CN108335054A - A kind of sub-interchange facility efficiency evaluation method - Google Patents
A kind of sub-interchange facility efficiency evaluation method Download PDFInfo
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Abstract
The invention discloses a kind of sub-interchange facility efficiency evaluation methods, including：Transfer stop information acquiring step obtains transfer line of the transfer stop between different subway lines for collecting sub-interchange horizontal layout data；Transfer stop facility efficiency evaluation index calculates step, and index calculated value is obtained according to each index calculation formula；Evaluation index nondimensionalization step carries out nondimensionalization processing to indices, obtains the evaluation of estimate in same section to eliminate the influence that indices unit is different and its order of magnitude different band is next；Comprehensive evaluation value is calculated with evaluation criterion weight to judge the facility efficiency of the sub-interchange and propose reference proposition in transfer stop facility effectiveness synthesis evaluation procedure.The present invention provides set of system, the convenient computational methods of quantization for subway station facility efficiency evaluation, is suitable for the facility efficiency evaluation of all sub-interchanges.
Description
Technical field
The present invention relates to orbit traffic transfer efficient studies field more particularly to a kind of evaluation sub-interchange facility efficiency
Method.
Background technology
In recent years, with the continuous expansion of domestic main cities rail transportation operation scale, the constantly improve of road network interweaves
Road network form two lines and multi-thread transfer, the demand of sub-interchange is also increasing.Sub-interchange is that subway occurs
The main place of transfer behavior, it imitates subway network overall operation as " nerve center " in urban mass transit network
Can rate has vital influence, and whether design is reasonable, realize convenient, efficient, real transfer requirement of relaxing, it has also become ground
Critical issue needed to be considered in iron design.But China's urban rail transit construction cause is started late, currently due to rail traffic
The problems such as defect of line network planning, the inaccuracy of transfer passenger flow prediction, transfer stop design shortage standard, sub-interchange often without
Method plays maximum effect.
Occurred some at present and be directed to researchs of Transfer System, but all focus on plugging into circuit setting and other
Mode of transportation is connected and traffic system is planned etc., and also about Transfer Infrastructure efficiency evaluation research in sub-interchange
It is less, and Transfer Infrastructure efficiency influences the interchange efficiency of transfer stop, and then the operational efficiency of entire urban traffic network is influenced,
Significant impact is brought for the trip of vast civic.Become a problem for being badly in need of research to the efficiency evaluation of Transfer Infrastructure, in time
The Efficacy Profile of transfer stop inner facility is accurately grasped, effective data supporting can be provided for correlation operation, promoted
The promotion of transportation network operational efficiency.Currently, it is over the ground that the existing research about sub-interchange facility efficiency evaluation is also mostly
The evaluation of iron station individual facilities optimizes.Existing evaluation method includes mainly analytic hierarchy process (AHP), economic analysis method, fuzzy evaluation
Method, these evaluation methods compare dependence subjective judgement, and especially some evaluation indexes are difficult to quantify, and give the reality of metro operation company
Border operation brings very big difficulty.
Invention content
Goal of the invention：It quantization, is easily changed with defect, a kind of systematization of present invention proposition in view of the deficiencies of the prior art
Multiply station facility efficiency evaluation method, sub-interchange arrangement can be based on and field investigation data are completed to transfer stop facility efficiency
Evaluation.
Technical solution：In order to achieve the above object, a kind of sub-interchange facility efficiency evaluation method of the present invention, packet
Include following steps：
Information acquiring step：The information of sub-interchange is obtained, including determines transfer stop horizontal layout, different subway lines
Between transfer line；
Index calculates step：Index computation model is built, and facility efficiency evaluation index is calculated based on field investigation data,
Obtain each evaluation index calculated value；
Nondimensionalization step：Nondimensionalization processing is carried out to obtained each evaluation index calculated value, is obtained at nondimensionalization
Numerical value after reason；
Overall merit step：The synthesis that transfer stop facility efficiency is calculated based on index value after nondimensionalization obtained above is commented
Valence index.
Specifically, information acquiring step specifically includes following steps：
Step 11：From sub-interchange obtain the station station layer figure, and station layer figure on respectively to platform, subway concourse, help
Ladder, stair facility are numbered；
Step 12：The transfer line between different subway lines is determined according to station layer figure.
Index calculates step and specifically includes following steps：
Step 21：Transfer smooth degree T is calculated, which is used for reflecting that the smoothness of transfer, calculation formula are as follows：
Wherein, T is the sub-interchange peak hour to change to happy degree index；twi1It is peak hour sub-interchange i-th
Pedestrian's platform stand-by period (s) of transfer line；twi2It is pedestrian's subway concourse of i-th transfer line of peak hour sub-interchange
Stand-by period (s)；tiIt is that the pedestrian of i-th transfer line of peak hour sub-interchange is averaged the transfer time (s)；N is transfer
Streamline sum.
Step 22：Transfer psychological punishment distance L is calculated, which is used for reflecting the convenience of transfer, and computational methods are such as
Under：The transfer psychological punishment distance L of each transfer line is calculated firsti, wherein maximum value is then taken to be set as this transfer stop
Apply transfer psychological punishment range index the value L, wherein L of efficiency evaluationiCalculation formula it is as follows：
Li=Lsi×k
Wherein, LiIt is the transfer psychological punishment distance (m) of i-th transfer line of sub-interchange；LsiIt is sub-interchange
The actual range (m) of i-th transfer line；K be transfer coefficient, when have a floor height path difference and without escalator when or transfer away from
From be relatively far from riding instead of walk automatically facility when conversion coefficient take 1.2；When there is automatic facility, conversion coefficient takes 0.8.
Step 23：Facility ability saturation degree E is calculated, which is used for reflecting Transfer Infrastructure ability utilization power, calculate
Method is as follows：Calculate separately the facility ability saturation degree E that staircase, stair are respectively changed in transfer stopi, then it is maximized as this
The Transfer Infrastructure ability saturation degree index of evaluation.Wherein, EiCalculation formula it is as follows：
Wherein, EiIt is the ability saturation degree index of facility i；QiIt is the transfer passenger flow amount of peak hour Transfer Infrastructure i service；ρ
It is peak hour factor；NiIt is the handling capacity of Transfer Infrastructure i.
Step 24：Transfer Infrastructure capacity load equilibrium degree F is calculated, which is used for reflecting in entire transfer path that difference is set
The harmony that the ability of applying utilizes, calculation formula are shown below：
Wherein, F is that facility utilizes equilibrium degree；EiIt is the ability saturation degree of facility i；EavgIt is the average value of facility saturation degree；
N is Transfer Infrastructure number.
Step 25：The instantaneous density of stream of people G of platform is calculated, the index reflection platform is close in peak hour flow of the people maximum
Degree, computational methods are as follows：Calculate separately the instantaneous density of stream of people G of platform of different subway linesi, then it is maximized as this
The instantaneous density of stream of people calculated value of platform of secondary transfer stop facility efficiency rating.Wherein, GiCalculation formula it is as follows：
Wherein, GiIt is the instantaneous density of stream of people of i-th of platform；PiIt is instantaneous stream of people's total amount in the i platform peak hours； Si
It is the area of i platforms；λ is the effective area rate of i platforms, generally takes 0.8.
In order to exclude the influence that indices unit and order of magnitude difference bring evaluation, further to obtained above each
Item evaluation index carries out nondimensionalization processing.In order to make the simple and easy to do enhancing operability of evaluation procedure, the present invention use index
Hierarchical table method carries out nondimensionalization processing to evaluation index.According to the Pyatyi index hierarchical table of each evaluation index, with interpolation method
The exponential quantity for calculating each evaluation index obtains nondimensionalization treated evaluation index value.
Overall merit step specifically includes following steps：
Step 41：Calculation Estimation comprehensive index values R：
Wherein, R is the COMPREHENSIVE CALCULATING value of each evaluation index；biIt is exponential quantity of i-th of evaluation index after standardization；
wiIt is the relative weight value of i-th of evaluation index, can be obtained using analytic hierarchy process (AHP).
Step 42：Comprehensive evaluation result is provided to the facility efficiency of sub-interchange according to evaluation criterion, can also be provided
Corresponding optimization reference proposition.
Advantageous effect：The present invention can provide set of system for subway station facility efficiency evaluation, quantization, easily calculate
Method is suitable for the facility efficiency evaluation of all sub-interchanges.Its collecting method is simple, accurate, evaluation index
It chooses and considers human factor, facility factor, environmental factor and management factors comprehensively, the standardization foundation and index of evaluation index
There is weight general applicability, same city can repeatedly use, and simplify the complicated procedures of conventional facilities efficiency evaluation,
Improve the efficiency and reliability of transfer stop facility efficiency evaluation.Method using the present invention can be metro operation improved efficiency
Decision provides important data supporting and scientific and reasonable suggestion.
Description of the drawings
Fig. 1 is sub-interchange facility efficiency evaluation flow of the present invention；
Fig. 2 is according to certain the subway station hierarchical diagram and numbering example figure for doing inventive embodiments.
Specific implementation mode
Technical scheme of the present invention is described further below in conjunction with the accompanying drawings.
It is sub-interchange facility efficiency evaluation method flow diagram of the present invention, including subway transfer as shown in Figure 1
Information acquiring step, facility efficiency evaluation index calculating step, evaluation index nondimensionalization step, the transfer stop facility efficiency of standing are comprehensive
Close evaluation procedure.Wherein, sub-interchange information acquiring step is for collecting sub-interchange horizontal layout data, to obtain
Transfer line of the transfer stop between different subway lines；Transfer stop facility efficiency evaluation index calculates step structure index and calculates mould
Type, and index calculated value is obtained according to each index calculation formula；Evaluation index nondimensionalization step carries out indices immeasurable
Guiding principleization processing obtains the evaluation of estimate in same section to eliminate that indices units is different and its order of magnitude different band is come
It influences；Comprehensive evaluation value is calculated to judge the ground with evaluation criterion weight in transfer stop facility effectiveness synthesis evaluation procedure
The facility efficiency of iron transfer stop simultaneously proposes reference proposition.The specific mistake of each step is described in detail below by way of to the assessment of specific website
Journey.
Step 10, sub-interchange acquisition of information
Step 11：From sub-interchange obtain the station station layer figure, and station layer figure on respectively to platform, subway concourse, help
Ladder, stair facility number.The present embodiment obtains its station layer figure from Nanjing sub-interchange, and is numbered respectively to each facility,
As shown in Figure 2.
Step 12：The transfer line between different subway lines is determined according to station layer figure.The subway station that the present embodiment is chosen
The transfer between No. 2 lines and No. 3 lines can be carried out, transfer line is shown in Table 1：
1 transfer line table of table
| Serial number | Change to line name | Transfer line |
| 1 | No. 2 lines change to No. 3 lines | 3-platform of platform 2-staircase, 4-subway concourse, 1-staircase 3 |
| 2 | No. 2 lines change to No. 3 lines | 2-platform of platform 2-staircase, 4-subway concourse, 1-staircase 3 |
| 3 | No. 2 lines change to No. 3 lines | 1-platform of platform 2-staircase, 4-subway concourse, 1-staircase 3 |
| 4 | No. 3 lines change to No. 2 lines | 3-stair of platform, 1-platform 3 |
Step 20, facility efficiency evaluation index calculate
Step 21：Calculation Estimation index changes to smooth degree T, which is used for reflecting the smoothness of transfer.Its calculation formula
As follows：
Wherein, T is the sub-interchange peak hour to change to happy degree index；twi1It is peak hour sub-interchange i-th
Pedestrian's platform stand-by period (s) of transfer line；twi2It is pedestrian's subway concourse of i-th transfer line of peak hour sub-interchange
Stand-by period (s)；tiIt is that the pedestrian of i-th transfer line of peak hour sub-interchange is averaged the transfer time (s)；N is transfer
Streamline sum.
The stand-by period of each streamline and average transfer time can be obtained in the subway station on-site inspection, for convenience of table
It reaches, data inputting table 2：
2 each transfer line time statistical form of table
| Transfer line serial number | The platform stand-by period (s) | The subway concourse stand-by period (s) | The average transfer time (s) |
| 1 | 50 | 30 | 115 |
| 2 | 48 | 40 | 198 |
| 3 | 60 | 65 | 280 |
| 4 | 110 | 0 | 270 |
T=1-0.49=0.51 can be obtained according to transfer smooth degree index calculation formula.
Step 22：Calculation Estimation index changes to psychological punishment distance L, which is used for reflecting the convenience of transfer.It is counted
Calculation method is as follows：
Step 221：Calculate the transfer psychological punishment distance L of each transfer linei：
Li=Lsi×k
Wherein, LiIt is the transfer psychological punishment distance (m) of i-th transfer line of sub-interchange；LsiIt is sub-interchange
The actual range (m) of i-th transfer line；K be transfer coefficient, when have a floor height path difference and without escalator when or transfer away from
From be relatively far from riding instead of walk automatically facility when conversion coefficient take 1.2；When there is automatic facility, conversion coefficient takes 0.8.
Step 222：Determine evaluation index transfer psychological punishment distance L：Each streamline transfer that step 221 is calculated
Psychological punishment distance filling transfer psychological punishment takes wherein maximum value to be commented as this transfer stop facility efficiency in computational chart
The transfer psychological punishment range index value of valence.
According to the subway station factual survey it can be found that the k values of transfer line 1,2,3 take 0.8, the k values of streamline 4
Take 1.2.Result of calculation is shown in Table 3：
Table 3 changes to psychological punishment apart from computational chart
Maximum value therein, i.e. 150.6 meters of calculated values as evaluation index L are chosen in this evaluation.
Step 23：Calculation Estimation index facility ability saturation degree E, the index are used for reflecting that Transfer Infrastructure ability utilizes feelings
Condition.Its computational methods is as follows：
Step 231：Calculate separately the facility ability saturation degree E that staircase, stair are respectively changed in transfer stopi：
Wherein, EiIt is the ability saturation degree index of facility i；QiIt is the transfer passenger flow amount of peak hour Transfer Infrastructure i service；ρ
It is peak hour factor；NiIt is the handling capacity of Transfer Infrastructure i.
Step 232：Each Transfer Infrastructure ability saturation degree being calculated is inserted into Transfer Infrastructure ability saturation computation table
In, it is maximized the Transfer Infrastructure ability saturation degree index as this evaluation.
The essential information and transfer passenger flow amount of each Transfer Infrastructure staircase and stair, wherein staircase are investigated respectively in the subway station
4 and staircase 5 it is symmetrical, only need to count one of them.The peak hour factor of the subway station takes 0.8.Statistics result of calculation is shown in Table
4。
4 Transfer Infrastructure ability saturation computation table of table
| Facility name | Width | Facility ability (people/hour) | Transfer passenger flow amount (people/hour) | Saturation degree |
| Staircase 1 | 2.5 | 9250 | 3100 | 0.34 |
| Staircase 2 | 2.5 | 9500 | 4895 | 0.52 |
| Staircase 3 | 2.5 | 9800 | 5200 | 0.53 |
| Staircase 4 | 2.5 | 11520 | 13550 | 1.18 |
| Stair 1 | 3.6 | 14500 | 12980 | 0.90 |
Since the influence between Transfer Infrastructure has transitivity, this evaluation chooses maximum value 1.18 as the subway station
Facility saturation degree index calculated value.
Step 24：Calculation Estimation index Transfer Infrastructure capacity load equilibrium degree F, the index are used for reflecting entire transfer path
The harmony that middle difference facility ability utilizes.Its calculation formula is shown below：
Wherein, F is that facility utilizes equilibrium degree；EiIt is the ability saturation degree of facility i；EavgIt is the average value of facility saturation degree；
N is Transfer Infrastructure number.
According to the calculated value of step 23, facility ability load balancing degree F can be obtained using load balancing degree calculation formula
=0.44.
Step 25：The instantaneous density of stream of people G of Calculation Estimation index platform, the index reflection platform peak hour flow of the people most
Density when big.Its computational methods is as follows：
Step 251：The instantaneous density of stream of people G of platform of different subway lines is calculated separately firsti, calculation formula is as follows：
Wherein, GiIt is the instantaneous density of stream of people of i-th of platform；PiIt is instantaneous stream of people's total amount in the i platform peak hours； Si
It is the area of i platforms；λ is the effective area rate of i platforms, generally takes 0.8.
Step 252：The instantaneous density of stream of people filling instantaneous density of stream of people computational chart of platform of each platform that above formula is calculated
In, it is maximized as the instantaneous density of stream of people calculated value of the platform of this transfer stop facility efficiency rating.
By measuring, No. 2 line platforms of the subway station are about 95 meters, 10.8 meters wide；No. 3 108 meters of line platforms length, it is wide by 11.4
Rice, statistical data and result of calculation are shown in Table 5.
The instantaneous density of stream of people computational chart of 5 platform of table
| Platform title | Real area (m2) | Effective area rate (m2) | Instantaneous flow of the people (people/m2) | Instantaneous density of stream of people |
| Platform 2 | 1026 | 820.8 | 755 | 0.92 |
| Platform 3 | 1231.2 | 984.96 | 768 | 0.78 |
Choose the instantaneous density of stream of people G index calculated values of platform that maximum value 0.92 therein is evaluated as this.
Step 30, evaluation index nondimensionalization
Step 31：To exclude the influence that indices unit and order of magnitude difference bring evaluation, while making evaluation procedure
Simple and easy to do enhancing operability, the present invention carry out nondimensionalization processing using index hierarchical table method to evaluation index.Each evaluation
The index hierarchical table of index is respectively as shown in table 6,7,8,9,10：
Table 6 changes to smooth degree index hierarchical table
| Evaluation criterion grade | One | Two | Three | Four | Five |
| Change to smooth degree degree | >0.9 | 0.9-0.8 | 0.8-0.7 | 0.7-0.6 | ＜ 0.6 |
| Index | [90-100] | [80-90) | [70-80) | [60-70) | [0-60) |
Table 7 changes to psychological punishment range index hierarchical table
| Evaluation criterion grade | One | Two | Three | Four | Five |
| Transfer Infrastructure area per capita | ＜ 50 | 50-100 | 100-150 | 150-200 | 200-500 |
| Index | [90-100] | [80-90) | [70-80) | [60-70) | [0-60) |
8 facility ability saturation exponent hierarchical table of table
9 facility ability load balancing degree index hierarchical table of table
| Evaluation criterion grade | One | Two | Three | Four | Five |
| Average transfer times | >0.8 | 0.8-0.7 | 0.7-0.6 | 0.6-0.4 | ＜ 0.4 |
| Index | [90-100] | [80-90) | [70-80) | [60-70) | [0-60) |
The instantaneous density of stream of people index hierarchical table of 10 platform of table
| Evaluation criterion grade | One | Two | Three | Four | Five |
| Average transfer times | ＜ 0.3 | 0.3-0.5 | 0.5-0.65 | 0.65-0.8 | 0.8-1.5 |
| Index | [90-100] | [80-90) | [70-80) | [60-70) | [0-60) |
Step 32：Exponential quantity after each evaluation index calculated value being calculated and standardization is inserted into following table, is tied
Fruit：
11 evaluation index result of calculation table of table
Step 40, the evaluation of sub-interchange facility effectiveness synthesis
Step 41：Evaluation index integrated value R is calculated：
Wherein, R is the COMPREHENSIVE CALCULATING value of each evaluation index；biIt is exponential quantity of i-th of evaluation index after standardization；
wiIt is the relative weight value of i-th of evaluation index.Weighted value is added to embody weight of the index in all indexs
Degree is wanted, because of the actual conditions according to each of each department circuit and each subway station, work of above-mentioned five indexs to evaluation
With being not of equal importance from the point of view of evaluation goal.The determination method of weight includes analytic hierarchy process (AHP), Principal Component Analysis, entropy
Value method etc..In the present embodiment the weighted value w of each evaluation index of the subway station is obtained with analytic hierarchy process (AHP)iBe 0.31 respectively,
0.31、0.20、0.07、0.16.It should be noted that the value can be adapted for all subways of areal after calculating
Transfer stop.Step 30 the final result is substituted into the formula of step 41, then
R=0.31 × 51+0.31 × 70+0.20 × 38.4+0.07 × 54+0.16 × 50=56.97
Step 42：Sub-interchange facility effectiveness synthesis is evaluated：Based on obtained evaluation index integrated value, index is compareed
Evaluation criterion table carries out overall merit to the facility efficiency of sub-interchange and provides reference proposition.Index is commented in the present embodiment
Valence standard scale is as shown in table 12.
The evaluation criterion of 12 index of table
| Index value | 0-40 | 40-60 | 60-70 | 70-80 | 80-100 |
| Comment | It is low | It is relatively low | Generally | It is higher | It is very high |
The comprehensive evaluation value 56.97 being calculated according to step 41, with reference to evaluation criterion, we can obtain in embodiment
The lower conclusion of Transfer Infrastructure efficiency for the sub-interchange chosen, it is difficult to the effect of sub-interchange is played well, it is high
The peak phase changes to congestion.And the morning peak transfer satisfaction scene questionnaire tune of the subway station is carried out in the sundry item of applicant
It looks into, very satisfied, satisfied passenger's ratio is less than 50%, illustrates that the evaluation method of the present invention is accurately and effectively, to meet reality
Situation has replicability.In the present invention, according to the result of calculation of each index can be found that the happy degree of transfer, facility saturation degree,
The instantaneous density of stream of people of load of utility equilibrium degree, platform is relatively low, and especially facility ability saturation degree is too low.For lower finger
Mark can propose to optimize reference proposition accordingly, for example, the Transfer Infrastructures such as transformation staircase, increase facilities services ability；Increase new
Transferring passage, shunting alleviates the passenger flow pressure in existing channel；Peak period guides work in subway platform enhancing passenger flow, accelerates
Passenger flow evacuation etc..
Claims (9)
1. a kind of sub-interchange facility efficiency evaluation method, which is characterized in that include the following steps：
Information acquiring step：The information of sub-interchange is obtained, including is determined between transfer stop horizontal layout, different subway lines
Transfer line；
Index calculates step：Index computation model is built, facility efficiency evaluation index is calculated based on field investigation data, is obtained each
Evaluation index calculated value；
Nondimensionalization step：Nondimensionalization processing is carried out to obtained each evaluation index calculated value, after obtaining nondimensionalization processing
Numerical value；
Overall merit step：Comprehensive evaluation value is calculated based on index value after nondimensionalization obtained above, provides transfer stop
The comprehensive evaluation result of facility efficiency.
2. sub-interchange facility efficiency evaluation method according to claim 1, which is characterized in that described information obtains step
Suddenly include：
Step 11：The station layer figure at the station is obtained from sub-interchange, and respectively to platform, subway concourse, staircase, building on the floor figure of station
Terraced facility is numbered；
Step 12：The transfer line between different subway lines is determined according to station layer figure.
3. sub-interchange facility efficiency evaluation method according to claim 1, which is characterized in that the index calculates step
The evaluation index obtained in rapid includes transfer smooth degree T, facility ability saturation degree E, Transfer Infrastructure capacity load equilibrium degree F, stands
The instantaneous density of stream of people G of platform.
4. sub-interchange facility efficiency evaluation method according to claim 3, which is characterized in that the transfer smooth degree
The calculation formula of T is as follows：
Wherein, T is the sub-interchange peak hour to change to happy degree index；twi1It is i-th transfer of peak hour sub-interchange
Pedestrian's platform stand-by period (s) of streamline；twi2It is pedestrian's subway concourse waiting of i-th transfer line of peak hour sub-interchange
Time (s)；tiIt is that the pedestrian of i-th transfer line of peak hour sub-interchange is averaged the transfer time (s)；N is transfer line
Sum.
5. sub-interchange facility efficiency evaluation method according to claim 3, which is characterized in that the facility ability is full
It is as follows with the computational methods of degree E：It calculates separately transfer stop and respectively changes to staircase, stair facility ability saturation degree Ei, then take maximum
It is worth the Transfer Infrastructure ability saturation degree index as this evaluation, wherein EiCalculation formula it is as follows：
Wherein, EiIt is the ability saturation degree index of facility i；QiIt is the transfer passenger flow amount of peak hour Transfer Infrastructure i service；ρ is high
Peak hour coefficient；NiIt is the handling capacity of Transfer Infrastructure i.
6. sub-interchange facility efficiency evaluation method according to claim 3, which is characterized in that the Transfer Infrastructure energy
The calculation formula of power load equilibrium degree F is as follows：
Wherein, F is that facility utilizes equilibrium degree；EiIt is the ability saturation degree of facility i；EavgIt is the average value of facility saturation degree；N is to change
Multiply facility number.
7. sub-interchange facility efficiency evaluation method according to claim 3, which is characterized in that the instantaneous people of platform
The computational methods of current density G are as follows：Calculate separately the instantaneous density of stream of people G of platform of different subway linesi, then it is maximized work
For the instantaneous density of stream of people calculated value of platform of this transfer stop facility efficiency rating, wherein GiCalculation formula it is as follows：
Wherein, GiIt is the instantaneous density of stream of people of i-th of platform；PiIt is instantaneous stream of people's total amount in the i platform peak hours；SiIt is the stations i
The area of platform；λ is the effective area rate of i platforms.
8. sub-interchange facility efficiency evaluation method according to claim 1, which is characterized in that the nondimensionalization step
Suddenly nondimensionalization processing is carried out using index hierarchical table method, processing procedure includes：The Pyatyi for obtaining each evaluation index first refers to
Number hierarchical tables, then use the exponential quantity of each evaluation index of interpolation calculation, as nondimensionalization treated evaluation index value.
9. sub-interchange facility efficiency evaluation method according to claim 1, which is characterized in that the overall merit step
Suddenly include the following steps：
Step 41：Calculation Estimation comprehensive index values R：
Wherein, R is the COMPREHENSIVE CALCULATING value of each evaluation index；biIt is exponential quantity of i-th of evaluation index after standardization；wiIt is
The relative weight value of i-th of evaluation index, weighted value are calculated using analytic hierarchy process (AHP) method；
Step 42：Comprehensive evaluation result is provided to the facility efficiency of sub-interchange according to the evaluation criterion of setting.
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