Urban area traffic management method and system

Abstract

This invention provides a method and system for urban area traffic management, comprising: selecting corresponding checkpoint devices at the entrance and exit sections of the boundary roads of a preset area; obtaining a first accumulation volume of inbound and outbound vehicle flow within a preset time period through the checkpoint devices; obtaining a second accumulation volume of vehicles in parking lots within the preset area within the preset time period; obtaining the accumulation volume saturation level within the current time period based on the first accumulation volume; obtaining the total vehicle saturation level based on the first and second accumulation volumes; and performing traffic management in the preset area based on the accumulation volume saturation level and the total vehicle saturation level. Compared with the prior art, this invention achieves accurate traffic flow statistics by using ground checkpoint devices; improves data accuracy by incorporating data from ground parking lots; and avoids the impact of some vehicles on data accuracy by extending the time period of a single statistical cycle.

Description

Technical Field

[0001] This invention relates to the field of transportation technology, and more specifically, to a method and system for urban area traffic management. Background Technology

[0002] Traffic saturation and congestion levels reflect the volume of traffic and the management pressure within a city area. Scientific calculations can determine whether the traffic volume in a given area has reached the road's carrying capacity. If saturation is too high, administrators need to implement proactive traffic control measures to prevent congestion. Furthermore, congestion levels can predict whether more police resources will be needed to focus on the area in the future. Current saturation calculation methods are mostly based on maps and road conditions, but these methods cover too broad a scope and cannot accurately measure specific key areas, such as core urban management areas. In such cases, it's sufficient to focus on the traffic volume within that area, without considering other areas.

[0003] Currently, many methods for counting traffic flow rely on devices such as video, coils, and geomagnetic sensors. However, due to the large number of devices used, some devices inevitably malfunction or become outdated and require maintenance. This can lead to issues with the accuracy and stability of some data. Furthermore, the large number of devices also increases costs in various aspects and makes long-term maintenance difficult.

[0004] Patent document CN113643539A discloses a smart traffic management system based on big data, relating to the field of traffic management technology. This invention includes a device access module, a traffic information resource center module, and a management platform; the management platform includes an application display module and a business application module; the business application module includes a traffic condition monitoring unit for real-time monitoring of urban traffic operation status; the traffic condition monitoring unit includes a road traffic status monitoring unit for analyzing the average traffic flow, average speed, and saturation of each road in the main road network, and analyzing the road traffic situation to display the overall traffic conditions within the area. However, this method does not effectively solve the problem of its overly broad coverage and inability to accurately perform detailed statistics on a specific key area. Summary of the Invention

[0005] In view of the deficiencies in the existing technology, the purpose of this invention is to provide a method and system for urban area traffic management.

[0006] A method for urban area traffic management according to the present invention includes:

[0007] Step 1: Select the corresponding checkpoint equipment at the entrance and exit sections of the boundary roads of the preset area;

[0008] Step 2: Obtain the first sedimentation volume of inbound and outbound vehicle flow within a preset time period through the checkpoint equipment;

[0009] Step 3: Obtain the second accumulation amount of vehicles in the parking lot within the preset area within a preset time period;

[0010] Step 4: Based on the first sedimentation amount, obtain the sedimentation saturation level for the current time period;

[0011] Step 5: Based on the first and second sedimentation amounts, obtain the total vehicle saturation level;

[0012] Step 6: Implement traffic management in the preset area based on the sedimentation saturation and the total number of vehicles saturation.

[0013] Preferably, step 5 includes:

[0014] Step 501: Obtain the compensation coefficient;

[0015] Step 502: Based on the compensation coefficient, the first sedimentation amount, and the second sedimentation amount, obtain the total number of vehicles in the preset area on that day and the average total number of vehicles within the preset time period;

[0016] Step 503: Calculate the total vehicle saturation based on the total number of vehicles and the average total number of vehicles for the day.

[0017] Preferably, step 4 includes:

[0018] Step 401: Obtain the third sedimentation amount within the current time period;

[0019] Step 402: Based on the first precipitate amount, obtain the average precipitate amount;

[0020] Step 403: Obtain the saturation of precipitation based on the third precipitate amount and the average precipitate amount.

[0021] Preferably, step 2 includes:

[0022] Step 201: Obtain the inbound and outbound vehicle flow within a preset area and within a preset time using the checkpoint equipment;

[0023] Step 202: Based on the inbound and outbound traffic flow, obtain the first sedimentation amount within a preset time.

[0024] Preferably, step 3 includes:

[0025] Step 301: Obtain the total number of parking spaces and the number of available parking spaces in the parking lot within the preset area within the preset time period;

[0026] Step 302: Based on the total number of parking spaces and the number of available parking spaces, obtain the second sedimentation amount of vehicles in the parking lot.

[0027] According to the present invention, an urban area traffic management system is provided, the system comprising:

[0028] Module M1: Used to select the corresponding checkpoint device at the entrance and exit sections of the boundary road in the preset area;

[0029] Module M2: Used to obtain the first accumulated amount of inbound and outbound vehicle flow within a preset time through the checkpoint equipment;

[0030] Module M3: Used to obtain the second accumulation amount of vehicles in the parking lot within a preset area within a preset time.

[0031] Module M4: Used to obtain the saturation of sedimentation within the current time period based on the first sedimentation amount;

[0032] Module M5: Used to obtain the total vehicle saturation based on the first sedimentation amount and the second sedimentation amount;

[0033] Module M6: Used for traffic management in a preset area based on sediment saturation and total vehicle saturation.

[0034] Preferably, module M5 includes:

[0035] Submodule M501: Used to obtain compensation coefficients;

[0036] Submodule M502: Used to obtain the total number of vehicles in the preset area on the same day and the average total number of vehicles within the preset time period based on the compensation coefficient, the first sedimentation amount and the second sedimentation amount;

[0037] Submodule M503: Used to obtain the total vehicle saturation based on the total number of vehicles and the average total number of vehicles on the day.

[0038] Preferably, module M4 includes:

[0039] Submodule M401: Used to obtain the third sedimentation amount within the current time period;

[0040] Submodule M402: Used to obtain the average amount of sediment based on the first amount of sediment;

[0041] Submodule M403: Used to obtain the precipitation saturation based on the third precipitation amount and the average precipitation amount.

[0042] Preferably, module M2 includes:

[0043] Submodule M201: Used to obtain the inbound and outbound vehicle flow within a preset area and within a preset time through the checkpoint device;

[0044] Submodule M202: Used to obtain the first sedimentation amount within a preset time based on the inbound and outbound traffic flow.

[0045] Preferably, module M3 includes:

[0046] Submodule M301: Used to obtain the total number of parking spaces and the number of available parking spaces in the parking lot within the preset area within a preset time period;

[0047] Submodule M302: Used to obtain the second accumulation amount of vehicles in the parking lot based on the total number of parking spaces and the number of available parking spaces.

[0048] Compared with the prior art, the present invention has the following beneficial effects:

[0049] 1. This invention achieves accurate statistics on traffic flow by using ground checkpoint equipment.

[0050] 2. This invention improves the accuracy of data by incorporating data from ground parking lots.

[0051] 3. This invention avoids the impact of some vehicles on data accuracy by extending the time of a single statistical period. Attached Figure Description

[0052] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0053] Figure 1 This is a schematic diagram of the process of the present invention;

[0054] Figure 2 This is a schematic diagram illustrating the region selection in this invention;

[0055] Figure 3 This is a schematic diagram showing the selection of the checkpoint device according to the present invention. Detailed Implementation

[0056] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the scope of protection of the present invention.

[0057] Figure 1 This is a schematic diagram of the process of the present invention, such as Figure 1 As shown, the present invention provides a method for urban area traffic management, comprising the following steps:

[0058] Step 1: Select the corresponding checkpoint equipment at the entrance and exit sections of the boundary road of the preset area.

[0059] In this invention, the selection of the preset area is not limited and can be made according to the actual situation. For example, the preset area can be a specific management area, with the boundary separated by roads as much as possible, and corresponding checkpoint devices selected at the entrance and exit sections of the boundary roads.

[0060] Specifically, first, identify the areas that need to be focused on, such as areas with high traffic volume or that are usually busy and important. Circle these areas on the map as preset areas. The boundaries of the areas should be defined by roads, preferably primary roads, and the areas should be closed as much as possible.

[0061] Figure 2 This is a schematic diagram illustrating the region selection method of the present invention. Figure 3 A schematic diagram of the selected bayonet device of the present invention, as shown below. Figure 2 and Figure 3 As shown, select the area of ​​focus as the preset area, i.e. Figure 2 The area enclosed by the solid black line, then, as... Figure 3 As shown, at the entrance and exit locations of the boundary roads of the preset area, select the corresponding checkpoint equipment. If there is no checkpoint equipment to choose from, you can use a checkpoint-like equipment or electronic police equipment at the corresponding location as a substitute for the checkpoint equipment. If there is no substitute equipment available, you can fine-tune the boundary of the preset area. The purpose is to enable the checkpoint equipment on the boundary roads to monitor all vehicles entering and exiting the preset area, so that the traffic flow statistics are more accurate.

[0062] Step 2: Obtain the first sedimentation volume of inbound and outbound vehicle flow within a preset time period through the checkpoint equipment.

[0063] Preferably, step 2 includes: step 201: obtaining the inbound and outbound vehicle flow within a preset area within a preset time using a checkpoint device; step 202: obtaining the first sedimentation amount within a preset time based on the inbound and outbound vehicle flow.

[0064] In this invention, the preset time is not limited and can be set according to specific circumstances. For example, the preset time can be set to one hour, that is, to count the first accumulation of inbound and outbound traffic flow within one hour, denoted as Δt. h First, we need to count the number of individual checkpoint devices, k. i In Δt h The inbound and outbound traffic flow within a given time period, with the inbound traffic flow recorded as follows: Outbound traffic volume is recorded as Then, the sedimentation amount xk of the checkpoint device is calculated. i : Finally, the Δt of all checkpoint devices (xk1, xk2, xk3, xk4, xk5…) is calculated.h The amounts of sediment accumulated over time are added together to obtain Δt. h The total sedimentation amount at the gate within a given time period can be calculated using formula (1):

[0065]

[0066] Where n represents the number of checkpoint devices; Δt h Total sedimentation amount at the checkpoint within a time period (x) k (Δt h )) is abbreviated as xkh.

[0067] Furthermore, Δt h Extending the time to one day, denoted as Δt d , Δt d The total sediment volume over 24 hours in a day is the total sediment volume at the checkpoint for that day, which can be calculated using formula (2):

[0068]

[0069] Where n is 24, representing 24 hours in a day; the total sedimentation volume at the checkpoint in a day (x k (Δt d )) is abbreviated as xkd.

[0070] It is known that because some vehicles may enter on the same day but leave the next day, or only leave without entering during the statistical period, a short period will have a significant impact, leading to inaccurate statistical data. Therefore, it is necessary to extend the statistical period by taking a longer preset time. For example, a preset time of one week is denoted as Δt. w , Δt d The total sedimentation amount at the checkpoints within the specified time period is Δt. w The total amount of sediment over a time period can be calculated using formula (3):

[0071]

[0072] Where n represents the period length, which is one week in this case, so n = 7; the total sedimentation amount at the checkpoint in one week (x k (Δt w )) is abbreviated as xkw.

[0073] The first precipitation amount includes: Δt h The total sedimentation amount at the checkpoint within a given time period (xkh), the total sedimentation amount at the checkpoint in one day (xkd), and the total sedimentation amount at the checkpoint in one week (xkw).

[0074] Step 3: Obtain the second accumulation of vehicles in the parking lot within the preset area within the preset time.

[0075] Preferably, step 3 includes: step 301: obtaining the total number of parking spaces and the number of available parking spaces in the parking lot within the preset area within a preset time; step 302: obtaining the second accumulation amount of vehicles in the parking lot based on the total number of parking spaces and the number of available parking spaces.

[0076] Specifically, first, identify all parking lots within the preset area, and then, as in step 2, take one hour (Δt). h A single parking lot within ) i Total number of parking spaces and available parking spaces Calculate the Δt of the parking lot h Precipitation amount over time (xp) i ): The Δt is calculated for all parking lots (xp1, xp2, xp3, xp4, xp5…). h The total amount of precipitate is obtained by adding the amounts of precipitate within a certain time period, and is calculated using formula (4):

[0077]

[0078] Where n represents the number of parking lots; Δt h Total amount of sediment over time (x) p (Δt h )) is abbreviated as xph.

[0079] Then, according to Δt h The total sedimentation amount over a period of time is summarized to obtain the amount of sedimentation per day (Δt). d The total amount of sediment in the parking lot within a given time period is calculated using formula (5):

[0080]

[0081] Where n represents 24 hours in a day, so n = 24; the total amount of sediment (x) within a day. p (Δt d ()) is abbreviated as xpd.

[0082] Furthermore, since there are overnight cars or cars that have not moved for a period of time in the parking lot, the statistical period is extended in step 2, and a longer preset time is taken. For example, the preset time is set to one week and denoted as Δt. w , Δt d The total amount of sediment in the parking lot within a given time period is Δt. w The total amount of sediment over the time period is calculated using formula (6):

[0083]

[0084] Where n represents the period length, which is one cycle here, so n = 7; Δt wThe total amount of sediment within a time period is abbreviated as xpw.

[0085] The second precipitation amount includes: the total precipitation amount within one hour (xph), the total precipitation amount within one day (xpd), ​​and the total precipitation amount within one week (xpw).

[0086] Step 4: Based on the first sedimentation amount, obtain the sedimentation saturation level for the current time period.

[0087] Preferably, step 4 includes: step 401: obtaining the third sedimentation amount within the current time period; step 402: obtaining the average sedimentation amount based on the first sedimentation amount; step 403: obtaining the sedimentation saturation based on the third sedimentation amount and the average sedimentation amount.

[0088] Specifically, first, take the current hour as the time period t. c (For example, if the current time is 09:36, the value is 09:00-09:59). From the daily data recorded in step 2, take the previous week's data (Δt). w ) every day within t c Data on sedimentation at checkpoints over a specific time period Therefore, the first Δt is calculated. w Every day within a time period t c The average sedimentation amount at the checkpoint over the time period is calculated using formula (7):

[0089]

[0090] Where m represents Δt w The number of days within a given time period.

[0091] In this invention, for time period t c The selection of t is not restricted. For example, if the current time is 09:36, then t c It can be set to 09:00-09:59.

[0092] Furthermore, currently t c The saturation of sedimentation over a given time period can be expressed by formula (8):

[0093]

[0094] Step 5: Based on the first and second sedimentation amounts, obtain the total vehicle saturation.

[0095] Preferably, step 5 includes: step 501: obtaining the compensation coefficient; step 502: obtaining the total number of vehicles in the preset area on the same day and the average total number of vehicles in the preset time period based on the compensation coefficient, the first sedimentation amount and the second sedimentation amount; step 503: obtaining the total vehicle saturation based on the total number of vehicles on the same day and the average total number of vehicles.

[0096] Specifically, by extending the time of a single cycle, the data deviation caused by some vehicles not being captured in time is eliminated. However, there are still some vehicles that are not counted. In the end, the number of vehicles in the area is greater than the counted result. Based on the observation of data from multiple cycles, the corresponding compensation coefficient α is obtained. At the same time, due to the different situations of weekdays, weekends and holidays, different compensation coefficients α will be obtained.

[0097] Furthermore, let the time of the day be t. d The previous day's time was t d-1 With the total sediment volume xkd captured daily by the checkpoint equipment entering the preset area and the total sediment volume xpd of the parking lot counted daily, since some idle vehicles cannot be counted, they are compensated by the compensation coefficient α. Then, the t in the area can be calculated by formula (9). d-1 Total number of vehicles within a given time period.

[0098]

[0099] It can be obtained that day t d The total number of vehicles in the preset area can be obtained using formula (10):

[0100]

[0101] Since step 2 records the first sedimentation amount data for each day, the previous week's (Δt) data is used. w The total number of vehicles Xd(i) within the preset area for each day is calculated using formula (11). w The average total number of vehicles in the region for each day within a given time period.

[0102]

[0103] Where m represents Δt w The number of days within a given time period.

[0104] Furthermore, the saturation level of the total number of vehicles on that day can be obtained using formula (12):

[0105]

[0106] Step 6: Implement traffic management in the preset area based on the sedimentation saturation and the total number of vehicles saturation.

[0107] Specifically, during a specific time period each day When both are very large, it indicates that a large number of vehicles will enter during that time period, requiring traffic management measures to be prepared in advance for that specific time. If the number of vehicles in the current area is too large, then a warning should be issued and traffic control measures should be taken to restrict the number of vehicles entering the area.

[0108] Here, sedimentation is a specific number representing the total number of vehicles in a defined area, while saturation is a ratio reflecting the ratio of the current number of vehicles in the area to its historical average. A higher sedimentation level indicates a larger number of vehicles in the area, while a higher saturation level indicates that the area's traffic capacity is approaching or exceeding its limit.

[0109] Specifically, the standard setting for whether regional traffic is saturated is 1 or 100%. Traffic management departments will also make appropriate adjustments based on specific circumstances (such as meeting support or holiday support). There is no specific standard for exceeding the limit or exceeding the limit for the amount of traffic congestion. It is set according to different regional ranges. Generally speaking, the larger the range and the more prosperous the business district, the higher the warning value for the amount of traffic congestion.

[0110] For example, taking Lujiazui in Shanghai as an example, within the designated area, there are only 5 entrances and exits for vehicles to pass through. Vehicles are counted at these entrances and exits using checkpoint equipment. The number of vehicles entering minus the number exiting gives the sedimentation level. During weekday working hours, the sedimentation level is generally between 8,000 and 15,000. Several warning levels are set: 12,000 is a Level 2 warning, and over 15,000 is a Level 1 warning. Saturation is the ratio of the current sedimentation level to the historical average; 80%-120% is considered normal, 120%-150% is a Level 2 warning, and over 150% is a Level 1 warning. It is worth noting that these standards are set by traffic police based on their own manpower; currently, there is no relevant national or ministerial standard data.

[0111] Specifically, by calculating the historical proportion of traffic flow and traffic accumulation in the preset area, we can determine whether the traffic flow saturation in the preset area is too high and issue timely warnings. If it is too high, we need to notify traffic managers to pay attention in advance and take measures to alleviate traffic congestion. If the traffic accumulation is too high, the parking pressure in the area is too great and continues for a long time, so we need to take measures such as adding parking lots or traffic control.

[0112] The present invention also provides an urban area traffic management system, comprising the following modules:

[0113] Module M1: Used to select the corresponding checkpoint device at the entrance and exit sections of the boundary road in the preset area.

[0114] Module M2: Used to obtain the first sedimentation amount of inbound and outbound vehicle flow within a preset time through the checkpoint equipment.

[0115] Preferably, module M2 includes: submodule M201: used to obtain the inbound and outbound traffic flow within a preset area within a preset time through the checkpoint device; submodule M202: used to obtain the first sedimentation amount within a preset time based on the inbound and outbound traffic flow.

[0116] Module M3: Used to obtain the second accumulation amount of vehicles in the parking lot within a preset area within a preset time.

[0117] Preferably, module M3 includes:

[0118] Submodule M301: Used to obtain the total number of parking spaces and the number of available parking spaces in the parking lot within the preset area within a preset time period;

[0119] Submodule M302: Used to obtain the second accumulation amount of vehicles in the parking lot based on the total number of parking spaces and the number of available parking spaces.

[0120] Module M4: Used to obtain the saturation of sedimentation within the current time period based on the first sedimentation amount.

[0121] Preferably, module M4 includes: submodule M401: used to obtain the third sedimentation amount within the current time period;

[0122] Submodule M402: used to obtain the average amount of sediment based on the first amount of sediment; Submodule M403: used to obtain the sediment saturation based on the third amount of sediment and the average amount of sediment.

[0123] Module M5: Used to obtain the total vehicle saturation based on the first sedimentation amount and the second sedimentation amount.

[0124] Preferably, module M5 includes: submodule M501 for obtaining compensation coefficient; submodule M502 for obtaining the total number of vehicles in the preset area on the same day and the average total number of vehicles in the preset time period based on the compensation coefficient, the first sedimentation amount and the second sedimentation amount; and submodule M503 for obtaining the total vehicle saturation based on the total number of vehicles on the same day and the average total number of vehicles.

[0125] Module M6: Used for traffic management in a preset area based on sediment saturation and total vehicle saturation.

[0126] The technical principle of this invention is:

[0127] Traffic saturation and accumulation are indicators of traffic volume and management pressure in a city area. Scientific calculations can determine whether the traffic volume in the area has reached the road's carrying capacity. If the saturation is too high, managers need to control vehicles in the area in advance to prevent congestion. Moreover, accumulation can predict whether more police force will be needed to focus on the area in the future.

[0128] The main technical problem solved by this invention is:

[0129] Currently, many methods for counting traffic flow rely on devices such as video, coils, and geomagnetic sensors. However, due to the large number of devices used, some devices inevitably malfunction or become outdated and require maintenance. This can lead to issues with the accuracy and stability of some data. Furthermore, the large number of devices also increases costs in various aspects and makes long-term maintenance difficult.

[0130] Compared with the prior art, the present invention has the following beneficial effects:

[0131] 1. This invention achieves accurate statistics on traffic flow by using ground checkpoint equipment.

[0132] 2. This invention improves the accuracy of data by incorporating data from ground parking lots.

[0133] 3. This invention avoids the impact of some vehicles on data accuracy by extending the time of a single statistical period.

[0134] Those skilled in the art will understand that, in addition to implementing the system, apparatus, and their modules provided by this invention in purely computer-readable program code, the same program can be implemented in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers by logically programming the method steps. Therefore, the system, apparatus, and their modules provided by this invention can be considered a hardware component, and the modules included therein for implementing various programs can also be considered structures within the hardware component; alternatively, modules for implementing various functions can be considered both software programs implementing the method and structures within the hardware component.

[0135] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A method for urban area traffic management, characterized in that, The method includes: Step 1: Select the corresponding checkpoint equipment at the entrance and exit sections of the boundary roads of the preset area; Step 2: Obtain the first sedimentation amount of inbound and outbound vehicle flow within a preset time using the checkpoint device; Step 3: Obtain the second accumulation amount of vehicles in the parking lot within the preset area within the preset time period; Step 4: Based on the first amount of sediment, obtain the sediment saturation level for the current time period; Step 5: Based on the first sedimentation amount and the second sedimentation amount, obtain the total vehicle saturation level; Step 6: Based on the sedimentation saturation and the total number of vehicles saturation, conduct traffic management in the preset area; The amount of sediment indicates the total number of vehicles in the designated area; Saturation represents the ratio of the current number of vehicles in a defined area to the historical average number of vehicles. Step 5 includes: Step 501: Obtain the compensation coefficient; Step 502: Based on the compensation coefficient, the first sedimentation amount, and the second sedimentation amount, obtain the total number of vehicles in the preset area on that day and the average total number of vehicles within the preset time period; Step 503: Based on the total number of vehicles and the average total number of vehicles for the day, obtain the total vehicle saturation. Step 4 includes: Step 401: Obtain the third precipitate amount within the current time period; Step 402: Based on the first amount of precipitate, obtain the average amount of precipitate; Step 403: Obtain the precipitation saturation based on the third precipitation amount and the average precipitation amount; Take the time of the day as t d The previous day's time was t d-1 With the total daily sedimentation volume xkd captured by the checkpoint equipment entering the preset area and the total daily sedimentation volume xpd of the parking lot, and considering that some idle vehicles cannot be counted, a compensation coefficient α is used to compensate for them. The t value within the area is then calculated using the formula. d-1 Total number of vehicles within a given time period; Received, on that day t d The total number of vehicles in the preset area is obtained using the formula: Since step 2 records the first sedimentation amount data for each day, we take the Δt from the previous week. w The total number of vehicles Xd(i) within the preset area for each day is used to calculate the first Δt using a formula. w Average total number of vehicles in the area for each day within the specified time period: Where m represents Δt w The number of days within a given time period; Furthermore, the total number of vehicles saturation for the day is obtained using the following formula:

2. The urban area traffic management method according to claim 1, characterized in that, Step 2 includes: Step 201: Using the checkpoint device, obtain the inbound and outbound vehicle flow rates within the preset area and within the preset time period; Step 202: Based on the inbound traffic flow and the outbound traffic flow, obtain the first sedimentation amount within the preset time period.

3. The urban area traffic management method according to claim 1, characterized in that, Step 3 includes: Step 301: Obtain the total number of parking spaces and the number of available parking spaces in the parking lot within the preset area within the preset time period; Step 302: Based on the total number of parking spaces and the number of available parking spaces, obtain the second sedimentation amount of vehicles in the parking lot.

4. A city area traffic management system, characterized in that, The system includes: Module M1: Used to select the corresponding checkpoint device at the entrance and exit sections of the boundary road in the preset area; Module M2: Used to obtain the first sedimentation amount of inbound and outbound vehicle flow within a preset time through the checkpoint device; Module M3: Used to obtain the second accumulation amount of vehicles in the parking lot within the preset area within the preset time period; Module M4: Used to obtain the saturation of sedimentation within the current time period based on the first sedimentation amount; Module M5: Used to obtain the total vehicle saturation based on the first sedimentation amount and the second sedimentation amount; Module M6: Used to perform traffic management in the preset area based on the sedimentation saturation and the total number of vehicles saturation; The amount of sediment indicates the total number of vehicles in the designated area; Saturation represents the ratio of the current number of vehicles in a defined area to the historical average number of vehicles. The module M5 includes: Submodule M501: Used to obtain compensation coefficients; Submodule M502: used to obtain the total number of vehicles in the preset area on the same day and the average total number of vehicles within the preset time period based on the compensation coefficient, the first sedimentation amount and the second sedimentation amount; Submodule M503: Used to obtain the total vehicle saturation based on the total number of vehicles on the day and the average total number of vehicles; The module M4 includes: Submodule M401: Used to obtain the third sedimentation amount within the current time period; Submodule M402: Used to obtain the average amount of sediment based on the first amount of sediment; Submodule M403: Used to obtain the precipitation saturation based on the third precipitation amount and the average precipitation amount; Take the time of the day as t d The previous day's time was t d-1 With the total daily sedimentation volume xkd captured by the checkpoint equipment entering the preset area and the total daily sedimentation volume xpd of the parking lot, and considering that some idle vehicles cannot be counted, a compensation coefficient α is used to compensate for them. The t value within the area is then calculated using the formula. d-1 Total number of vehicles within a given time period; Received, on that day t d The total number of vehicles in the preset area is obtained using the formula: Since step 2 records the first sedimentation amount data for each day, we take the Δt from the previous week. w The total number of vehicles Xd(i) within the preset area for each day is used to calculate the first Δt using a formula. w Average total number of vehicles in the area for each day within the specified time period: Where m represents Δt w The number of days within a given time period; Furthermore, the total number of vehicles saturation for the day is obtained using the following formula:

5. The urban area traffic management system according to claim 4, characterized in that, The module M2 includes: Submodule M201: Used to obtain the inbound and outbound vehicle flow within the preset area and within the preset time through the checkpoint device; Submodule M202: Used to obtain the first sedimentation amount within the preset time period based on the inbound traffic flow and the outbound traffic flow.

6. The urban area traffic management system according to claim 4, characterized in that, The module M3 includes: Submodule M301: Used to obtain the total number of parking spaces and the number of available parking spaces in the parking lot within the preset area within the preset time period; Submodule M302: used to obtain the second sedimentation amount of vehicles in the parking lot based on the total number of parking spaces and the number of available parking spaces.

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