WO2025025282A1 - Estimation method and system for cross-sectional traffic volume of expressway, and medium - Google Patents
Estimation method and system for cross-sectional traffic volume of expressway, and medium Download PDFInfo
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- WO2025025282A1 WO2025025282A1 PCT/CN2023/114465 CN2023114465W WO2025025282A1 WO 2025025282 A1 WO2025025282 A1 WO 2025025282A1 CN 2023114465 W CN2023114465 W CN 2023114465W WO 2025025282 A1 WO2025025282 A1 WO 2025025282A1
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/065—Traffic control systems for road vehicles by counting the vehicles in a section of the road or in a parking area, i.e. comparing incoming count with outgoing count
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- the present application relates to the technical field of highway cross-section traffic volume, and in particular to a method, medium and system for estimating highway cross-section traffic volume.
- Traffic volume forecasting can serve as an important basis for traffic decision-making, effectively control traffic, and improve the operating efficiency of road traffic.
- the embodiments of the present application provide a method, medium and system for estimating the cross-sectional traffic volume of a highway to solve the problem that the prior art does not fully utilize the statistical information of the entrance and exit toll stations of the highway and adopts the on-site manual survey method, resulting in large errors in the survey results of the cross-sectional traffic volume of the highway.
- a method for estimating the traffic volume of a highway section comprising:
- the traffic volume of each section of the road section to be measured is calculated based on the traffic volume of each entrance and each exit in the road section to be measured, as well as the traffic volume of the entrance outside the road section to be measured.
- a computer-readable storage medium on which computer program instructions are stored; when the computer program instructions are executed by a processor, a method for estimating highway section traffic volume as in the first aspect embodiment is implemented.
- a system for estimating highway section traffic volume comprising: a computer-readable storage medium as in the embodiment of the second aspect.
- the embodiment of the present application rationally utilizes the data of the entrances and exits of the expressway.
- the data utilized is easy to collect, which can not only accurately estimate the cross-sectional traffic volume of the corresponding section, but also avoid on-site detection, greatly reducing the consumption of manpower and material resources.
- the prediction method is relatively simple, with clear logic and steps, and is easy to form code, which greatly reduces the difficulty of learning, is conducive to promotion and application, and facilitates the development of a module specifically for calculating cross-sectional traffic volume in the existing highway big data platform system, laying the foundation for future highway management and decision-making.
- FIG1 is a flow chart of a method for estimating highway section traffic volume according to an embodiment of the present application
- FIG. 2 is a schematic diagram of a highway section.
- the embodiment of the present application discloses a method for estimating the traffic volume of a highway section. It should be understood that a highway includes two driving directions, namely, up and down. Therefore, the traffic flow is also divided into up and down.
- the traffic volume of a certain section of the embodiment of the present application is the sum of the up and down traffic volumes.
- the section of the embodiment of the present application refers to the section where the entrance and exit of the same position of the road section to be measured are located.
- the method of the embodiment of the present application includes the following steps:
- Step S101 Obtain the traffic volume at each entrance and each exit of the tested section of the expressway.
- the road section to be tested has n entrances A, B, ..., I, ..., N and n exits A′, B′, ..., I′, ..., N′.
- the entrances and exits outside the road section to be tested are represented by X and X′ respectively.
- z represent the traffic volume of an entrance in the section to be tested, and let j represent the number of the entrance and exit at a section in the section to be tested (it should be understood that the entrance and exit at the same section have the same number), then z j represents the traffic volume of the jth entrance in the section to be tested.
- z′ represent the traffic volume of an exit in the section to be tested, then z′ j represents the traffic volume of the jth exit in the section to be tested.
- j 1, 2, 3, ..., i, ...n, i ⁇ n.
- the traffic volume at each entrance and each exit within the road section to be tested can generally be obtained through statistics of vehicle information recorded at each entrance and exit.
- Step S102 Calculate the traffic volume of the entrance outside the road section to be tested according to the traffic volume of each entrance and each exit in the road section to be tested.
- the entrance outside the section to be tested refers to all entrances outside the section to be tested
- the exit outside the section to be tested refers to all exits outside the section to be tested. Since the entrances and exits outside the section to be tested are not within the scope of the entrances and exits within the section to be tested investigated in the embodiment of the present application, vehicles entering the highway from the entrance outside the section to be tested are vehicles of unknown direction, and vehicles entering the highway from the exit outside the section to be tested are vehicles of unknown direction. The vehicles leaving the highway are vehicles with unknown destinations, so the traffic volume at the entrance outside the section to be tested is unknown and needs to be calculated based on the known traffic volume at each entrance and exit within the section to be tested. Specifically, this step includes the following process:
- the traffic volume of each entrance and each exit in the road section to be tested is calculated.
- Vehicles that enter the highway from an entrance within the tested section cannot exit the highway from the exit located in the same section as the entrance.
- a vehicle that enters from entrance A cannot exit from entrance A'.
- the directions in which it can exit the highway are only B', C', ..., I', ..., N' and X', a total of n directions.
- a vehicle that enters from entrance B cannot exit from entrance B'.
- the directions in which it can exit the highway are only A', C', ..., I', ..., N' and X', a total of n directions. The same is true for other entrances.
- the probability of a vehicle traveling from entrance A to exit I' is Then the traffic flow from the highway exit I′ is Similarly, the traffic volume of vehicles driving from other entrances to exit I′ is The traffic volume entering the highway from entrance X outside the tested section is x, and the traffic can exit the highway from any exit within the tested section or directly pass through the tested section and exit the highway from exit X′ outside the tested section. There are n+1 directions in total, so the probability of exiting the highway from exit I′ is The traffic volume entering exit I' and leaving the highway is Based on the above analysis, an equation relationship between the traffic volume at each exit and the traffic volume at each entrance in the road section to be tested is established, as follows:
- xj represents the traffic volume of the entrance outside the tested section based on the jth exit in the tested section
- Step S103 Calculate the traffic volume of each section of the road section to be tested according to the traffic volume of each entrance and each exit in the road section to be tested and the traffic volume of the entrance outside the road section to be tested.
- this step includes the following process:
- the second total traffic volume of vehicles entering the highway from the entrance passes through the section where the selected entrance is located
- the third total traffic volume of vehicles entering the highway from a selected entrance within the section to be tested passes through the section where the selected entrance is located
- the fourth total traffic volume of vehicles entering the highway from an entrance after a selected entrance within the section to be tested passes through the section where the selected entrance is located.
- the traffic volume of vehicles entering the expressway from other entrances before entrance I passing through section II' can be obtained.
- the calculation formula for the first traffic volume Z1 of vehicles entering the expressway from the entrance before the selected entrance I in the section to be tested passing through section II' is as follows:
- the vehicle entering the expressway from the entrance X outside the section to be tested must exit the expressway from the exit I' to the exit N' of the section to be tested or the exit X' outside the section to be tested. Then the vehicle entering the expressway from the entrance outside the section to be tested passes through the second traffic section II'.
- the total quantity Z2 is calculated as follows:
- exit of a vehicle entering the expressway after the selected entrance I in the section to be tested and then exiting the expressway after passing through section I-I' must be any exit between exit A' and exit I' in the section to be tested.
- the traffic volume of vehicles entering the highway from entrance I+1 in the tested section passing through section II′ is
- the traffic volume of vehicles entering the highway from entrance I+2 in the tested section passing through section II′ is
- the traffic volume of section II' of the road section to be tested is the sum of the total of the above four traffic volumes.
- the calculation formula for the traffic volume of section II' is as follows:
- Z II′ Z 1 +Z 2 +Z 3 +Z 4 .
- an embodiment of the present application also provides a computer-readable storage medium, on which computer program instructions are stored; when the computer program instructions are executed by a processor, a method for estimating highway section traffic volume as in the above embodiment is implemented.
- an embodiment of the present application also provides a highway section traffic volume estimation system, including: a computer-readable storage medium as in the above embodiment.
- the embodiments of the present application make rational use of the data of the entrances and exits of the expressway.
- the data used are easy to collect, which can not only accurately estimate the cross-sectional traffic volume of the corresponding road section, but also avoid on-site detection, greatly reducing the consumption of manpower and material resources.
- the prediction method is relatively simple, with clear logic and steps, and is easy to form code, which greatly reduces the difficulty of learning, is conducive to promotion and application, and facilitates the development of a module specifically for calculating cross-sectional traffic volume in the existing highway big data platform system, laying the foundation for future highway management and decision-making.
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Abstract
Description
相关申请的交叉引用CROSS-REFERENCE TO RELATED APPLICATIONS
本申请要求于2023年08月01日提交中国专利局，申请号为202310961563.6，申请名称为“高速公路断面交通量的估计方法、介质及系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of the Chinese patent application filed with the China Patent Office on August 1, 2023, with application number 202310961563.6, and application name “Method, medium and system for estimating traffic volume in a highway section”, all contents of which are incorporated by reference in this application.
本申请涉及高速公路断面交通量技术领域，尤其涉及一种高速公路断面交通量的估计方法、介质及系统。The present application relates to the technical field of highway cross-section traffic volume, and in particular to a method, medium and system for estimating highway cross-section traffic volume.
随着社会经济的发展和城市规模的扩大，道路里程数与汽车保有量飞速增长，交通拥堵日益成为制约城市与经济发展的主要问题之一。交通量预测能够作为交通决策的重要依据，有效地进行交通控制，提高道路交通的运行效率。With the development of social economy and the expansion of urban scale, the road mileage and car ownership are growing rapidly, and traffic congestion has become one of the main problems restricting urban and economic development. Traffic volume forecasting can serve as an important basis for traffic decision-making, effectively control traffic, and improve the operating efficiency of road traffic.
目前道路断面交通量预测方法有时间序列分解法、指数平滑法、灰色预测方法等多种预测技术，充分利用了中、长期以及近期实测的交通量数据。但是，这些断面交通量预测方法较复杂，实用性不强，因此，如果要估算某路段断面交通量一般是派人去现场调查该断面车流量，或者用仪器去现场探测。但是人为现场调查的办法持续时间不够长，往往只能调查几天，不能持续全年观察，数据的片面性很强，而且野外的长时间工作对人的耐受性是极大的考验。At present, there are many prediction techniques for road section traffic volume prediction, such as time series decomposition method, exponential smoothing method, gray prediction method, etc., which make full use of medium-term, long-term and recent measured traffic volume data. However, these cross-section traffic volume prediction methods are relatively complex and not very practical. Therefore, if you want to estimate the cross-section traffic volume of a certain road section, you usually send people to the site to investigate the traffic volume of the section, or use instruments to detect on the spot. However, the manual on-site investigation method does not last long enough, and can often only be investigated for a few days, and cannot be observed throughout the year. The data is very one-sided, and long-term work in the field is a great test for people's tolerance.
发明内容Summary of the invention
本申请实施例提供一种高速公路断面交通量的估计方法、介质及系统，以解决现有技术没有充分利用高速公路入口和出口收费站统计的信息而采用现场人工调查的方式导致对高速公路的断面交通量的调查结果误差大的问题。The embodiments of the present application provide a method, medium and system for estimating the cross-sectional traffic volume of a highway to solve the problem that the prior art does not fully utilize the statistical information of the entrance and exit toll stations of the highway and adopts the on-site manual survey method, resulting in large errors in the survey results of the cross-sectional traffic volume of the highway.
第一方面，提供一种高速公路断面交通量的估计方法，包括： In a first aspect, a method for estimating the traffic volume of a highway section is provided, comprising:
获取高速公路的待测路段内的每一入口和每一出口的交通量；Obtain the traffic volume at each entrance and each exit within the tested section of the expressway;
根据待测路段内的每一入口和每一出口的交通量，计算得到待测路段外的入口的交通量；Calculate the traffic volume of the entrance outside the road section to be tested according to the traffic volume of each entrance and each exit in the road section to be tested;
根据待测路段内的每一入口和每一出口的交通量，以及，待测路段外的入口的交通量，计算待测路段的每一断面的交通量。The traffic volume of each section of the road section to be measured is calculated based on the traffic volume of each entrance and each exit in the road section to be measured, as well as the traffic volume of the entrance outside the road section to be measured.
第二方面，提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序指令；计算机程序指令被处理器执行时实现如第一方面实施例的高速公路断面交通量的估计方法。In a second aspect, a computer-readable storage medium is provided, on which computer program instructions are stored; when the computer program instructions are executed by a processor, a method for estimating highway section traffic volume as in the first aspect embodiment is implemented.
第三方面，提供一种高速公路断面交通量的估计系统，包括：如第二方面实施例的计算机可读存储介质。In a third aspect, a system for estimating highway section traffic volume is provided, comprising: a computer-readable storage medium as in the embodiment of the second aspect.
这样，本申请实施例，合理利用了高速公路出入口的数据，所利用的数据易于收集，不仅可以精确地估算相应路段的断面交通量，而且避免了现场探测，大大减少了人力物力消耗，该预测方法较为简单，逻辑明确、步骤清晰，易于形成代码，大大降低了学习难度，有利于推广应用，方便在现有的公路大数据平台系统中开发专门计算断面交通量的模块，为今后公路管理与决策打下基础。In this way, the embodiment of the present application rationally utilizes the data of the entrances and exits of the expressway. The data utilized is easy to collect, which can not only accurately estimate the cross-sectional traffic volume of the corresponding section, but also avoid on-site detection, greatly reducing the consumption of manpower and material resources. The prediction method is relatively simple, with clear logic and steps, and is easy to form code, which greatly reduces the difficulty of learning, is conducive to promotion and application, and facilitates the development of a module specifically for calculating cross-sectional traffic volume in the existing highway big data platform system, laying the foundation for future highway management and decision-making.
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例的描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
图1是本申请实施例的高速公路断面交通量的估计方法的流程图；FIG1 is a flow chart of a method for estimating highway section traffic volume according to an embodiment of the present application;
图2是高速公路断面的示意图。FIG. 2 is a schematic diagram of a highway section.
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是 全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获取的所有其他实施例，都属于本申请保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not the entire embodiments. All embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
本申请实施例公开了一种高速公路断面交通量的估计方法。应当理解的是，高速公路包括上行和下行两个行驶方向，因此，车流也分上下行，则本申请实施例的某断面的交通量为上下行交通量的和。本申请实施例的断面指的是待测路段的同一位置的入口和出口所在的断面。如图1所示，本申请实施例的方法包括如下的步骤：The embodiment of the present application discloses a method for estimating the traffic volume of a highway section. It should be understood that a highway includes two driving directions, namely, up and down. Therefore, the traffic flow is also divided into up and down. The traffic volume of a certain section of the embodiment of the present application is the sum of the up and down traffic volumes. The section of the embodiment of the present application refers to the section where the entrance and exit of the same position of the road section to be measured are located. As shown in Figure 1, the method of the embodiment of the present application includes the following steps:
步骤S101：获取高速公路的待测路段内的每一入口和每一出口的交通量。Step S101: Obtain the traffic volume at each entrance and each exit of the tested section of the expressway.
如图2所示，设待测路段已知有n个入口A、B、……、I、……、N，n个出口A′、B′、……、I′、……、N′，待测路段外的入口和出口分别用X和X′表示。As shown in FIG2 , it is assumed that the road section to be tested has n entrances A, B, ..., I, ..., N and n exits A′, B′, ..., I′, ..., N′. The entrances and exits outside the road section to be tested are represented by X and X′ respectively.
以z表示待测路段内的一入口的交通量，以j表示待测路段内的一断面处的入口和出口的编号(应当理解的是，同一断面处的入口和出口的编号相同)，则zj表示待测路段内的第j个入口的交通量。以z′表示待测路段内的一出口的交通量，则z′j表示待测路段内的第j个出口的交通量。其中，j＝1，2，3，……，i，……n，i≠n。Let z represent the traffic volume of an entrance in the section to be tested, and let j represent the number of the entrance and exit at a section in the section to be tested (it should be understood that the entrance and exit at the same section have the same number), then z j represents the traffic volume of the jth entrance in the section to be tested. Let z′ represent the traffic volume of an exit in the section to be tested, then z′ j represents the traffic volume of the jth exit in the section to be tested. Wherein, j=1, 2, 3, ..., i, ...n, i≠n.
待测路段内的每一入口和每一出口的交通量一般可通过各入口和出口记录的车辆信息统计得到。The traffic volume at each entrance and each exit within the road section to be tested can generally be obtained through statistics of vehicle information recorded at each entrance and exit.
步骤S102：根据待测路段内的每一入口和每一出口的交通量，计算得到待测路段外的入口的交通量。Step S102: Calculate the traffic volume of the entrance outside the road section to be tested according to the traffic volume of each entrance and each exit in the road section to be tested.
应当理解的是，待测路段外的入口指的是待测路段外的所有入口，待测路段外的出口指的是待测路段外的所有出口。由于待测路段外的入口和出口不在本申请实施例调查的待测路段内的入口和出口的范围内，因此，从待测路段外的入口驶入高速公路的车辆是未知来向的车辆，从待测路段外的出口 驶出高速公路的车辆是未知去向的车辆，则待测路段外的入口的交通量是未知的，需要通过已知的待测路段内的每一入口和每一出口的交通量计算得到。具体的，该步骤包括如下的过程：It should be understood that the entrance outside the section to be tested refers to all entrances outside the section to be tested, and the exit outside the section to be tested refers to all exits outside the section to be tested. Since the entrances and exits outside the section to be tested are not within the scope of the entrances and exits within the section to be tested investigated in the embodiment of the present application, vehicles entering the highway from the entrance outside the section to be tested are vehicles of unknown direction, and vehicles entering the highway from the exit outside the section to be tested are vehicles of unknown direction. The vehicles leaving the highway are vehicles with unknown destinations, so the traffic volume at the entrance outside the section to be tested is unknown and needs to be calculated based on the known traffic volume at each entrance and exit within the section to be tested. Specifically, this step includes the following process:
1、根据待测路段内的每一入口和每一出口的交通量，计算得到基于待测路段内的每一出口的待测路段外的入口的交通量。1. According to the traffic volume of each entrance and each exit in the road section to be tested, the traffic volume of the entrance outside the road section to be tested based on each exit in the road section to be tested is calculated.
从待测路段内的一入口驶入高速公路的车辆不能从与该入口位于同一断面的出口驶出高速公路。以图2为例，从入口A进入的车辆不能从入口A′出去，其可以驶出高速公路的行驶方向只有B′、C′、…、I′、…、N′和X′，总共n个方向，同样的，从入口B进入的车辆不能从入口B′出去，其可以驶出高速公路的行驶方向只有A′、C′、…、I′、…、N′和X′，总共n个方向，其它入口同理。这样，一车辆由入口A行驶至出口I′的概率为则从出口I′驶出高速公路的车流量为同理，车辆由其它入口行驶至出口I′驶出高速公路的车流量分别为从待测路段外的入口X驶入高速公路的车流量为x，可以从待测路段内的任意出口驶出高速公路或者直接通过待测路段从待测路段外的出口X′驶出高速公路，共有n+1个方向，则其从出口I′驶出高速公路的概率为进入出口I′驶出高速公路的车流量为基于上述的分析，建立待测路段内的每一出口的交通量与每一入口的交通量的等式关系，具体如下：
Vehicles that enter the highway from an entrance within the tested section cannot exit the highway from the exit located in the same section as the entrance. Taking Figure 2 as an example, a vehicle that enters from entrance A cannot exit from entrance A'. The directions in which it can exit the highway are only B', C', ..., I', ..., N' and X', a total of n directions. Similarly, a vehicle that enters from entrance B cannot exit from entrance B'. The directions in which it can exit the highway are only A', C', ..., I', ..., N' and X', a total of n directions. The same is true for other entrances. In this way, the probability of a vehicle traveling from entrance A to exit I' is Then the traffic flow from the highway exit I′ is Similarly, the traffic volume of vehicles driving from other entrances to exit I′ is The traffic volume entering the highway from entrance X outside the tested section is x, and the traffic can exit the highway from any exit within the tested section or directly pass through the tested section and exit the highway from exit X′ outside the tested section. There are n+1 directions in total, so the probability of exiting the highway from exit I′ is The traffic volume entering exit I' and leaving the highway is Based on the above analysis, an equation relationship between the traffic volume at each exit and the traffic volume at each entrance in the road section to be tested is established, as follows:
则可总结通式为：其中，xj表示基于待测路段内的第j个出口的待测路段外的入口的交通量，m表示待测路段内的一断面处的入口和出口的编号，则m＝1，2，3，……，i，……n，i≠n。The general formula can be summarized as: Wherein, xj represents the traffic volume of the entrance outside the tested section based on the jth exit in the tested section, and m represents the number of the entrance and exit at a section in the tested section, then m=1, 2, 3, ..., i, ...n, i≠n.
对上述通式进行变换，得到基于待测路段内的每一出口的待测路段外的入口的交通量的计算式如下：
By transforming the above general formula, the calculation formula for the traffic volume of the entrance outside the tested section based on each exit in the tested section is as follows:
2、计算基于待测路段内的每一出口的待测路段外的入口的交通量的均值，得到待测路段外的入口的交通量。2. Calculate the average of the traffic volume of the entrance outside the road section to be tested based on each exit in the road section to be tested, and obtain the traffic volume of the entrance outside the road section to be tested.
具体的，待测路段外的入口的交通量的计算式如下：
Specifically, the calculation formula for the traffic volume at the entrance outside the road section to be tested is as follows:
其中，表示待测路段外的入口的交通量。in, Indicates the traffic volume at the entrance outside the road section to be tested.
这样，通过该步骤可得到待测路段外的入口的交通量。In this way, the traffic volume at the entrance outside the road section to be tested can be obtained through this step.
步骤S103：根据待测路段内的每一入口和每一出口的交通量，以及，待测路段外的入口的交通量，计算待测路段的每一断面的交通量。Step S103: Calculate the traffic volume of each section of the road section to be tested according to the traffic volume of each entrance and each exit in the road section to be tested and the traffic volume of the entrance outside the road section to be tested.
具体的，该步骤包括如下的过程：Specifically, this step includes the following process:
1、根据待测路段内的每一入口和每一出口的交通量，以及，待测路段外的入口的交通量，计算得到从待测路段内的一选定入口之前的入口驶入高速公路的车辆经过该选定入口所在断面的第一交通量总数，从待测路段外的 入口驶入高速公路的车辆经过该选定入口所在断面的第二交通量总数，从待测路段内的一选定入口驶入高速公路的车辆经过该选定入口所在断面的第三交通量总数，以及，从待测路段内的一选定入口之后的入口驶入高速公路的车辆经过该选定入口所在断面的第四交通量总数。1. According to the traffic volume of each entrance and each exit in the section to be tested, and the traffic volume of the entrance outside the section to be tested, calculate the total number of vehicles entering the expressway from the entrance before a selected entrance in the section to be tested and passing through the section where the selected entrance is located, and calculate the total number of vehicles entering the expressway from the entrance before a selected entrance in the section to be tested and passing through the section where the selected entrance is located. The second total traffic volume of vehicles entering the highway from the entrance passes through the section where the selected entrance is located, the third total traffic volume of vehicles entering the highway from a selected entrance within the section to be tested passes through the section where the selected entrance is located, and the fourth total traffic volume of vehicles entering the highway from an entrance after a selected entrance within the section to be tested passes through the section where the selected entrance is located.
以选定入口I和出口I′所在断面I-I′为例，进行说明，其中，选定入口I即为待测路段内的第i个入口。具体如下：Take the section I-I' where the entrance I and exit I' are selected as an example for explanation, where the selected entrance I is the i-th entrance in the section to be tested. The details are as follows:
(1)从待测路段内的选定入口I之前的入口驶入高速公路的车辆(1) Vehicles entering the highway from the entrance before the selected entrance I in the section to be tested
从入口A驶入高速公路的车辆经过断面I-I′，其驶出高速公路的出口必是待测路段内的出口I′到出口N′之间的任一出口或待测路段外的出口X′，则从入口A驶入高速公路的车辆经过断面I-I′的车流量为 Vehicles entering the expressway from entrance A pass through section II'. Their exit from the expressway must be any exit between exit I' and exit N' in the section to be tested or exit X' outside the section to be tested. Then the traffic volume of vehicles entering the expressway from entrance A passing through section II' is
从入口B驶入高速公路的车辆经过断面I-I′，其驶出高速公路的出口必是待测路段内的出口I′到出口N′之间的任一出口或待测路段外的出口X′，则从入口B驶入高速公路的车辆经过断面I-I′的车流量为 Vehicles entering the expressway from entrance B pass through section II'. Their exit from the expressway must be any exit between exit I' and exit N' in the section to be tested or exit X' outside the section to be tested. Then the traffic volume of vehicles entering the expressway from entrance B passing through section II' is
同理，可得从入口I之前其它入口驶入高速公路的车辆经过断面I-I′的车流量，这样，从待测路段内的选定入口I之前的入口驶入高速公路的车辆经过断面I-I′的第一交通量总数Z1的计算式如下：
Similarly, the traffic volume of vehicles entering the expressway from other entrances before entrance I passing through section II' can be obtained. Thus, the calculation formula for the first traffic volume Z1 of vehicles entering the expressway from the entrance before the selected entrance I in the section to be tested passing through section II' is as follows:
(2)从待测路段外的入口X驶入高速公路的车辆(2) Vehicles entering the highway from entrance X outside the road section to be tested
从待测路段外的入口X驶入高速公路的车辆经过断面I-I′后驶出高速公路的出口必是待测路段的出口I′到出口N′之间的任一出口或待测路段外的出口X′，则从待测路段外的入口驶入高速公路的车辆经过断面I-I′的第二交通
量总数Z2的计算式如下：
The vehicle entering the expressway from the entrance X outside the section to be tested must exit the expressway from the exit I' to the exit N' of the section to be tested or the exit X' outside the section to be tested. Then the vehicle entering the expressway from the entrance outside the section to be tested passes through the second traffic section II'. The total quantity Z2 is calculated as follows:
(3)从待测路段内的选定入口I驶入高速公路的车辆(3) Vehicles entering the highway from the selected entrance I within the section to be tested
从待测路段内的入口I驶入高速公路的车辆，无论从哪个出口驶出高速公路，必然经过断面I-I′，故从待测路段内的选定入口I驶入高速公路的车辆经过断面I-I′的第三交通量总数Z3为选定入口I的交通量，即Z3＝zi。Vehicles entering the expressway from entrance I in the tested section must pass through section II′ no matter which exit they exit from. Therefore, the third total traffic volume Z 3 of vehicles entering the expressway from the selected entrance I in the tested section passing through section II′ is the traffic volume of the selected entrance I, that is, Z 3 = zi .
(4)从待测路段内的选定入口I之后的入口驶入高速公路的车辆(4) Vehicles entering the highway from the entrance after the selected entrance I in the section to be tested
从待测路段内的选定入口I之后的入口驶入高速公路的车辆经过断面I-I′后驶出高速公路的出口必是待测路段内的出口A′到出口I′之间的任一出口。The exit of a vehicle entering the expressway after the selected entrance I in the section to be tested and then exiting the expressway after passing through section I-I' must be any exit between exit A' and exit I' in the section to be tested.
例如，从待测路段内的入口I+1驶入高速公路的车辆经过断面I-I′的车流量为 For example, the traffic volume of vehicles entering the highway from entrance I+1 in the tested section passing through section II′ is
例如，从待测路段内的入口I+2驶入高速公路的车辆经过断面I-I′的车流量为 For example, the traffic volume of vehicles entering the highway from entrance I+2 in the tested section passing through section II′ is
以此类推，这样，从待测路段内的选定入口I之后的入口驶入高速公路的车辆经过断面I-I′的第四交通量总数Z4的计算式如下：
By analogy, the fourth total traffic volume Z4 of vehicles entering the expressway from the entrance after the selected entrance I in the section to be tested passing through section II′ is calculated as follows:
2、计算第一交通量总数、第二交通量总数、第三交通量总数和第四交通量总数的和，得到该选定入口所在断面的交通量。2. Calculate the sum of the first traffic volume, the second traffic volume, the third traffic volume and the fourth traffic volume to obtain the traffic volume of the section where the selected entrance is located.
待测路段的断面I-I′的交通量为上述四种交通量总数的和，则待测路段 的断面I-I′的交通量的计算式如下：The traffic volume of section II' of the road section to be tested is the sum of the total of the above four traffic volumes. The calculation formula for the traffic volume of section II' is as follows:
ZI-I′＝Z1+Z2+Z3+Z4。Z II′ =Z 1 +Z 2 +Z 3 +Z 4 .
此外，本申请实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序指令；计算机程序指令被处理器执行时实现如上述实施例的高速公路断面交通量的估计方法。In addition, an embodiment of the present application also provides a computer-readable storage medium, on which computer program instructions are stored; when the computer program instructions are executed by a processor, a method for estimating highway section traffic volume as in the above embodiment is implemented.
此外，本申请实施例还提供一种高速公路断面交通量的估计系统，包括：如上述实施例的计算机可读存储介质。In addition, an embodiment of the present application also provides a highway section traffic volume estimation system, including: a computer-readable storage medium as in the above embodiment.
综上，本申请实施例，合理利用了高速公路出入口的数据，所利用的数据易于收集，不仅可以精确地估算相应路段的断面交通量，而且避免了现场探测，大大减少了人力物力消耗，该预测方法较为简单，逻辑明确、步骤清晰，易于形成代码，大大降低了学习难度，有利于推广应用，方便在现有的公路大数据平台系统中开发专门计算断面交通量的模块，为今后公路管理与决策打下基础。In summary, the embodiments of the present application make rational use of the data of the entrances and exits of the expressway. The data used are easy to collect, which can not only accurately estimate the cross-sectional traffic volume of the corresponding road section, but also avoid on-site detection, greatly reducing the consumption of manpower and material resources. The prediction method is relatively simple, with clear logic and steps, and is easy to form code, which greatly reduces the difficulty of learning, is conducive to promotion and application, and facilitates the development of a module specifically for calculating cross-sectional traffic volume in the existing highway big data platform system, laying the foundation for future highway management and decision-making.
以上，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。 The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.
Claims (10)
The method for estimating the traffic volume of a highway section according to claim 2 is characterized in that the calculation formula for the traffic volume of the entrance outside the section to be tested based on each exit in the section to be tested includes:
The method for estimating the traffic volume of a highway section according to claim 4 is characterized in that the calculation formula for the total first traffic volume Z1 of vehicles entering the highway from the entrance before the selected entrance I in the section to be measured passing through the section II′ includes:
The method for estimating the traffic volume of a highway section according to claim 4 is characterized in that the calculation formula for the second total traffic volume Z2 of vehicles entering the highway from the entrance outside the section to be measured passing through the section II′ includes:
The method for estimating the traffic volume of a highway section according to claim 4 is characterized in that the calculation formula for the fourth total traffic volume Z4 of vehicles entering the highway from the entrance after the selected entrance I in the section to be measured passing through the section II′ includes:
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