CN116739322A - Taxi supply and demand assessment method, equipment and media based on service acquisition index - Google Patents

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

Taxi supply and demand assessment methods, equipment and media based on service acquisition index

Technical field

The present invention relates to taxi service acquisition matching evaluation technology, and more specifically, to a taxi supply and demand evaluation method, equipment and medium based on service acquisition index.

Background technique

As one of the main modes of transportation that supplements urban public transportation, taxis play an important role in urban transportation due to their fast and convenient characteristics. For transportation hubs and important business districts, areas where taxi services have always been criticized, establishing analytical indicators that reflect service acquisition in real time will provide a basis for taxi capacity dispatching, which is of great significance to improving the convenience of residents' travel.

Current taxis have many problems such as low loading rate, high empty load rate, and long waiting time for passengers. At this stage, a method for taxis to determine their service matching degree in real time from a spatial perspective has not yet been established. Generally, an overview of the overall situation is obtained through positioning data location , but the positioning data distribution can only generally reflect the "dense" and "sparse" quantity distribution. Based on the positioning data, or using the number of rides as an indicator, it is difficult to conclude that it is a taxi without further analysis and processing. Management and control guidance.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the existing technology and propose a taxi supply and demand assessment method, equipment and medium based on a service acquisition index, which can evaluate the matching degree of taxi service acquisition in a region in real time.

The object of the present invention is achieved through the following technical solutions.

A taxi supply and demand status assessment method based on the taxi service acquisition index, including the following processes:

S1. Clean the taxi operation data in the study area and eliminate erroneous data;

S2. Combine the taxi operating speed and the distance traveled per unit time to divide the research area into spatial units of the same size;

S3. Determine the taxi operation status based on the taxi operation data cleaned in step S1, and calculate the taxi supply and taxi demand in each space unit in step S2;

S4. Screen the space units according to the demand for taxis, and exclude space units with a demand for taxis less than 3;

S5. Determine the calculation period based on the demand for taxis in the space unit, calculate the taxi service acquisition index in each space unit filtered in step S4, and calculate the rental car service in each space unit according to the proportion of the demand for taxis in each space unit. The car service access index is weighted to obtain the taxi service access index in the study area;

S6. Based on the taxi service acquisition index in the study area obtained in step S5, evaluate the taxi supply and demand status in the study area.

In the above evaluation method, the taxis in step S1 include cruising taxis and online taxis, the taxi operation data includes cruising taxi operation data and online taxi operating data, and the cruising taxi operation data includes Positioning data, empty and heavy vehicle data, and order data of cruising taxis. The online taxi operation data includes positioning data, order initiation data, and order success data of online taxis.

In the above evaluation method, the cleaning process of taxi operation data described in step S1 includes the following:

S1.1 Screening for severe spatial position deviation: Based on the longitude and latitude data of taxi positioning data, compare it with the longitude and latitude range in the study area, and filter the positioning data whose longitude and latitude deviate from the range of the study area. to eliminate;

S1.2 Path coordinate deviation screening: For the positioning data of the same taxi, the point path is drawn according to the positioning data generation time, and the positioning points that cause a sudden shift in the drawn path are deleted.

In the above evaluation method, step S2 divides the study area into spatial units of the same size. The specific contents are as follows:

S2.1 Take 1.2 times the distance traveled by the taxi per unit time as the inner diameter of the space unit to determine the size of the space unit;

S2.2 Consider the fit with the residential area, commercial area, and office area, and determine the shape of the spatial unit. The spatial units are all regular polygons;

S2.3 According to the determined shape and inner diameter, define the study area into regular polygonal space units of the same size.

In the above evaluation method, the judgment process of the taxi operating status in step S3: through the numerical conversion of the "vehicle status" field of the cruise taxi, the numerical value of the "order initiation data" and "order success data" of the online taxi Conversion, the taxi's operating status transformation within a unit time is divided into carrying passengers → empty, carrying passengers → carrying passengers, empty → empty, empty → carrying passengers, and the taxi operating status is judged according to the status changes. ;

The supply of taxis in a spatial unit is the number of taxis that provide services to travelers in a unit of time; the supply of taxis in each spatial unit is calculated according to the following formula:

in, It is the supply of taxis in the spatial unit; Empty taxis for cruise taxis and online taxis → the sum of the number of empty taxis in service status; Empty → Passenger Service Status Quantity for Cruise Taxi; for the first The proportional coefficient of the empty service state of a cruising taxi → the empty service state in the passenger service state; The total number of passengers carried by cruise taxis and online taxis → empty service status; for the first The proportion coefficient of the time that a taxi carries passengers → the empty service state is in the empty service state;

The demand for taxis in a space unit is the number of taxi travel orders generated by the space unit in unit time; the demand for taxis in each space unit is calculated according to the following formula:

in, is the demand for taxis in the space unit; Empty → Passenger Service Status Quantity for Cruise Taxi; The total number of online taxi booking orders initiated.

In the above evaluation method, the determination method of the calculation period in step S5 is:

Among them, T is the calculation period; , respectively, select the period from 6:00 to 22:00 on any working day in the current year, and each spatial unit is in the period The 90th and 95th percentile values of the average taxi demand in the region in ascending order;

Calculate the taxi service acquisition index in each spatial unit according to a three-fold calculation period. The calculation formula is:

in, for the first Taxi service acquisition index within a spatial unit;

for the first The demand for taxis in a space unit is the sum of the demand for taxis in the three calculation periods of the space unit. The calculation formula is:

Among them, D _i(j) is the demand for taxis in the i-th spatial unit in the j-th calculation period;

for the first The supply of taxis in a spatial unit is the average of the supply of taxis in the three calculation periods of the spatial unit. The calculation formula is:

Among them, S _i(j) is the supply of taxis in the i-th spatial unit in the j-th calculation period;

The formula for calculating the taxi service acquisition index in the study area is:

in, Obtain index for taxi services in the study area, for the first The demand for taxis in a spatial unit, for the first Taxi service acquisition index within a spatial unit.

In the above evaluation method, step S6 evaluates the supply and demand status of taxis in the study area. The specific content is: when 0<I≤0.12, it means that it is easy to take a taxi in the study area; when 0.12<I≤0.35, it means that the study area is relatively easy to take a taxi. When 0.35＜I≤0.60, it means that it is slightly difficult to get a taxi in the study area; when 0.60＜I≤1.1, it means that it is moderately difficult to get a taxi in the study area; when 1.1＜I, it means that it is seriously difficult to get a taxi in the study area.

An electronic device for taxi supply and demand status assessment, including a processor and a memory. The memory stores a computer program that can be executed by the processor. When the processor executes the computer program, any one of the above is implemented. The taxi supply and demand status assessment method based on the taxi service acquisition index is described.

A computer-readable storage medium has a computer program stored thereon. When the computer program is executed by a processor, it implements any one of the above-mentioned taxi supply and demand status assessment methods based on the taxi service acquisition index.

Compared with the existing technology, the beneficial effects brought by the technical solution of the present invention are:

This invention combines the Internet and taxi operation data to determine the taxi operation status, calculates the taxi service acquisition index, and intuitively reflects the matching degree of regional taxi vehicle distribution and passenger demand from the spatial dimension. According to the taxi service acquisition index, the taxi can be directly evaluated Evaluating the supply and demand status plays an important guiding role in scheduling taxi capacity and improving residents’ travel convenience.

Description of drawings

Figure 1 is a flow chart of the taxi supply and demand status assessment method based on the taxi service acquisition index of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

This invention proposes a taxi service acquisition index calculation method, which reflects the matching degree of taxi vehicle distribution and passenger demand from the spatial dimension, aiming to feed back the spatial distribution of taxis in the study area, the spatial distribution of passenger ride demand, and both. The degree of matching should guide taxi service organizations to avoid excessive concentration, which would lead to a serious spatial imbalance in taxi service access.

As shown in Figure 1, the taxi supply and demand status assessment method of the present invention based on the taxi service acquisition index specifically includes the following steps:

S1: Clean the taxi operation data in the study area and eliminate erroneous data.

Wherein, the taxi includes cruising taxis and online taxis, the taxi operation data includes cruising taxi operation data and online taxi operating data, and the cruising taxi operation data includes the positioning data of cruising taxis , empty and heavy vehicle data, and order data. The online taxi-hailing operation data includes online taxi-hailing positioning data, order initiation data, and order success data.

Among them, the cleaning process of the taxi operation data includes the following two aspects:

S1.1 Screening for severe spatial position deviation: Based on the longitude and latitude data of taxi positioning data, compare it with the longitude and latitude range in the study area, and filter the positioning data whose longitude and latitude deviate from the range of the study area. Cull.

S1.2 Path coordinate deviation screening: For the positioning data of the same taxi, the point path is drawn according to the positioning data generation time, and the positioning points that cause a sudden shift in the drawn path are deleted.

S2: Based on the taxi operating speed and the distance traveled per unit time, the research area is divided into several spatial units of the same size.

The study area is demarcated in the form of spatial units, and 1.2 times the distance traveled by a taxi per unit time is used as the inner diameter of the spatial unit to determine the size of the spatial unit. Considering the fit with the residential area, commercial area, and office area, the shape of the space unit is determined. The space units are all regular polygons. According to the determined shape and inner diameter, the study area is divided into regular polygonal spatial units of the same size, which facilitates direct measurement of the specific size of the spatial area from the map.

S3: Determine the taxi operation status based on the cleaned taxi operation data, and calculate the taxi supply and taxi demand in each spatial unit.

The process of judging the taxi operating status: through the numerical conversion of the "vehicle status" field of the cruise taxi, and the numerical conversion of the "order initiation data" and "order success data" of the online taxi, the real-time operating status of the taxi is obtained , the operating status transition of taxis within unit time is divided into four types: carrying passengers → empty, carrying passengers → carrying passengers, empty → empty, empty → carrying passengers. The operating status of taxis is analyzed according to the status changes. Make judgments.

The taxi supply and taxi demand in each space unit are calculated based on the operating status of taxis providing services in each space unit.

The supply of taxis in a certain space unit is the number of taxis that can provide services to travelers in the space unit per unit time. From the perspective of service availability, the status of taxis that can provide services to space units is three: carrying passengers → empty, empty → empty, and empty → carrying passengers. The number of vehicles in the above three categories of states is added up to determine the supply of the corresponding space unit. The supply of taxis in each spatial unit is calculated according to the following formula:

in, It is the supply of taxis in the spatial unit; Empty taxis for cruise taxis and online taxis → the sum of the number of empty taxis in service status; Empty → Passenger Service Status Quantity for Cruise Taxi; for the first The proportional coefficient of the empty service state of a cruising taxi → the empty service state in the passenger service state; The total number of passengers carried by cruise taxis and online taxis → empty service status; for the first The proportion coefficient of the time occupied by the empty service state when a taxi carries passengers → empty service state.

The demand for taxis in a certain space unit is the number of taxi travel demands generated by the space unit in unit time, and the number of taxi travel orders generated by the space unit in unit time is regarded as the demand. The status of a taxi that can be used as demand is empty → loaded with passengers. Vehicles in this status are used as supply and converted into demand per unit time. They are counted as 1 demand and included in the space unit to which they transition. Inside.

The number of taxi travel orders generated in a space unit per unit time is regarded as the demand for taxis in that space unit. The demand for taxis in each space unit is calculated according to the following formula:

in, is the demand for taxis in the space unit; Empty → Passenger Service Status Quantity for Cruise Taxi; The total number of online taxi booking orders initiated.

S4. To prevent unrepresentative results from affecting the final calculation results, screen spatial units based on taxi demand and exclude spatial units with small taxi demand, that is, exclude taxi demand for a single spatial unit less than 3 per unit time. The spatial unit is not included in the calculation range of the taxi service acquisition index in the study area.

S5. Determine the calculation period based on the demand for taxis in the space unit, calculate the filtered taxi service acquisition index in each space unit, and calculate the taxi service acquisition index in each space unit according to the proportion of taxi demand in each space unit. The index is weighted to obtain the taxi service access index in the study area.

The calculation period is determined by:

Among them, T is the calculation period. , respectively, select the period from 6:00 to 22:00 on any working day in the current year, and each spatial unit is in the period The 90th and 95th percentile values when the average taxi demand in the period is sorted from large to small; Specific process: Using period t as the unit time, select any working day in the current year from 6:00 to 22:00 The period is divided into multiple unit times, the taxi demand of each spatial unit in each unit time is calculated, and the average is obtained to obtain the period of each spatial unit. The average taxi demand within the city is sorted from large to small, and the 90th and 95th percentile values are selected.

When calculating the taxi service acquisition index in each spatial unit, the taxi service acquisition index needs to be calculated according to 3 times the calculation period. The calculation formula is:

in, for the first Taxi service acquisition index within a spatial unit.

for the first The demand for taxis in a space unit is the sum of the demand for taxis in the three calculation periods of the space unit. The calculation formula is:

Among them, D _i(j) is the demand for taxis in the i-th spatial unit in the j-th calculation period.

for the first The supply of taxis in a spatial unit is the average of the supply of taxis in the three calculation periods of the spatial unit. The calculation formula is:

Among them, S _i(j) is the supply of taxis in the i-th spatial unit in the j-th calculation period.

When calculating the taxi service acquisition index in the study area, the demand proportion coefficient needs to be considered for the taxi service acquisition index in each spatial unit. The calculation formula is:

in, Obtain index for taxi services in the study area, for the first The demand for taxis in a spatial unit, for the first Taxi service acquisition index within a spatial unit.

S6. Based on the obtained taxi service acquisition index in the study area, evaluate the supply and demand status of taxis in the study area: when 0<I≤0.12, it means that the study area is easy to take taxis; when 0.12<I≤0.35, it means that the study area It is easier to get a taxi; when 0.35＜I≤0.60, it means that it is slightly difficult to get a taxi in the study area; when 0.60＜I≤1.1, it means that it is moderately difficult to get a taxi in the study area; when 1.1＜I, it means that it is seriously difficult to get a taxi in the study area.

For example, standardize the taxi service acquisition index in the study area according to the 20%, 40%, 60%, 80%, and 100% quantiles from small to large. The following is given: Table 1 shows the evaluation criteria for taxi supply and demand status.

Table 1 Correspondence between taxi service acquisition index standards and supply and demand status

Taxi Service Get Index Calculated Value 0＜I≤0.12 0.12＜I≤0.35 0.35＜I≤0.60 0.60＜I≤1.1 1.1＜I The taxi service acquisition index is sorted from small to large to divide the quantile segments. 0-20% 20-40% 40-60% 60-80% 80-100% Taxi supply and demand status Easy to take a taxi Easier to take a taxi Slightly difficult to take a taxi Moderately difficult to get a taxi Seriously difficult to get a taxi

The present invention proposes an electronic device for taxi supply and demand status assessment, which includes a processor and a memory. The memory stores a computer program that can be executed by the processor. When the processor executes the computer program, the present invention is implemented. The taxi supply and demand status assessment method based on the taxi service acquisition index.

The present invention also proposes a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the taxi supply and demand status assessment method based on the taxi service acquisition index of the present invention is implemented.

Although the functions and working processes of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific functions and working processes. The above-mentioned specific implementations are only illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill can also make many forms without departing from the spirit of the present invention and the scope protected by the claims, and these all fall within the protection of the present invention.

Claims (9)

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;

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.

2. The method for evaluating the supply and demand states of a taxi based on the taxi service acquisition index according to claim 1, wherein the taxi in step S1 includes a patrol taxi and a network offer taxi, the taxi operation data includes a patrol taxi operation data including a positioning data of the patrol taxi, an empty taxi data, an order data, and a network offer taxi operation data including a positioning data of the network offer taxi, an order initiation data, an order success data.

3. The taxi service acquisition index-based taxi supply and demand state evaluation method according to claim 1, wherein the cleaning process of the taxi operation data in step S1 includes the following:

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.

4. The taxi service acquisition index-based taxi supply and demand state evaluation method according to claim 1, wherein in step S2, the study area is defined 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.

5. The taxi service acquisition index-based taxi supply and demand state evaluation method according to claim 1, wherein the taxi operation state judgment process in step S3: 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; />For patrol taxiVehicle-passenger service state number; />Is->The 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 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.

6. The taxi based on taxi service acquisition index according to claim 1The supply and demand state evaluation method is characterized in that the calculation period determination method in step S5 is as follows:wherein T is a calculation period; />、/>Each space unit is in period +.>The average taxi demand in the range is 90% and 95% of the values in the order from big to small;

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->Obtaining an index of taxi service in each space unit;

is->The 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 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 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->Obtaining an index for taxi service in a research area, < > for>Is->Taxi demand in individual space units, < > taxi>Is->Taxi service acquisition index within a single space unit.

7. The method for evaluating the supply and demand states of taxis based on the taxi service acquisition index as claimed in claim 1, wherein in step S6, the supply and demand states of taxis in the research area are evaluated, specifically comprising: 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.

8. An electronic device for evaluating the supply and demand states of a taxi, comprising a processor and a memory, the memory having stored thereon a computer program executable by the processor, characterized in that the processor implements the taxi supply and demand state evaluation method based on a taxi service acquisition index as claimed in any one of claims 1 to 7 when executing the computer program.

9. A computer-readable storage medium having stored thereon a computer program, wherein the computer program, 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 preceding claims 1 to 7.