TWI506600B - The time - varying method of the period of time - Google Patents

Description

Gradient phase method during the conversion of the time system

The invention belongs to the optimization technology of the conversion procedure between the preset time systems of the No.1 intersection, and is based on the fact that most of the signal controllers have a gradual process of setting the time conversion system when formulating the full-time time plan, but most of them It is only after the transition point of the time system, and it is rarely considered to optimize the processing of the conversion process and the phase plan. Therefore, the present invention presupposes that the time-phase plan before and after the preset time conversion point is met in the design time conversion program, and the time conversion program is started before the preset time conversion point, and is completed after the conversion point. . The point in time from start-up to completion of the transition and the transition period decision between them are generated under the average vehicle delay during the minimized transition. The invention can be directly applied to the existing time conversion point, and can also be integrated into the full-time time plan optimization design program, and belongs to a type of road intersection optimization time-scheduled system that combines the time schedule planning process and the time system conversion logic. The method.

Road intersections are one of the most important traffic system bottlenecks in road transport road networks. If intersections are to achieve high regulatory performance, the most effective method is to guide road sections or intersections through the traffic control facility's signal system. Traffic flow. Whether the control system can function or not is closely related to the design of the time system; the time system design includes the phase plan, the design of the yellow and red hour periods, the determination of the period length, and the effective green light for each phase. Distribution and other elements. Any one of them The design of the prime is wrong, which may lead to road congestion, increase the potential anecdote and other results, thus increasing social costs. Therefore, a good time plan is an important part of improving the efficiency of intersections. It not only reduces the number of unnecessary stops and delays, but also reduces the consumption of gasoline and the safety of intersection operations.

In recent years, the development of computer technology and microelectronics technology, traffic log control strategy from traditional offline computing, to online computing, long-term to short-term strain, timing system, and dynamic table lookup, etc., in response to changes in time Traffic characteristics. The development of the traffic signal controller has been able to store and provide more online information to seek suitable time system. Moreover, due to the development of network technology, the Zhizhi control system can collect the information of various intersection detectors in a short time. Online calculations are carried out to develop appropriate traffic control strategies to meet the operational needs of intersections.

Today's semaphore controllers have built-in multiple time plans, which can be used to select the corresponding time plan when setting time or specific requirements. Therefore, the timing of the timing conversion generally occurs when a certain section of the road encounters or releases a specific fleet threshold, or when it meets different levels of traffic demand. For example, due to temporary service or control conditions, a particular road section often has to switch time to make the passages smooth, and then convert the time system back to the original setting. Another factor is the change in traffic demand, such as the difference in traffic volume between the peak hours of the upper and the middle hours or the peak time of the noon, so the whole day can be divided into several time periods, and each time period should also have a relative time system to match the difference. The level of traffic. As the time period shifts, the time conversion process must also be performed; the time conversion process refers to the process of converting the ongoing time plan to another set of new time plans. The factors to be considered in the conversion process include the number of cycles spent in the conversion process, the length of the cycle adjusted for each cycle, and the timing compensation.

In order to enable the computerized semaphore control system to function in response to changes in traffic demand, it is often necessary to change the chronograph plan frequently; however, frequent time-based changes can satisfy the flow. The need for quantitative changes, but if suddenly changed to the new time system, it will not only make it difficult for the driver to adapt, and may even cause traffic chaos and accidents. In many methods and literatures for the conversion of time and time, there are some simple interpretation methods for the time compensation method. For example, when the sign system performs the time conversion operation at a certain time point, if the ongoing cycle is not completed, Whether the length of the cycle time has been executed to half of the original length as the basis for judging whether to end the cycle, which is a method of completing the time conversion in one cycle; in addition, it is also considered to extend the time conversion operation to two to three cycles, And the method of equally compensating for the short period of time in each cycle. Obviously, too short a time conversion time or too drastic time change often impacts the traffic operation at the intersection, and the driver is not easy to adapt, which may lead to instantaneous traffic congestion and abnormal driving behavior, and even safety concerns; Although the conversion process is gentle, it is easy to fall into the shortcomings that make the intersection number system perform for a long time, increasing the delay of operation and the driver's intolerance. Therefore, the time point of the time conversion, the length of the conversion period, and the way of conversion are important issues in the time conversion process.

For the time conversion process, the present invention examines related conversion modes, including abrupt conversion method, main green light extension method, progressive conversion method, mutation conversion method, maximum green light conversion method, tilt conversion method, saddle point conversion method, and time phase compensation method. , and pay attention to the system. Regardless of the method used, the delay time cost of the conversion process at the intersection multi-time design process must not be ignored. Although there are many research and signal control systems that use the above-mentioned time conversion method, but it is rarely discussed for a long period of time, which is the most suitable sign conversion period; in addition, most of the past documents on the number conversion process only The conversion of the number of phases in the same time is discussed. However, the conversions with different time systems and time phases are rarely evaluated. Some studies are limited to non-overlapping phase transitions. Therefore, multi-temporal and overlapping The phase conversion design is also a feature of the present invention. In view of the fact that in the past, domestic and foreign studies on the conversion of the number of phases and the overlapping phases of the time are rare, the conversion of the practice units The industry is subject to subjective judgment and is difficult to be rigorous. It is obvious that the research and development of this method is an important topic and contribution in the field of traffic control.

It can be seen that there are still many shortcomings in the above-mentioned methods of use, which is not a good design, but needs to be improved.

The invention provides a lamp phase conversion decision for minimizing the running cost before and after the conversion point of the time, so as to achieve the adjustment when the phase and the phase sequence of the time before and after the conversion point are satisfied, and different lengths can be evaluated. The performance of the forward and backward traffic changes during the transition period and the conversion period.

The invention provides a gradual phase method during the conversion of the chronograph time, which is mainly the best conversion procedure between the planning schemes of the front and the back of the single intersection number. Before the termination of most time-based executions, there will be a period of division. This method is based on the termination time of the system. According to the length of the division period, a set of conversion procedures for the deferred period is generated. After the termination point of the system, The critical flow of the intersection under the front and back time system is changed from low to high, or from high to low, and a set of successive compensation conversion procedures is established. Therefore, the current conversion program is a sequence of conversion periods between the division period and the compensation period. design. The code control personnel can use this method to optimize the conversion cycle between the full-time schedules during the short-term conversion period, or incorporate this method into the direct full-time optimization plan design process.

The gradual phase method during the conversion of the time system of the present invention has the following advantages when compared with other conventional technologies:

1. The gradual phase method during the conversion of the chronograph system of the present invention can eliminate the current smooth interpolation The method implements the conversion of the time-based system, thus ignoring the operational performance changes between different traffic flows before and after the conversion of the time system, especially the traffic impact caused by the transition from low flow to high flow.

2. The gradual phase method during the conversion of the chronograph system of the present invention can solve the problem of the number of phases and the phase sequence of different time before and after the conversion of the time system, and provide a set of numbers. A good adjustment mechanism for the lamp phase conversion decision with the lowest operating cost before and after the Shishi system conversion point.

The detailed description of the preferred embodiments of the present invention is intended to be limited to the scope of the invention, and is not intended to limit the scope of the invention. The patent scope of this case.

In summary, this case is not only innovative in terms of space type, but also can enhance the above-mentioned multiple functions compared with the customary items. It should fully meet the statutory invention patent requirements of novelty and progressiveness, and apply for it according to law. This invention patent application, in order to invent invention, to the sense of virtue.

A10‧‧" lane

A20‧‧" lane

A30‧‧" lane

A40‧‧" lane

A50‧‧" lane

A60‧‧" lane

A70‧‧" lane

Figure 1 is a schematic diagram of a typical lane layout.

Figure 2 is a flow chart of the gradual phase method during the conversion of the chronograph system of the present invention.

Figure 3 is a schematic diagram showing the variation of the time of the present invention.

Figure 4 is a schematic diagram showing the variation of the time of the present invention.

The technical features, contents, and advantages of the present invention, as well as the advantages thereof, can be understood by the reviewing committee, and the present invention will be described in detail with reference to the accompanying drawings. The subject matter is only for the purpose of illustration and description. It is not intended to be a true proportion and precise configuration after the implementation of the present invention. Therefore, the scope and configuration relationship of the attached drawings should not be interpreted or limited. First described.

The present phase compensation mode of the present invention can be applied to time conversion between different phase numbers and/or overlapping phases, in addition to being applicable to time conversions of generally the same phase number and phase sequence; in other words, For the time control plan with different phase modes and phase numbers before and after the time conversion, the time phase compensation mode can be used for conversion.

In order to cope with the transition between multi-temporal and/or overlapping phases, the present invention proposes that the vehicle steering pattern is based on one lane of each steering traffic, on the grounds that from the perspective of time design, the road geometry is typically typical. The layout of the lane is shown in Figure 1. For example, in the case of a simple two-phase design, the layout patterns in Fig. 1 can be applied, but the shared lane mode of the lane A10 of the type one cannot be changed to the multi-temporal design in the time system conversion, so the design is in the code. At the time, usually only the left and right turn traffic is multiplied by a steering equivalent, and then merged into the straight traffic flow; the left lane A20 of the lane layout type 2 is used for the left turn and the straight traffic, but turns left. When the traffic volume is high, it will block the straight-through vehicle, so it often causes the straight-through vehicle to switch to the right lane A30. Therefore, unless the early opening or late closing design is adopted, the left lane can be regarded as the left detour lane (A de facto left-turn lane). The right turn traffic of the right lane is in phase with the straight traffic, and can be incorporated into the straight traffic flow calculation; similarly, the lane layout type 3 is similar to the type 2. In the design of the code, the layout of the lane is due to the geometry, and it cannot be set for a long time unless the directional splits are used. Phase number, so the multi-phase number is often assigned to Type 2 or Type 3. Therefore, in the multi-temporal design, the present invention assumes that each steering traffic takes up one lane.

The gradual phase method during the conversion of the time system of the present invention is based on the following parameters known: C _T T: the length of the period of the T-group time system (seconds); : The T-th group is a one-segment alternative conversion period (seconds) during the division of the T-group time; : The th-th conversion period (seconds) in the two-stage conversion procedure during the T-group time division division; : The estimated average delay of the intersection (veh-second) corresponding to the (one-segment split j+compensation) conversion procedure during the T-group time-to-time conversion; : The estimated average delay of the intersection (veh-second) corresponding to the (two-stage split j+compensation) conversion procedure during the T-group time-to-time conversion; : The total estimated delay value (vehicle-second) of the intersection corresponding to the j-th group conversion period of the one-stage conversion procedure during the division of the T-group time; : The total estimated delay value (veh-second) of the intersection corresponding to all conversion cycles of the two-stage conversion procedure during the division of the T-group time-time division; : The total estimated delay value (vehicle-second) of the intersection corresponding to the j-th group conversion period during the T-group time compensation period; e _T : if there is a group of cycles before reaching the right-point point of the T-group number After the execution is completed, the part that is said to be executed is a "segmentation period", and the initial division period length (seconds) e _T = t _T - ; g _{( T, Ø)} Ø , T: the effective green light length (seconds) of the phase Ø of the T group number time system; : The length (in seconds) of the phase Ø of the i-th conversion cycle during the compensation period of the T-th group time; : The length of the phase Ø (seconds) in the j-th conversion period of the i-segment conversion procedure during the division of the T-group time, h : the saturated vehicle spacing (seconds); L : the total loss time per cycle ( Seconds) L= n _T . t _L ; n _T : the total number of phases in the preset period C _T during the T-group time period; N _D : the total number of time-days in the day D; the PHF: the peak hour factor (default value 0.95) ; t _L : time lost in each phase (seconds); t _T : the end time of the T-group time, ie the conversion time point or the right boundary point (seconds) of the T-group time; t _{0 is} defined as The starting time point (seconds) of the first set of scheduled time plans with the wheel phase; t _{T -1} T: the start time (in seconds) of the T group number time system; : The end time (seconds) of the preset period of the Zth _T- th complete execution period during the _T- th group time system, wherein ; T _{T (0)} is defined as the start time (sec) made of the first group T semaphore; Z _T: The first group T semaphore system effective period, each sequence number to a preset cycles are performed the complete, the Z _T T th group The serial number of each preset period that is fully executed during the period when the time is valid, ,among them T: full-day chronograph order, T=1, 2,...., N _D ;( v / c ): preset saturation at the intersection (default value 0.95); V _T : group T time system During the period, the total critical flow of the intersection (vehicles/hour); V _{( T, Ø)} : the critical flow rate (vehicle/hour) corresponding to the phase Ø of the preset period C _T during the period of the T-group time; : Group T number, time period, and conversion period Corresponding intersection total critical flow (vehicle / hour); : Group T number, time period, and conversion period The critical flow rate (vehicle/hour) corresponding to the phase Ø; , : The T system is the time conversion period (seconds) before the right boundary point; X: the preset intersection saturation ( v / c ) (default value is 0.95); Ø: time phase Ø, Ø = 1, ..., n _T .

Please refer to FIG. 2, which is a flow chart of the gradual phase method during the conversion of the chronograph system of the present invention. When a target object passes through a road junction, the steps are as follows:

Step S01: Compare the relationship of the path with the slogan Chi C _T C _{T + 1'd,} the default system wherein C _T is a front semaphore when the length of each cycle, C _{T + 1'd} are made to the length of the predetermined period when the semaphore, when C Step T02 is performed when _T < C _{T +1} , if C _T When C _{T +1} , step S08 is performed;

Step S02: generating a first time conversion period before the right boundary point of the T group number = C _T + e _T , where e _T is the right boundary point when the T group number is reached. If a set of cycles has not been executed, the part that is said to be executed is a division period;

Step S03: Compare Relationship with C _{T +1} , if C _{T +1} , step S04 is performed, if > C _{T +1} , step S05;

Step S04: Converting the T-stage number of the right-point point of the T-group time to the t _T - , the conversion period length during this conversion is = Then, to step S05, where t _T is the end time of the T- th group time, that is, the conversion time point or the right boundary point of the T- th group time system, The first set of one-stage conversion period during the division of the T-group time;

Step S05: Order = + C _T and compare Relationship with C _{T +1} , if C _{T +1} , step S06 is performed, if > C _{T +1} , performing step S07, wherein For the second-time conversion period;

Step S06: Converting the T-segment time of the T-group number to the right boundary point to t _T - , the conversion period length during this conversion is = Go to step S14, where The second group of one-stage conversion period during the division of the T-group time;

Step S07: generating Period versus (= - Relationship, this order is satisfied The T-group number is the two-stage conversion point sequence pair before the right boundary point ( t _T - , t _T - + ),among them The first group of two-stage conversion period during the division of the T-group number of the two-stage conversion cycle, After the second group two-stage conversion period during the division of the T-group time, step S14 is performed;

Step S08: generating the first time conversion period before the right boundary point of the T group number = C _T + e _T ;

Step S09: Compare Relationship with C _{T +1} , if > C _{T +1} , execute step S10, if C _{T +1} , performing step S11;

Step S10: Converting the T-stage number of the right-point point of the T-group time to the t _T - , the conversion period length during this conversion is = Afterwards, to step S11;

Step S11: Order = + C _T and compare Relationship with C _{T +1} , if 2 C _{T +1} , step S12 is performed, if >2 C _{T +1} , performing step S13;

Step S12: Converting the T-stage of the T-group number to the right-point point of the right-time point to t _T - , the conversion period length during this conversion is = Afterwards, to step S14;

Step S13: generating Period versus (= - Relationship, this order is satisfied The T-group number is the two-stage conversion point sequence pair before the right boundary point ( t _T - , t _T - + ), performing step S14;

Step S14: calculating the period of the T-th group time-time conversion, and each conversion period Corresponding phase length , (i=1, 2, j=1, 2), where The j-th group i-segment conversion period during the division of the T-group time, During the division of the group T time division, the length of the phase Ø (seconds), g _{( T, Ø)} in the i-th group conversion cycle of the i-segment conversion program _, is the T-group time, the phase Ø Preset length (seconds), When there is no such object at the intersection, the total critical flow in the T-zone number of the intersection is: , where V _T is the total critical flow of the intersection during the T-group time, h is the saturation target distance, n _T is the total phase of the T-group time period, the preset period C _T , t _L For each phase loss time (seconds), PHF is the peak hour factor, ( v / c ) is the preset intersection saturation, so With L= n _T . t _L , where F _V is the peak service flow in the T group number of the intersection, and L is the total loss time (seconds) per cycle. For the T group number, the time period, and the conversion cycle Corresponding intersection total flow rate, then the intersection is in the T group number time system, and the conversion period The corresponding total critical flow is: , wherein the intersection is in the T group number time system, and the conversion cycle is aligned ( , The corresponding total critical flow is: The intersection is in the No. T group time system, and the critical flow rate V _{( T, Ø)} of the phase Ø is: The intersection is in the T group number time system, and the conversion cycle Critical phase corresponding to the critical phase for: The intersection is in the T group number time system, and the conversion cycle is aligned ( , The critical flow corresponding to the phase Ø is:

Step S15: Estimating the average fleet length of each time phase Ø of the left boundary point in the T+1 group number time, and when the target object is in the case of C _T < C _{T +1} , making the T+1 group number time system During the compensation period, the estimated value of the target at the beginning of each phase Ø of the i-th conversion cycle is ,then

Step S16: establishing a conversion period and a length of each phase during the compensation period, when the intersection is in the T+1 group time compensation period, the flow rate level V _{( T +1, Ø)} of each phase Ø is: During the compensation period of the T+1 group, the length of the phase Ø of the i-th conversion cycle for: Solve nT+1 group simultaneous, get The intersection of the intersection is in the T+1 group time compensation period, the length of the i-th conversion cycle for: As shown in Fig. 3, it is an exemplary conversion process of the lane A50 which is progressively converted from the short cycle length C = 80 seconds of the original system to the lane A50 of the new period with a longer period length C = 105 seconds. As shown in Fig. 4, it is an exemplary conversion process of the lane A70 which is progressively converted from the long-period length C=80 second of the original time system to the shorter period length C=45 seconds of the new time system.

Step S17: Estimating the total delay performance of the intersection of the first-stage and two-stage conversion periods during the T-group time-to-time conversion adjustment period, which is divided into:

Step S18: Establish a T-group number time conversion table, as shown in the following table:

Step S19: establishing a conversion decision during the conversion of the T group number time; if C _T < C _{T +1} , then to a first decision mode, otherwise to a second decision mode;

Step S20: Performing a T-th group time system to convert the first decision mode or the second decision mode;

Step S21: Examine whether the T+1 group number time system conversion design is executed, and if so, let T=T+1 go to step S01; if not, end the process, in the above process, the target object is a pedestrian or a vehicle.

The first decision mode, the steps are as follows: A. If C _{T +1} and C _{T +1} , the alternative conversion combination is: one-segment split 1 + i segment compensation: time conversion point: , i=1, 2, average delay for One-stage split 2+i segment compensation: Time conversion point: , i=1, 2, average delay for Conversion decision: take with Min { , } corresponding conversion combination; B. If C _{T +1} and > C _{T +1} , the alternative conversion combination is: one-segment split 1+i segment compensation: time conversion point: , i=1, 2 average delay for Two-stage split 2+i segment compensation: time conversion point: , i=1, 2, average delay for Conversion decision: take Corresponding conversion combination; C. > C _{T +1} and C _{T +1} : Take a segmentation 2+i segment compensation: time conversion point: , i=1, 2 average delay for Conversion decision: take Corresponding to a segmentation segmentation 2+i segment compensation; and D. > C _{T +1} and > C _{T +1} : The second-stage split j+i segment compensation: time conversion point: , i=1, 2, average delay for Conversion decision: take Corresponding conversion combination.

The second decision mode, the steps are as follows: E. C _{T +1} and 2( C _{T +1} ): The segmentation 2+i segment compensation is adopted: the time conversion point: , i=1, 2, average delay for Conversion decision: take Corresponding to one segment segmentation 2+i segment compensation; F. C _{T +1} and >2( C _{T +1} ): The second-stage segmentation j+i segment compensation is adopted: time conversion point: , i=1, 2, average delay for Conversion decision: take with Min { } corresponding conversion combination; G. If > C _{T +1} and 2 ( C _{T +1} ), then the alternative conversion combination is: one-segment split 1+i segment compensation: time conversion point: , i=1, 2 average delay for One-stage split 2+i segment compensation: time conversion point: , i=1, 2, average delay for Conversion decision: take with Min { , } corresponding conversion combination; and H. > C _{T +1} and >2( C _{T +1} ): Segmentation 1+i segment compensation: Time conversion point: , i=1, 2 average delay for Two-stage split j+i segment compensation: time conversion point: , i=1, 2, average delay for Conversion decision: take Corresponding conversion combination.

The gradual phase method during the conversion of the time system of the present invention has the following advantages when compared with other conventional technologies:

1. The gradual phase method during the conversion of the chronograph system of the present invention can eliminate the current implementation of the chronological conversion in a smooth interpolation manner, thereby ignoring the change in operational performance between different traffic flows before and after the conversion of the time system, especially for Traffic impact caused by low flow into high flow.

2. The gradual phase method during the conversion of the chronograph system of the present invention can solve the problem of the number of phases and the phase sequence of different time before and after the conversion of the time system, and provide a set of numbers. A good adjustment mechanism for the lamp phase conversion decision with the lowest operating cost before and after the Shishi system conversion point.

The detailed description of the present invention is intended to be illustrative of a preferred embodiment of the invention, and is not intended to limit the scope of the invention. The patent scope of this case.

To sum up, this case is not only innovative in terms of technical thinking, but also has many of the above-mentioned functions that are not in the traditional methods of the past. It has fully complied with the statutory invention patent requirements of novelty and progressiveness, and applied for it according to law. Approved this invention patent application, to encourage Ming, to the sense of virtue.

Claims (4)

A gradual phase method during the conversion of the chronograph system, when a target object passes through a road intersection, the steps are as follows: Step S01: Compare the relationship between C _T and C _{T +1} of the intersection number, wherein C _T is the front number The time period is preset by the time system, and the C _{T +1} is the preset period length of the post time system. When C _T < C _{T +1} , step S02 is performed, if C _T When C _{T +1} , step S08 is performed, where T is a group order of the time _stamp system and is a positive integer greater than 1; step S02: generating a first time conversion period before the right boundary point of the T group number time system = C _T + e _T , where e _T is the right boundary point when the T group number is reached. If a group of cycles has not been executed, the part that is executed is called a segmentation period; Step S03: Compare Relationship with C _{T +1} , if , executing step S04, if > C _{T +1} , step S05 is performed; step S04: the conversion point of the segment time system before the right boundary point of the T group number time is t _T - , the conversion period length during this conversion is Then, to step S05, where t _T is the end time of the T group number time system, that is, the conversion time point or the right boundary point of the T group number time system, The first set of one-stage conversion cycle during the division of the T-group time division; Step S05: Order And compare Relationship with C _{T +1} , if Go to step S06, if > C _{T +1} , performing step S07, wherein It is a second-time conversion period; step S06: converting the one-stage time conversion point before the right boundary point of the T-group time to t _T - , the conversion period length during this conversion is Go to step S14, where The second group of one-stage conversion period during the division of the group T time division; step S07: generation Period versus Relationship, this order is satisfied The T-group number is the two-stage conversion point order before the right boundary point ( t _T - , t _T - ),among them The first group of two-stage conversion period during the division of the T-group number of the two-stage conversion cycle, After the second group two-stage conversion period of the T-group time division period, step S14 is performed; step S08: generating the first-time conversion period before the right-point point of the T-group number-time clock system = C _T + e _T ; Step S09: Compare Relationship with C _{T +1} , if > C _{T +1} , execute step S10, if C _{T +1} , step S11 is performed; step S10: converting the segment time system of the T group number to the right boundary point to t _T - , the conversion period length during this conversion is Thereafter, to step S11; step S11: order And compare Relationship with C _{T +1} , if Go to step S12, if >2 C _{T +1} , step S13 is performed; step S12: converting the one-stage time conversion point before the right boundary point of the T group number time to t _T - , the conversion period length during this conversion is Thereafter, to step S14; step S13: generating Period versus Relationship, this order is satisfied The T-group number is the two-stage conversion point order before the right boundary point ( t _T - , t _T - Step S14: Step S14: calculating the period of the T-th group time conversion period, and each conversion period Corresponding phase length , (i=1, 2, j=1, 2), where The j-th group i-segment conversion period during the division of the T-group time, During the division of the group T time division, the length of the phase Ø (seconds), g _{( T, Ø)} in the i-th group conversion cycle of the i-segment conversion program _, is the T-group time, the phase Ø Preset length (seconds), When there is no such object at the intersection, the total critical flow rate in the T group of the intersection is , where V _T is the total critical flow of the intersection during the T-group time, h is the saturation target distance, n _T is the total phase of the T-group time period, the preset period C _T , t _L For each phase loss time (seconds), PHF is the peak hour factor, ( v / c ) is the preset intersection saturation, so With L= n _T . t _L , where F _V is the peak service flow in the T group number of the intersection, and L is the total loss time (seconds) per cycle. For the T group number, the time period, and the conversion cycle Corresponding intersection total flow rate, then the intersection is in the T group number time system, and the conversion period The corresponding total critical flow is , wherein the intersection is in the T group number time system, and the conversion cycle is aligned ( , The corresponding total critical flow rate is The intersection is in the No. T group time system, and the critical flow rate V _{( T, Ø)} of the phase Ø is The intersection is in the T group number time system, and the conversion cycle Critical phase corresponding to the critical phase for: The intersection is in the T group number time system, and the conversion cycle is aligned ( , The critical flow corresponding to the phase Ø is Step S15: Estimating the average fleet length of each time phase Ø of the left boundary point in the T+1 group number time, and when the target object is in the case of C _T < C _{T +1} , making the T+1 group number time system During the compensation period, the estimated value of the target at the beginning of each phase Ø of the i-th conversion cycle is ,then , i=1 or, ,i=0 or i 2; Step S16: Establish the conversion period and the length of each phase in the compensation period, when the intersection is in the T+1 group time compensation period, the flow rate level V _{( T +1 , Ø)} of each phase Ø is During the compensation period of the T+1 group, the length of the phase Ø of the i-th conversion cycle for Solve nT+1 group simultaneous, get The intersection of the intersection is in the T+1 group time compensation period, the length of the i-th conversion cycle Step S17: Estimating the total delay performance of the intersection of the first-stage and two-stage conversion periods during the T-group time-to-time conversion adjustment period, which is divided into: Step S18: establishing a T-group number time conversion table; step S19: establishing a conversion decision during the T-group time-to-time conversion; if C _T < C _{T +1} , then to a first decision mode, otherwise to a first a second decision mode, step S20: performing a T-th group time system conversion to the first decision mode or the second decision mode; and step S21: checking whether the T+1 group number time-time conversion design is performed, and if so, letting T =T+1 to step S01; if not, the process ends. A gradual phase method during the conversion of the time system as described in claim 1 of the patent application, wherein the subject matter is a pedestrian or a vehicle. For example, the gradual phase method during the conversion of the time system described in the first paragraph of the patent application scope, wherein the first decision mode, the steps are as follows: I. And , the alternative conversion combination is: one-segment split 1 + i segment compensation: time conversion point: , i=1, 2, average delay for One-stage split 2+i segment compensation: time conversion point: , i=1, 2, average delay for Conversion decision: take Corresponding conversion combination; J. Ruo And > C _{T +1} , the alternative conversion combination is: one-segment split 1+i segment compensation: time conversion point: , i=1, 2 average delay for Two-stage split 2+i segment compensation: time conversion point: , i=1, 2, average delay for Conversion decision: take Corresponding conversion combination; K. > C _{T +1} and Then take a segmentation 2+i segment compensation: time conversion point: , i=1, 2 average delay for Conversion decision: take Corresponding to a segmental segmentation 2+i segment compensation; and L. > C _{T +1} and > C _{T +1} : The second-stage split j+i segment compensation: time conversion point: , i=1, 2, average delay for Conversion decision: take Corresponding conversion combination. For example, the gradual phase method during the conversion of the time system described in the first paragraph of the patent application scope, wherein the second decision mode, the steps are as follows: M. And Then take a segmentation 2+i segment compensation: time conversion point: , i=1, 2, average delay for Conversion decision: take Corresponding to one segment segmentation 2+i segment compensation; N. And >2( C _{T +1} ): The second-stage segmentation j+i segment compensation is adopted: time conversion point: , i=1, 2, average delay for Conversion decision: take Corresponding conversion combination; O. > C _{T +1} and , the alternative conversion combination is: one-segment split 1 + i segment compensation: time conversion point: , i=1, 2 average delay for One-stage split 2+i segment compensation: time conversion point: , i=1, 2, average delay for Conversion decision: take Corresponding conversion combination; and P. > C _{T +1} and >2( C _{T +1} ): Segmentation 1+i segment compensation: time conversion point: , i=1, 2 average delay for Two-stage split j+i segment compensation: time conversion point: , i=1, 2, average delay for Conversion decision: take Corresponding conversion combination.