtain evaluation result, but is primarily present following defect：Evaluation procedure subjectivity mistake
By force, excessively cumbersome, evaluation rule is excessive, and evaluation index is single, and evaluation result precision is too low, and evaluation method lack science according to
According to.
Therefore there is an urgent need for a kind of evaluation indexes comprehensive, evaluation procedure science, the higher roadside greening safety evaluation of result precision
Method.
Invention content
Goal of the invention：The object of the present invention is to provide a kind of Greening Urban Road safety evaluations based on entropy weight TOPSIS methods
Method, evaluation rule is excessive to reduce, and evaluates subjective equal negative effect to evaluation result, improves roadside greening peace
The accuracy evaluated entirely.
Technical solution：Based on the Greening Urban Road safe evaluation method of entropy weight TOPSIS methods, include the following steps：
(1) Greening Urban Road Safety Assessment System is established；
(2) evaluation criterion weight is determined using entropy assessment；
(3) it uses TOPSIS methods to calculate relative proximity value, obtains evaluation result.
Step (1) includes the following steps：
(11) Greening Urban Road Safety Influence Factors are analyzed；
(12) evaluation index is built；
(13) evaluation index standards of grading table is determined.
In step (12), from antiglare effect, sight sighting distance, driving buffering effect, driver psychology effect and intrusion road
Five aspects of situation build evaluation index.
In step (13), using expert graded and actual value is measured, determines evaluation index standards of grading table.
Step (2) includes the following steps：
(21) it uses entropy assessment that weight is set, obtains primary data matrix A；
(22) matrix A is standardized；
(23) weight of each index in the matrix after standardization is found out.
Step (3) includes the following steps：
(31) matrix A is standardized, constructs weighted normal matrix B；
(32) positive ideal solution and minus ideal result are determined；
(33) each evaluation object index value is calculated at a distance from positive ideal solution and minus ideal result；
(34) the relative proximity value of each evaluation object index value and positive ideal solution and minus ideal result is calculated.
Operation principle：The present invention is using based on entropy weight similarity to ideal solution sequence TOPSIS (Technique for
Order Preference by Similarity to an Ideal Solution) method Greening Urban Road safety evaluation
Method is built in terms of antiglare effect, sight sighting distance, driving buffering effect, driver psychology effect and intrusion road conditions five
Greening Urban Road Safety Assessment System is found.Using expert graded and actual value is measured, determines evaluation index standards of grading
Table；The weight of each evaluation index is determined using entropy assessment, utmostly reflects the raw information of index；In conjunction with TOPSIS method models
Model for Safety Evaluation is established, relative proximity value reflected appraisal result is calculated.The present invention reduces evaluation rules, and excessive, evaluation is led
The property seen waits more by force the negative effect to evaluation result, improves the accuracy of roadside greening safety evaluation.
Advantageous effect：Compared with prior art, the present invention has the following advantages：(1) evaluation index standards of grading are determined,
It ensure that the comprehensive and scientific of roadside greening safety evaluation；(2) raw information for reflecting index, to determine roadside greening
The weight of safety evaluation index provides foundation；(3) present invention combines TOPSIS method model foundation Model for Safety Evaluation, calculates opposite
Proximity value reflected appraisal as a result, the negative effect for reducing that evaluation rule is excessive, evaluation is subjective etc. to evaluation result,
Improve the accuracy of roadside greening safety evaluation.
Description of the drawings
Fig. 1 is Greening Urban Road safe evaluation method flow chart；
Fig. 2 is Greening Urban Road Safety Assessment System figure.
Specific implementation mode
As shown in Figure 1, Greening Urban Road safe evaluation method method includes the following steps：
(1) it establishes roadside greening Safety Assessment System, step (1) and includes the following steps：
(11) Greening Urban Road Safety Influence Factors are analyzed；
(12) evaluation index is built；
(13) evaluation index standards of grading table is determined.
Influence of the Greening Urban Road to traffic safety has been dissected in step (1), has analyzed each problem from many aspects
The origin cause of formation considers the factors such as people, vehicle, road, environment, from antiglare effect, sight sighting distance, driving buffering effect, driver psychology effect
Greening Urban Road Safety Assessment System is established with five aspects of intrusion road conditions, Safety Assessment System figure is as shown in Figure 2.
Using expert graded and actual value is measured, evaluation index standards of grading table is determined, is specifically shown in Table 1, wherein C1To C18With in Fig. 2
C1To C18It corresponds.
1 evaluation index standards of grading of table
(2) evaluation criterion weight is determined using entropy assessment.According to step (1) establish roadside greening Safety Assessment System,
It gives a mark to each evaluation index with expert graded, roadside greening evaluation primary data is obtained, using entropy assessment, to primary data
Standardize, obtains the weight of each evaluation index.Step (2) specifically includes following steps：
(21) use entropy assessment that weight is set, it is assumed that the road travel permit number of needs assessment is n, and the index of evaluation is m, to every
Each index of road is quantified, it is hereby achieved that the primary data matrix A of a n × m：
(22) matrix is standardized, each row of matrix are denoted as Ai, matrix each element is denoted as b after standardizationij, mark
The formula of standardization is as follows：
(23) according to the value of normalized matrix, the feature proportion c each evaluated under each index to the index is calculatedij, from
And find out the entropy E of the indexj, and then find out the weights omega of this indexj, specific formula for calculation is as follows：
(3) relative proximity value reflected appraisal is calculated as a result, step (3) specifically comprises the following steps by TOPSIS methods：
(31) matrix A is standardized, each element becomes y in matrix after standardizationij, utilize each index acquired
Weight, construct weighted normal matrix B, specific formula for calculation is as follows：
(32) positive ideal solution and minus ideal result are determined, each value of matrix B is denoted as Bij, BijIt is bigger, then it represents that evaluation
It is better, positive ideal solution is denoted as B+, minus ideal result is denoted as B-, then：
(33) each evaluation object index value is calculated at a distance from for positive ideal solution and minus ideal result：
(34) the relative proximity value L of each evaluation object index value and positive ideal solution and minus ideal result is calculatedi, it is connected to each other
Recency calculation formula is as follows：
The size being relatively close to by comparing, judgement roadside greening safety evaluation is as a result, Li∈ [0,1], relative proximities
It is higher, then it represents that roadside greening degree of safety is higher.
What the present embodiment was chosen is certain incity Greening Urban Road, has chosen section a, section b, section c, section d, road
Section e and section f carries out roadside greening safety evaluation, verifies the feasibility of evaluation model as research object.According to each index pair
The roadside greening on six roads is given a mark, and obtained initial evaluation data are as shown in table 2.
Primary data is evaluated in 2 roadside greening of table
Standardize to primary data, the weight of each index is acquired with entropy assessment, obtained data are as shown in table 3.
3 roadside greening safety evaluation index weight of table
After each weight is determined, in conjunction with TOPSIS method evaluation models, generalized is returned to primary data, constructs weighted normal square
Battle array, the results are shown in Table 4.
4 weighted normal matrix of table
According to weighted normal matrix, the relative proximities of each evaluation object index value and ideal solution are calculated, as a result such as 5 institute of table
Show.
5 roadside greening safety evaluation result of table
The relative proximities of each roadside greening safety evaluation obtained according to table 5 can be seen that the relative proximities of section e
Highest illustrates its roadside greening safety evaluation highest, and section a, section b, section c, section f greening safety evaluation are preferable, section d
Safety evaluation is relatively low, and antiglare effect to Road Transportation Safety Influence maximum, take second place, anti-dazzle by sight sighting distance it can be seen from weight
Effect mainly determines by the characteristic of separation greenbelt, sight sighting distance mainly by planting spacing, block facility situation etc. because
The influence of element, therefore, the main reason for section d safety evaluations are relatively low lack greenbelt for the road and block facility phenomenon
Seriously, there are larger traffic safety hidden danger.
Claims (6)
1. a kind of Greening Urban Road safe evaluation method based on entropy weight TOPSIS methods, it is characterised in that：Include the following steps：
(1) Greening Urban Road Safety Assessment System is established；
(2) evaluation criterion weight is determined using entropy assessment；
(3) it uses TOPSIS methods to calculate relative proximity value, obtains evaluation result.
2. the Greening Urban Road safe evaluation method according to claim 1 based on entropy weight TOPSIS methods, feature exist
In：Step (1) includes the following steps：
(11) Greening Urban Road Safety Influence Factors are analyzed；
(12) evaluation index is built；
(13) evaluation index standards of grading table is determined.
3. the Greening Urban Road safe evaluation method according to claim 2 based on entropy weight TOPSIS methods, feature exist
In：In step (12), from antiglare effect, sight sighting distance, driving buffering effect, driver psychology effect and intrusion road conditions five
A aspect builds evaluation index.
4. the Greening Urban Road safe evaluation method according to claim 2 based on entropy weight TOPSIS methods, feature exist
In：In step (13), using expert graded and actual value is measured, determines evaluation index standards of grading table.
5. the Greening Urban Road safe evaluation method according to claim 1 based on entropy weight TOPSIS methods, feature exist
In：Step includes the following steps in (2)：
(21) it uses entropy assessment that weight is set, obtains primary data matrix A；
(22) matrix A is standardized；
(23) weight of each index in the matrix after standardization is found out.
6. the Greening Urban Road safe evaluation method according to claim 1 based on entropy weight TOPSIS methods, feature exist
In：Step includes the following steps in (3)：
(31) matrix A is standardized, constructs weighted normal matrix B；
(32) positive ideal solution and minus ideal result are determined；
(33) each evaluation object index value is calculated at a distance from positive ideal solution and minus ideal result；
(34) the relative proximity value of each evaluation object index value and positive ideal solution and minus ideal result is calculated.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109242810A (en) * | 2018-09-14 | 2019-01-18 | 南京林业大学 | A kind of City expending remote sensing monitoring and cities and towns quality evaluating method |
| CN109447446A (en) * | 2018-10-19 | 2019-03-08 | 温州大学 | A kind of valve products assembling quality Detection task analysis method based on entropy weight TOPSIS |
| CN110472847A (en) * | 2019-07-31 | 2019-11-19 | 武汉科技大学 | A kind of rocket bay section process Environmental Resource Assessment method based on improvement Combining weights-TOPSIS method |
| CN111080158A (en) * | 2019-12-26 | 2020-04-28 | 安徽揣菲克科技有限公司 | Urban intersection traffic danger index evaluation method based on composite weight |
| CN113191601A (en) * | 2021-04-13 | 2021-07-30 | 东南大学 | Method for evaluating layout scheme of road traffic technology monitoring equipment |
| CN113592246A (en) * | 2021-07-05 | 2021-11-02 | 中冶南方城市建设工程技术有限公司 | PCA-TOPSIS model-based public traffic line network evaluation method in road construction period |
| CN113867536A (en) * | 2021-10-12 | 2021-12-31 | 浙江数智交院科技股份有限公司 | Interaction mode determination method, data acquisition method and device and electronic equipment |
| CN113947281A (en) * | 2021-09-09 | 2022-01-18 | 西华大学 | Urban rail transit equipment manufacturing industry cluster competitiveness evaluation method |
| CN113191601B (en) * | 2021-04-13 | 2024-05-31 | 东南大学 | Road traffic technology monitoring equipment layout scheme evaluation method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109242810A (en) * | 2018-09-14 | 2019-01-18 | 南京林业大学 | A kind of City expending remote sensing monitoring and cities and towns quality evaluating method |
| CN109447446A (en) * | 2018-10-19 | 2019-03-08 | 温州大学 | A kind of valve products assembling quality Detection task analysis method based on entropy weight TOPSIS |
| CN110472847A (en) * | 2019-07-31 | 2019-11-19 | 武汉科技大学 | A kind of rocket bay section process Environmental Resource Assessment method based on improvement Combining weights-TOPSIS method |
| CN110472847B (en) * | 2019-07-31 | 2023-01-13 | 武汉科技大学 | Rocket cabin processing process resource environment evaluation method based on improved combination weight-TOPSIS method |
| CN111080158A (en) * | 2019-12-26 | 2020-04-28 | 安徽揣菲克科技有限公司 | Urban intersection traffic danger index evaluation method based on composite weight |
| CN113191601A (en) * | 2021-04-13 | 2021-07-30 | 东南大学 | Method for evaluating layout scheme of road traffic technology monitoring equipment |
| CN113191601B (en) * | 2021-04-13 | 2024-05-31 | 东南大学 | Road traffic technology monitoring equipment layout scheme evaluation method |
| CN113592246A (en) * | 2021-07-05 | 2021-11-02 | 中冶南方城市建设工程技术有限公司 | PCA-TOPSIS model-based public traffic line network evaluation method in road construction period |
| CN113592246B (en) * | 2021-07-05 | 2024-04-19 | 中冶南方城市建设工程技术有限公司 | PCA-TOPSIS model-based road construction period bus network evaluation method |
| CN113947281A (en) * | 2021-09-09 | 2022-01-18 | 西华大学 | Urban rail transit equipment manufacturing industry cluster competitiveness evaluation method |
| CN113867536A (en) * | 2021-10-12 | 2021-12-31 | 浙江数智交院科技股份有限公司 | Interaction mode determination method, data acquisition method and device and electronic equipment |
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Application publication date: 20180727 |