CN106781460A - A kind of road section traffic volume state determines method and device - Google Patents

A kind of road section traffic volume state determines method and device Download PDF

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Publication number
CN106781460A
CN106781460A CN201611090785.1A CN201611090785A CN106781460A CN 106781460 A CN106781460 A CN 106781460A CN 201611090785 A CN201611090785 A CN 201611090785A CN 106781460 A CN106781460 A CN 106781460A
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traffic behavior
characteristic parameter
traffic
default characteristic
default
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CN106781460B (en
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杨珍珍
郭胜敏
李成宝
孙亚夫
夏曙东
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BEIJING PALMGO INFORMATION TECHNOLOGY Co Ltd
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BEIJING PALMGO INFORMATION TECHNOLOGY Co Ltd
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    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/01Detecting movement of traffic to be counted or controlled
    • G08G1/0104Measuring and analyzing of parameters relative to traffic conditions
    • G08G1/0125Traffic data processing
    • G08G1/0129Traffic data processing for creating historical data or processing based on historical data
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/01Detecting movement of traffic to be counted or controlled
    • G08G1/0104Measuring and analyzing of parameters relative to traffic conditions
    • G08G1/0125Traffic data processing
    • G08G1/0133Traffic data processing for classifying traffic situation

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  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)

Abstract

The embodiment of the present invention discloses a kind of road section traffic volume state and determines method and device.Methods described includes:According to default traffic behavior grade, the traffic historical data sample to target road section carries out traffic behavior grading;Obtain after being graded through traffic behavior, each default characteristic parameter in the corresponding traffic historical data sample of each traffic behavior grade;According to each default characteristic parameter and its corresponding traffic behavior grade, the corresponding relation of the default characteristic parameter and traffic behavior grade is obtained;The current each default characteristic parameter of target road section is obtained, and according to the default characteristic parameter and the corresponding relation of traffic behavior grade, obtains the current traffic behavior grade of target road section.Described device is based on methods described, and methods described can accurately determine the traffic behavior of target road section, and then solve target road section congestion wrong report problem.

Description

A kind of road section traffic volume state determines method and device
Technical field
The present invention relates to intelligent transportation field, and in particular to a kind of road section traffic volume state determines method and device.
Background technology
With developing rapidly for intelligent transportation system technology, increasing city establishes advanced traffic-information service System.Real time traffic data is obtained and by integrated treatment by data collecting system, transportation information service systems can be used for pre- Test cross is through-flow, and issues real-time road condition information by network, broadcast, mobile phone, variable message board or on-vehicle navigation apparatus etc., to tie It is that traveler plans optimal path to close transport information.Additionally, transport information can provide traffic control and management for traffic control department Foundation, for roading department road equipment of making rational planning for provides reference frame, reaches alleviation traffic congestion, the mesh of energy-saving and emission-reduction 's.
There is very big difference in influence and ordinary road of the special road sections such as signal lamp, gateway, charge station to traffic behavior. For example there is the crossing of traffic lights, when vehicle runs into red light, that is, unblock a road, vehicle still needs parking waiting, if Processing system is left intact, and the road conditions of waiting signal lamp can falsely determine that to be congestion when will be unimpeded, causes the friendship of mistake Logical state, therefore, the traffic behavior in signal lamp coverage needs specially treated.
The patent of Publication No. CN102280031A (2011.12.14) proposes that a kind of crossing based on floating car data is handed over Logical state identification method, the method is based on crossing traffic signal controlling cycle duration, and the threshold value according to setting is predicted and sentences Disconnected traffic behavior.Because Signalized control cycle duration not immobilizes, for example traffic-police can be according to actual traffic shape State changes Signalized control cycle duration, or induction type signal lamp can be automatically according to magnitude of traffic flow Regulate signal lamp controlling cycle Duration.Therefore the crossing traffic state recognition method based on Signalized control cycle duration is implemented and is difficult fixed light control Cycle duration processed, is difficult to realize in actual applications.
The patent application of Publication No. CN101593431 (2009.12.02) proposes a kind of vehicular traffic of auto-control crossing The method of state, its reasonable traveling according to the distance between current crossing continuous vehicle platoon more long, each vehicle less than setting Distance and judge the track congestion less than the reasonable travel speed of setting in halted state or travel speed.So And, predetermined threshold value is less than merely with travel speed, judge congestion in road situation without considering other factors such as time etc., It is irrational.
The patent application of Publication No. CN101470956 (2009.07.01) proposes a kind of using ground induction coil detection crossing The simple and easy method of congestion status and traffic light control system in this way.The method is in crossing and/or crossing Whether embedded multiple ground induction coils on the road of adjacent edges, detection vehicle number exceedes the quantitative criteria of congestion, and when lasting When time meets or exceeds the time standard for assert congestion, then crossing congestion is judged.However, buried on road feeling line multiplely Not only input cost is high for circle, and can unavoidably ground-to-ground face damages.The method does not have practical prospect.
Therefore, the traffic behavior of target road section how is accurately determined, and then solves target road section congestion wrong report problem, tool It is of great significance.
The content of the invention
For defect of the prior art, the embodiment of the present invention provides a kind of road section traffic volume state and determines method and device.
On the one hand, the embodiment of the present invention proposes that a kind of road section traffic volume state determines method, including:
According to default traffic behavior grade, the traffic historical data sample to target road section carries out traffic behavior grading;
Obtain after being graded through traffic behavior, each default spy in the corresponding traffic historical data sample of each traffic behavior grade Levy parameter;
According to each default characteristic parameter and its corresponding traffic behavior grade, the default characteristic parameter is obtained With the corresponding relation of traffic behavior grade;
The current each default characteristic parameter of target road section is obtained, and according to the default characteristic parameter and traffic behavior etc. The corresponding relation of level, obtains the current traffic behavior grade of target road section;
Wherein, the default characteristic parameter is used to represent the transport condition of vehicle, and the default characteristic parameter includes: The stop frequency of vehicle in unit interval, stop and run at a low speed duration, stop and run at a low speed distance.
The road section traffic volume state that the embodiment of the present invention is proposed determines method, due to the historical traffic state according to target road section Data, generate the corresponding relation of default characteristic parameter and traffic behavior, therefore, the corresponding relation have high accuracy with It is representative.Afterwards, then the default characteristic parameter current by collecting target road section, and according to the corresponding relation tried to achieve mesh is obtained The current traffic behavior in mark section, therefore, the traffic behavior for getting has high accuracy.
On the other hand, the embodiment of the present invention also proposes a kind of road section traffic volume state determination device, it is characterised in that including:
Condition evaluation module, for according to default traffic behavior grade, to the traffic historical data sample of target road section Carry out traffic behavior grading;
Parameter acquisition module, for obtaining and being graded through traffic behavior after, the corresponding traffic history number of each traffic behavior grade According to each default characteristic parameter in sample;
Relationship determination module, for according to each default characteristic parameter and its corresponding traffic behavior grade, obtaining The corresponding relation of the default characteristic parameter and traffic behavior grade;
State determining module, for obtaining the current each default characteristic parameter of target road section, and according to the default spy The corresponding relation of parameter and traffic behavior grade is levied, the current traffic behavior grade of target road section is obtained;
Wherein, the default characteristic parameter is used to represent the transport condition of vehicle, and the default characteristic parameter includes: The stop frequency of vehicle in unit interval, stop and run at a low speed duration, stop and run at a low speed distance.
The road section traffic volume state determination device that the embodiment of the present invention is proposed, due to the historical traffic state according to target road section Data, generate the corresponding relation of default characteristic parameter and traffic behavior, therefore, the corresponding relation have high accuracy with It is representative.Afterwards, then the default characteristic parameter current by collecting target road section, and according to the corresponding relation tried to achieve mesh is obtained The current traffic behavior in mark section, therefore, the traffic behavior for getting has high accuracy.
Brief description of the drawings
Fig. 1 is the schematic flow sheet that road section traffic volume state of the present invention determines embodiment of the method;
Fig. 2 is the structural representation of road section traffic volume state determination device embodiment of the present invention.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is explicitly described, it is clear that described embodiment be the present invention A part of embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not having The every other embodiment obtained under the premise of creative work is made, the scope of protection of the invention is belonged to.
Fig. 1 is the schematic flow sheet that road section traffic volume state of the present invention determines embodiment of the method, and referring to Fig. 1, the present embodiment is public Open a kind of road section traffic volume state and determine method, including:
S1, according to default traffic behavior grade, traffic behavior is carried out to the traffic historical data sample of target road section and is commented Level;
S2, obtain and graded through traffic behavior after, it is each default in the corresponding traffic historical data sample of each traffic behavior grade Characteristic parameter;
S3, according to each default characteristic parameter and its corresponding traffic behavior grade, obtain the default feature The corresponding relation of parameter and traffic behavior grade;
S4, the current each default characteristic parameter of acquisition target road section, and according to the default characteristic parameter and traffic shape The corresponding relation of state grade, obtains the current traffic behavior grade of target road section;
Wherein, the default characteristic parameter is used to represent the transport condition of vehicle, and the default characteristic parameter includes: The stop frequency of vehicle in unit interval, stop and run at a low speed duration, stop and run at a low speed distance.
The road section traffic volume state that the embodiment of the present invention is proposed determines method, due to the historical traffic state according to target road section Data, generate the corresponding relation of default characteristic parameter and traffic behavior, therefore, the corresponding relation have high accuracy with It is representative.Afterwards, then the default characteristic parameter current by collecting target road section, and according to the corresponding relation tried to achieve mesh is obtained The current traffic behavior in mark section, therefore, the traffic behavior for getting has high accuracy.
It should be noted that the executive agent of this method embodiment is computer.
Specifically, in step sl, the default traffic behavior grade can be set to 3:Unimpeded, slow, congestion.If Further subdivision, can also be divided into 4 grades by traffic behavior:It is unimpeded, slow, compared with congestion, heavy congestion.May be appreciated It is that the grade of traffic behavior can be divided according to actual needs, and the embodiment of the present invention is not construed as limiting to this.
The traffic historical data sample of the target road section can be the traffic data in target road section preset time range.
For example, it may be before target road section current time in 2 months, the traffic historical data at each moment, or Before target road section current time in 2 months, the traffic historical data of special time period, such as morning peak time period 7:00-9:00, And the evening peak time period 18:00-20:00 traffic historical data.Certainly, the traffic historical data sample of the target road section Can be adjusted according to actual needs, the present embodiment is not construed as limiting to this.
The traffic historical data sample to target road section carries out traffic behavior grading be may include:By transferring target road The image data that the imaging monitoring device of section is recorded, and default traffic behavior grade is combined, the traffic to target road section is gone through History data sample carries out traffic behavior grading.
In step s 2, after the traffic behavior grading to traffic historical data sample is completed, each traffic behavior grade is then At least part of traffic historical data sample is had to correspond to therewith.
For example, certain day morning 7 before target road section current time in 2 months:00-7:10, the traffic shape of target road section State is slow, then the traffic data sample of the time period is one of corresponding part traffic historical data sample of slow grade.
Further, it is determined that after the corresponding traffic historical data sample of each traffic behavior grade, then obtaining the traffic Each default characteristic parameter in historical data sample.
The default characteristic parameter includes:The stop frequency of the vehicle in unit interval, stop and run at a low speed duration, Stop and run at a low speed distance.
Wherein, the stop frequency refers to that target road section causes the number of times that the vehicle stops within the unit interval because of congestion, when Between of short duration (such as less than 5 seconds) or long-time exception parking (such as traffic accident) be not counted in stop frequency.
The parking and run at a low speed duration and refer to that vehicle causes the vehicle stop within the unit interval and low speed row because of congestion The time span sailed.Under normal circumstances, congestion is more serious, stops and to run at a low speed the time more long.
The parking and run at a low speed distance and refer to because caused by congestion, the vehicle is stopped and low speed within the unit interval The distance of traveling.Under normal circumstances, congestion is more serious, congestion scope is bigger, vehicle parking and to run at a low speed distance more long.
It is understood that in the corresponding traffic historical data sample of each traffic behavior grade, in any time period Any vehicle for, its default characteristic parameter is not necessarily equal to the default feature of any other vehicles in the time period Parameter, i.e.,:Each traffic behavior grade to that should have different default characteristic parameters, stop frequency in each vehicle unit time, Duration is stopped and run at a low speed, stop and runs at a low speed distance and be different.
In step s3, it is described according to the default characteristic parameter and its corresponding traffic behavior grade, obtain described Default characteristic parameter includes with the corresponding relation of traffic behavior grade:
S31, according to default interval threshold, the default characteristic parameter is divided into the numerical intervals of predetermined number;
Specifically, if representing parking with ρ and running at a low speed the numerical intervals of duration t, dash when will stop and running at a low speed It is divided into M numerical intervals, θ1、θ2、…、θM-1Represent parking and run at a low speed the default interval threshold of duration, then:
Wherein, θ1< θ2< ... < θM-1
It is H numerical intervals by stop frequency n points if representing the numerical intervals of stop frequency with σ,The default interval threshold of stop frequency n is represented, then:
Wherein,
If representing parking with γ and running at a low speed the numerical intervals apart from d, will stop and run at a low speed distance and be divided into N number of area Between, μ1、μ2、…、μN-1The stop frequency default interval thresholds of d are represented, then:
Wherein, μ1< μ2< ... < μN-1
If withDefault traffic behavior grade is represented, then
Wherein, K is the number of default traffic behavior grade.
S32, by multinomial preference pattern (Multinomial Logistic) algorithm with regress analysis method, obtain each described default Characteristic parameter numerical intervals combination correspondence traffic behavior grade probability;
Specifically, defineA length of ρ, stop frequency are σ, stop and low when representing the parking of vehicle and running at a low speed The traffic behavior grade of fast operating range γ,
By traffic behavior gradeUsed as reference category, then the multinomial selection of other traffic behavior grades is returned Model is:
In formula, β0、β1、β2、β3It is model coefficient.For reference category, all coefficients in model are zero, i.e.,
ProbabilityComputing formula is:
With the corresponding traffic behavior grade of most probable value represent parking and when running at a low speed a length of ρ, stop frequency be σ, Distance is stopped and run at a low speed for the numerical intervals of γ combine corresponding traffic behavior gradeSpecific formula for calculation is:
Every group of parking and the numerical intervals combination condition for running at a low speed duration, stop frequency, stopping and run at a low speed distance Under, the traffic behavior for having a corresponding traffic behavior, all numerical intervals combinations is taken together as the default spy The corresponding relation of parameter and traffic behavior grade is levied, it can be showed by form, it is specific as shown in table 1:
The default characteristic parameter of table 1 and traffic behavior grade mapping table
In step s 4, the characteristic parameter of target road section current preset can be obtained, and obtains its each numerical intervals, you can Contrasted with table 1 by by the combination of numerical intervals, get the current traffic behavior grade of target road section.
Specifically, the data sample of the vehicle travel situations of target road section current time predetermined number can be randomly selected, is obtained Each default characteristic parameter of those data samples is taken, the average value of all default characteristic parameters is then taken, that is, tries to achieve unit The average stop frequency of vehicle in time, it is average stop and run at a low speed duration, it is average stop and run at a low speed distance, and according to The combination of the numerical intervals belonging to those average values, contrasts by with table 1, gets current traffic behavior of target road section etc. Level.
Alternatively, the data sample of target road section current time all vehicle travel situations can be also obtained, and obtains those Each default characteristic parameter of data sample, then according to the combination of the corresponding numerical intervals of the default characteristic parameter of each vehicle, The traffic behavior grade of respective amount is obtained, occurs the maximum traffic shape of frequency in the traffic behavior grade for taking those respective amounts State grade, as the traffic behavior grade at target road section current time.
Fig. 2 is the structural representation of road section traffic volume state determination device embodiment of the present invention, and referring to Fig. 2, the present embodiment is public A kind of road section traffic volume state determination device is opened, including:
Condition evaluation module 1, for according to default traffic behavior grade, to the traffic historical data sample of target road section Carry out traffic behavior grading;
Parameter acquisition module 2, for obtaining and being graded through traffic behavior after, the corresponding traffic history number of each traffic behavior grade According to each default characteristic parameter in sample;
Relationship determination module 3, for according to each default characteristic parameter and its corresponding traffic behavior grade, obtaining The corresponding relation of the default characteristic parameter and traffic behavior grade;
State determining module 4, for obtaining the current each default characteristic parameter of target road section, and according to the default spy The corresponding relation of parameter and traffic behavior grade is levied, the current traffic behavior grade of target road section is obtained;
Wherein, the default characteristic parameter is used to represent the transport condition of vehicle, and the default characteristic parameter includes: The stop frequency of vehicle in unit interval, stop and run at a low speed duration, stop and run at a low speed distance.
The road section traffic volume state determination device that the embodiment of the present invention is proposed, due to the historical traffic state according to target road section Data, generate the corresponding relation of default characteristic parameter and traffic behavior, therefore, the corresponding relation have high accuracy with It is representative.Afterwards, then the default characteristic parameter current by collecting target road section, and according to the corresponding relation tried to achieve mesh is obtained The current traffic behavior in mark section, therefore, the traffic behavior for getting has high accuracy.
Specifically, the default traffic behavior grade can be set to 3:Unimpeded, slow, congestion.If further subdivision, Also traffic behavior can be divided into 4 grades:It is unimpeded, slow, compared with congestion, heavy congestion.It is understood that traffic behavior Grade can be divided according to actual needs, and the embodiment of the present invention is not construed as limiting to this.
The traffic historical data sample of the target road section can be the traffic data in target road section preset time range.
For example, it may be before target road section current time in 2 months, the traffic historical data at each moment, or Before target road section current time in 2 months, the traffic historical data of special time period, such as morning peak time period 7:00-9:00, And the evening peak time period 18:00-20:00 traffic historical data.Certainly, the traffic historical data sample of the target road section Can be adjusted according to actual needs, the present embodiment is not construed as limiting to this.
The Condition evaluation module 1 can be specifically for:The shadow recorded by the imaging monitoring device for transferring target road section As data, and default traffic behavior grade is combined, the traffic historical data sample to target road section carries out traffic behavior grading.
After the traffic behavior grading that Condition evaluation module 1 completes to traffic historical data sample, each traffic behavior grade At least part of traffic historical data sample is then had to correspond to therewith.
For example, certain day morning 7 before target road section current time in 2 months:00-7:10, the traffic shape of target road section State is slow, then the traffic data sample of the time period is one of corresponding part traffic historical data sample of slow grade.
Further, it is determined that after the corresponding traffic historical data sample of each traffic behavior grade, the parameter acquiring mould Block 2 then obtains each default characteristic parameter in the traffic historical data sample.
The default characteristic parameter includes:The stop frequency of the vehicle in unit interval, stop and run at a low speed duration, Stop and run at a low speed distance.
Wherein, the stop frequency refers to that target road section causes the number of times that the vehicle stops within the unit interval because of congestion, when Between of short duration (such as less than 5 seconds) or long-time exception parking (such as traffic accident) be not counted in stop frequency.
The parking and run at a low speed duration and refer to that vehicle causes the vehicle stop within the unit interval and low speed row because of congestion The time span sailed.Under normal circumstances, congestion is more serious, stops and to run at a low speed the time more long.
The parking and run at a low speed distance and refer to because caused by congestion, the vehicle is stopped and low speed within the unit interval The distance of traveling.Under normal circumstances, congestion is more serious, congestion scope is bigger, vehicle parking and to run at a low speed distance more long.
It is understood that in the corresponding traffic historical data sample of each traffic behavior grade, in any time period Any vehicle for, its default characteristic parameter is not necessarily equal to the default feature of any other vehicles in the time period Parameter, i.e.,:Each traffic behavior grade to that should have different default characteristic parameters, stop frequency in each vehicle unit time, Duration is stopped and run at a low speed, stop and runs at a low speed distance and be different.
The relationship determination module 3 specifically for:
According to default interval threshold, the default characteristic parameter is divided into the numerical intervals of predetermined number;
Specifically, if representing parking with ρ and running at a low speed the numerical intervals of duration t, dash when will stop and running at a low speed It is divided into M numerical intervals, θ1、θ2、…、θM-1Represent parking and run at a low speed the default interval threshold of duration, then:
Wherein, θ1< θ2< ... < θM-1
It is H numerical intervals by stop frequency n points if representing the numerical intervals of stop frequency with σ,The default interval threshold of stop frequency n is represented, then:
Wherein,
If representing parking with γ and running at a low speed the numerical intervals apart from d, will stop and run at a low speed distance and be divided into N number of area Between, μ1、μ2、…、μN-1The stop frequency default interval thresholds of d are represented, then:
Wherein, μ1< μ2< ... < μN-1
If withDefault traffic behavior grade is represented, then
Wherein, K is the number of default traffic behavior grade.
The relationship determination module 3 also particularly useful for:Returned by multinomial preference pattern (Multinomial Logistic) Return parser, obtain the probability of the combination correspondence traffic behavior grade of each default characteristic parameter numerical intervals;
Specifically, defineA length of ρ, stop frequency are σ, stop and low when representing the parking of vehicle and running at a low speed The traffic behavior grade of fast operating range γ,
By traffic behavior gradeUsed as reference category, then the multinomial selection of other traffic behavior grades is returned Model is:
In formula, β0、β1、β2、β3It is model coefficient.For reference category, all coefficients in model are zero, i.e.,
ProbabilityComputing formula is:
With the corresponding traffic behavior grade of most probable value represent parking and when running at a low speed a length of ρ, stop frequency be σ, Distance is stopped and run at a low speed for the numerical intervals of γ combine corresponding traffic behavior gradeSpecific formula for calculation is:
Every group of parking and the numerical intervals combination condition for running at a low speed duration, stop frequency, stopping and run at a low speed distance Under, the traffic behavior for having a corresponding traffic behavior, all numerical intervals combinations is taken together as the default spy The corresponding relation of parameter and traffic behavior grade is levied, it can be showed by form, it is specific as shown in table 1:
The default characteristic parameter of table 1 and traffic behavior grade mapping table
The state determining module 4 can obtain the characteristic parameter of target road section current preset, and obtain its each numerical value area Between, then contrasted with table 1 by by the combination of numerical intervals, get the current traffic behavior grade of target road section.
Specifically, the state determining module 4 can randomly select the vehicle traveling of target road section current time predetermined number The data sample of situation, obtains each default characteristic parameter of those data samples, then takes all default characteristic parameters Average value, that is, try to achieve the average stop frequency of vehicle in the unit interval, averagely stop and run at a low speed duration, averagely stop and low Fast operating range, and the numerical intervals according to belonging to those average values combination, contrasted by with table 1, get target road section Current traffic behavior grade.
Alternatively, the state determining module 4 can also obtain the number of target road section current time all vehicle travel situations According to sample, and each default characteristic parameter of those data samples is obtained, then according to the default characteristic parameter correspondence of each vehicle Numerical intervals combination, obtain respective amount traffic behavior grade, go out in the traffic behavior grade for taking those respective amounts The maximum traffic behavior grade of existing frequency, as the traffic behavior grade at target road section current time.
Finally it should be noted that:The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although The present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those within the art that:It still may be used Modified with to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic; And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and Scope.

Claims (6)

1. a kind of road section traffic volume state determines method, it is characterised in that including:
According to default traffic behavior grade, the traffic historical data sample to target road section carries out traffic behavior grading;
Obtain after being graded through traffic behavior, each default feature ginseng in the corresponding traffic historical data sample of each traffic behavior grade Number;
According to each default characteristic parameter and its corresponding traffic behavior grade, obtain the default characteristic parameter and hand over The corresponding relation of logical state grade;
The current each default characteristic parameter of target road section is obtained, and according to the default characteristic parameter and traffic behavior grade Corresponding relation, obtains the current traffic behavior grade of target road section;
Wherein, the default characteristic parameter is used to represent the transport condition of vehicle, and the default characteristic parameter includes:Unit The stop frequency of vehicle in time, stop and run at a low speed duration, stop and run at a low speed distance.
2. method according to claim 1, it is characterised in that described according to the default characteristic parameter and its corresponding Traffic behavior grade, obtain the default characteristic parameter includes with the corresponding relation of traffic behavior grade:
According to default interval threshold, each default characteristic parameter is divided into the numerical intervals of predetermined number;
Obtain the probability of the combination correspondence traffic behavior grade of each default characteristic parameter numerical intervals;
By the traffic behavior grade of the maximum probability, the combination as each default characteristic parameter numerical intervals is corresponding Traffic behavior grade;
According to the corresponding traffic behavior grade of combination of each default characteristic parameter numerical intervals, the default spy is obtained Levy the corresponding relation of parameter and traffic behavior grade.
3. method according to claim 2, it is characterised in that each default characteristic parameter numerical intervals of acquisition The probability of combination correspondence traffic behavior grade include:
By multinomial preference pattern algorithm with regress analysis method, the combination correspondence for obtaining each default characteristic parameter numerical intervals is handed over The probability of logical state grade.
4. a kind of road section traffic volume state determination device, it is characterised in that including:
Condition evaluation module, for according to default traffic behavior grade, the traffic historical data sample to target road section to be carried out Traffic behavior is graded;
Parameter acquisition module, for obtaining and being graded through traffic behavior after, the corresponding traffic historical data sample of each traffic behavior grade Each default characteristic parameter in this;
Relationship determination module, for according to each default characteristic parameter and its corresponding traffic behavior grade, obtaining described The corresponding relation of default characteristic parameter and traffic behavior grade;
State determining module, for obtaining the current each default characteristic parameter of target road section, and joins according to the default feature Number and the corresponding relation of traffic behavior grade, obtain the current traffic behavior grade of target road section;
Wherein, the default characteristic parameter is used to represent the transport condition of vehicle, and the default characteristic parameter includes:Unit The stop frequency of vehicle in time, stop and run at a low speed duration, stop and run at a low speed distance.
5. device according to claim 4, it is characterised in that the relationship determination module specifically for:
According to default interval threshold, each default characteristic parameter is divided into the numerical intervals of predetermined number;
Obtain the probability of the combination correspondence traffic behavior grade of each default characteristic parameter numerical intervals;
By the traffic behavior grade of the maximum probability, the combination as each default characteristic parameter numerical intervals is corresponding Traffic behavior grade;
According to the corresponding traffic behavior grade of combination of each default characteristic parameter numerical intervals, the default spy is obtained Levy the corresponding relation of parameter and traffic behavior grade.
6. device according to claim 5, it is characterised in that the relationship determination module also particularly useful for:
By multinomial preference pattern algorithm with regress analysis method, the combination correspondence for obtaining each default characteristic parameter numerical intervals is handed over The probability of logical state grade.
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CN110782659A (en) * 2019-09-09 2020-02-11 腾讯科技(深圳)有限公司 Road condition determining method, road condition determining device, server and storage medium
CN112598199A (en) * 2021-01-29 2021-04-02 杭州易龙安全科技有限公司 Monitoring and early warning method based on decision tree algorithm
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