CN115188182A - Linear bus stop shared overtaking lane system and control method thereof - Google Patents
Linear bus stop shared overtaking lane system and control method thereof Download PDFInfo
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Abstract
The invention relates to a linear bus stop shared overtaking lane system and a control method thereof, belonging to the technical field of road traffic. The shared overtaking method is suitable for a bus stop station arranged on an upstream road section near a crossing, the bus stop station is arranged on a city road on a motor vehicle lane in a linear mode, a shared overtaking area is a shared road section allowing social vehicles and buses to travel together, and the right of way is set to be that the public vehicles take precedence over the social vehicles; after the shared overtaking area is opened, only allowing the bus to run in the shared overtaking area is defined as that the bus is guaranteed to run out of the bus lane to finish the overtaking process under the condition of social vehicle congestion.
Description
Technical Field
The invention relates to a linear bus stop shared overtaking lane system and a control method thereof, belonging to the technical field of road traffic.
Background
At the position of an upstream road section of a current urban road close to an intersection, when a straight-line bus platform arranged on a bus lane is frequently jammed in a social lane, unnecessary queuing is often caused because overtaking cannot be achieved, and more traffic problems exist. In the road section, when the signal lamp of the road intersection is red, social vehicles which need to enter the intersection and stop by the signal lamp need to be queued. When the traffic flow is large, the vehicles waiting for the traffic lights at the intersection can queue for a long distance, and the motor vehicles can queue at the social lane close to the bus stop, namely the position 2, as shown in fig. 1. At the moment, if the bus at the bus stop station has a long time for the passengers to get on and get off, the subsequent buses which do not need to stop can be forced to queue, and the buses can slowly move forward along with the front bus flow. In the process, the bus can be retained at the stop for a long time, the following bus cannot get on or off the bus in time, or the adjacent motor vehicle lanes are blocked and cannot exceed the bus in front, so that the bus service level is reduced and the jam is caused for a long time.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a linear bus stop shared overtaking lane system and a control method thereof, which can improve the service level of buses, reduce the queuing delay of the buses at the bus station near a crossing without stopping, and reduce the traffic conflict between the buses and social vehicles to the maximum extent.
The technical scheme of the invention is as follows:
a linear bus stop shared overtaking lane system is applied to an urban road at the upstream of a road intersection, the urban road is bidirectional six lanes or more, a motor vehicle lane is provided with a bus exclusive lane and a social lane, and the side of the bus exclusive lane is provided with a linear bus stop;
the shared overtaking lane system comprises a bus lane, a social lane, a linear bus stop platform, a shared overtaking area, a vehicle stop line, a road intersection, an intersection control signal lamp and a vehicle induction control device, wherein the shared overtaking area is positioned on the social lane adjacent to the bus lane and positioned on one side of the bus stop platform, and the vehicle stop line is arranged on the social lane at the starting point of the shared overtaking area and is a stop sign of the social vehicle;
the shared overtaking area is a shared road section allowing the social vehicles and the buses to run together, and the road right of the shared overtaking area is set to be prior to the social vehicles;
the vehicle induction control device is used for judging whether the shared overtaking area is opened or not, and only allowing the bus to run in the shared overtaking area after the shared overtaking area is opened.
The shared overtaking lane system can realize that a bus or other special vehicles quickly drive through a bus platform by means of the shared overtaking area when the social lanes are congested but the bus-only lanes are not congested, so that unnecessary time delay is reduced.
It should be noted that the necessary conditions for sharing the overtaking area setting are that the bus stop is in the form of a roadside straight-line bus stop, a bus lane is arranged on a road section, and the social lane is frequently blocked and cannot be overtaken by means of the bus lane. The shared overtaking region setting can satisfy, but is not limited to, the following four overtaking situations: the rear vehicle exceeds the front vehicle and stops the vehicle, and then the platform is stopped; after the rear car finishes getting on or off the passengers, the front car is overtaken to stop the car and the car is driven away; the non-local stop bus overtaking; regular buses and school buses and special vehicles such as ambulances and the like are passed by means of lanes.
Preferably, the vehicle induction control device comprises a vehicle detector and a shared overtaking area signal control device, and the shared overtaking area signal control device is used for displaying the opening or closing of the shared overtaking area and reminding the social vehicles of stopping at the vehicle stop line.
Preferably, the length d1 of the shared overtaking region is related to the actual queuing condition of the vehicles at the intersection, d1 is preferably 50-100m, and the range length is set to meet the necessary condition of setting of the bus overtaking lane and can be flexibly selected according to the actual distance between the platform and the road intersection and the traffic volume of the local road. Of course, the setting positions of the parking marks and the social vehicle induction control devices can be flexibly selected according to the actual distance between the platform and the road intersection and the traffic volume of the local road under the condition that the necessary conditions of the bus overtaking lane setting are met;
the distance of the vehicle stop line to the shared overtaking area is delta d, the value range of the delta d is 1-3m, and the vehicle stop line can be a stop line, a stop sign board and other road signs with indicating functions.
Preferably, the shared overtaking area is divided into an on state and an off state. In the starting state, the area only allows the public transport vehicles with overtaking requirements to run, and does not allow the social transport vehicles to run; in the closed state, the area is driven to be in a normal state, namely, social vehicles and public transport vehicles are allowed to drive together. The vehicle stop line is positioned at the starting point of the shared overtaking area, the vehicle induction control device can be arranged at a road section (position A) between the intersection signal lamp and the social vehicle stop line according to actual conditions, the distance between the vehicle stop line and the intersection is d, and d = delta d + d1+ d3+ d4;
preferably, the length d2 of the bus stop is 12-50m.
Preferably, the vehicle detector and the shared overtaking area signal control device are both arranged between the intersection and the shared overtaking area, and the distance from the intersection is d4, and the distance from the shared overtaking area is d3.
Preferably, the shared overtaking area needs to ensure that the shared overtaking area is not occupied when a social lane in front of the shared overtaking area is blocked, namely the queuing length of the social vehicles is just located at a position B in front of the shared overtaking area, so that the overtaking process of the bus with the overtaking demand is ensured, and the shared overtaking area meets the requirement that the social vehicles behind a vehicle stop line position C are released in time when the queuing vehicles in front of the shared overtaking area begin to dissipate, so that the delay of the social vehicles is avoided to the greatest extent, and the positions meet the following conditions:
wherein n is the number of the parked vehicles which can be accommodated between the shared overtaking area signal control device and the shared overtaking area (namely between the position A and the position B), a is the sum of the distance for keeping parking safety and the length of the vehicles, and L S The sum of the safe driving distance and the vehicle body length, delta t, of the urban roads in the set shared overtaking area i Delayed start response time, V, for queued vehicles i between shared passing zone signal control and shared passing zone (i.e., between positions A, B) b The average travel speed of the bus is specified for the road condition.
Preferably, the vehicle induction control device is provided with a chip with a data processing function, such as a single chip microcomputer, a DSP, an FPGA, an ARM and the like, and the vehicle detector and the shared overtaking signal control device are in signal connection with the chip;
the vehicle detector is used for collecting the driving information of the social vehicle, including the vehicle position and the vehicle parking time, preferably an inductance loop detector, an ultrasonic detector, an infrared detector, a radar detector or a video detector, and the detection principle can refer to the prior art;
the shared overtaking signal control device is a signal display device with indication function, such as a lane signal lamp, a flashing warning lamp and the like.
A control method of the linear bus stop shared overtaking lane system comprises the following steps:
(1) Acquiring real-time positions of buses, queuing information of social vehicles and control information of intersection control signal lamps;
(2) Judging whether a preset condition for opening a shared overtaking area is met or not according to the information acquired in the step (1);
(3) When the preset conditions are met, judging whether the shared overtaking area is opened or not according to the queuing information of the social vehicles;
(4) When social vehicles queue up, the shared overtaking area is started, and a starting command of the shared overtaking area is sent to the shared overtaking area signal control device to control the social vehicles to stop at a vehicle stop line so as to ensure that no social vehicles exist in the shared overtaking area;
when no social vehicles are queued, namely the queued social vehicles begin to dissipate, closing the shared overtaking area, sending a command of closing the shared overtaking area to the shared overtaking area signal control device, and releasing the social vehicles behind the vehicle stop line;
(5) And when the preset condition is not met, closing the shared overtaking area, sending a shared overtaking area closing instruction to the shared overtaking area signal control device, and releasing the social vehicles behind the vehicle stop line.
Preferably, in the step (1), the vehicle induction control device is in signal connection with a local bus dispatching system and an intersection control signal lamp, the bus dispatching system comprises bus information such as route running information, and the vehicle induction control device can respectively obtain real-time position information of the bus and whether the bus stops at a certain bus stop or not by means of a positioning system and the bus route running information which are carried on the bus; for example, the GPS and GIS technology can be used for positioning the position of each bus and intelligently reporting the bus stop, and after the technology is adopted, the bus information and the stop-and-go situation at a certain bus stop can be positioned in real time;
and acquiring the queuing information of the social vehicles in real time through a vehicle detector.
Preferably, in the step (2), when the acquired real-time position of the bus shows that the bus does not overtake at the current stop, the bus is judged in advance when the bus runs from the bus stop to the road intersection according to the control information of the intersection control signal lamp, as shown in the empty diagram during bus running in fig. 3, and when the bus runs from the bus stop to the road intersection, the intersection control signal lamp is green, the preset condition for opening the shared overtake area is met;
when the bus runs from the bus stop platform to the road intersection, the intersection control signal lamp is red, the preset condition for opening the shared overtaking area is not met, and the motor vehicle can run according to the instruction of the intersection control signal lamp;
the vehicle induction control device obtains the average speed and the real-time position information of bus running through the real-time bus information of the bus dispatching system, and the time of the bus reaching a road intersection is calculated, so that whether the bus needs to stop at the intersection for waiting after overtaking is judged, when the bus can directly pass through the intersection after overtaking is judged, a shared overtaking area can be considered to be started, namely whether the shared overtaking area is started is judged according to the social bus queuing information.
In this step, after the necessary conditions set for the shared passing area are satisfied, the shared passing area is considered to be set, and the preset conditions for opening the shared passing area can be judged. The shared overtaking area should be bus-preferred, in order to guarantee the overtaking road condition of the bus with overtaking requirement, the shared overtaking area needs to be matched with an induction signal lamp (namely a shared overtaking area signal control device) to control the standard stop of the social vehicles, the signal lamp needs to be considered to be in joint control with an intersection control signal lamp, when the overtaking of the bus is successfully completed, the bus can be prevented from continuing to stop at the intersection to wait, namely, the bus can pass through the intersection during the green light period, and the overtaking process is regarded as effective.
Preferably, the time T for overtaking buses to travel from the bus stop platform to the road intersection is selected on Comprises the following steps:
wherein, T b Maximum time, V, for a bus to enter a shared overtaking area and return to a bus lane after completing an overtaking process B The average speed at which the overtaking bus is traveling on the road segment,
for the random delay time caused by the vehicle during operation,
preferably, in the step (3), the queuing information of the social vehicles is acquired in real time according to the vehicle detector, and specifically, when the vehicle detector detects that the parking time of the social vehicles at the position of the vehicle detector is greater than or equal to a specified threshold (which can be set to be 3 s), it is determined that the vehicles start queuing; and when the social vehicle parking time is detected to be less than the specified threshold value, the queue is dissipated.
The threshold value specified in the step is preferably 3s, and can be other time, and the size of the threshold value range can be adjusted according to the actual queuing condition at the road intersection and the urban road grade.
In the invention, after the preset condition of opening the shared overtaking area is met, whether the shared overtaking area is opened or not can be judged by adopting the flow shown in figure 5 according to the obtained queuing and stopping time information of the vehicles in the social lane.
The invention is not described in detail, and the prior art can be adopted.
The invention has the beneficial effects that:
the invention mainly optimizes the overtaking process of the bus stop at the upstream road section close to the intersection, can form a shared overtaking bus area at the upstream road section close to the intersection, controls the stop of the bus at the shared overtaking bus area according to the real-time running condition of the bus, can fully improve the passenger service capability of the bus stop, effectively improve the service level of the bus and the passing capability at the intersection, and furthest reduce the conflict between the bus at the upstream road section close to the intersection and social vehicles.
Drawings
Fig. 1 is a first schematic application scenario of an embodiment of the present invention;
FIG. 2 is a diagram illustrating a second exemplary application scenario according to an embodiment of the present invention;
FIG. 3 is a time-space diagram of bus operation in one embodiment;
fig. 4 is a flowchart of a control method of the linear bus stop shared passing lane system according to an embodiment;
FIG. 5 is a flow diagram of detecting queuing information for social vehicles, according to an embodiment;
in the figure, 1-motor lane, 11-bus lane, 12-social lane, 2-shared overtaking area, 3-bus stop platform, 4-bus, 5-vehicle stop line, 6-vehicle induction control device, 61-vehicle detector, 62-shared overtaking area signal control device, 7-road intersection and 8-intersection control signal lamp.
The specific implementation mode is as follows:
in order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific examples, but not limited thereto, and the present invention is not described in detail and is in accordance with the conventional techniques in the art.
Example 1:
as shown in fig. 2, one of the conditions for the present invention is that in such a road section, social vehicles which need to enter the intersection and are stopped by the traffic lights need to be queued up when the traffic lights at the intersection are red. When the traffic flow is large, the vehicles waiting for the traffic lights at the intersection can queue for a long distance, and the motor vehicles can queue in the area marked 2. At this time, if the duration of the boarding and alighting tasks of the bus 4 located at the bus stop 3 is long, forced queuing of the subsequent buses which do not need to stop can be caused, and the buses can slowly advance along with the front bus flow. In the process, the buses can be retained at the bus stop 3 for a long time, the following buses cannot get in and get off passengers in time, or the adjacent motor vehicle lanes block up and cannot exceed the buses in front, so that the bus service level is reduced and the bus service level is blocked up for a long time.
The embodiment provides a linear bus stop shared overtaking lane system, which is applied to urban roads at the upper stream of a road intersection as shown in fig. 1-3, wherein the urban roads are bidirectional six lanes or more, a motor vehicle lane 1 is provided with a bus lane 11 and a social lane 12, and the side of the bus lane 11 is provided with a linear bus stop 3;
the shared overtaking lane system comprises a bus lane 11, a social lane 12, a linear bus stop platform 3, a shared overtaking area 2, a vehicle stop line 5, a road intersection 7, an intersection control signal lamp 8 and a vehicle induction control device 6, wherein the shared overtaking area 2 is positioned on the social lane adjacent to the bus lane 11 and positioned on one side of the bus stop platform, and the vehicle stop line 5 is arranged on the social lane at the starting point of the shared overtaking area and is a stop sign of the social vehicles;
the shared overtaking area 2 is a shared road section allowing the social vehicles and the buses to travel together, and the shared overtaking area 2 is set to be prior to the social vehicles by the buses 4;
the vehicle induction control device 6 is used for judging whether the shared overtaking area is opened or not, and only allowing the bus to run in the shared overtaking area after the shared overtaking area is opened.
The shared overtaking lane system can realize that when the community lanes are blocked and the bus-only lanes are not blocked, buses or other special vehicles quickly drive through the bus station by virtue of the shared overtaking area, so that unnecessary time delay is reduced.
It should be noted that the necessary conditions for sharing the overtaking area setting are that the bus stop is in the form of a roadside straight-line bus stop, a bus lane is arranged on a road section, and the social lane is frequently blocked and cannot be overtaken by means of the bus lane. The shared overtaking region setting can satisfy, but is not limited to, the following four overtaking situations: the rear vehicle exceeds the front vehicle and stops the vehicle, and then the platform is stopped; after the back car finishes getting on or off the passenger, the car overtakes the front car to stop and drive away; the non-local stop bus overtaking; the regular bus and the school bus and special vehicles such as an ambulance and the like are passed by means of the lane.
Example 2:
a linear bus stop shared overtaking lane system, as described in embodiment 1, except that the vehicle sensing control device 6 includes a vehicle detector 61 and a shared overtaking area signal control device 62, the shared overtaking area signal control device 62 is used for displaying the opening or closing of the shared overtaking area and reminding a social vehicle of stopping at a vehicle stop line;
the length d1 of the shared overtaking area 2 is related to the actual queuing condition of vehicles at the intersection, d1 is preferably 50-100m, and the range length is set under the necessary condition that the setting of the bus overtaking lane is met, and can be flexibly selected according to the actual distance between the platform and the road intersection and the traffic volume of the local road. Certainly, the setting positions of the parking signs and the social vehicle induction control devices can be flexibly selected according to the actual distance between the platform and the road intersection and the traffic volume of the local road under the condition of meeting the necessary conditions of setting the bus overtaking lane;
the distance between the vehicle stop line 5 and the shared overtaking area 2 is delta d, the value range of the delta d is 1-3m, and the vehicle stop line can be a stop line, a stop sign board and other road signs with indication functions.
Example 3:
a straight-line bus stop shared overtaking lane system, as described in embodiment 2, except that the shared overtaking area 2 is divided into an on state and an off state. In the starting state, the area only allows the public transport vehicles with overtaking requirements to run, and does not allow the social transport vehicles to run; in the closed state, the area is driven to be in a normal state, namely the social vehicles and the public transport vehicles are allowed to drive together. The vehicle stop line 5 is positioned at the starting point of the shared overtaking area, the vehicle induction control device 6 can be arranged at a road section position A between an intersection signal lamp and the social vehicle stop line according to actual conditions, the distance between the vehicle stop line 5 (at the position C) and the intersection is d, and d = delta d + d1+ d3+ d4;
preferably, the length d2 of the bus stop 3 is 12-50m.
Preferably, the vehicle detector 61 and the shared passing area signal control device 62 are both disposed at a distance d4 from the intersection and d3 from the shared passing area between the intersection and the shared passing area.
Example 4:
the sharing overtaking area 2 is different from the sharing overtaking area in that the sharing overtaking area is not occupied when a social lane in front of the sharing overtaking area is blocked, namely the queuing length of social vehicles is just positioned at a position B in front of the sharing overtaking area, so that the overtaking process of buses with overtaking requirements is ensured, and the sharing overtaking area meets the requirement that the social vehicles behind a vehicle stop line position C are released in time when the queuing vehicles in front of the sharing overtaking area begin to dissipate, so that the delay of the social vehicles is avoided to the maximum extent, and the positions meet the following conditions:
wherein n is the number of the parked vehicles which can be accommodated between the shared overtaking area signal control device and the shared overtaking area (namely between the position A and the position B), a is the sum of the distance for keeping the parking safety and the length of the vehicles, and L S The sum of the safe driving distance and the vehicle body length, delta t, of the urban roads in the set shared overtaking area i Delayed start response time, V, for queued vehicles i between shared passing zone signal control and shared passing zone (i.e., between positions A, B) b The average travel speed of the bus is specified for the road condition.
Example 5:
a straight-line type bus stop shared overtaking lane system is different from that in embodiment 4, a vehicle induction control device is provided with a chip with a data processing function, such as a single chip microcomputer, a DSP (digital signal processor), an FPGA (field programmable gate array), an ARM (advanced RISC machine) and the like, and a vehicle detector and a shared overtaking signal control device are in signal connection with the chip;
the vehicle detector 61 is used for collecting the traveling information of the social vehicle, including the vehicle position and the vehicle parking time, and is preferably an inductance loop detector, an ultrasonic detector, an infrared detector, a radar detector, a video detector or the like, and the detection principle of the vehicle detector can refer to the prior art;
the shared overtaking signal control device 62 is a signal display device having an indicating function such as a lane signal lamp or a flashing warning lamp.
Example 6:
a control method of a straight-line bus stop shared overtaking lane system is shown in figure 4 and comprises the following steps:
(1) Acquiring the real-time position of the public transport vehicle 4, the queuing information of the social transport vehicle and the control information of the intersection control signal lamp 8;
(2) Judging whether a preset condition for opening the shared overtaking area 2 is met or not according to the information acquired in the step (1);
(3) When the preset conditions are met, judging whether the shared overtaking area 2 is opened or not according to the queuing information of the social vehicles;
(4) When social vehicles are queued, the shared overtaking area 2 is started, and a command for starting the shared overtaking area is sent to the shared overtaking area signal control device 62 to control the social vehicles to stop at the vehicle stop line 5 so as to ensure that no social vehicle exists in the shared overtaking area 2;
when no social vehicles are queued, namely the queued social vehicles begin to dissipate, the shared overtaking area 2 is closed, a command for closing the shared overtaking area is sent to the shared overtaking area signal control device 62, and the social vehicles behind the vehicle stop line are released;
(5) And when the preset conditions are not met, the shared overtaking area 2 is closed, a shared overtaking area closing instruction is sent to the shared overtaking area signal control device, and the social vehicles behind the vehicle stop line are released.
Example 7:
a control method for a linear bus stop shared overtaking lane system, as described in embodiment 6, except that in step (1), a vehicle induction control device 6 is in signal connection with a local bus dispatching system and an intersection control signal lamp 8, the bus dispatching system includes bus information such as route operation information, and the vehicle induction control device 6 can respectively obtain real-time position information of a bus and whether to stop a certain bus stop by means of a positioning system and bus route operation information carried on the bus by itself; for example, the GPS and GIS technology can be used for positioning the position of each bus and intelligently reporting the bus stop, and after the technology is adopted, the bus information and the stop-and-go situation at a certain bus stop can be positioned in real time;
the queuing information of the social vehicles is acquired in real time through the vehicle detector 61.
Example 8:
a control method of a linear bus stop shared overtaking lane system, as described in embodiment 6, except that in step (2), when the acquired real-time position of the bus shows that there is an overtaking demand for a non-local stop bus, a pre-judgment is performed on the bus from the bus stop to the road intersection according to the control information of an intersection control signal lamp 8, as shown in an empty diagram during bus running in fig. 3, when the bus runs from the bus stop to the road intersection, the intersection control signal lamp is green, and a preset condition for opening a shared overtaking area is met;
when the bus runs from the bus stop platform to the road intersection, the intersection control signal lamp is red, the preset condition for opening the shared overtaking area is not met, and the motor vehicle can run according to the instruction of the intersection control signal lamp;
the vehicle induction control device obtains the average speed and the real-time position information of the bus running through the real-time bus information of the bus dispatching system, and therefore the time of the bus reaching a road intersection is calculated, whether the bus needs to stop at the intersection for waiting after overtaking is judged, when the bus can directly pass through the intersection after overtaking is overtaking, a shared overtaking area can be considered, and whether the shared overtaking area is started or not is judged according to the social bus queuing information.
In this step, when the necessary conditions set for the shared overtaking area are satisfied, the shared overtaking area is considered to be set, and the preset conditions for opening the shared overtaking area can be judged. The shared overtaking area should be bus-preferred, in order to guarantee the overtaking road condition of the bus with overtaking requirement, the shared overtaking area needs to be matched with an induction signal lamp (namely a shared overtaking area signal control device) to control the standard stop of the social vehicles, the signal lamp needs to be considered to be in joint control with an intersection control signal lamp, when the overtaking of the bus is successfully completed, the bus can be prevented from continuing to stop at the intersection to wait, namely, the bus can pass through the intersection during the green light period, and the overtaking process is regarded as effective.
Preferably, as shown in fig. 4, the overtaking bus travels from the bus stop to the road intersection for a time T on Comprises the following steps:
wherein, T b Maximum time, V, for a bus to travel into a shared overtaking area and return to a bus lane after completing an overtaking process B The average speed at which the overtaking bus is traveling on the road segment,
for the random delay time caused by the vehicle during operation,
example 9:
a control method of a straight-line bus stop shared overtaking lane system, as described in embodiment 6, except that in step (3), the queuing information of the social vehicles is obtained in real time according to a vehicle detector 61, specifically, as shown in fig. 5, when the vehicle detector 61 detects that the parking time of the social vehicles at the position is greater than or equal to a specified threshold value of 3s, it is determined that there is a vehicle queuing at the position; and when the social vehicle parking time is detected to be less than the specified threshold value, the queue dissipates.
In the invention, after the preset condition of opening the shared overtaking area is met, whether the shared overtaking area is opened or not can be judged by adopting the flow shown in figure 5 according to the obtained queuing and stopping time information of the vehicles in the social lane.
In this embodiment, when the vehicle detector detects that the social vehicle stopping time at position a is greater than the set threshold 3s, it is determined that there is a vehicle in line, the shared passing area signal control device changes to the red light, the social vehicle located behind the vehicle stop line is prohibited from passing, and the social vehicle located in front of the vehicle stop line can continue to travel forward to the front side of the shared passing lane segment position B and line up. During the red light period of the shared overtaking area signal control device, no social vehicles pass in the shared overtaking area, and only the buses are allowed to selectively pass by the front vehicles, such as buses, schools and special vehicles, such as ambulances, and the like, so that the overtaking process of the buses is ensured. When the situation that the social vehicles are in line for dissipation is detected, namely the vehicle detector at the position A detects that the social vehicles start to be started, the shared overtaking area signal control device is a green light, and the social vehicles are released. When the situation that a control signal lamp of a front intersection after a bus overtakes is green is met, namely the preset condition of opening the shared overtaking area is met, when the vehicle detector judges that the social lane is jammed, the shared overtaking area signal control device turns red, and the social vehicle positioned at the rear side of the vehicle stop line at the position C is forbidden to pass; and when the vehicles in the social lane are judged to be queued to dissipate, the shared overtaking area signal control device turns green, and the social vehicles behind the stop line of the vehicles are released.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A straight-line bus stop shared overtaking lane system is characterized in that the system is applied to an urban road at the upstream of a road intersection, the urban road is bidirectional six lanes or more, a motor lane is provided with a bus special lane and a social lane, and the side of the bus special lane is provided with a straight-line bus stop;
the shared overtaking lane system comprises a bus lane, a social lane, a linear bus stop platform, a shared overtaking area, a vehicle stop line, a road intersection, an intersection control signal lamp and a vehicle induction control device, wherein the shared overtaking area is positioned on the social lane adjacent to the bus lane and positioned on one side of the bus stop platform, and the vehicle stop line is arranged on the social lane at the starting point of the shared overtaking area and is a stop sign of the social vehicles;
the shared overtaking region is a shared road section allowing social vehicles and buses to travel together, and the road right of the shared overtaking region is set to be prior to the social vehicles;
the vehicle induction control device is used for judging whether the shared overtaking area is opened or not, and only allowing the bus to run in the shared overtaking area after the shared overtaking area is opened.
2. The linear bus stop shared overtaking lane system as defined in claim 1 wherein the vehicle sensing control device comprises a vehicle detector and a shared overtaking area signal control device, the shared overtaking area signal control device is used for displaying the opening or closing of the shared overtaking area and reminding the social vehicles of stopping at the vehicle stop line.
3. The linear bus stop shared overtaking lane system as recited in claim 2, wherein the shared overtaking area length d1 is 50-100m, the vehicle stopping line distance shared overtaking area distance is Δ d, and the value range of Δ d is 1-3m;
preferably, the vehicle stopping line is d from the intersection length, d = Δ d + d1+ d3+ d4;
preferably, the length d2 of the bus stop is 12-50m.
4. The linear bus stop shared overtaking lane system as set forth in claim 3, wherein the vehicle detector and the shared overtaking area signal control device are both disposed between the intersection and the shared overtaking area at a distance d4 from the intersection and d3 from the shared overtaking area.
5. The linear bus stop shared overtaking lane system according to claim 4, characterized in that the shared overtaking area on one hand needs to ensure that the shared overtaking area is not occupied when the social lane ahead of the shared overtaking area is congested, i.e. the queuing length of the social vehicles is just in front of the shared overtaking area, so as to ensure that the overtaking process of the bus with overtaking demand is completed, and on the other hand, the shared overtaking area meets the requirement that the social vehicles behind the vehicle stop line are released in time when the queuing vehicles ahead of the shared overtaking area starts to dissipate, so as to avoid the delay of the social vehicles to the maximum extent, and the position should meet the following conditions:
wherein n is the number of the parked vehicles which can be accommodated between the shared overtaking region signal control device and the shared overtaking region, a is the sum of the parking safety distance and the vehicle length, and L S The sum of the safe driving distance and the vehicle body length, delta t, of the urban roads in the set shared overtaking area i Delaying the start of the response time, V, for queuing vehicles i between the shared overtaking region signal control device and the shared overtaking region b The average travel speed of the bus is specified for the road condition.
6. The linear bus stop shared overtaking lane system as recited in claim 5, wherein the vehicle sensing control device is equipped with a chip with data processing function, and the vehicle detector and the shared overtaking signal control device are connected with the chip through signals;
the vehicle detector is used for collecting the driving information of the social vehicle, and is preferably an inductance loop detector, an ultrasonic detector, an infrared detector, a radar detector or a video detector;
the shared overtaking signal control device is a signal display device with indication function, such as a lane signal lamp, a flashing warning lamp and the like.
7. The control method of the straight-line bus stop shared passing lane system of claim 6, characterized by comprising the following steps:
(1) Acquiring real-time positions of public transport vehicles, queuing information of social transport vehicles and control information of intersection control signal lamps;
(2) Judging whether a preset condition for opening a shared overtaking area is met or not according to the information acquired in the step (1);
(3) When the preset conditions are met, judging whether the shared overtaking area is opened or not according to the queuing information of the social vehicles;
(4) When social vehicles are queued, the shared overtaking area is started, and a command for starting the shared overtaking area is sent to the shared overtaking area signal control device so as to control the social vehicles to stop at a vehicle stop line and ensure that no social vehicle exists in the shared overtaking area;
when no social vehicles are queued, namely the queued social vehicles begin to dissipate, closing the shared overtaking area, sending a command of closing the shared overtaking area to a shared overtaking area signal control device, and releasing the social vehicles behind the vehicle stop line;
(5) And when the preset condition is not met, closing the shared overtaking area.
8. The control method for the straight-line type bus stop shared overtaking lane system according to claim 7 is characterized in that in the step (1), the vehicle induction control device is in signal connection with a local bus dispatching system and an intersection control signal lamp, and the vehicle induction control device respectively obtains real-time position information of a bus and whether the bus stops at a certain bus stop or not by means of a positioning system and bus route running information which are carried on the bus;
and acquiring the queuing information of the social vehicles in real time through a vehicle detector.
9. The control method of the straight-line bus stop shared passing lane system according to claim 7, wherein in the step (2),
when the acquired real-time positions of the buses show that the buses which are not stopped at the station have overtaking requirements, pre-judging when the buses run from the bus stop station to the road intersection according to the control information of the intersection control signal lamp, and when the buses run from the bus stop station to the road intersection, the intersection control signal lamp is green, so that the preset condition of opening the shared overtaking area is met;
when the bus runs from the bus stop platform to the road intersection, the intersection control signal lamp is red, the preset condition for opening the shared overtaking area is not met, and the motor vehicle can run according to the instruction of the intersection control signal lamp;
preferably, the bus stops by passingTime T for platform to drive to road intersection on Comprises the following steps:
wherein, T b Maximum time, V, for a bus to enter a shared overtaking area and return to a bus lane after completing an overtaking process B The average speed of the overtaking bus traveling on the road segment,
for the random delay time caused by the vehicle in operation,
10. the control method of the straight-line bus stop shared passing lane system according to claim 7, wherein in the step (3), the queuing information of the social vehicles is obtained in real time according to the vehicle detector, and specifically, when the vehicle detector detects that the parking time of the social vehicles at the position of the vehicle detector is greater than or equal to a specified threshold value, the vehicle queuing is judged to be started; and when the social vehicle parking time is detected to be less than the specified threshold value, the queue is dissipated.
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