CN107392438A - A kind of determination system and method for public transport facility index - Google Patents
A kind of determination system and method for public transport facility index Download PDFInfo
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Abstract
The present invention discloses a kind of determination system of public transport facility index, including：Data acquisition module, the public transport data in place to be assessed are covered for obtaining；Coverage determining module, for the quantity of the website included based on every public transport line, determine the public transport line coverage in place to be assessed；Arrival degree determining module, for the quantity based on the website that can be reached from place to be assessed by least one preset time period, determine the public transport line arrival degree in place to be assessed；Index determining module, for based on the preset function relation between public transport line coverage, public transport line arrival degree and public transport line coverage and public transport line arrival degree, determining the traffic convenience index in place to be assessed.The present invention substantially envisages the coverage and arrivals degree of the public transport line in place to be assessed so that it is determined that traffic convenience index is more objective and degree of accuracy height.
Description
Technical field
The present invention relates to Data Mining, more particularly to a kind of determination system and method for public transport facility index.
Background technology
In reality, people often only focus on the geographical position in the place when whether the public transport for evaluating certain place facilitates
Put, such as the intown distance of the distance location, if close to subway station etc..But this judgement based on intuition not with
Actual conditions are consistent, for example remote place may have a plurality of public transport line to pass through, in that context it may be convenient to reach city
All directions；A certain position can be reached in a short time by taking bus rapid transit or subway, perhaps than apart from the position
Place that is relatively near but needing multiple traffic to plug into has more traffic convenience.
Therefore, if judging the traffic convenience in the place with the geographical position residing for certain place merely, can cause to sentence
The inaccuracy of disconnected result.
The content of the invention
For above-mentioned technical problem, the present invention provides a kind of public transport facility index for being capable of the given place of accurate judgement
Determination system and method.
One embodiment of the invention provides a kind of determination system of public transport facility index, including：Data acquisition module, use
In the public transport data for obtaining covering place to be assessed；Wherein, the public transport data include：Public transport line, with
And the position of website that public transport line includes；Coverage determining module, for what is included based on every public transport line
The quantity of website, determine the public transport line coverage in the place to be assessed；Arrival degree determining module, for based on process
The quantity for the website that at least one preset time period can reach from the place to be assessed, determine the public affairs in the place to be assessed
Traffic route arrival degree altogether；Index determining module, for based on the public transport line coverage, the public transport line
Preset function relation between arrival degree and public transport line coverage and public transport line arrival degree, it is determined that described
The traffic convenience index in place to be assessed.
Alternatively, in addition to：Region division module；The region division module, net is carried out to predeterminable area for performing
The pre-treatment step of lattice division：Predeterminable area is carried out mesh generation by the grid cell based on default size and shape, is obtained more
Individual grid cell, and adjacent grid cell boundary overlaps；Wherein, the place to be assessed is located at the predeterminable area.
Alternatively, in addition to：Position determination module；The position determination module, for for every public transport line,
Position relationship between the website and each grid cell that are included according to the public transport line, determines that the public transport line includes
The grid cell that is located at respectively of website；The coverage determining module, specifically for each bar public transport line is covered respectively
The total number of the unduplicated grid cell of lid is defined as the public transport line coverage in the place to be assessed.
Alternatively, the coverage determining module, it is additionally operable to determine each public traffic line in the position determination module
After the grid cell that the website that road includes is located at respectively, for two adjacent sites institutes in any public transport line be present
The grid cell being located at differs and non-conterminous situation, determines in any public transport line between two adjacent sites
Part circuit；The position determination module, it is additionally operable between the point midway based on the part circuit and each grid cell
Position relationship, determine the grid cell that the point midway is located at；And the grid cell of the determination is defined as the public transport
The grid cell of circuit covering.
Alternatively, the position determination module, it is additionally operable to determine the place to be assessed in the arrival degree determining module
Public transport line arrival degree before, according to the position relationship between the position in the place to be assessed and each grid cell,
Determine the grid cell that the place to be assessed is located at；The arrival degree determining module, specifically for at least one pre-
If each preset time period in the period, it is determined that by the preset time period, treated by each bar public transit route from described
The grid cell that the website that assessing the grid cell that place is located at can reach is located at；At least one preset time will be passed through
The total number for the grid cell that section can reach is defined as the public transport line arrival degree in the place to be assessed.
Alternatively, the region division module, specifically for using the center of the predeterminable area as in grid cell
The heart, the size generation n-shaped grid cell based on the grid cell, and it is used as central gridding unit；By the central network
Lattice unit performs following partiting step as newly-generated grid cell：Newly-generated grid cell is formed into each of region
Respectively as a line circle of the grid cell adjacent with the region, corresponding to propagation direction to the border and continuing division has on border
The n-shaped grid cell of default size；Using the grid cell of this division as newly-generated grid cell, institute is performed again
Partiting step is stated, until the predeterminable area is fully completed the division of grid cell.
Alternatively, the position determination module, specifically for being closed according to the position between any place and each grid cell
System, determines the grid cell that any place is located in the following way：Calculate geographical coordinate corresponding to any place with
The distance between centre coordinate of each grid cell；By the affiliated grid of centre coordinate that distance between any place is minimum
Unit, it is defined as the grid cell that any place is located at.
Alternatively, the index determining module, specifically for determining the public transport line coverage and described public
Weighted value corresponding to traffic route arrival degree difference；The public transport line coverage and the public transport line are reached
Degree is weighted the traffic convenience index that summation obtains and value is defined as the place to be assessed.
Another embodiment of the present invention provides a kind of determination method of public transport facility index, comprises the following steps：Obtain
Cover the public transport data in place to be assessed；Wherein, the public transport data include：Public transport line, and it is public
The position for the website that traffic route includes；The quantity of the website included based on every public transport line, determine described to be assessed
The public transport line coverage in place；Based on what can be reached from the place to be assessed by least one preset time period
The quantity of website, determine the public transport line arrival degree in the place to be assessed；Based on the public transport line coverage,
Default letter between the public transport line arrival degree and public transport line coverage and public transport line arrival degree
Number relation, determine the traffic convenience index in the place to be assessed.
Alternatively, in addition to predeterminable area the pre-treatment step of mesh generation is carried out：Based on default size and shape
Predeterminable area is carried out mesh generation by grid cell, obtains multiple grid cells, and adjacent grid cell boundary overlaps；Its
In, the place to be assessed is located at the predeterminable area.
Compared with prior art, the determination system of public transport facility index provided by the invention, covering is obtained first and is treated
The public transport data of the position for including the website that public transport line and public transport line include in place are assessed, then base
In the quantity for the website that every public transport line includes, the public transport line coverage in the place to be assessed is determined, with
And the quantity based on the website that can be reached from the place to be assessed by least one preset time period, determine described to be evaluated
Estimate the public transport line arrival degree in place, be finally based on the public transport line coverage, the public transport line arrives
Preset function relation up to degree and between public transport line coverage and public transport line arrival degree, it is determined that described treat
The traffic convenience index in place is assessed, the traffic convenience index determined in this way is to be assessed due to substantially envisaging
The coverage and arrivals degree of the public transport line of point so that it is determined that traffic convenience index is more objective and degree of accuracy height.
Brief description of the drawings
Fig. 1 a are the structural representation for the determination system that the public transport that one embodiment of the invention provides facilitates index；
Fig. 1 b are the structural representation for the determination system that the public transport that another embodiment of the present invention provides facilitates index；
Fig. 2 is that public transport provided in an embodiment of the present invention facilitates the determination system of index to predeterminable area progress grid stroke
The schematic diagram divided；
Fig. 3 is that the determination system of public transport provided in an embodiment of the present invention facility index determines the public of place to be assessed
One of schematic diagram of traffic route coverage and public transport line degree of reaching；
Fig. 4 is that the determination system of public transport provided in an embodiment of the present invention facility index determines the public of place to be assessed
The two of the schematic diagram of traffic route coverage and public transport line degree of reaching；
Fig. 5 a are the schematic flow sheet for the determination method that the public transport that one embodiment of the invention provides facilitates index；
Fig. 5 b are the schematic flow sheet for the determination method that the public transport that another embodiment of the present invention provides facilitates index.
Embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
Fig. 1 a are the structural representation for the determination system that the public transport that one embodiment of the invention provides facilitates index.Such as figure
Shown in 1a, one embodiment of the invention provides a kind of determination system of public transport facility index, including：Data acquisition module 101,
The public transport data in place to be assessed are covered for obtaining；Wherein, the public transport data include：Public transport line,
And the position of website that public transport line includes；Coverage determining module 102, for based on every public transport line bag
The quantity of the website contained, determine the public transport line coverage in the place to be assessed；Arrival degree determining module 103, is used for
Based on the quantity for the website that can be reached from the place to be assessed by least one preset time period, determine described to be assessed
The public transport line arrival degree in place；Index determining module 104, for based on the public transport line coverage, described
Preset function between public transport line arrival degree and public transport line coverage and public transport line arrival degree is closed
System, determine the traffic convenience index in the place to be assessed.
In the present invention, data acquisition module 101 can obtain given place to be assessed by network from related web site
Public traffic line circuit-switched data, including the position of website that bus routes and subway line and every circuit include.
After data acquisition module 101 obtains the public traffic line circuit-switched data in place to be assessed, coverage determining module 102
The quantity for the website that every public transport line includes can specifically be counted, and remove based on the public traffic line circuit-switched data of acquisition
The quantity of the website for the repetition that a plurality of public transport line is passed through, i.e., if multiple public transport lines pass through same station
Point, then only count once, finally the public affairs using the website quantity sum for not including repetition website of statistics as the place to be assessed
Traffic route coverage altogether.
In addition, arrival degree determining module 103 can also obtain the public transport in place to be assessed based on data acquisition module 101
Track data determines the public transport line arrival degree in place to be assessed, and specifically, statistics passes through at least one preset time
The quantity for the website that Duan Liyong can reach by the public transport line in the place to be assessed from the place to be assessed, so
The total number of the website of statistics is defined as to the public transport line arrival degree in place to be assessed afterwards, will each preset time period
The total number that the website number that the interior public transport line by the place to be assessed can reach is added to obtain is defined as
The public transport line arrival degree in the place to be assessed., can be to be evaluated to determine by following formula (1) in another example
Estimate the public transport line arrival degree in place：
Wherein, DiFor the public transport line arrival degree in place to be assessed, TnFor corresponding to n-th of preset time period when
Between, unit is hour (h) or minute (m), and n is the integer more than or equal to 1；Count(Gi) represent from i energy in place to be assessed
Get at the quantity of the website reached.
Herein, the quantity of preset time period and corresponding time can determine according to actual conditions, typically, can be with
The website sum that can be reached by each public bus network in place to be assessed by the period for a period statistics, or
Person first give one can represent place to be assessed where urban transportation facility situation specified time as the most long period,
It is then determined that multiple appropriate other times sections, for example, by taking a line city as an example, because traffic is relatively flourishing, may be selected 2 hours
Be used as the most long period, then select be used as other times section within 1 hour and 0.5 hour, respectively statistics pass through 2 hours, it is 1 small
When and the website sum that can reach of 0.5 hour each public bus network by place to be assessed.
Coverage determining module 102 and arrival degree determining module 103 can be synchronous or asynchronous to the public of place to be assessed
The public transport line in traffic route coverage and place to be assessed is determined.
It is determined that after the public transport line coverage in place to be assessed and public intersection road arrival degree, index determining module
104 can determine whether weighted value corresponding to the public transport line coverage and public transport line arrival degree difference, then
The public transport line coverage and the public transport line arrival degree are weighted into summation obtains and value to be defined as
The traffic convenience index in the place to be assessed, specifically the traffic convenience in place to be assessed can be calculated by following formula (2)
Index：
CTIi=α * Fi+β*Di (2)
Wherein, CTIiFor place i to be assessed traffic convenience index, the public transport line that α is place i to be assessed covers
Spend FiWeighted value, β be place i to be assessed public transport line arrival degree DiWeighted value, it is preferred that α and β value model
Enclose for [0.1,0.9], and alpha+beta=1, α and β specific value can determine according to actual conditions.
The present embodiment provide public transport facility index determination system it is determined that traffic convenience index due to fully
Consider the coverage of the public transport line in place to be assessed and the situation of arrival degree so that it is determined that traffic convenience index more
Add the objective and degree of accuracy high.
The structural representation of the determination system for the public transport facility index that another embodiment of the present invention provides, such as Fig. 1 b institutes
Show, the determination system for the public transport facility index that the present embodiment provides includes data acquisition module 201, region division module
202nd, position determination module 203, coverage determining module 204, arrival degree determining module 205 and index determining module 206.The reality
Example is applied compared with previous embodiment, difference is, in addition to region division module 202 and position determination module 203, its
In, the data acquisition module 101 and index of data acquisition module 201 and index determining module 206 and previous embodiment determine mould
The function phase of block 104 is same, and the coverage of coverage determining module 204 and arrival degree determining module 205 and previous embodiment determines
Module 102 and arrival degree determining module 103 are essentially identical, and difference is the He of coverage determining module 204 of the present embodiment
Arrival degree determining module 205 is based on place to be assessed being mapped to after grid system carrying out public transport line coverage again and arriving
Up to the determination of degree, can then be introduced in detail.
In the region of some bus routes skewness, the different websites of same bus routes or different bus routes
Though do not repeat distance very close to, by the public transport line coverage in the places to be assessed of such station statistics and
Although arrival degree is high, can only embody place to be assessed reach the densely distributed region in bus station traffic be it is convenient,
And reach the sparse regional traffic of bus station distribution and not necessarily facilitate, it is seen then that the public transport facility index finally given is simultaneously
Differ and surely accurately embody the public transport facility situation in place to be assessed.
In the present embodiment, the predeterminable area can be divided into multiple grid cells, by corresponding to place to be assessed
Public transit route can embody place to be assessed to equally distributed grid to the coverage and arrival degree of different grid cells
The coverage of unit and arrivals degree, without because public traffic station be distributed it is overstocked (such as：Positioned at same grid cell
In) accuracy of impact evaluation result, that is, it is more objective and accurate to obtain public transport facility index.The public transport facility refers to
Several determination systems also includes region division module 202, and the region division module 202 is used to perform carries out net to predeterminable area
The pre-treatment step of lattice division：Predeterminable area is carried out mesh generation by the grid cell based on default size and shape, is obtained more
Individual grid cell, and adjacent grid cell boundary overlaps；Wherein, the place to be assessed is located at the predeterminable area；It is described
Position determination module 203 is used to be directed to every public transport line, according to the website that the public transport line includes and each grid
Position relationship between unit, determine the grid cell that the website that the public transport line includes is located at respectively；The coverage
Determining module, the total number of the unduplicated grid cell specifically for each bar public transport line is covered each by are defined as institute
State the public transport line coverage in place to be assessed.In the present embodiment, due to true including region division module 202 and position
Cover half block 203, therefore the public transport facility index in place to be assessed can be determined based on the grid of division, this is entered below
Row is discussed in detail.
It is determined that place to be assessed public transport line coverage and arrival degree before, need to be by corresponding to place to be assessed
Predeterminable area carry out mesh generation, to form the grid system of the predeterminable area.The predeterminable area can according to be actually needed into
The extreme value of the position for the website gone included by specified or every public transport line according to acquired in data acquisition module 101
To determine, for ease of division, predeterminable area can be quadrangle form, preferably rectangular.Specifically, the place to be assessed can be based on
Corresponding electronic map, a region is specified to obtain all public transport as the predeterminable area, or based on electronic map
The geographical coordinate of the position extreme value for the website that circuit can reach, the geography of two two farthest position extreme values of distance can be chosen
Coordinate forms the predeterminable area of rectangle.By Pekinese exemplified by some place to be assessed, the ground of the two position extreme values obtained
It is the A points and B points in Fig. 2 to manage coordinate, and the predeterminable area formed according to A points and B points is as shown in Fig. 2 rectangular area.
Specifically, region division module 202 is used for the center using the center of the predeterminable area as grid cell, is based on
The size generation n-shaped grid cell of the grid cell, and it is used as central gridding unit；The central gridding unit is made
For newly-generated grid cell, following partiting step is performed：Distinguish on each border that newly-generated grid cell is formed to region
As a line circle of the grid cell adjacent with the region, correspond to propagation direction to the border and continue division with default size
N-shaped grid cell；Using the grid cell of this division as newly-generated grid cell, the division step is performed again
Suddenly, until the predeterminable area is fully completed the division of grid cell.Herein, n-shaped grid cell can be positive triangle
Shape, square, regular pentagon, regular hexagon etc., preferably regular hexagon.The size and size of positive N warp mesh units can
Specified according to being actually needed, the center of predeterminable area can be based on the geographical position corresponded in predeterminable area on electronic map
Coordinate and determine.
In one example, grid cell can be regular hexagon, can be with as shown in Fig. 2 when generating central gridding unit
The geographical coordinate O at the center of predeterminable area is the center of circle, specifies radius R, such as 1 kilometer is that radius does a circle, then justifies this
Regular hexagonal cell unit, the length of side R ' of regular hexagonal cell unit and specified radius are generated as the inscribed circle of regular hexagon
Relation between R isKilometer.Then, using the central gridding unit of generation as newly-generated grid list
Member, perform following partiting step：Newly-generated grid cell is formed into each border in region as adjacent with the region
Grid cell a line circle, it is 0.866 kilometer of positive six side to correspond to propagation direction to continue division with the length of side to the border
Shape grid cell；In this example, corresponding six propagation directions in six borders of regular hexagon, it is followed successively by the direction of the clock：Upper left
Side, upper right side, front-right, lower right, lower left and front-left；Using the grid cell of this division as newly-generated grid
Unit, the partiting step is performed again, until the predeterminable area is fully completed the division of grid cell, to generate preset areas
The grid system in domain, as shown in Figure 2.After the grid system of generation predeterminable area, the center that can obtain each grid cell is sat
Mark, generate grid element center list and preserved.It should be noted that the grid system of predeterminable area should not have uncovering area
Domain, the region that only public transport is unreachable to, such as river, massif and park etc..
After region division module 202 carries out mesh generation generation grid system to predeterminable area, position determination module 203
The position of the website by place to be assessed and all public transport lines for covering the place to be assessed is needed to be mapped to the grid
In system.Specifically, the position determination module 203 is specifically used for being closed according to the position between any place and each grid cell
System, determines the grid cell that any place is located in the following way：Calculate geographical coordinate corresponding to any place with
The distance between centre coordinate of each grid cell；By the affiliated grid of centre coordinate that distance between any place is minimum
Unit, it is defined as the grid cell that any place is located at.By taking the mapping in place to be assessed as an example, position determination module 203
Calculate each grid element center in the grid element center list of geographical coordinate and predeterminable area corresponding to the place to be assessed coordinate it
Between distance, the distance can be Euclidean distance, by the affiliated net of grid element center coordinate that distance between the place to be assessed is minimum
Lattice unit is defined as the grid cell that the place to be assessed is located at.By grid cell be regular hexagon exemplified by, when calculating away from
When meeting d≤R ' from d, then position determination module 203 can stop calculating, and d is met into the corresponding grid element center coordinate institutes of d≤R '
Category grid cell is defined as the grid cell that the place to be assessed is located at.Similarly, covering can be somebody's turn to do by position determination module 203
The website that all public transport lines in place to be assessed include is mapped in the grid system, obtains every public transport line
Comprising the grid cell that is located at of website, wherein, grid cell that identical circuit is passed through is available be identically numbered into
Row is represented and preserved.
It is mapped in the website for including all public transport lines in place to be assessed and the covering place to be assessed pre-
If after in the grid system in region, coverage determining module 204 and arrival degree determining module 205 are based on place to be assessed and every
The grid cell that public transport line is located at determines the public transport line coverage in place to be assessed and arrival degree.
Specifically, coverage determining module 204 is used for the unduplicated grid for being covered each by each bar public transport line
The total number of unit is defined as the public transport line coverage in the place to be assessed, i.e., if different public transport lines
Each self-corresponding website is located at same grid cell, that is, the grid cell repeated be present, then only count once.So, it is determined that
During the public transport line coverage in place to be assessed, the public transport line for the grid cell being located to it can be converted to
Coverage.The public transport line coverage in place to be assessed can be determined based on following formula (3)：
Fi=Count (Gi) (3)
Wherein, FiRepresent i public transport line coverages in place to be assessed, Count (Gi) it is from place i to be assessed
The total number for the unduplicated grid cell that can be reached.
Because in practice, the distance between two websites that public transport line is reached may be longer, thus by this
After two websites are mapped in grid system, it is possible that the discontinuous situation of grid cell that the two websites are located at,
For such case, coverage determining module 204 is additionally operable to determine each public transport line in the position determination module 202
Comprising the grid cell that is located at respectively of website after, for two adjacent sites institute positions in any public transport line be present
In grid cell differ and non-conterminous situation, determine in any public transport line between two adjacent sites
Part circuit.Also, the position determination module 203 be additionally operable to point midway based on the part circuit and each grid cell it
Between position relationship, determine the grid cell that the point midway is located at；And it is public that the grid cell of the determination is defined as into this
The grid cell of traffic route covering.Specifically, coverage determining module 204 can combine the traveling side of the public transport line
To progress geographical position sampling, obtains the part circuit between the two adjacent sites, afterwards between the two adjacent sites
The part track data is sent to position determination module 204, position determination module 204 calculates the point midway of the part circuit
Coordinate and the distance between each grid cell centers coordinate, by the grid element center coordinate that distance between the point midway is minimum
Affiliated grid cell is defined as the grid cell that the point midway is located at.
In a specific example, in the grid system generated with the predeterminable area of regular hexagon division, covering is to be evaluated
The public transport line for estimating place A is two lines road, and the grid cell that this two lines road is located at is as shown in figure 3, wherein, grid
Numbering in unit is line name, and numbering 1 represents the grid cell that circuit 1 passes through, and numbering 2 represents the grid that circuit 2 passes through
Unit, numbering 1,2 represents the grid cell that circuit 1 and circuit 2 all pass through, from the figure 3, it may be seen that the grid cell that circuit 1 is passed through
It is non-conterminous to have two, i.e., discontinuously, determines coverage, it is necessary to make its continuous to be accurate.Therefore, coverage determining module
The direct of travel of 204 combined circuits 1, geographical position sampling is carried out between the two places, obtained between the two websites
Part circuit, then position determination module 203 be based on the part circuit, determine the net that the point midway of the part circuit is located at
Lattice unit, as shown in the grid of dashed lines in Fig. 3, so that the grid cell that two websites of circuit 1 are located at is continuous.In Fig. 3
In shown example, place A to be assessed public transport line coverage F is understood according to above-mentioned formula (3)A=Count (GA)
=6+5-2=9.
The arrival degree determining module 205 is specifically used for each preset time being directed at least one preset time period
Section, it is determined that by the preset time period, the grid cell being located at by each bar public transit route from the place to be assessed
The grid cell that the website that can be reached is located at；By the total of the grid cell that can be reached by least one preset time period
Number is defined as the public transport line arrival degree in the place to be assessed, will grid that each preset time period can reach
The total number that the number of unit is added to obtain is defined as the public transport line arrival degree in the place to be assessed.So,
When it is determined that the public transport line arrival in place to be assessed is spent, the public friendship for the grid cell being located to it can be converted to
Logical circuit arrival degree.The determination of preset time period in the present embodiment is identical with previous embodiment, the public friendship in place to be assessed
The determination of logical circuit arrival degree also can be identical with previous embodiment, that is, above-mentioned formula (1) can also be used to determine place to be assessed
Public transport line arrival degree, simply in the present embodiment, the Count (G in formula (1)i) represent to go out from place i to be assessed
Send out the grid cell quantity that can be reached.
In a specific example, in the grid system generated with the predeterminable area of regular hexagon division, to be assessedly
The grid list that point A can be reached in preset time period 2h, 1h and 0.5h from the place A to be assessed grid cells being located at
First situation is as shown in figure 4, numbering 1, numbering 2 and numbering 3 are illustrated respectively in the regular hexagon being located in 0.5h, 1h and 2h from A points
Grid cell sets out other regular hexagonal cell units that can be reached, it can be seen that the grid cell number that numbering 1 is located at is
2, the grid cell number that numbering 2 is located at is 8, and the grid cell number that numbering 3 is located at is 11, then utilizes above-mentioned formula (1)
The public transport line arrival degree of the place A to be assessed
It is similar to previous embodiment, it is determined that the public transport line coverage and public transport arrival degree in place to be assessed
Afterwards, index determining module 206 can be to be evaluated to determine based on the public transport line coverage and public transport arrival degree of determination
Estimate the traffic convenience index in place, you can the traffic convenience index in place to be assessed is determined using above-mentioned formula (2).Due to
Previous embodiment is similar, so the present embodiment omits the detailed description on index determining module 206.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of determination method of public transport facility index,
It is similar to foregoing determination system to solve the principle of problem by this method, therefore the implementation of this method may refer to aforementioned system
Implementation, repeat part repeat no more.
Embodiments of the invention provide a kind of determination method of public transport facility index, as shown in Figure 5 a, including it is following
Step：
S301, obtain the public transport data for covering place to be assessed；Wherein, the public transport data include：It is public
Traffic route, and the position of website that public transport line includes.
S302, the website included based on every public transport line quantity, determine the public friendship in the place to be assessed
Logical circuit coverage.
S303, the quantity based on the website that can be reached from the place to be assessed by least one preset time period,
Determine the public transport line arrival degree in the place to be assessed.
S304, based on the public transport line coverage, the public transport line arrival degree and public traffic line
Preset function relation between road coverage and public transport line arrival degree, determine that the traffic convenience in the place to be assessed refers to
Number.
Above-mentioned steps S302 and the S303 no strict sequencing of execution.
Another embodiment of the present invention provides a kind of determination method of public transport facility index, as shown in Figure 5 b, including
Following steps：
S401, perform the pre-treatment step that mesh generation is carried out to predeterminable area：Grid based on default size and shape
Predeterminable area is carried out mesh generation by unit, obtains multiple grid cells, and adjacent grid cell boundary overlaps；Wherein, treat
Assess place and be located at predeterminable area.
S402 can be only performed once for same predeterminable area, that is, carries out a mesh generation.It is follow-up to be somebody's turn to do for being located at
The place to be assessed of predeterminable area carries out using the mesh generation result during traffic convenience Index Assessment.
S402, obtain the public transport data for covering place to be assessed；Wherein, the public transport data include：It is public
Traffic route, and the position of website that public transport line includes.
Further, the step S401 and step S402 no strict sequencing of execution.
S403, for every public transport line, according to the website that the public transport line includes and each grid cell it
Between position relationship, determine the grid cell that the website that the public transport line includes is located at respectively.
S404, the total number for the unduplicated grid cell for being covered each by each bar public transport line are defined as to be assessed
The public transport line coverage in place.
After the grid cell that step S403 determines that the website that each public transport line includes is located at respectively, may be used also
To perform following steps：
Step 1: for exist in any public transport line the grid cell that is located at of two adjacent sites differ and
Non-conterminous situation, determine the part circuit between two adjacent sites in any public transport line.
Step 2: the position relationship between the point midway and each grid cell of the part circuit based on determination, it is determined that should
The grid cell that point midway is located at.
Step 3: the grid cell of the determination is defined as to the grid cell of public transport line covering.
S405, according to the position relationship between the position in place to be assessed and each grid cell, determine place institute to be assessed
The grid cell being located at.
Step S405 execution does not have strict sequencing with step S402~step S404.
S406, for each preset time period at least one preset time period, it is determined that by the preset time period, lead to
The grid cell that the website that crossing the grid cell that each bar public transit route is located at from place to be assessed can reach is located at.
S407, the total number for the grid cell that can reach at least one preset time period of process are defined as to be assessedly
The public transport line arrival degree of point.
The public transport line that S408, the public transport line coverage determined based on step S404, step S407 are determined
Preset function relation between arrival degree and public transport line coverage and public transport line arrival degree, is determined to be evaluated
Estimate the traffic convenience index in place.
Above-mentioned steps S403~step S404 and step S405~step S407 no strict the sequencing of execution,
That is, it is possible to first determine that the coverage of public transport line determines the arrival degree of public transport line again, can also first determine
The public arrival degree for giving circuit determines the coverage of public transport line again.
Further, above-mentioned steps S401 is specifically included：Center using the center of the predeterminable area as grid cell,
Size generation n-shaped grid cell based on the grid cell, and it is used as central gridding unit；By the central gridding list
Member performs following partiting step as newly-generated grid cell：Newly-generated grid cell is formed to each border in region
Respectively as a line circle of the grid cell adjacent with the region, correspond to propagation direction to the border and continue division with default
The n-shaped grid cell of size；Using the grid cell of this division as newly-generated grid cell, described draw is performed again
Step by step, until the predeterminable area is fully completed the division of grid cell.
Further, above-mentioned steps S403, S405 and step 2, public transport line can be determined with the following method
Comprising website, place to be assessed and part circuit the grid cell that is located at respectively of point midway, specifically include：According to appoint
Position relationship between one place and each grid cell, the grid cell that any place is located at is determined in the following way：
Calculate the distance between centre coordinate of geographical coordinate corresponding to any place and each grid cell；Will be with any place
Between the minimum affiliated grid cell of centre coordinate of distance, be defined as the grid cell that any place is located at.
It should be understood by those skilled in the art that, embodiments herein can be provided as method, system or computer program
Product.Therefore, the application can use the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the application can use the computer for wherein including computer usable program code in one or more
The computer program production that usable storage medium is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
Although having been described for the preferred embodiment of the application, those skilled in the art once know basic creation
Property concept, then can make other change and modification to these embodiments.So appended claims be intended to be construed to include it is excellent
Select embodiment and fall into having altered and changing for the application scope.Obviously, those skilled in the art can be to the application
Embodiment carries out the spirit and scope of various changes and modification without departing from the embodiment of the present application.So, if the application is implemented
These modifications and variations of example belong within the scope of the application claim and its equivalent technologies, then the application is also intended to include
Including these changes and modification.
Claims (10)
- A kind of 1. determination system of public transport facility index, it is characterised in that including：Data acquisition module, the public transport data in place to be assessed are covered for obtaining；Wherein, the public transport packet Include：Public transport line, and the position of website that public transport line includes；Coverage determining module, for the quantity of the website included based on every public transport line, determine it is described to be assessedly The public transport line coverage of point；Arrival degree determining module, for based on the station that can be reached from the place to be assessed by least one preset time period The quantity of point, determine the public transport line arrival degree in the place to be assessed；Index determining module, for based on the public transport line coverage, the public transport line arrival degree, Yi Jigong Preset function relation between traffic route coverage and public transport line arrival degree altogether, determines the friendship in the place to be assessed Defaecation profit index.
- 2. system according to claim 1, it is characterised in that also include：Region division module；The region division module, the pre-treatment step of mesh generation is carried out to predeterminable area for performing：Predeterminable area is carried out mesh generation by the grid cell based on default size and shape, obtains multiple grid cells, and phase Adjacent grid cell boundary overlaps；Wherein, the place to be assessed is located at the predeterminable area.
- 3. system according to claim 2, it is characterised in that also include：Position determination module；The position determination module, for for every public transport line, according to the website that the public transport line includes with Position relationship between each grid cell, determine the grid cell that the website that the public transport line includes is located at respectively；The coverage determining module, specifically for the unduplicated grid cell that is covered each by each bar public transport line Total number is defined as the public transport line coverage in the place to be assessed.
- 4. system according to claim 3, it is characterised in that the coverage determining module, be additionally operable in the position After determining module determines the grid cell that the website that each public transport line includes is located at respectively, for any public friendship There is the grid cell that two adjacent sites are located in logical circuit to differ and non-conterminous situation, determine any public friendship Part circuit in logical circuit between two adjacent sites；The position determination module, the position being additionally operable between the point midway based on the part circuit and each grid cell are closed System, determines the grid cell that the point midway is located at；And the grid cell of the determination is defined as the public transport line and covered The grid cell of lid.
- 5. system according to claim 3, it is characterised in that the position determination module, be additionally operable in the arrival degree Before determining module determines the public transport line arrival degree in the place to be assessed, according to the position in the place to be assessed with Position relationship between each grid cell, determine the grid cell that the place to be assessed is located at；The arrival degree determining module, specifically for for each preset time period at least one preset time period, it is determined that By the preset time period, the grid cell being located at by each bar public transit route from the place to be assessed can reach The grid cell that is located at of website；The total number for the grid cell that can be reached by least one preset time period is determined For the public transport line arrival degree in the place to be assessed.
- 6. system according to claim 2, it is characterised in that the region division module, specifically for that described will preset Center of the center in region as grid cell, the size generation n-shaped grid cell based on the grid cell, and conduct Central gridding unit；Using the central gridding unit as newly-generated grid cell, following partiting step is performed：Will be newly-generated Grid cell form a line circle of each border respectively as the grid cell adjacent with the region in region, to the border Corresponding propagation direction continues n-shaped grid cell of the division with default size；Using the grid cell of this division as new The grid cell of generation, the partiting step is performed again, until the predeterminable area is fully completed the division of grid cell.
- 7. according to the system described in claim any one of 3-5, it is characterised in that the position determination module, specifically for root According to the position relationship between any place and each grid cell, the grid list that any place is located at is determined in the following way Member：Calculate the distance between centre coordinate of geographical coordinate corresponding to any place and each grid cell；By the affiliated grid cell of centre coordinate that distance between any place is minimum, it is defined as what any place was located at Grid cell.
- 8. according to the system described in claim 3-5, it is characterised in that the index determining module, specifically for described in determination Weighted value corresponding to public transport line coverage and public transport line arrival degree difference；By the public transport line Coverage and the public transport line arrival degree are weighted the friendship that summation obtains and value is defined as the place to be assessed Defaecation profit index.
- A kind of 9. determination method of public transport facility index, it is characterised in that comprise the following steps：Obtain the public transport data for covering place to be assessed；Wherein, the public transport data include：Public transport line, And the position of website that public transport line includes；The quantity of the website included based on every public transport line, determine the public transport line covering in the place to be assessed Degree；Based on the quantity for the website that can be reached from the place to be assessed by least one preset time period, it is determined that described treat Assess the public transport line arrival degree in place；Based on the public transport line coverage, the public transport line arrival degree and public transport line coverage Preset function relation between public transport line arrival degree, determine the traffic convenience index in the place to be assessed.
- 10. according to the method for claim 9, it is characterised in that also include the pre- place that mesh generation is carried out to predeterminable area Manage step：Predeterminable area is carried out mesh generation by the grid cell based on default size and shape, obtains multiple grid cells, and phase Adjacent grid cell boundary overlaps；Wherein, the place to be assessed is located at the predeterminable area.
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| CN201710515434.9A CN107392438A (en) | 2017-06-29 | 2017-06-29 | A kind of determination system and method for public transport facility index |
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| CN201710515434.9A CN107392438A (en) | 2017-06-29 | 2017-06-29 | A kind of determination system and method for public transport facility index |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108288215A (en) * | 2018-01-17 | 2018-07-17 | 链家网（北京）科技有限公司 | It is a kind of to select room method and system |
| CN112613770A (en) * | 2020-12-28 | 2021-04-06 | 北京市市政工程设计研究总院有限公司 | Granulation space scale public transportation convenience index calculation method and device |
| CN117112932A (en) * | 2023-10-25 | 2023-11-24 | 成都智达万应科技有限公司 | GPS-based road patrol coverage analysis method and system |
-
2017
- 2017-06-29 CN CN201710515434.9A patent/CN107392438A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108288215A (en) * | 2018-01-17 | 2018-07-17 | 链家网（北京）科技有限公司 | It is a kind of to select room method and system |
| CN112613770A (en) * | 2020-12-28 | 2021-04-06 | 北京市市政工程设计研究总院有限公司 | Granulation space scale public transportation convenience index calculation method and device |
| CN112613770B (en) * | 2020-12-28 | 2024-01-19 | 北京市市政工程设计研究总院有限公司 | Granulated space scale public transportation convenience index calculation method and device |
| CN117112932A (en) * | 2023-10-25 | 2023-11-24 | 成都智达万应科技有限公司 | GPS-based road patrol coverage analysis method and system |
| CN117112932B (en) * | 2023-10-25 | 2024-01-30 | 成都智达万应科技有限公司 | GPS-based road patrol coverage analysis method and system |
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