CN107045783B - Road network accurate driving operation method and system based on appointed travel - Google Patents
Road network accurate driving operation method and system based on appointed travel Download PDFInfo
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- CN107045783B CN107045783B CN201710362288.0A CN201710362288A CN107045783B CN 107045783 B CN107045783 B CN 107045783B CN 201710362288 A CN201710362288 A CN 201710362288A CN 107045783 B CN107045783 B CN 107045783B
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Abstract
The invention relates to the field of intelligent transportation systems, in particular to a road network accurate driving operation method and system based on appointed travel, and the main scheme is the road network accurate driving operation method based on the appointed travel, and the method comprises the following steps: step 1: a terminal of a reservation vehicle sends a travel plan and real-time positioning information to an intelligent traffic management system; step 2: the intelligent traffic management system sends the optimal travel time, the initial path planning and the travel estimation time to the reserved vehicle; and step 3: the intelligent traffic management system makes and optimizes a traffic flow balance distribution scheme and a traffic signal control timing scheme of a real-time road network. The method can lead the system to accurately master the traffic flow information in advance, optimize and adjust the road network traffic flow balanced distribution and traffic signal control timing scheme, distribute the optimal travel time and the initial path planning of appointed vehicles, and realize the purposes of ordered, stable and efficient driving operation of the road network.
Description
Technical Field
The invention relates to the field of intelligent traffic systems, in particular to a road network accurate driving operation method and system based on appointed travel.
Background
In recent years, the urban traffic problem in China is gradually generated along with the progress of urbanization, and the urban traffic problem is more sharply expressed along with the further depth of urbanization, so that traffic congestion becomes the urban disease facing a large city. People feel the traffic jam most intuitively, namely the travel time is prolonged and the driving speed is reduced. The consequence is that the overall operation efficiency of the road network is reduced, thereby bringing a series of problems of increasing the oil consumption of motor vehicles, increasing traffic pollution, easily causing traffic accidents, influencing the vehicle traffic, increasing the psychological burden of travelers and the like. Crowded traffic not only reduces the efficiency of city operation, but also influences the work efficiency, quality of life and social order of travelers to a great extent.
In order to deal with the problem of urban traffic, many big cities at home and abroad pass through road construction projects, but the increase of the holding amount of motor vehicles still cannot be met. For this reason, many large cities also adopt corresponding traffic demand management measures to limit the traffic flow to adapt to the supply of roads. Some foreign cities can adapt to the supply of roads by collecting congestion fees in the rush hour of traffic, and the effect of the congestion fees is continuously weakened even if the congestion fees rise year by year in ten years, and even the cities have the tendency of more collecting and more blocking; some large-city traffic management departments in China also limit traffic flow by means of traffic control measures (such as single-day and double-day traffic control) and the like, and are feared to have long-term effect.
In order to solve the contradiction between supply and demand of traffic, each large-city traffic management department builds an intelligent traffic system, and the understanding of the reasons for urban traffic problems is enhanced. In recent years, mobile network communication, vehicle intelligent terminals and existing intelligent traffic management systems are developed, the acquired traffic data provide an effective means for traffic managers to research public travel laws, the limitation that the traditional fixed vehicle detector acquires traffic information is broken through, and complete and accurate vehicle travel data are acquired; meanwhile, the intelligent traffic management system provides real-time road condition information, travel path planning information service and the like for public travelers by using the mobile internet.
The road traffic jam problem is that the road cannot adapt to the increase of traffic flow, the traffic distribution and the traffic jam time of a road network are unbalanced, and a traffic management system cannot accurately acquire real-time traffic information, so that disordered dynamic traffic travel is difficult to control, and the aim of improving the operation efficiency of the road network is fulfilled.
At present, the intelligent traffic management in cities in China is a development process from a small-scale single traffic signal control system to a large-scale intelligent traffic control management system in cities, and the intelligent traffic control management system takes a traffic signal control system as a center and is matched with an intelligent traffic control management system integration platform of a traffic information management, traffic communication, traffic monitoring and traffic guidance system. The urban intelligent traffic control management system collects traffic information through detectors such as loop coils or videos, usually collects passing or existing traffic information, and the information is used as the basis of traffic prediction of the intelligent traffic control management system, which is lagging traffic prediction, so that the system lags the organization of traffic flow in an area, and a traffic signal control system is also a passive control and lagging mode.
CN 201510478132.X discloses a navigation method and a navigation system of a vehicle, wherein the method comprises the following steps: the vehicle terminal acquires a plurality of driving paths and reports the driving paths and current vehicle condition information to the Internet of vehicles cloud server; the Internet of vehicles cloud server inquires path characteristic information and historical vehicle condition information of each driving path; and judging whether the vehicle terminal can smoothly reach the destination or not according to the current vehicle condition information and the historical vehicle condition information, if so, selecting an optimal driving path from the driving paths which can smoothly reach the destination according to the corresponding path characteristics, and pushing the optimal driving path to the vehicle terminal.
With the introduction of new technologies such as a mobile internet technology, an intelligent traffic control management system is combined with a navigation system, and road network traffic information to be generated is acquired in advance through travel reservation of a vehicle terminal, so that accurate and active control traffic information is brought to the intelligent traffic control system. The vehicle terminal reduces the travel cost through travel appointment, and obtains accurate travel time, initial path planning and travel time. According to the accurate driving operation control method provided by the embodiment of the invention, the road network balanced traffic flow is planned in advance and the reliable guide information is given to the appointed vehicle according to the road network capacity, the past traffic information and the appointed vehicle flow, so that the purposes of accurate control of a road network driving operation system and stable travel time of the vehicle are better ensured.
The existing intelligent traffic control management system is not combined with the dynamic path planning of a navigation system, the traffic information is lagged, and the traffic dynamic organization and the traffic signal control are passive; most of the dynamic path planning of the navigation system is to plan a driving route by combining historical road conditions, planned routes or the historical road conditions and real-time traffic information, but the traffic control and management are not combined with the existing intelligent traffic control management system, and the road network traffic cannot be distributed in a balanced manner.
The disadvantages are obvious, firstly, the intelligent traffic management system and the navigation system cannot plan the travel of the reserved vehicle according to the road network load; secondly, the intelligent traffic management system cannot predict the traffic flow to be generated in advance, and an optimized traffic organization scheme and a traffic signal control timing scheme are formulated; secondly, the intelligent traffic management system cannot acquire vehicle position information and real-time traffic flow of a road network, and the best time trip and steering guidance of the reserved vehicle is realized; thirdly, the intelligent traffic management system and the navigation system fail to prompt the appointed traffic flow according to the timing time of the traffic signal and fail to start the green light start of the signal period when the appointed traffic flow arrives; its effect on traffic mitigation at peak times is limited.
Disclosure of Invention
The invention aims to provide a road network accurate driving operation method and system based on appointed travel, which can regulate and control the operation efficiency of a road network by coordinating vehicles and systems through a mobile interconnection technology.
In order to achieve the purpose, the method for accurately driving the vehicle on the road network based on the appointed trip is provided, relates to a terminal and a system, and comprises the following steps:
step 1: a terminal of a reservation vehicle sends a travel plan and real-time positioning information to an intelligent traffic management system; the intelligent traffic management system acquires the traffic load of the road network in the reserved area in real time;
in the method for running the road network accurately based on the appointed travel, the travel plan comprises a proposed travel time, a starting point position and a terminal point position;
step 2: the intelligent traffic management system obtains the optimal travel time, initial path planning and travel estimation time according to the travel plan, the real-time positioning information and the road network traffic load of the reserved vehicle and road values prestored in the intelligent traffic management system, and distributes the optimal travel time, the initial path planning and the travel estimation time to the terminals of the reserved vehicles;
in the method for running the road network accurately based on the appointed trip, the initial path plan is a path plan given when the vehicle makes an appointment, and the path plan is required to be continuously updated according to real-time traffic conditions in actual road network running until the appointed vehicle reaches the destination;
in the method for running the road network accurately based on the appointed travel, the appointed vehicle obtains the travel time of the system and the initial path planning for the appointed vehicle and starts according to the travel time and the initial path planning.
And step 3: the intelligent traffic management system formulates, optimizes and adjusts a road network traffic balance distribution scheme and a traffic signal control timing scheme according to the past real-time traffic information and the determined traffic conditions, and guides the determined vehicle to turn optimally or start the green light start of a signal cycle according to the predicted determined arrival time of the traffic by combining the intelligent terminal of the vehicle; the appointed traffic flow is a set of travel routes of the same route or road section of the plurality of appointed vehicles in the step 2.
In the above road network accurate driving operation method based on appointed travel, step 2: the intelligent traffic management system distributes the number of reserved vehicles in each time period of the road network according to the travel plan of the reserved vehicles, the real-time positioning information and the road network traffic load of the reserved area.
In the method for running the road network accurately based on the appointed travel, in step 2, the intelligent traffic management system allocates the optimal travel time, the initial path planning and the travel estimation time to the reserved vehicle terminal according to the travel plan of the reserved vehicle, the real-time positioning information, the road network traffic load and the road value in the reserved area;
under the same condition, the road values of different vehicle types are different, for example, the road values of public transport vehicles and special vehicles are higher than those of other vehicles by a first preset value A.
In the above mentioned precise driving operation method for road network based on appointed travel, in step 2, the road value is determined by a history record of the vehicle in an appointed process, the history record includes a number of times B that the vehicle obeys a dynamic travel path plan given by an intelligent transportation management system or a ratio B1 of the number of times to the total number of times of the appointment;
the road value historical record also comprises a reservation time C of a dynamic path which is the same as the starting position and the end position of the current reservation in the appointed total times, and a second preset value D is determined according to B, C or B1 and C;
under the same condition, the higher the second preset value D is, the higher the road value is.
In the road network accurate driving operation method based on appointed travel, the traffic signal control timing scheme includes a signal period, a green-to-letter ratio, a phase difference and a starting time of a periodic green light.
In the method for running the road network accurately based on the appointed trip, the terminal is a mobile phone or a vehicle-mounted intelligent terminal bound as an appointed vehicle.
In the above mentioned road network accurate driving operation method based on appointed travel, in step 3, the specific operation of the intelligent traffic management system for adjusting road network traffic control according to the optimization of real-time traffic flow and appointed traffic flow is as follows:
according to the reserved traffic flow and the real-time traffic flow of the road sections and intersections in the past road network, the number of reserved vehicles in each time period is planned in advance according to the road network load.
According to appointed traffic flow, real-time traffic flow of road sections and intersections of the conventional road network and road network traffic load, a road network balanced traffic distribution scheme and a traffic signal timing scheme are planned, optimized and adjusted in advance.
And setting a green light starting point of the starting signal period according to the predicted arrival time of the traffic flow.
In the above mentioned road network accurate driving operation method based on appointed travel, the method further includes step 4:
and 4, step 4: and repeating the steps 2-3 when the traffic condition change occurs in the road network, such as an emergency.
Meanwhile, the invention also discloses an appointed trip-based road network accurate driving operation system, which comprises the following components:
the system comprises a receiving unit, a processing unit and a processing unit, wherein the receiving unit is used for reserving travel plans and real-time positioning information sent by a terminal of a vehicle;
the intelligent traffic management system distributes the optimal travel time, the initial path planning and the travel estimation time to the reserved vehicle obtaining terminal according to the travel plan, the real-time positioning information, the road network traffic load and the road value of the reserved vehicle;
the management and control unit is used for formulating, optimizing and adjusting a road network traffic balance distribution scheme and a traffic signal control timing scheme according to the conventional real-time traffic flow and appointed traffic flow conditions; and guiding the appointed vehicle to optimally turn, and starting the green light of the signal period according to the predicted arrival time of the appointed traffic flow.
Compared with the prior art, the invention has the beneficial effects that:
the invention introduces the concept of the vehicle terminal and the road value into the intelligent traffic management system through travel plan, real-time positioning information, road value setting and travel plan of appointed vehicles, and has the advantages that:
the method comprises the following steps that firstly, an intelligent traffic management system determines the number of scheduled reserved vehicles according to traffic load of a road network of a reserved area;
secondly, the intelligent traffic management system accurately formulates, optimizes and adjusts a road network traffic flow balanced distribution and traffic signal control timing scheme in advance according to the traffic flow of the predicted road network;
thirdly, guiding the appointed vehicle to turn or starting a green light of a precise starting signal period by the intelligent traffic management system according to the arrival time of the appointed vehicle in the predicted road network;
and fourthly, the appointed vehicle obtains the optimal time for traveling, dynamic path planning and reliable travel time.
Fifthly, vehicles which are preferentially passed can be determined according to vehicle types, and special vehicles such as ambulances, fire trucks, buses, military police vehicles and the like are preferentially arranged on the optimal route or guide the route with the shortest travel time;
sixth, the driving habits and driving destinations of the vehicle can be judged according to the road values of the appointed vehicle, generally, for example, the vehicle does not generally follow the travel route planning given by the system, the vehicle is very likely to influence the appointed vehicle in the road network, such as illegal lane change, non-driving according to traffic signals and the like, so that the vehicle has potential risks of traffic accidents and traffic congestion, and for example, the vehicle is likely to belong to an individual commuting vehicle when the vehicle is driven at a fixed starting terminal station for a large number of times in a specific time period, such as a peak in the morning and evening, so that the dynamic route planning of the vehicle for preferentially arranging travel is higher than that of other vehicles, and is beneficial to stably reaching the destination.
By introducing the road value, the driving habits of drivers can be potentially influenced, so that the driving habits are subjected to the management of the method, the accuracy of data collection can be higher in a macroscopic view, the decision made by the method is more accurate, and the effect of relieving road traffic jam is larger.
Seventhly, for the situation that the vehicle which is not reserved enters the control road area network, the travel planning of the appointed vehicle and the stability of a driving operation system are influenced, in order to ensure that the planned time of the appointed vehicle in the road network reaches the destination and the system operation is stable, the situation that the vehicle enters the control area in a non-reserved mode is recorded through the license plate recognition technology of the existing video monitoring system, and corresponding management measures are implemented if necessary.
Drawings
FIG. 1 is a flow chart of example 1 of the present invention;
fig. 2 is a block diagram showing the structure of embodiment 2 of the present invention.
Detailed Description
The invention will now be further described with reference to the following examples, which are not to be construed as limiting the invention in any way, and any limited number of modifications which can be made within the scope of the claims of the invention are still within the scope of the claims of the invention.
Example 1
As shown in fig. 1, a road network accurate driving operation method based on appointed travel relates to a terminal and a control center, and includes the following steps:
step 1: a terminal of a reservation vehicle sends a travel plan and real-time positioning information to a control center; the travel plan comprises a proposed travel time, a starting point position and an ending point position.
The real-time positioning information is positioning information such as a GPS (global positioning system) or a Beidou of a vehicle-mounted intelligent terminal or a mobile phone, and the information is used for making a dynamic trip plan, and the real-time positioning information is continuously updated and pushed to the intelligent traffic management system, so that the intelligent traffic management system is facilitated to obtain real-time vehicle position and traffic flow data information, and the appointed vehicle is facilitated to obtain an updated trip path plan.
Step 2: the intelligent traffic control management system distributes an initial travel plan of a reserved vehicle according to a travel plan, real-time positioning information, road network traffic load of a reserved area and a road value, wherein the road value is determined by the type of the vehicle and an agreed historical record; the initial travel plan comprises the optimal departure time, the driving path and the travel time.
The initial travel planning is that after the intelligent traffic control management system receives travel information of reserved vehicles, the possibility of receiving reservation and the optimal time of distribution, the travel path and the travel time are determined according to the maximum traffic capacity of the road sections and intersections of the road network in the past, traffic organization measure conditions (such as traffic construction, traffic events and the like) and the current appointed traffic flow and the traffic flow which can be borne by each road section.
The road value can be determined according to the corresponding standard of the actual situation, if the road value determination cardinal number is 100 minutes, under the same condition, the road values of public transport means and special vehicles are higher than the road values of other vehicles by a first preset value A, A can be set to different values according to different vehicles, such as fire trucks and ambulances set to 20 minutes, military police vehicles set to 15 minutes, and buses set to 10 minutes. For example, the road value of the fire fighting truck is 120 points, the priority level is highest, the road value is maximum, and the shortest path must be arranged to ensure that the flow of the fire fighting truck can pass quickly.
Meanwhile, the appointed historical record of the appointed vehicle also influences the road value, and the historical record comprises the times B of the dynamic trip plan given by the terminal obeying the traffic management system or the proportion B1 of the times of the dynamic trip plan in the appointed total times;
the appointed historical record also comprises an appointed number C which is the same as the starting position and the end position of the current appointment in the appointed total number, and a second preset value D is determined according to B, C or B1 and C;
for example, in the process of 100 appointed trips of the first vehicle, the guidance of the method is always followed, and the number of times of driving the first vehicle to the starting point and the ending point accounts for 30% of the total appointed times, so that the vehicle may be a commuter vehicle on and off duty, the second preset value D of the vehicle may reach 9 points, the road value of the vehicle may reach 109 points, and the priority level of the vehicle is also higher.
On the contrary, if the guidance probability of not complying with the method is 20% during 100 appointed trips of the second car, and the number of times of driving the start point and the end point accounts for 10% of the total appointed times, the second preset value D of the car can reach 2 points, the road value can reach 102 points, the priority level is low, and the system can arrange the car to allocate the trip thereof in a sub-optimal mode.
And step 3: the intelligent traffic control management system formulates and optimizes a road network traffic balanced distribution and traffic signal control timing scheme in advance according to real-time traffic flow, appointed traffic flow information, past traffic flow information and road values, for example, an appointed vehicle is distributed in a balanced manner to run on different road sections in a road network by a dynamic traffic distribution model, and the period, the split ratio and the phase difference of corresponding traffic signal control are adjusted according to the appointed traffic flow; the appointed traffic flow is a set of the same path or road segment of a plurality of appointed vehicles in the step 2. Specifically, based on appointed travel, the intelligent traffic control management system obtains traffic flow information in advance, and corresponding appointed vehicles are distributed in the road network in a balanced mode according to road traffic capacity of the road network and a traffic dynamic distribution model, so that traffic jam caused by unbalanced traffic distribution of the road section is reduced; for a traffic signal control intersection, the intelligent traffic control management system based on the appointed trip sets the period, the green-to-letter ratio and the phase difference of traffic signal control in advance according to the appointed traffic flow, and starts the green light initiation of the signal period when the appointed traffic flow arrives, so that the traffic jam caused by traffic signal delay is reduced.
And 4, step 4: and repeating the steps 2-3 when the traffic condition change occurs in the road network, such as an emergency. Updating the travel route plan of the appointed vehicle according to the travel plan and the real-time positioning information from the new starting point; then the intelligent traffic control management system optimizes and adjusts a road network traffic flow balance distribution scheme and a traffic signal control timing scheme according to real-time traffic flows and appointed traffic flows.
In the embodiment, the intelligent traffic management system is combined with the route planning of the navigation system by appointing travel, and the concept of the road value is introduced into the intelligent traffic management system, so that the advantages that:
firstly, the intelligent traffic management system determines the number of scheduled vehicles to be reserved according to the traffic load of a reserved road network;
secondly, the intelligent traffic management system accurately makes, optimizes and adjusts a road network traffic flow balanced distribution and traffic signal control timing scheme in advance according to the appointed traffic flow of the predicted road network;
thirdly, the intelligent traffic management system guides the appointed vehicle to turn or accurately starts the green light initiation of the signal period according to the predicted arrival time of the appointed vehicle in the road network, so that the traffic signal delay is reduced;
and fourthly, the appointed vehicle acquires information of travel at the best time and dynamic path planning and reliable travel time.
Fifthly, vehicles which are preferentially passed can be determined according to vehicle types, and special vehicles such as ambulances, fire trucks, buses, military police vehicles and the like are preferentially arranged on the optimal route or guide the route with the shortest travel time;
sixth, the driving habits and driving destinations of the appointed vehicle can be judged according to the road values, generally, for example, if the vehicle does not follow the dynamic travel plan given by the system, the vehicle may affect other appointed vehicles running in the road network, such as illegal lane change, running without a traffic signal, and the like, so that the vehicle has potential risks of traffic accidents and traffic congestion; also for example, if the appointment vehicle is often driven at a fixed starting terminal during a particular time period, such as a morning and evening rush hour, the vehicle may belong to an individual commuting vehicle, so that the appointment vehicle is scheduled to travel with great priority on its road value, and a corresponding route is scheduled to facilitate its stable arrival at the destination.
By introducing the road value, the driving habits of drivers can be potentially influenced, so that the driving habits are subjected to the management of the method, the accuracy of data collection can be higher in a macroscopic view, the decision made by the method is more accurate, and the effect of relieving road traffic jam is larger.
Seventhly, for the road network of the region where the vehicle is not appointed to enter the appointment, the travel planning of the appointed vehicle and the stability of a driving operation system are influenced, in order to ensure that the planned time of the appointed vehicle in the road network reaches the destination and the system operation is stable, the vehicle is recorded to enter the appointment control region without the appointment through the license plate recognition technology of the existing video monitoring system, and corresponding management measures are implemented if necessary.
Similarly, the invention can be applied to the control of free passage on the holiday of the expressway, and a passage (toll gate) for the appointed vehicle to enter the expressway, a license plate recognition system and the like need to be added.
Example 2
As shown in fig. 2, this embodiment provides an accurate driving operation system for a road network based on appointed travel for implementing embodiment 1, including:
the system comprises a receiving unit, a processing unit and a processing unit, wherein the receiving unit is used for reserving travel plans and real-time positioning information sent by a terminal of a vehicle;
the planning unit is used for distributing the optimal travel time, the initial path planning and the travel estimation time to the reserved vehicle obtaining terminal according to the travel plan, the real-time positioning information, the road network traffic load and the road value of the reserved area;
the management and control unit is used for formulating, optimizing and adjusting a road network traffic balance distribution scheme and a traffic signal control timing scheme in advance according to the conventional real-time traffic flow and appointed traffic flow conditions; and guiding the appointed vehicle to optimally turn, and starting the green light of the signal period according to the predicted arrival time of the appointed traffic flow.
The operation system is matched with an intelligent terminal and a traffic control management system of a vehicle in a mutual cooperation mode, the terminal sends a trip plan and real-time positioning information to a receiving unit, the receiving unit transmits data to a planning unit, road network traffic flow is reasonably and evenly distributed through a dynamic traffic distribution model of a management and control unit, and a signal timing scheme of a traffic signal control system is formulated and optimally adjusted.
The above is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that several variations and modifications can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (8)
1. A road network accurate driving operation method based on appointed travel relates to a terminal and a system, and is characterized by comprising the following steps:
step 1: a terminal of a reservation vehicle sends a travel plan and real-time positioning information to an intelligent traffic management system; the intelligent traffic management system acquires the traffic load of the road network in the reserved area in real time;
step 2: the intelligent traffic management system obtains the optimal travel time, initial path planning and travel estimation time according to the travel plan, the real-time positioning information, the road network traffic load and the road value of the reserved vehicle, distributes the optimal travel time, the initial path planning and the travel estimation time to the reserved vehicle, and starts as an appointed vehicle according to the optimal travel time;
and step 3: the intelligent traffic management system formulates and optimizes a road network traffic balance distribution scheme and a traffic signal control timing scheme in advance according to traffic information and an appointed traffic flow condition, and gives real-time road condition information and traffic signal control guidance in the appointed vehicle driving process until the appointed vehicle reaches a destination;
the route value is determined by the type of the reserved vehicle and the appointed historical record.
2. The road network accurate driving operation method based on appointed travel according to claim 1, characterized in that: the trip plan comprises a planned optimal departure time, a starting point position and an end point position; the initial path planning comprises the prediction of a running path and travel time, and the path planning can be continuously and reasonably updated by appointing vehicles in travel according to the real-time traffic road condition information of the system and combining with the regulation and control variable representing traffic prediction.
3. The road network accurate driving operation method based on appointed travel according to claim 1, characterized in that: in step 2, the intelligent traffic management system distributes the optimal travel time, initial path planning and travel estimation time to the reserved vehicle obtaining terminal according to the travel plan, the real-time positioning information, the reserved area road network traffic load and the road value of the reserved vehicle;
under the same condition, road values of different vehicle types are different, wherein the road values of public transport vehicles and special vehicles are higher than those of other vehicles by a first preset value A;
in step 2, the road value of the appointed vehicle is determined by the past appointed historical record of the vehicle, and the historical record comprises the times B of the terminal complying with the dynamic path planning given by the intelligent traffic management system or the proportion B1 of the terminal occupying the appointed total times;
the appointment history record also comprises an appointment number C which is the same as the starting position and the ending position of the appointment and is in the total appointment number, and a second preset value D is determined according to B, C or B1 and C;
under the same condition, the higher the second preset value D is, the higher the road value is.
4. The road network accurate driving operation method based on appointed travel according to claim 1, characterized in that: in the step 3, a timing scheme for traffic signal control is formulated in advance by a path planning system, and the optimal turning signal or the green light start of a starting signal period of an appointed vehicle is guided to start according to the predicted arrival time of the appointed traffic flow of the initial path planning; the appointed traffic flow is a set of a plurality of travel route appointed vehicles on the same road section at the same time in the step 2, so that the appointed traffic flow and road values of the traffic flow in the road section are controlled within a reasonable balanced distribution range by matching with a path system, and the road network is more accurately operated.
5. The road network accurate driving operation method based on appointed travel according to claim 1, characterized in that: the terminal is an intelligent terminal for the vehicle bound in the reservation.
6. The road network accurate driving operation method based on appointed travel according to claim 1, characterized in that: in the step 3, the specific operation of the intelligent traffic management system for optimizing and adjusting the traffic control of the road network according to the previous real-time traffic information and the appointed traffic information is as follows:
planning the number of the reserved vehicles in each time period according to the reserved traffic flow, the real-time traffic flow of the road sections and the intersections in the past road network and the road network load;
according to appointed traffic flow and real-time traffic flow of road sections and intersections in the conventional road network, a road network balanced traffic distribution scheme and a traffic signal timing scheme are formulated and optimized and adjusted in advance;
and setting a green light starting point for starting a traffic signal period according to the predicted appointed arrival time of the traffic flow.
7. The road network accurate driving operation method based on appointed travel according to claim 1, characterized in that: further comprising the step 4:
and 4, step 4: and repeating the steps 2-3 when the traffic condition change occurs in the road network, such as an emergency.
8. The utility model provides a road network accurate driving operation system based on appoint trip which characterized in that: the method comprises the following steps:
the system comprises a receiving unit, a processing unit and a processing unit, wherein the receiving unit is used for reserving travel plans and real-time positioning information sent by a terminal of a vehicle;
the route planning unit is used for distributing the optimal travel time, the initial route planning and the travel estimation time to the reserved vehicle obtaining terminal according to the travel plan, the real-time positioning information, the road network traffic load and the road value of the reserved area of the reserved vehicle;
the management and control unit is used for formulating, optimizing and adjusting a road network traffic balance distribution scheme and a traffic signal control timing scheme according to the conventional real-time traffic flow and appointed traffic flow conditions; and guiding the appointed vehicle to optimally turn, and starting the green light of the signal period according to the predicted arrival time of the appointed traffic flow.
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| CN107730877A (en) * | 2017-11-06 | 2018-02-23 | 上海电机学院 | Towards the reservation trip management system and method for the quick trunk road network of overhead road of city |
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| CN108680178A (en) * | 2018-02-22 | 2018-10-19 | 北京交通大学 | The future transportation planning system and method shared with path data based on location information |
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