CN116739322B - Taxi supply and demand assessment method, equipment and medium based on service acquisition index - Google Patents
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Abstract
The invention discloses a taxi supply and demand assessment method, equipment and medium based on a service acquisition index: cleaning taxi operation data in a research area, and eliminating error data; dividing a research area into a plurality of space units with the same size; judging the operation state of the taxi according to the taxi operation data, and calculating the supply and demand of the taxi in each space unit; screening and removing space units with small taxi demand; and calculating the taxi service acquisition index in each screened space unit, weighting to obtain the taxi service acquisition index in the research area, and evaluating the taxi supply and demand state in the research area. The method and the device can evaluate the taxi service acquisition matching degree in the area in real time.
Description
Technical Field
The invention relates to a taxi service acquisition matching evaluation technology, in particular to a taxi supply and demand evaluation method, device and medium based on a service acquisition index.
Background
Taxi is used as one of the main transportation modes for supplementing urban public transportation, and plays an important role in urban transportation by the characteristics of rapidness and convenience. For the areas where the transportation hub and the important business areas are always full of the taxi service, the analysis index which reflects the service acquisition condition in real time is established, the basis is provided for the taxi capacity scheduling, and the method has important significance for improving the convenience degree of resident traveling.
The existing taxi has the problems of low carrying rate, high empty rate, long waiting time of passengers and the like, the method for determining the service matching degree of the taxi in real time from the space angle at the present stage is not yet constructed, the whole situation is generally overviewed through the positioning data position, but the dense and sparse of the quantity distribution can only be reflected in the positioning data distribution, the positioning data is used as the basis, or the riding quantity is used as an index, the conclusion of re-analysis processing is not carried out, and the taxi is difficult to be used as guidance of taxi management and regulation.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a taxi supply and demand assessment method, equipment and medium based on a service acquisition index, which can evaluate taxi service acquisition matching degree in an area in real time.
The aim of the invention is achieved by the following technical scheme.
A taxi supply and demand state evaluation method based on taxi service acquisition index, comprising the following steps:
s1, cleaning taxi operation data in a research area, and eliminating data with errors;
s2, dividing a research area into space units with the same size by combining the running speed of the taxi and the running distance in unit time;
s3, judging the operation state of the taxi according to the taxi operation data after the cleaning treatment in the step S1, and calculating the taxi supply quantity and the taxi demand quantity in each space unit in the step S2;
s4, screening space units according to the demand of the taxi, and eliminating the space units with the demand of less than 3;
s5, determining a calculation period according to the taxi demand in the space units, calculating taxi service acquisition indexes in the space units after screening in the step S4, and weighting the taxi service acquisition indexes in the space units according to the ratio of the taxi demand in the space units to obtain the taxi service acquisition indexes in the research area;
s6, evaluating the supply and demand states of the taxis in the research area according to the taxi service acquisition index in the research area obtained in the step S5.
In the above-mentioned evaluation method, the taxi in step S1 includes a patrol taxi and an online offer taxi, the taxi operation data includes patrol taxi operation data and online offer taxi operation data, the patrol taxi operation data includes positioning data, empty weight data and order data of the patrol taxi, and the online offer taxi operation data includes positioning data, order initiation data and order success data of the online offer taxi.
In the above evaluation method, the cleaning process of the taxi operation data in step S1 includes the following steps:
s1.1 spatial position serious offset screening: comparing the longitude and latitude data of the taxi positioning data with the longitude and latitude range in the research area, and screening and eliminating the positioning data of which the longitude and latitude deviate from the range of the research area;
s1.2 path coordinate deviation screening: and drawing the point position path of the positioning data of the same taxi according to the generation time of the positioning data, and deleting the positioning point positions with abrupt deviation in the drawn path.
In the above evaluation method, step S2 defines the study area as a space unit of the same size, and the specific contents are as follows:
s2.1, taking a running distance of the taxi 1.2 times of a unit time as the inner diameter of a space unit, and determining the size of the space unit;
s2.2, considering the degree of fit with residential areas, business areas and office areas, determining the shape of space units, wherein the space units are regular polygons;
s2.3, dividing the research area into regular polygon space units with the same size according to the determined shape and the inner diameter.
In the above evaluation method, step S3 is a process of determining the operation status of the taxi: converting the operation state of the taxi in unit time into passenger carrying, empty car carrying, passenger carrying, empty car carrying and passenger carrying by converting the numerical value of the 'vehicle state' field of the patrol taxi, converting the numerical value of the 'order initiating data' and the 'order success data' of the network taxi, and judging the operation state of the taxi according to the state change condition;
the taxi supply quantity in the space unit is the number of taxies which provide services for the traveler in the unit time; the taxi supply amount in each space unit is calculated according to the following formula:
wherein,supplying taxi in space unit;the sum of the number of states of taxi empty-empty service is reserved for the taxi on tour and the network;the number of states is the number of empty cars of the tour taxi to the passenger service;is the firstThe time proportion coefficient occupied by the empty taxi service state in the patrol taxi empty taxi-passenger service state;for patrol taxi and network contract taxi passenger-empty service state aggregate countAn amount of;is the firstThe taxi carries passengers to the empty service state, and the time proportion coefficient of the empty service state is taken up;
the taxi demand in the space unit is taxi travel orders generated in unit time by the space unit; the taxi demand in each space unit is calculated according to the following formula:
wherein,demand for taxis in space units;the number of states is the number of empty cars of the tour taxi to the passenger service;the total amount is initiated for the network to offer taxi orders.
In the above evaluation method, the method for determining the calculation period in step S5 is as follows:
wherein T is a calculation period;、each space unit is in a period of 6:00-22:00 of any working day of the current yearAverage taxi demand in the house is made from largeValues 90%, 95% split by small rank;
calculating taxi service acquisition indexes in each space unit according to a 3-time calculation period, wherein the calculation formula is as follows:
wherein,is the firstObtaining an index of taxi service in each space unit;
is the firstThe taxi demand in each space unit is the sum of taxi demand in 3 calculation period time periods of the space unit, and the calculation formula is as follows:
wherein D is i(j) Taxi demand for the ith space unit in the jth calculation cycle period;
is the firstThe taxi supply amount in each space unit is calculated as an average value of taxi supply amounts in 3 period time of the space unit, and the calculation formula is as follows:
wherein S is i(j) Is the ithThe space unit calculates the taxi supply amount in the period of the jth computing period;
the calculation formula of the taxi service acquisition index in the research area is as follows:
wherein,to obtain an index for taxi services in a research area,is the firstTaxi demand in individual space units,is the firstTaxi service acquisition index within a single space unit.
In the above evaluation method, step S6 evaluates the supply and demand states of the taxi in the investigation region, and the specific contents are: when I is more than 0 and less than or equal to 0.12, the study area is easy to drive; when I is more than 0.12 and less than or equal to 0.35, the study area is easier to drive; when I is more than 0.35 and less than or equal to 0.60, the study area is slightly hard to drive; when I is more than 0.60 and less than or equal to 1.1, the vehicle is difficult to drive in the research area; when 1.1 is less than I, the study area is severely hard to drive.
An electronic device for evaluating the supply and demand states of a taxi, comprising a processor and a memory, wherein a computer program executable by the processor is stored in the memory, and the processor realizes the taxi supply and demand state evaluation method based on the taxi service acquisition index when executing the computer program.
A computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the taxi supply and demand state evaluation method based on a taxi service acquisition index as set forth in any one of the above.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
the invention judges the operation state of the taxi by combining the Internet and the operation data of the taxi, calculates and obtains the taxi service acquisition index, visually reflects the matching degree of the taxi distribution and the passenger demand of the area from the space dimension, can directly evaluate the supply and demand state of the taxi according to the taxi service acquisition index, and has important guiding function on dispatching the taxi and improving the travel convenience of residents.
Drawings
Fig. 1 is a flowchart of a taxi supply and demand state evaluation method based on a taxi service acquisition index according to the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The invention provides a taxi service acquisition index calculation method, which reflects the matching degree of taxi vehicle distribution and passenger demand from space dimension, and aims to feed back the space distribution of taxi in a research area, the space distribution of passenger riding demand and the matching degree of the two, guide taxi service organization and avoid serious unbalance of taxi service acquisition in space caused by excessive concentration.
As shown in fig. 1, the method for evaluating the supply and demand states of the taxis based on the taxi service acquisition index of the present invention specifically comprises the following steps:
s1: and cleaning the taxi operation data in the research area, and eliminating the data with errors.
The taxi comprises a patrol taxi and a network taxi, wherein the taxi operation data comprise patrol taxi operation data and network taxi operation data, the patrol taxi operation data comprise positioning data, empty and weight data and order data of the patrol taxi, and the network taxi operation data comprise positioning data, order initiating data and order success data of the network taxi.
The cleaning process of the taxi operation data comprises the following two aspects:
s1.1 spatial position serious offset screening: and comparing the longitude and latitude data of the taxi positioning data with the longitude and latitude range in the research area, and screening and eliminating the positioning data of which the longitude and latitude deviate from the range of the research area.
S1.2 path coordinate deviation screening: and drawing the point position path of the positioning data of the same taxi according to the generation time of the positioning data, and deleting the positioning point positions with abrupt deviation in the drawn path.
S2: the study area is divided into a plurality of space units with the same size by combining the operation speed of the taxi and the driving distance in unit time.
And (3) a study area is defined in a space unit mode, and the running distance of the taxi in 1.2 times of unit time is used as the inner diameter of the space unit to determine the size of the space unit. The shape of the space unit is determined by considering the degree of fit with the residential area, the business area and the office area, and the space unit is regular polygon. According to the determined shape and inner diameter, the research area is defined as regular polygon space units with the same size, so that the specific size of the space slice can be conveniently and directly measured from the map.
S3: and judging the operation state of the taxi according to the taxi operation data after the cleaning treatment, and calculating the taxi supply quantity and the taxi demand quantity in each space unit.
Judging the operation state of the taxi: the real-time operation state of the taxi is obtained through the numerical conversion of the 'vehicle state' field of the patrol taxi and the numerical conversion of the 'order initiating data' and the 'order success data' of the network taxi, the operation state conversion of the taxi in unit time is divided into four types of passenger carrying, empty car, passenger carrying, empty car and passenger carrying, and the operation state of the taxi is judged according to the state change condition.
And calculating the taxi supply quantity and taxi demand quantity in each corresponding space unit according to the operation state of the taxi provided by each space unit.
The taxi supply amount in a certain space unit is the number of taxies which can provide services for the traveler in the unit time. From the aspect of available service, the states of taxies capable of providing service for space units are three types of passenger carrying, empty car and passenger carrying. The number of vehicles in the three states is added as the supply amount of the corresponding space unit. The taxi supply amount in each space unit is calculated according to the following formula:
wherein,supplying taxi in space unit;the sum of the number of states of taxi empty-empty service is reserved for the taxi on tour and the network;the number of states is the number of empty cars of the tour taxi to the passenger service;is the firstThe time proportion coefficient occupied by the empty taxi service state in the patrol taxi empty taxi-passenger service state;the total quantity of the states of the passenger carrying and the empty service of the taxi is reserved for the tour taxi and the network;is the firstAnd the time proportion coefficient occupied by the taxi passenger-empty service state under the empty service state.
The taxi demand in a certain space unit is the taxi travel demand generated by the space unit in unit time, and the taxi travel order quantity generated by the space unit in unit time is taken as the demand. The taxi which can be used as the demand is empty to passenger, and the taxi in the state is supplied and converted into the demand in unit time, and the demand is counted as 1 demand and is counted into a space unit in the conversion state.
Taking taxi travel orders generated in a space unit in unit time as taxi demand in the space unit, wherein the taxi demand in each space unit is calculated according to the following formula:
wherein,demand for taxis in space units;the number of states is the number of empty cars of the tour taxi to the passenger service;the total amount is initiated for the network to offer taxi orders.
S4, avoiding the influence of a non-representative result on a final calculation result, screening space units according to the taxi demand, excluding space units with smaller taxi demand, namely, excluding space units with single space units with taxi demand less than 3 in unit time, and not counting the calculation range of taxi service acquisition indexes in a research area.
S5, determining a calculation period according to the taxi demand in the space units, calculating the screened taxi service acquisition indexes in the space units, and weighting the taxi service acquisition indexes in the space units according to the ratio of the taxi demand in the space units to obtain the taxi service acquisition indexes in the research area.
The method for determining the calculation period comprises the following steps:
wherein T is the calculation period.、Each space unit is in a period of 6:00-22:00 of any working day of the current yearThe average taxi demand in the range is 90% and 95% of the values in the order from big to small; the specific process comprises the following steps: dividing the selected time period of any working day 6:00-22:00 of the current year into a plurality of unit time by taking the period t as the unit time, calculating the taxi demand of each space unit in each unit time, and averaging to obtain the period of each space unitThe average taxi demand in the system is sorted from big to small, and the 90 th and 95 th percentile values are selected.
When calculating the taxi service acquisition index in each space unit, the taxi service acquisition index needs to be calculated according to a 3-time calculation period, and the calculation formula is as follows:
wherein,is the firstTaxi service acquisition index within a single space unit.
Is the firstThe taxi demand in each space unit is the sum of taxi demand in 3 calculation period time periods of the space unit, and the calculation formula is as follows:
wherein D is i(j) Taxi demand for the ith space unit during the jth calculation cycle period.
Is the firstThe taxi supply amount in each space unit is calculated as an average value of taxi supply amounts in 3 period time of the space unit, and the calculation formula is as follows:
wherein S is i(j) Taxi supplies are calculated for the ith space cell in the jth cycle period.
When calculating the taxi service acquisition index in the research area, the taxi service acquisition index in each space unit needs to consider the demand duty ratio coefficient, and the calculation formula is as follows:
wherein,to obtain an index for taxi services in a research area,is the firstTaxi demand in individual space units,is the firstTaxi service acquisition index within a single space unit.
S6, evaluating the supply and demand states of the taxis in the research area according to the acquired taxi service acquisition index in the research area: when I is more than 0 and less than or equal to 0.12, the study area is easy to drive; when I is more than 0.12 and less than or equal to 0.35, the study area is easier to drive; when I is more than 0.35 and less than or equal to 0.60, the study area is slightly hard to drive; when I is more than 0.60 and less than or equal to 1.1, the vehicle is difficult to drive in the research area; when 1.1 is less than I, the study area is severely hard to drive.
For example, the taxi service acquisition index of one month in the study area is normalized in a manner of dividing from small to large by 20%, 40%, 60%, 80%, 100% and the taxi supply and demand state evaluation criteria are given as shown in table 1.
TABLE 1 taxi service acquisition index criteria and supply and demand status correspondence
| Taxi service acquisition index calculation value | 0＜I≤0.12 | 0.12＜I≤0.35 | 0.35＜I≤0.60 | 0.60＜I≤1.1 | 1.1＜I |
| Taxi service acquisition index is divided into bit segments from small to large | 0-20% | 20-40% | 40-60% | 60-80% | 80-100% |
| Taxi supply and demand state | Easy to get on the car | Easy to get on the car | Light hard-to-hit vehicle | Moderately hard-to-drive vehicle | Serious hard-to-drive vehicle |
The invention provides an electronic device for evaluating the supply and demand states of taxies, which comprises a processor and a memory, wherein a computer program which can be executed by the processor is stored in the memory, and the computer program is executed by the processor to realize the taxi supply and demand state evaluation method based on taxi service acquisition indexes.
The present invention also proposes a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the taxi supply and demand state evaluation method based on a taxi service acquisition index according to the present invention.
Although the function and operation of the present invention has been described above with reference to the accompanying drawings, the present invention is not limited to the above-described specific functions and operations, but the above-described specific embodiments are merely illustrative, not restrictive, and many forms can be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the appended claims, which are included in the protection of the present invention.
Claims (3)
1. A taxi supply and demand state evaluation method based on taxi service acquisition index, characterized by comprising the following steps:
s1, cleaning taxi operation data in a research area, and eliminating data with errors;
the taxi comprises a patrol taxi and an online-contract taxi, wherein the taxi operation data comprise patrol taxi operation data and online-contract taxi operation data, the patrol taxi operation data comprise positioning data, empty-load vehicle data and order data of the patrol taxi, and the online-contract taxi operation data comprise positioning data, order initiating data and order success data of the online-contract taxi;
the cleaning process of the taxi operation data comprises the following steps:
s1.1 spatial position serious offset screening: comparing the longitude and latitude data of the taxi positioning data with the longitude and latitude range in the research area, and screening and eliminating the positioning data of which the longitude and latitude deviate from the range of the research area;
s1.2 path coordinate deviation screening: the method comprises the steps of drawing a point position path according to positioning data of the same taxi and generating time of the positioning data, and deleting the positioning point position with mutation offset in the drawn path;
s2, dividing a research area into space units with the same size by combining the running speed of the taxi and the running distance in unit time; the specific contents are as follows:
s2.1, taking a running distance of the taxi 1.2 times of a unit time as the inner diameter of a space unit, and determining the size of the space unit;
s2.2, considering the degree of fit with residential areas, business areas and office areas, determining the shape of space units, wherein the space units are regular polygons;
s2.3, dividing a research area into regular polygon space units with the same size according to the determined shape and the determined inner diameter;
s3, judging the operation state of the taxi according to the taxi operation data after the cleaning treatment in the step S1, and calculating the taxi supply quantity and the taxi demand quantity in each space unit in the step S2;
wherein, the judging process of the taxi operation state comprises the following steps: converting the operation state of the taxi in unit time into passenger carrying, empty car carrying, passenger carrying, empty car carrying and passenger carrying by converting the numerical value of the 'vehicle state' field of the patrol taxi, converting the numerical value of the 'order initiating data' and the 'order success data' of the network taxi, and judging the operation state of the taxi according to the state change condition;
the taxi supply quantity in the space unit is the number of taxies which provide services for the traveler in the unit time; the taxi supply amount in each space unit is calculated according to the following formula:
wherein S is the supply amount of taxi in the space unit; q (Q) ee The sum of the number of states of taxi empty-empty service is reserved for the taxi on tour and the network; q (Q) tef The number of states is the number of empty cars of the tour taxi to the passenger service; i.e tqe The time proportion coefficient of the empty service state of the q-th tour taxi under the condition of empty service to passenger service state; q (Q) fe The total quantity of the states of the passenger carrying and the empty service of the taxi is reserved for the tour taxi and the network; i.e qfe The time proportion coefficient occupied by the empty service state in the state of passenger carrying and empty service of the qth taxi;
the taxi demand in the space unit is taxi travel orders generated in unit time by the space unit; the taxi demand in each space unit is calculated according to the following formula:
D＝Q tef +Q ief
wherein D is the demand of taxi in the space unit; q (Q) tef The number of states is the number of empty cars of the tour taxi to the passenger service; q (Q) ief Initiating a total amount for a network-bound taxi order;
s4, screening space units according to the demand of the taxi, and eliminating the space units with the demand of less than 3;
s5, determining a calculation period according to the taxi demand in the space units, calculating taxi service acquisition indexes in the space units after screening in the step S4, and weighting the taxi service acquisition indexes in the space units according to the ratio of the taxi demand in the space units to obtain the taxi service acquisition indexes in the research area;
the method for determining the calculation period comprises the following steps:
T＝{t|D t(90％) ≥3,D t(95％) ＜3,t≥5(min)}
wherein T is a calculation period; d (D) t(90％) 、D t(95％) The average taxi demand of each space unit in the period t is respectively a 90 th and 95 th fractional value when the average taxi demand of each space unit in the period t is ordered from big to small in the period of 6:00-22:00 of any working day of the current year;
calculating taxi service acquisition indexes in each space unit according to a 3-time calculation period, wherein the calculation formula is as follows:
I i ＝D i /S i
wherein I is i Obtaining an index for taxi service in the ith space unit;
D i for the taxi demand in the ith space unit, for the sum of taxi demand in 3 calculation cycle periods of the space unit, the calculation formula is as follows:
wherein D is i(j) Taxi demand for the ith space unit in the jth calculation cycle period;
S i for the supply amount of the taxi in the ith space unit, calculating the average value of the supply amount of the taxi in the period of 3 cycles for the space unit, wherein the calculation formula is as follows:
wherein S is i(j) Taxi supply amount for the ith space unit in the jth calculation cycle period;
the calculation formula of the taxi service acquisition index in the research area is as follows:
wherein I is a taxi service acquisition index in the research area, D i For taxi demand in the ith space unit, I i Obtaining an index for taxi service in the ith space unit;
s6, evaluating the supply and demand states of the taxis in the research area according to the taxi service acquisition index in the research area obtained in the step S5; the specific contents are as follows: when I is more than 0 and less than or equal to 0.12, the study area is easy to drive; when I is more than 0.12 and less than or equal to 0.35, the study area is easier to drive; when I is more than 0.35 and less than or equal to 0.60, the study area is slightly hard to drive; when I is more than 0.60 and less than or equal to 1.1, the vehicle is difficult to drive in the research area; when 1.1 is less than I, the study area is severely hard to drive.
2. An electronic device for evaluating the supply and demand states of a taxi, comprising a processor and a memory, wherein the memory stores a computer program executable by the processor, and the electronic device is characterized in that the processor implements the taxi supply and demand state evaluation method based on the taxi service acquisition index as set forth in claim 1 when executing the computer program.
3. A computer-readable storage medium having stored thereon a computer program, wherein the computer program, when executed by a processor, implements the taxi service acquisition index-based taxi supply and demand state evaluation method according to claim 1.
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