A temporary parking planning method and device

Abstract

This application discloses a method and apparatus for temporary parking planning. The method includes: acquiring equipment information of all monitoring devices on the road network; determining the monitoring lane bound to each monitoring device through the equipment information, and filtering road segments suitable for temporary parking space planning based on the information of the monitoring lanes; statistically analyzing the lane flow information of the filtered road segments suitable for temporary parking space planning; and determining the selectable temporary parking time period based on the lane flow information. This embodiment improves the rationality of temporary parking space planning and increases the utilization rate of temporary parking spaces.

Description

Technical Field

[0001] This article relates to traffic planning technology, and in particular to a temporary parking planning method and device. Background Technology

[0002] With urban development and the rapid increase in traffic and pedestrian flow on roads, the conflict between roadside parking and pedestrian travel is intensifying. Currently, most roadside parking spaces are either fixed parking spaces or temporary parking spaces with time restrictions (only including 8:00 PM to 7:00 AM the next day). For example, most current solutions involve installing cameras on the roadside and directly planning temporary parking spaces on the road, but these are all planned for fixed time periods, such as 8:00 PM to 7:00 AM the next day or 12:00 PM to 1:00 PM, and then configuring corresponding illegal parking functions on the cameras.

[0003] However, the current temporary parking spaces and their designated times on the roads are not reasonable and cannot meet the current demand for temporary parking spaces. Summary of the Invention

[0004] This application provides a temporary parking planning method and apparatus, which can improve the rationality of temporary parking space planning and increase the utilization rate of temporary parking spaces.

[0005] This application provides a temporary parking planning method, which may include:

[0006] Obtain device information for all monitoring devices on the road network;

[0007] The monitoring lane bound to each monitoring device is determined by the device information, and road sections that can be planned for temporary parking spaces are filtered according to the information of the monitoring lanes.

[0008] Statistical analysis of lane flow information for road sections selected for temporary parking space planning;

[0009] The available temporary parking periods are determined based on the lane flow information.

[0010] In an exemplary embodiment of this application, the step of filtering road segments suitable for temporary parking space planning based on the information of the monitored lane may include:

[0011] Based on the information of the monitored lanes, each monitoring device is merged, and the merging status of each monitoring device is determined;

[0012] Based on the merging status of each monitoring device, the road sections suitable for temporary parking space planning are selected.

[0013] In an exemplary embodiment of this application, the device information may include: its location, the associated monitoring lane, and the monitoring direction; the step of merging each monitoring device according to the monitoring lane information and determining the merging status of each monitoring device may include:

[0014] The type of the corresponding road segment is determined based on the location of the monitoring equipment on the road network; the types include: one-way one-way street, two-way one-way street, one-way multi-lane street, and two-way multi-lane street;

[0015] For the monitoring devices on the one-way multi-lane road and the two-way multi-lane road, the monitoring devices at the intersections of the road network are used as the merging points. A preset merging strategy is used to attempt to merge the monitoring devices within a preset range centered on the merging point, so as to merge them into the merging point. And based on the merging attempt results, it is determined whether the monitoring devices on the one-way multi-lane road and the two-way multi-lane road are monitoring devices that can be merged.

[0016] The monitoring devices on both the one-way and two-way one-way streets are determined to be non-mergeable monitoring devices.

[0017] In an exemplary embodiment of this application, the preset merging strategy may include:

[0018] One or more monitoring devices that are less than or equal to a preset first distance threshold from the merging point and whose monitoring direction is in the road network direction are selected as reference points; each monitoring device that is less than or equal to the preset first distance threshold from the merging point and whose monitoring direction is in the same direction as any reference point is selected as the monitoring point corresponding to that reference point.

[0019] Calculate the absolute distance between each reference point and each corresponding monitoring point, and calculate the product of the number of lanes in the monitoring direction of each monitoring point and the width of a single lane;

[0020] When the product is greater than or equal to the absolute distance, and the monitoring lane bound to the first monitoring point corresponding to the reference point is only a straight lane, then the first monitoring point is merged into the reference point.

[0021] When the product is less than the absolute distance, monitoring points that are in the same direction as the monitoring direction of the reference point are discarded.

[0022] The merged reference points and their monitoring directions are merged into the merged point.

[0023] In an exemplary embodiment of this application, the preset merging strategy may include:

[0024] One or more monitoring devices that are less than or equal to a preset first distance threshold and whose monitoring direction is in the road network direction are selected as reference points;

[0025] Calculate the product of the number of lanes in the monitoring direction of the monitoring devices that are less than or equal to a preset first distance threshold from the merging point and the width of a single lane;

[0026] When any first monitoring device is bound to a monitoring lane that includes a straight lane and a turning lane, wherein the straight lane corresponds to a first reference point and the turning lane corresponds to a second reference point, if the product of the first monitoring device is less than or equal to the absolute distance between the first monitoring device and the first reference point and the second reference point respectively, then the traffic flow ratio of the included straight lane and the turning lane on the monitoring lane is calculated respectively, and the first monitoring device is merged into the second reference point according to the direction corresponding to the turn, and the traffic flow ratio and monitoring direction of the corresponding point of the first monitoring device are marked;

[0027] When any second monitoring device is bound to a monitoring lane that only includes a turning lane, and the turning lane corresponds to a third reference point, if the product of the second monitoring device is less than or equal to the absolute distance between the first reference point and the third reference point, then according to the direction corresponding to the turning, the second monitoring device is merged into the third reference point, and the monitoring direction of the corresponding point of the second monitoring device is marked.

[0028] The merged reference points and their monitoring directions are merged into the merged point.

[0029] In an exemplary embodiment of this application, the step of filtering the road segments suitable for temporary parking space planning based on the merging status of each monitoring device may include:

[0030] The road segments in the direction of travel of the lane where the monitoring equipment that can be merged is located are divided into road segments where temporary parking spaces can be planned.

[0031] The road sections in the direction of travel of the lane where the monitoring equipment cannot be merged are designated as road sections where temporary parking spaces cannot be planned.

[0032] In an exemplary embodiment of this application, before determining the selectable temporary parking period based on the lane flow information, the method further includes: constructing an internal traffic flow system for urban roads based on the lane flow information;

[0033] The construction of an internal traffic flow system for urban roads based on the lane flow information may include:

[0034] After collecting lane flow information from each monitoring device within a set statistical time period on road sections selected for temporary parking space planning, the flow vectors corresponding to each merging point are superimposed based on the merging relationship between each monitoring device and the merging point to construct the flow vector corresponding to each merging point; the flow vector corresponding to each merging point includes at least: lane flow and lane travel direction.

[0035] Based on the different driving directions in the lanes, a scatter plot is drawn in a preset rectangular coordinate system, and each point in the rectangular coordinate system is connected by a curve; wherein, the horizontal axis of the rectangular coordinate system is the time point, and the vertical axis is the magnitude of the flow vector.

[0036] In an exemplary embodiment of this application, determining the selectable temporary parking period based on the lane flow information may include:

[0037] The maximum passability C for each lane in the driving direction corresponding to each merging point is calculated according to the preset calculation formula.

[0038] In the rectangular coordinate system and The straight line divides the curve in the scatter plot;

[0039] In the Cartesian coordinate system, greater than The time period corresponding to the curve interval is taken as the optimal travel time period. The time period corresponding to the curve interval is taken as the good passage period, and less than The time period corresponding to the curve interval is taken as the worst travel time period;

[0040] The optimal traffic time period and the good traffic time period are used as the initial selectable temporary parking time periods.

[0041] In an exemplary embodiment of this application, determining the selectable temporary parking period based on the lane flow information may further include:

[0042] In the Cartesian coordinate system, for the selected optimal travel time period, good travel time period, and worst travel time period, each is shifted downwards by a preset y-value, and the curve is then rechecked against the straight line. and The segmented curve interval;

[0043] Will still satisfy greater than The time period corresponding to the curve interval is taken as the temporary parking time period;

[0044] The original condition was greater than or , now transformed The curved section is used as the second optional temporary parking period.

[0045] In an exemplary embodiment of this application, the method may further include:

[0046] Based on the preset dwell time calculation formula, the dwell time for the selected temporary parking period and the second selected temporary parking period are calculated respectively.

[0047] The traffic flow of all lanes marked as the optimal traffic time period, the good traffic time period, and the worst traffic time period on all road segments where temporary parking spaces can be planned is statistically analyzed, and the average lane traffic flow in each lane direction during the statistical time period within the optimal traffic time period, the good traffic time period, and the worst traffic time period on each road segment where temporary parking spaces can be planned is calculated.

[0048] The time required for all the remaining parking space to flow out is calculated based on the parking volume and average lane flow on the road segment where temporary parking spaces can be planned; the selected temporary parking time period and the second selected temporary parking time period are then adjusted based on the calculated time period.

[0049] The revised optional temporary parking period is taken as the optimal temporary parking period, and the revised second optional temporary parking period is taken as the suboptimal temporary parking period.

[0050] This application also provides a temporary parking planning device, which may include a processor and a computer-readable storage medium, wherein the computer-readable storage medium stores instructions that, when executed by the processor, implement the temporary parking planning method described above.

[0051] Compared with related technologies, the embodiments of this application may include: acquiring device information of all monitoring devices on the road network; determining the monitoring lane bound to each monitoring device through the device information, and filtering road segments suitable for temporary parking space planning based on the information of the monitoring lanes; statistically analyzing the lane flow information of the filtered road segments suitable for temporary parking space planning; and determining the selectable temporary parking time period based on the lane flow information. This embodiment improves the rationality of temporary parking space planning and increases the utilization rate of temporary parking spaces.

[0052] Other features and advantages of this application will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the application. Other advantages of this application can be realized and obtained by means of the solutions described in the description and the accompanying drawings. Attached Figure Description

[0053] The accompanying drawings are used to provide an understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0054] Figure 1 This is a flowchart of a temporary parking planning method according to an embodiment of this application;

[0055] Figure 2 This is a schematic diagram of partial road network information of urban roads according to an embodiment of this application;

[0056] Figure 3 This is a schematic diagram of a one-way street and a two-way one-way road segment in the road network according to an embodiment of this application;

[0057] Figure 4 This is a schematic diagram of the first merging method according to an embodiment of this application;

[0058] Figure 5 This is a schematic diagram of the second merging method according to an embodiment of this application;

[0059] Figure 6 This is a schematic diagram of the third merging method according to an embodiment of this application;

[0060] Figure 7 This is a schematic diagram of the lane flow vector after the superposition of each merging point in an embodiment of this application.

[0061] Figure 8 This is a schematic diagram illustrating the calculation and outflow of dwell time in an embodiment of this application;

[0062] Figure 9 This is a block diagram of the temporary parking planning device according to an embodiment of this application. Detailed Implementation

[0063] This application describes several embodiments, but these descriptions are exemplary and not restrictive, and it will be apparent to those skilled in the art that many more embodiments and implementations are possible within the scope of the embodiments described herein. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with, or may replace, any feature or element of any other embodiment.

[0064] This application includes and contemplates combinations of features and elements known to those skilled in the art. The embodiments, features, and elements disclosed in this application may also be combined with any conventional features or elements to form a unique inventive scheme as defined by the claims. Any feature or element of any embodiment may also be combined with features or elements from other inventive schemes to form another unique inventive scheme as defined by the claims. Therefore, it should be understood that any feature shown and / or discussed in this application may be implemented individually or in any suitable combination. Therefore, the embodiments are not limited except by the limitations imposed by the appended claims and their equivalents. Furthermore, various modifications and changes may be made within the scope of the appended claims.

[0065] Furthermore, in describing representative embodiments, the specification may have presented methods and / or processes as a specific sequence of steps. However, the method or process should not be limited to the specific order of steps described herein, to the extent that it does not depend on such a specific order. As will be understood by those skilled in the art, other sequences of steps are also possible. Therefore, the specific order of steps set forth in the specification should not be construed as a limitation of the claims. Moreover, the claims concerning the method and / or process should not be limited to the steps performed in the written order, and those skilled in the art will readily understand that these orders can be varied and still remain within the spirit and scope of the embodiments of this application.

[0066] This application provides a temporary parking planning method, such as... Figure 1 As shown, the method may include steps S101-S104:

[0067] S101. Obtain device information for all monitoring devices on the road network;

[0068] S102. Determine the monitoring lane bound to each monitoring device through the device information, and filter the road sections that can be planned for temporary parking spaces based on the information of the monitoring lanes.

[0069] S103. Statistically analyze the lane flow information of road sections that are selected for temporary parking space planning;

[0070] S104. Determine the selectable temporary parking time period based on the lane flow information.

[0071] In an exemplary embodiment of this application, a road information collection module, a temporary parking space analysis module, and a temporary parking space scoring module may be provided.

[0072] In an exemplary embodiment of this application, the road information collection module can be configured to collect road and vehicle information through monitoring equipment installed on main roads and auxiliary roads, providing analytical data for parking space planning and rationality. The temporary parking space analysis module can be configured to perform preliminary temporary parking space planning based on road information obtained from monitoring equipment. The temporary parking space scoring module can be configured to perform secondary analysis and evaluation of temporary parking space planning based on relevant data such as traffic flow, pedestrian flow, and temporary parking space demand obtained from monitoring equipment.

[0073] In the exemplary embodiments of this application, the solutions of the embodiments of this application will be described in detail below.

[0074] In an exemplary embodiment of this application, before implementing the embodiments of this application, monitoring equipment can first be installed based on the city's road network. When installing the monitoring equipment, it is essential to ensure that the roads can monitor both vehicular and pedestrian / non-motorized vehicle lanes, ensuring no blind spots at intersections and coverage of the monitoring equipment on the road network. Mobile monitoring equipment can be constructed on auxiliary roads or non-motorized vehicle and pedestrian lanes according to the monitoring range of the monitoring equipment.

[0075] In an exemplary embodiment of this application, the monitoring equipment installed on the road network can collect equipment information, as well as road and vehicle information, through a road information collection module.

[0076] In an exemplary embodiment of this application, preliminary temporary parking space planning can be performed using the temporary parking space analysis module.

[0077] In an exemplary embodiment of this application, the device information may include, but is not limited to, its location, the monitoring lane, and the monitoring direction.

[0078] In an exemplary embodiment of this application, the step of filtering road segments suitable for temporary parking space planning based on the information of the monitored lane may include:

[0079] Based on the information of the monitored lanes, each monitoring device is merged, and the merging status of each monitoring device is determined;

[0080] Based on the merging status of each monitoring device, the road sections suitable for temporary parking space planning are selected.

[0081] In an exemplary embodiment of this application, the device information of the monitoring device can be used to obtain the association relationship between monitoring devices (e.g., merging situation). Based on the association relationship, road segments that can be initially screened for temporary parking space planning can be selected, and the road segment information corresponding to the screened road segments that can be screened for temporary parking space planning can be marked.

[0082] In exemplary embodiments of this application, as Figure 2 As shown, the lines marked with letters represent a partial road network diagram of a certain city. It should be noted that... Figures 2-9 Any names and reference numerals therein are some embodiments of the present application and have no effect on the protection scope of the present application embodiments. Therefore, whether the names and reference numerals are clear or not will not affect the content of the present application embodiments.

[0083] In an exemplary embodiment of this application, the step of merging each monitoring device based on the information of the monitoring lane and determining the merging status of each monitoring device may include:

[0084] The type of the corresponding road segment is determined based on the location of the monitoring equipment on the road network; the types include: one-way one-way street, two-way one-way street, one-way multi-lane street, and two-way multi-lane street;

[0085] For the monitoring devices on the one-way multi-lane road and the two-way multi-lane road, the monitoring devices at the intersections of the road network are used as merging points. A preset merging strategy is used to attempt to merge the monitoring devices within a preset range centered on the merging point, so as to merge the monitoring devices to the merging point; and the merging results are used to determine whether the monitoring devices on the one-way multi-lane road and the two-way multi-lane road are mergingable monitoring devices.

[0086] The monitoring devices on both the one-way and two-way one-way streets are determined to be non-mergeable monitoring devices.

[0087] In an exemplary embodiment of this application, based on the checkpoints (such as intersections) and road relationships bound to all monitoring devices, monitoring devices corresponding to road sections such as one-way streets and two-way streets can be marked to facilitate differentiation. These one-way streets and two-way streets are road sections where temporary parking spaces cannot be planned.

[0088] In exemplary embodiments of this application, as Figure 3 The diagram shows one-way streets and two-way one-way road sections in the road network. The monitoring devices on these roads can be marked, and no further processing of these monitoring devices is required.

[0089] In an exemplary embodiment of this application, based on all the acquired device information, monitoring devices that are a certain distance apart can be grouped into a group (depending on the city road planning, the main purpose is to merge the monitoring devices at one intersection or other intersections), so that all monitoring devices are concentrated at all intersections, and the monitoring devices at the same intersection are merged into the same point (which can be called the merging point, which can be a single monitoring device).

[0090] In an exemplary embodiment of this application, specifically, the monitoring device can be assigned to a suitable reference point based on the product of the number of lanes in the monitoring direction of each monitoring device and the width of a single lane, the absolute distance between the monitoring device (not a reference point or a summarizing point) and any reference point, and the nature of the monitoring lane to which the monitoring device (not a reference point or a summarizing point) is bound (e.g., only a straight lane, including both straight and turning lanes, only a turning lane); wherein, each monitoring point can correspond to one or more reference points.

[0091] In an exemplary embodiment of this application, the preset merging strategy may include:

[0092] One or more monitoring devices that are less than or equal to a preset first distance threshold from the merging point and whose monitoring direction is in the road network direction are selected as reference points; each monitoring device that is less than or equal to the preset first distance threshold from the merging point and whose monitoring direction is in the same direction as any reference point is selected as the monitoring point corresponding to that reference point.

[0093] Calculate the absolute distance between each reference point and each corresponding monitoring point, and calculate the product of the number of lanes in the monitoring direction of each monitoring point and the width of a single lane;

[0094] When the product is greater than or equal to the absolute distance, and the monitoring lane bound to the first monitoring point corresponding to the reference point is only a straight lane, then the first monitoring point is merged into the reference point.

[0095] When the product is less than the absolute distance, monitoring points that are in the same direction as the monitoring direction of the reference point are discarded.

[0096] The merged reference points and their monitoring directions are merged into the merged point.

[0097] In exemplary embodiments of this application, as Figure 3 As shown, point A on the road network can be used as the first merging point to obtain monitoring devices within a radius R. One or more monitoring devices that are closest to point A (e.g., the distance to point A is less than or equal to a preset first distance threshold) and whose monitoring direction is in the road network direction can be selected. Using these one or more monitoring devices as reference points, the absolute distance between monitoring devices (i.e., monitoring points) in the same monitoring direction as these reference points can be calculated, and the number of lanes monitored by each monitoring point multiplied by the width of a single lane can be calculated. If the product of the two values ​​is greater than or equal to the absolute distance, the corresponding monitoring devices (monitoring points) in the same direction can be merged into the reference point. If the product is less than the absolute distance, the corresponding monitoring point is discarded. Then, several reference points and the monitoring directions of the reference points in the road network direction can be merged into point A.

[0098] In exemplary embodiments of this application, specific implementations are given below: Figure 4 As shown, monitoring devices A1, A2, A3, A4, Y1, and Y2 are located at point A with radius R. A1, A2, and Y2 monitor from A to C, while A3, A4, and Y1 monitor from A to B. The distances from each monitoring device to point A are calculated. Assuming A1 and A3 are the closest points to point A in their respective directions, A1 and A3 can be used as reference points in each direction. Then, the distances from monitoring points A2 and Y2 to A1, and from monitoring points A4 and Y1 to A3, can be calculated. If the number of lanes in the same direction (AC) is 2, and the number of lanes in the same direction (AB) is 4, then... , If the absolute distance between A1 and A2 is given, then point A2 can be merged into point A1. , If the distance between A1 and Y2 is the absolute distance, then point Y2 is discarded. , If the absolute distance between A3 and A4 is given, then point A4 will be merged into point A3. , If the absolute distance between A3 and Y1 is given, then point Y1 is discarded. Then, the monitoring directions of points A1 and A3, as well as the monitoring directions of points A1 and A3, are merged into point A.

[0099] In an exemplary embodiment of this application, another embodiment of the merging strategy is given below, wherein the preset merging strategy may further include:

[0100] One or more monitoring devices that are less than or equal to a preset first distance threshold and whose monitoring direction is in the road network direction are selected as reference points;

[0101] Calculate the product of the number of lanes in the monitoring direction of the monitoring devices that are less than or equal to a preset first distance threshold from the merging point and the width of a single lane;

[0102] When any first monitoring device is bound to a monitoring lane that includes a straight lane and a turning lane, wherein the straight lane corresponds to a first reference point and the turning lane corresponds to a second reference point, if the product of the first monitoring device is less than or equal to the absolute distance between the first monitoring device and the first reference point and the second reference point respectively, then the traffic flow ratio of the included straight lane and the turning lane on the monitoring lane is calculated respectively, and the first monitoring device is merged into the second reference point according to the direction corresponding to the turn, and the traffic flow ratio and monitoring direction of the corresponding point of the first monitoring device are marked;

[0103] When any second monitoring device is bound to a monitoring lane that only includes a turning lane, and the turning lane corresponds to a third reference point, if the product of the second monitoring device is less than or equal to the absolute distance between the first reference point and the third reference point, then according to the direction corresponding to the turning, the second monitoring device is merged into the third reference point, and the monitoring direction of the corresponding point of the second monitoring device is marked.

[0104] The merged reference points and their monitoring directions are merged into the merged point.

[0105] In an exemplary embodiment of this application, if the merging point, with radius R, includes points where the absolute distance between the reference point and the monitoring device is less than the product of the number of lanes * lane width (such as monitoring devices that are neither reference points nor merging points), and the lane type bound to the monitoring device is not only a straight lane but also includes a left-turn lane or a right-turn lane (i.e., a turning lane), for example, the lane supports both straight and left turns, then by comparing the traffic flow of left turns and straight traffic on the road, the following can be obtained: , Then, based on the direction obtained after turning left, the monitoring device at that point (such as a non-reference point or a merge point) is merged into the nearest reference point, and the traffic share and monitoring direction of that point (such as a non-reference point or a merge point) are marked.

[0106] In an exemplary embodiment of this application, assuming that the lane mode bound to the monitoring device only supports left turns, the monitoring device of the point (not a reference point and a merging point) can be merged into the nearest point (reference point) in the same direction according to the direction obtained after the left turn, and the monitoring direction of the point (not a reference point and a merging point) can be marked.

[0107] In exemplary embodiments of this application, specific implementations are given below: Figure 5 As shown, point A is the merging point of the intersection, and A1 and A2 are the nearest points (i.e., reference points) in the AA1 and AA2 directions, respectively. Then, based on the lane conditions of point F (the monitoring device that is neither a reference point nor a merging point), point F is merged into point A1 or A2, and the proportion of point F merged into point A1 or A2 is calculated at the same time.

[0108] In an exemplary embodiment of this application, after the merging of point A is completed, the next road network intersection can be found along the road network to determine the next merging point, and the aforementioned merging method can be used to merge all the monitoring devices on the roadside within a preset range of the merging point (e.g., the distance from the merging point is less than or equal to a preset first distance threshold).

[0109] In an exemplary embodiment of this application, if there is no monitoring equipment at the intersection of the road network, the intersection can be merged into the next intersection along the lane direction according to the driving direction of the lane at the intersection. However, it must be ensured that the number of lanes in all driving directions at the intersection is greater than 2. If one of the driving directions is a single lane, the point where the lane direction is located will not be merged into the next intersection in the same direction.

[0110] In exemplary embodiments of this application, specific implementations are given below: Figure 6 As shown, point X is the next road network intersection from point A. M, U, H, and J represent the lanes in each direction of point X, where M is a single lane in the CX direction, U is a single lane in the XA direction, and H and J are two lanes in the XE direction. No monitoring equipment was found with point X as the center and R as the radius. Therefore, road network intersection X needs to be merged into another road network intersection. Since CX and XA are single lanes, X cannot be merged into point A. Since XE is a two-lane direction, point X can be merged into point E, retaining the point and marking it as unmergeable and the direction in which it cannot be merged. If CX and XA are also two-lane directions, then point X can be merged into both point E and point A, with the direction of merging indicated.

[0111] In an exemplary embodiment of this application, the step of filtering the road segments suitable for temporary parking space planning based on the merging status of each monitoring device may include:

[0112] The road segments in the direction of travel of the lane where the monitoring equipment that can be merged is located are divided into road segments where temporary parking spaces can be planned.

[0113] The road sections in the direction of travel of the lane where the monitoring equipment cannot be merged are designated as road sections where temporary parking spaces cannot be planned.

[0114] In an exemplary embodiment of this application, based on the merging of intersection points (road network intersections) in the aforementioned scheme, the road segments with planable temporary parking spaces can be classified for the first time. Specifically, the road network segments and lane directions where the intersection points that can be merged are located can be classified as road segments with planable temporary parking spaces, while the road network segments and lane directions where the intersection points that cannot be merged are classified as road segments without planable temporary parking spaces.

[0115] In an exemplary embodiment of this application, before determining the selectable temporary parking period based on the lane flow information, the method further includes: constructing an internal traffic flow system for urban roads based on the lane flow information.

[0116] In an exemplary embodiment of this application, after determining the road sections where temporary parking spaces can be planned and the road sections where temporary parking spaces cannot be planned, an internal traffic flow system for urban roads can be constructed on the road sections where temporary parking spaces can be planned.

[0117] In an exemplary embodiment of this application, constructing an internal traffic flow system for urban roads based on the lane flow information may include:

[0118] After collecting lane flow information from each monitoring device within a set statistical time period on road sections selected for temporary parking space planning, the flow vectors corresponding to each merging point are superimposed based on the merging relationship between each monitoring device and the merging point to construct the flow vector corresponding to each merging point; the flow vector corresponding to each merging point includes at least: lane flow and lane travel direction.

[0119] Based on the different driving directions in the lanes, a scatter plot is drawn in a preset rectangular coordinate system, and each point in the rectangular coordinate system is connected by a curve; wherein, the horizontal axis of the rectangular coordinate system is the time point, and the vertical axis is the magnitude of the flow vector.

[0120] In an exemplary embodiment of this application, traffic flow data can be statistically analyzed using monitoring equipment on urban roads. Traffic flow vectors are then constructed sequentially at each merging point, and vectors in the same direction at the merging points are superimposed. The traffic flow vector at each merging point may include at least: lane flow rate and lane travel direction.

[0121] In exemplary embodiments of this application, as Figure 7 The diagram shown is a schematic of the lane flow vector after the merging points are superimposed.

[0122] In an exemplary embodiment of this application, the statistical time can be the duration of each green light within the monitoring area. It can statistically analyze the lane traffic flow information within each green light duration on each monitoring device, and then perform traffic flow vector superposition on the traffic flow within the monitoring area based on the binding relationship between each monitoring device and the merging point.

[0123] In an exemplary embodiment of this application, a scatter plot is drawn in a Cartesian coordinate system (the horizontal axis can be a time point and the vertical axis can be the magnitude of the flow vector) according to different directions (lane driving direction), and each point in the scatter plot is connected by a smooth curve.

[0124] In an exemplary embodiment of this application, determining the selectable temporary parking period based on the lane flow information may include:

[0125] The maximum passability C for each lane in the driving direction corresponding to each merging point is calculated according to the preset calculation formula.

[0126] In the rectangular coordinate system and The straight line divides the curve in the scatter plot;

[0127] In the Cartesian coordinate system, greater than The time period corresponding to the curve interval is taken as the optimal travel time period. The time period corresponding to the curve interval is taken as the good passage period, and less than The time period corresponding to the curve interval is taken as the worst travel time period;

[0128] The optimal traffic time period and the good traffic time period are used as the initial selectable temporary parking time periods.

[0129] In an exemplary embodiment of this application, the maximum passability within the green light duration for different directions (lane driving directions) of each merging point can be calculated according to a preset calculation formula.

[0130] In an exemplary embodiment of this application, the preset calculation formula may include:

[0131] ;

[0132] Where T represents the green light duration, S represents the length of the road segment, and d1 represents the length per unit vehicle. This indicates the permissible speed of traffic on this road segment. V represents the maximum permissible speed of this road segment. This represents the number of vehicles that can pass through per unit of time.

[0133] In an exemplary embodiment of this application, the functional relationship between speed and the number of vehicles that can pass can be derived from the above calculation formula as follows:

[0134]

[0135] Among them, when hour, , This indicates the maximum number of vehicles that can pass through, or the maximum throughput.

[0136] In an exemplary embodiment of this application, based on the scatter plots of each merge point in each direction and the calculated maximum passability in each direction corresponding to each merge point, a Cartesian coordinate system can be drawn. and A straight line can divide the curve in a scatter plot, allowing for the division of curves larger than 1000. The time interval is used as the optimal travel time. and Between and including and The time period is considered a good travel period, and will be less than The time period is taken as the worst travel time period, and the corresponding time period and labels of excellent, good, and poor are recorded for each direction at each merging point.

[0137] In an exemplary embodiment of this application, determining the selectable temporary parking period based on the lane flow information may further include:

[0138] In the Cartesian coordinate system, for the selected optimal travel time period, good travel time period, and worst travel time period, each is shifted downwards by a preset y-value, and the curve is then rechecked against the straight line. and The segmented curve interval;

[0139] Will still satisfy greater than The time period corresponding to the curve interval is taken as the temporary parking time period;

[0140] The original condition was greater than or , now transformed The curved section is used as the second optional temporary parking period.

[0141] In an exemplary embodiment of this application, based on the time period labels (excellent, good, poor) in the direction of each selected marker point, the time periods labeled "excellent" and "good" can be further filtered, and these time periods are used as the initial temporary parking time periods. The filtered time periods can be categorized downwards in a Cartesian coordinate system. The curve was moved (the downward movement here is to take into account that when temporary parking spaces are planned, the reduction in vehicle lanes will have the greatest impact on vehicle and non-motorized vehicle traffic, but the impact on pedestrian traffic will be relatively small). After the movement, the curve was checked again. and The intersection of the straight lines will still be large. The time period within the designated interval, which is considered the permitted temporary parking period, will be adjusted from the previous period of more than [a certain number of hours]. , and Between and including and The time period is changed to less than The time period is marked as the second selectable temporary parking period.

[0142] In an exemplary embodiment of this application, after determining the available temporary parking time period and the second selectable temporary parking time period, the available temporary parking time period and the second selectable temporary parking time period can be further modified by the temporary parking space scoring module.

[0143] In an exemplary embodiment of this application, the method may further include:

[0144] Based on the preset dwell time calculation formula, the dwell time for the selected temporary parking period and the second selected temporary parking period are calculated respectively.

[0145] The traffic flow of all lanes marked as the optimal traffic time period, the good traffic time period, and the worst traffic time period on all road segments where temporary parking spaces can be planned is statistically analyzed, and the average lane traffic flow in each lane direction during the statistical time period within the optimal traffic time period, the good traffic time period, and the worst traffic time period on each road segment where temporary parking spaces can be planned is calculated.

[0146] The time required for all the remaining parking space to flow out is calculated based on the parking volume and average lane flow on the road segment where temporary parking spaces can be planned; the selected temporary parking time period and the second selected temporary parking time period are then adjusted based on the calculated time period.

[0147] The revised optional temporary parking period is taken as the optimal temporary parking period, and the revised second optional temporary parking period is taken as the suboptimal temporary parking period.

[0148] In an exemplary embodiment of this application, based on the available temporary parking time period and the second optional temporary parking time period selected in the aforementioned scheme, the dwell volume in the excellent and good time periods of the available temporary parking time period and the dwell volume in the second optional temporary parking time period can be calculated respectively (the dwell volume represents the vehicles, non-motorized vehicles, people, etc. that flow into and stop in the area).

[0149] In an exemplary embodiment of this application, the dwell time within the region can be the sum of the relative magnitudes of the vectors at two adjacent merging points on the road, and then the sum of the vector magnitudes of inward aggregation minus the sum of the vector magnitudes of outward diffusion. For example... Figure 8 As shown:

[0150] .

[0151] In an exemplary embodiment of this application, traffic flow data for all green light durations within a period marked as a poor passage time can be calculated, and then the average traffic flow for each direction within the green light duration of each poor passage time can be calculated: ;in, This represents the traffic flow data during the i-th green light duration, where n is a positive integer greater than 1.

[0152] In an exemplary embodiment of this application, for merging points on the same road within the same time period, the outflow proportion of the resident volume can be determined by calculating the proportion of outward diffusion flow in relative directions. For example... Figure 8 As shown:

[0153] ;

[0154] .

[0155] In an exemplary embodiment of this application, based on the previously calculated dwell volume and internal inflow volume, the required green light duration can be calculated to allow all the internal dwell volume to flow out. The calculated total required time (total green light duration) can be used to verify and correct the temporary parking time period and the second optional temporary parking time period on the corresponding road segment.

[0156] In an exemplary embodiment of this application, the time period after the temporary parking period of the available temporary parking space has been verified and corrected can be taken as the optimal temporary parking period, and the time period after the second selectable temporary parking period has been verified and corrected can be taken as the suboptimal temporary parking period.

[0157] In exemplary embodiments of this application, the solutions of this application embodiment include at least the following technical advantages:

[0158] 1. A method for analyzing road parking spaces using automatic intersection merging and vector overlay.

[0159] 2. Select all intersections (crossroads or T-junctions) on the road network as the merge points;

[0160] 3. Select all boundary points within the area as temporary merging points (i.e., reference points). These reference points must be within a preset threshold range where monitoring equipment exists, and the road to which the reference point belongs must have multiple lanes traveling in the same direction.

[0161] 4. The method for merging monitoring devices at a certain point is as follows: merging is performed in the same direction based on the direction of the lanes monitored by the monitoring devices. Situations such as straight-ahead + left-turn are merged into the straight-ahead direction. Situations where the straight-ahead direction is rotated 90° clockwise or counterclockwise by a left or right turn are also merged into the same direction. All monitoring devices are then merged to the merge point. If there are no monitoring devices at the merge point, but multiple lanes exist in the same direction of travel in the lane, the merge point is moved to the next merge point in that direction.

[0162] In exemplary embodiments of this application, the solutions of the embodiments of this application include at least the following technical effects:

[0163] 1. Improve the rationality of temporary parking spaces and temporary parking periods set up on roads;

[0164] 2. Make reasonable use of urban road resources, improve the utilization rate of urban roads, and reduce illegal parking in the city;

[0165] 3. Reduce conflicts between people and vehicles caused by unreasonable planning.

[0166] This application also provides a temporary parking planning device 1, such as... Figure 9 As shown, it may include a processor 11 and a computer-readable storage medium 12, wherein the computer-readable storage medium 12 stores instructions that, when executed by the processor 11, implement any of the above-described temporary parking planning methods.

[0167] In the exemplary embodiments of this application, any of the aforementioned temporary parking planning methods are applicable to this device embodiment, and will not be described in detail here.

[0168] It will be understood by those skilled in the art that all or some of the steps, systems, or apparatuses disclosed above, and their functional modules / units, can be implemented as software, firmware, hardware, or suitable combinations thereof. In hardware implementations, the division between functional modules / units mentioned above does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed collaboratively by several physical components. Some or all components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit (ASIC). Such software may be distributed on a computer-readable medium, which may include computer storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and can be accessed by a computer. Furthermore, it is well known to those skilled in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

Claims

1. A method of temporary parking planning, characterized by, The method includes: Obtain device information for all monitoring devices on the road network, including: location, associated monitoring lane, and monitoring direction; The monitoring lane bound to each monitoring device is determined by the device information, and road sections that can be planned for temporary parking spaces are filtered according to the information of the monitoring lanes. The process involves: statistically analyzing lane flow information for road sections suitable for temporary parking space planning; constructing an internal traffic flow system for urban roads based on this information, including: collecting lane flow information from each monitoring device within a set statistical time period on the selected road sections suitable for temporary parking space planning; superimposing traffic flow vectors for each merging point based on the merging relationship between each monitoring device and the merging point; constructing a traffic flow vector corresponding to each merging point; the traffic flow vector corresponding to each merging point includes at least: lane flow and lane driving direction; plotting a scatter plot in a preset rectangular coordinate system based on different lane driving directions, and connecting each point in the rectangular coordinate system with a curve; wherein the horizontal axis of the rectangular coordinate system represents time points, and the vertical axis represents the magnitude of the traffic flow vector; The process of determining selectable temporary parking periods based on the lane flow information includes: calculating the maximum passability C for each lane in the direction of travel corresponding to each merging point; determining the optimal passability period, the good passability period, and the worst passability period based on C; and using the optimal passability period and the good passability period as the initial selectable temporary parking periods. The process of filtering road sections suitable for temporary parking space planning based on the information from the monitored lanes includes: Based on the information of the monitored lanes, each monitoring device is merged, and the merging status of each monitoring device is determined, including: The type of the corresponding road segment is determined based on the location of the monitoring equipment on the road network; the types include: one-way one-way street, two-way one-way street, one-way multi-lane street, and two-way multi-lane street; For the monitoring devices on the one-way multi-lane road and the two-way multi-lane road, the monitoring devices at the intersections of the road network are used as the merging points. Based on the lane direction bound to the monitoring devices and the distance between the monitoring devices, the monitoring devices within a preset range centered on the merging point are attempted to be merged, and some monitoring devices are grouped together. Based on the merging attempt results, it is determined whether the monitoring devices on the one-way multi-lane road and the two-way multi-lane road are mergingable monitoring devices. The monitoring equipment on the one-way street and the two-way street are all determined to be non-mergeable monitoring equipment; the road segments in the driving direction of the lanes where the monitoring equipment that can be merged are located are divided into road segments where temporary parking spaces can be planned.

2. The temporary parking planning method according to claim 1, characterized in that, The preset merging strategy includes: One or more monitoring devices that are less than or equal to a preset first distance threshold from the merging point and whose monitoring direction is in the road network direction are selected as reference points; each monitoring device that is less than or equal to the preset first distance threshold from the merging point and whose monitoring direction is in the same direction as any reference point is selected as the monitoring point corresponding to that reference point. Calculate the absolute distance between each reference point and each corresponding monitoring point, and calculate the product of the number of lanes in the monitoring direction of each monitoring point and the width of a single lane; When the product is greater than or equal to the absolute distance, and the monitoring lane bound to the first monitoring point corresponding to the reference point is only a straight lane, then the first monitoring point is merged into the reference point. When the product is less than the absolute distance, monitoring points that are in the same direction as the monitoring direction of the reference point are discarded. The merged reference points and their monitoring directions are merged into the merged point; or, The preset merging strategy includes: One or more monitoring devices that are less than or equal to a preset first distance threshold and whose monitoring direction is in the road network direction are selected as reference points; Calculate the product of the number of lanes in the monitoring direction of the monitoring devices that are less than or equal to a preset first distance threshold from the merging point and the width of a single lane; When any first monitoring device is bound to a monitoring lane that includes a straight lane and a turning lane, wherein the straight lane corresponds to a first reference point and the turning lane corresponds to a second reference point, if the product of the first monitoring device is less than or equal to the absolute distance between the first monitoring device and the first reference point and the second reference point respectively, then the traffic flow ratio of the included straight lane and the turning lane on the monitoring lane is calculated respectively, and the first monitoring device is merged into the second reference point according to the direction corresponding to the turn, and the traffic flow ratio and monitoring direction of the corresponding point of the first monitoring device are marked; When any second monitoring device is bound to a monitoring lane that only includes a turning lane, and the turning lane corresponds to a third reference point, if the product of the second monitoring device is less than or equal to the absolute distance between the first reference point and the third reference point, then according to the direction corresponding to the turning, the second monitoring device is merged into the third reference point, and the monitoring direction of the corresponding point of the second monitoring device is marked. The merged reference points and their monitoring directions are merged into the merged point.

3. The temporary parking planning method according to claim 1, characterized in that, The determination of the optimal passage time period, the good passage time period, and the worst passage time period based on C includes: The curve in the scatter diagram is segmented by a straight line pair in the rectangular coordinate system and ​ In the Cartesian coordinate system, greater than The time period corresponding to the curve interval is taken as the optimal travel time period. The time period corresponding to the curve interval is taken as the good passage period, and less than The time period corresponding to the curve interval is taken as the worst travel time period.

4. The temporary parking planning method according to claim 1, characterized in that, The step of determining the selectable temporary parking period based on the lane flow information also includes: In the Cartesian coordinate system, for the selected optimal travel time period, good travel time period, and worst travel time period, each is shifted downwards by a preset y-value, and the curve is then rechecked against the straight line. and The segmented curve interval; Will still satisfy greater than The time period corresponding to the curve interval is taken as the temporary parking time period; The original condition was greater than or , now transformed The curved section is used as the second optional temporary parking period.

5. The temporary parking planning method according to claim 4, characterized in that, The method further includes: According to the preset dwell time calculation formula, the dwell time of the first optional temporary parking period and the second optional temporary parking period are calculated respectively. The dwell time is the sum of the vector magnitudes of the relative directions at two adjacent merging points on the road, and then the sum of the vector magnitudes of the inward convergence is subtracted from the sum of the vector magnitudes of the outward diffusion. The traffic flow of all lanes marked as the optimal traffic time period, the good traffic time period, and the worst traffic time period on all road segments where temporary parking spaces can be planned is statistically analyzed, and the average lane traffic flow in each lane direction during the statistical time period within the optimal traffic time period, the good traffic time period, and the worst traffic time period on each road segment where temporary parking spaces can be planned is calculated. The time required for all the remaining parking space to flow out is calculated based on the parking volume and average lane flow on the road segment where temporary parking spaces can be planned; the selected temporary parking time period and the second selected temporary parking time period are then adjusted based on the calculated time period. The revised optional temporary parking period is taken as the optimal temporary parking period, and the revised second optional temporary parking period is taken as the suboptimal temporary parking period.

6. A temporary parking planning device, characterized in that, The device includes a processor and a computer-readable storage medium storing instructions that, when executed by the processor, implement the temporary parking planning method as described in any one of claims 1-5.

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