CN105575135A - Trunk line inter-bus station green wave design system of high density road network area - Google Patents
Trunk line inter-bus station green wave design system of high density road network area Download PDFInfo
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Abstract
The invention discloses a trunk line inter-bus station green wave design system of a high density road network area. By acquiring the trunk line road base information data, the mixed traffic historical operation data, the bus system historical operation data, and the bus system real-time operation data of the high density road network area, based on the intersection signal timing scheme designed by adopting the Webster signal timing method and the intersection signal phase difference adjusted according to the bus road section driving characteristics, the buses, which are not able to enjoy the green wave driving, can be selected by adopting the matching of the bus arriving time and the intersection green wave time, and all of the buses can pass the intersection group between the adjacent bus stations of the high density road network area without stopping by adjusting the parking time of the buses on the bus stations. Under the precondition of the small disturbance to the passing of the social vehicles, the operation efficiency of the buses can be increased in a maximized manner.
Description
Technical field
The present invention relates to technical field of traffic control, green wave design system between the main line bus station in particularly a kind of high density road area.
Background technology
Along with the fast development of urbanization process, urban road network construction is concentrated further with intensive, especially in the city that modernization level is higher, and its economically developed large-scale high density road of inner city ubiquity.High density road has the form of class " centipede ", and normally a city's main road axles serves as its " main body trunk ", and many orthogonal compositions of minor road its " brothers ", have the features such as crossing spacing is little, road section length is short, road mileage is large.
High density road regional economy industry is flourishing, the density of population is large, traffic loading weight, belongs to the important covering of urban public transport and coverage.For realizing resident trip mode by the fast transition of individual traffic to public transport, alleviate road traffic load, ensure that smooth traffic runs, improve public transit vehicle efficiency of operation, improving bus service level, is the most important thing of city traffic management department.But, crossing, high density road area spacing is less, road is laid intensive, due to factors such as traffic signal control, public transit vehicle stops and goes, there is great intersection parking delay, have a strong impact on its travel speed and operation punctuality rate, bring extreme difficulties to the raising of the lifting of bus service level and bus trip competitive power.Inefficient bus operation present situation causes more traveler to select Individual Traffic-Tools trip, more and more many motor vehicles sail high density road area into, and traffic congestion, traffic environment, traffic safety etc. seriously annoying the performance of high density road area commercial function.For breaking away from the vicious circle of this vicious cycle, for technical research and the enforcement of high density road area public transportation system enhancing efficiency, just becoming the top priority of traffic administration person.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide a kind of under the prerequisite current compared with microvariations public vehicles, green wave design system between the main line bus station of improving the efficiency of operation of public transit vehicle substantially.
For achieving the above object, present invention employs following technical scheme:
A green wave design system between the main line bus station in high density road area, comprises the steps:
(A) the arterial road basic information data in high density road area, mixed traffic history operation data, public transit system history operation data and public transit system realtime running data are gathered;
(B) the arterial road basic information data in the high density road area gathered according to step (A) and mixed traffic history operation data, application Robert Webster signal timing dial method, design intersection signal timing scheme;
(C) the public transit vehicle history operation data gathered in the intersection signal timing scheme designed according to step (B) and step (A), design intersection signal phase differential;
(D) according to the arterial road basic information data and the public transit system realtime running data that collect high density road area in step (A), the moment that bus sails out of the website moment and arrives first crossing, downstream is estimated;
(E) the intersection signal phase differential that the intersection signal timing scheme designed according to step (B), step (C) design and the bus that step (D) is estimated arrive the moment of first crossing, website downstream, judge whether bus can be enjoyed green ripple at intersection group and travel, if green ripple can be enjoyed to travel, then enter step (G), otherwise enter step (F);
(F) according to the result of calculation of step (B) ~ step (E), when meeting passenger getting on/off demand, adjustment bus is at the berthing time of website in real time, ensures that it can enjoy green ripple and travel between downstream intersection group;
(G) according to the data that step (A) collects, the realtime running data of high density road area public transit system are upgraded.
As the further optimization of such scheme, in described step (A), the arterial road basic information data in high density road area comprises crossing number n, road section length L between two adjacent sites
i(i=1,2 ..., distance d n), between website and crossing, first, its downstream; Mixed traffic history operation data comprises social traffic, public transport, bicycle and pedestrian in the historical traffic of crossing i and the flow direction; Public transit system history operation data comprises the maximum overall trip speed V of bus
maxwith minimum overall trip speed V
min, the Passenger arrival rate λ of bus station, the average pick-up time α of bus passenger and average time getting off β; Public transit system realtime running data comprise the departure interval h of bus, the real-time arrival time t of bus
arr.
Further, described step (B) comprises the steps:
(B1) signal timing dial is implemented to each crossing
According to social traffic, public transport, bicycle and pedestrian in the historical traffic of crossing i and the flow direction, application Robert Webster signal timing dial method, to the modelled signal timing scheme respectively of each crossing between the adjacent sites of high density road area;
(B2) signal period of unified crossing mouth group
N crossing between definition adjacent sites is an intersection group, choose the maximum crossing of traffic loading in intersection group for controlling crossing, with the common signal cycle T that the signal period of this crossing is this intersection group, the signal period adjusting other crossing is identical with the common signal cycle.
Further, described step (C) comprises the steps:
(C1) running time of bus on section is:
t(i)＝3.6L
i/v,i＝1,2,…,n；
Wherein, v is bus overall trip speed and V
min≤ v≤V
max, desirable
(C2) phase differential of Adjacent Intersections is:
u(i)＝t(i),i＝2,3,…,n；
(C3) bus scheduling of system is identical with the initial time reference point of integrative design intersection, and is set to 0, and the public transport green ripple period of each signal period is:
[t
start+m*T,t
end+m*T],m＝1,2,3,4,…；
Wherein, t
start+ m*T is the green ripple initial time of public transport of m signal period, t
end+ m*T is the green ripple end time of public transport of m signal period.
Further, described step (D) comprises the steps:
(D1) bus at the berthing time of website is:
t
dwell＝MAX(α*λh,β*ξ)；
Wherein, ξ adds up by the historical summary of upper a week this bus of obtaining to get off ridership at the average per car of this website;
(D2) bus sails out of the moment of bus station and is:
t
dpt＝t
arr+t
dwell；
(D3) moment of bus arrival first crossing, website downstream is:
t
int＝t
dpt+3.6d/v+v/7.2a；
Wherein, a is the operation acceleration of public transit vehicle.
Further, in described step (E), the condition that bus can travel at the green ripple of intersection group is t
int∈ [t
start+ m*T, t
end+ m*T]; If the moment that bus arrives first crossing, website downstream meets green ripple driving requirements, then directly enter step (G); If the moment that bus arrives first crossing, downstream can not meet the requirement that the green ripple of bus crosses intersection group, then enter step (F).
Further, described step (F) comprises the steps:
(F1) when bus arrives first crossing, website downstream, Intersections is in m signal control cycle, and the position of bus due in residing within this signal period is:
p＝t
intmodT；
Wherein, mod represents complementation, t
intmodT is t
intremainder result after removing with T-phase;
(F2) p<t is worked as
starttime, bus is adjusted at the berthing time of website:
t'
dwell＝t
dwell+(t
start-p)；
(F3) P>t is worked as
endtime, bus is adjusted at the berthing time of website:
t'
dwell＝t
dwell+(p-t
start)+T。
Further, described step (G) comprises the realtime running data of Resurvey high density road area main line public transit vehicle, upgrades the input information of system.
Beneficial effect main manifestations of the present invention is: green wave design system between the main line bus station in a kind of high density road area of the present invention, by gathering the arterial road basic information data in high density road area, mixed traffic history operation data, public transit system history operation data and public transit system realtime running data, in application Robert Webster signal timing dial method design intersection signal timing scheme and the basis according to bus sections of road Character adjustment intersection signal phase differential, the bus can not enjoyed green ripple and travel is screened by the coupling of bus time of arrival and crossing green ripple period, and adjust its berthing time in bus station with realize all buses all can not to stop by high density road area adjacent sites between intersection group, the present invention is under the prerequisite current compared with microvariations public vehicles, the efficiency of operation of public transit vehicle can be improved substantially.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of one embodiment of the invention.
Fig. 2 is the road basis layout in one embodiment of the invention high density road area.
Fig. 3 is the signal time distributing conception figure of each crossing, one embodiment of the invention high density road area.
Embodiment
Between the main line bus station being illustrated in figure 1 a kind of high density road area, the process flow diagram of green wave design system, further illustrates below in conjunction with example.
(A) the arterial road basic information data in high density road area, mixed traffic history operation data, public transit system history operation data and public transit system realtime running data are gathered;
In this step, the arterial road basic information data in high density road area comprises crossing number n, road section length L between two adjacent sites
i(i=1,2 ..., distance d n), between website and crossing, first, its downstream; Mixed traffic history operation data comprises social traffic, public transport, bicycle and pedestrian in the historical traffic of crossing i and the flow direction; Public transit system history operation data comprises the maximum overall trip speed V of bus
maxwith minimum overall trip speed V
min, the Passenger arrival rate λ of bus station, the average pick-up time α of bus passenger and average time getting off β; Public transit system realtime running data comprise the departure interval h of bus, the real-time arrival time t of bus
arr.
In this example, the arterial road basic information data in high density road area comprises crossing number n=4, road section length L between two adjacent sites
idistance d=180m between (i=1,2,3,4), website and crossing, first, its downstream; Mixed traffic history operation data comprises social traffic, public transport, bicycle and pedestrian in the historical traffic of crossing i (i=1,2,3,4) and the flow direction; Public transit system history operation data comprises the maximum overall trip speed V of bus
max=40km/h and minimum overall trip speed V
minpassenger arrival rate λ=2.5 people/the min of=20km/h, bus station, average pick-up time α=0.9s/ people of bus passenger and average time getting off β=0.6s/ people; Public transit system realtime running data comprise the departure interval h=8min of bus, the real-time arrival time t of bus
arras shown in table 1.
Table 1 bus arrives the time of bus station in real time
(B) the arterial road basic information data in the high density road area gathered according to step (A) and mixed traffic history operation data, application Robert Webster signal timing dial method, design intersection signal timing scheme, concrete grammar is:
(B1) signal timing dial is implemented to each crossing
According to social traffic, public transport, bicycle and pedestrian in the historical traffic of crossing i and the flow direction, application Robert Webster signal timing dial method, to the modelled signal timing scheme respectively of each crossing between the adjacent sites of high density road area;
(B2) signal period of unified crossing mouth group
N crossing between definition adjacent sites is an intersection group, choose the maximum crossing of traffic loading in intersection group for controlling crossing, with the common signal cycle T that the signal period of this crossing is this intersection group, the signal period adjusting other crossing is identical with the common signal cycle.
In this example, as shown in Figure 2, the signal time distributing conception figure of each crossing as shown in Figure 3 for the road basis layout in high density road area.
(C) the public transit vehicle history operation data gathered in the intersection signal timing scheme designed according to step (B) and step (A), design intersection signal phase differential, concrete grammar is:
(C1) running time of bus on section is:
t(i)＝3.6L
i/v,i＝1,2,…,n；
Wherein, v is bus overall trip speed and V
min≤ v≤V
max, desirable
(C2) phase differential of Adjacent Intersections is:
u(i)＝t(i),i＝2,3,…,n；
(C3) bus scheduling of system is identical with the initial time reference point of integrative design intersection, and is set to 0, and the public transport green ripple period of each signal period is:
[t
start+m*T,t
end+m*T],m＝1,2,3,4,…；
Wherein, t
start+ m*T is the green ripple initial time of public transport of m signal period, t
end+ m*T is the green ripple end time of public transport of m signal period.
In this example, the overall trip speed v=30km/h of bus, the running time of bus on section, crossing absolute phase difference, the public transport of each signal period green ripple period are as shown in table 2.
The running time of table 2 bus on section, crossing absolute phase difference and the public transport of each signal period green ripple period
(D) according to the arterial road basic information data and the public transit system realtime running data that collect high density road area in step (A), estimate the moment that bus sails out of the website moment and arrives first crossing, downstream, concrete grammar is:
(D1) bus at the berthing time of website is:
t
dwell＝MAX(α*λh,β*ξ)；
Wherein, ξ adds up by the historical summary of upper a week this bus of obtaining to get off ridership at the average per car of this website;
(D2) bus sails out of the moment of bus station and is:
t
dpt＝t
arr+t
dwell；
(D3) moment of bus arrival first crossing, website downstream is:
t
int＝t
dpt+3.6d/v+v/7.2a；
Wherein, a is the operation acceleration of public transit vehicle.
In this example, the operation acceleration of public transit vehicle is, bus the average per car of website get on the bus ridership, get off ridership and berthing time a=1m/s as shown in table 3, it is as shown in table 4 that bus arrives moment of first crossing, website downstream.
Table 3 bus to be got on the bus ridership, get off ridership and berthing time at the average per car of website
Table 4 bus arrives the moment of first crossing, website downstream
(E) the intersection signal phase differential that the intersection signal timing scheme designed according to step (B), step (C) design and the bus that step (D) is estimated arrive the moment of first crossing, website downstream, judge whether bus can enjoy green ripple traveling at intersection group; If green ripple can be enjoyed to travel, then enter step (G), otherwise enter step (F);
In this example, the matching result of bus and green ripple is as shown in table 5.
The matching result of table 5 bus and green ripple
(F) according to the result of calculation of step (B) ~ step (E), when meeting passenger getting on/off demand, real-time adjustment bus is at the berthing time of website, and ensure that it can enjoy green ripple and travel between downstream intersection group, concrete grammar is:
(F1) when bus arrives first crossing, website downstream, Intersections is in m signal control cycle, and the position of bus due in residing within this signal period is:
p＝t
intmodT；
Wherein, mod represents complementation, t
intmodT is t
intremainder result after removing with T-phase;
(F2) p<t is worked as
starttime, bus is adjusted at the berthing time of website:
t'
dwell＝t
dwell+(t
start-p)；
(F3) P>t is worked as
endtime, bus is adjusted at the berthing time of website:
t'
dwell＝t
dwell+(p-t
start)+T。
In this example, the berthing time adjustment result of bus stop website is as shown in table 6.
The berthing time adjustment result of table 6 bus stop website
(G) according to the data that step (A) collects, the realtime running data of high density road area public transit system are upgraded.In this example, the realtime running data of Resurvey high density road area main line public transit vehicle, upgrade the input information of system.According to above-mentioned steps, green wave design system between the main line bus station that can realize a kind of high density road area.
Should understand above-mentioned example to be only not used in for illustration of the present invention and to limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the scope requiring appended by the application to limit.
Claims (8)
1. a green wave design system between the main line bus station in high density road area, is characterized in that, comprise the steps:
(A) the arterial road basic information data in high density road area, mixed traffic history operation data, public transit system history operation data and public transit system realtime running data are gathered;
(B) the arterial road basic information data in the high density road area gathered according to step (A) and mixed traffic history operation data, application Robert Webster signal timing dial method, design intersection signal timing scheme;
(C) the public transit vehicle history operation data gathered in the intersection signal timing scheme designed according to step (B) and step (A), design intersection signal phase differential;
(D) according to the arterial road basic information data and the public transit system realtime running data that collect high density road area in step (A), the moment that bus sails out of the website moment and arrives first crossing, downstream is estimated;
(E) the intersection signal phase differential that the intersection signal timing scheme designed according to step (B), step (C) design and the bus that step (D) is estimated arrive the moment of first crossing, website downstream, judge whether bus can be enjoyed green ripple at intersection group and travel, if green ripple can be enjoyed to travel, then enter step (G), otherwise enter step (F);
(F) according to the result of calculation of step (B) ~ step (E), when meeting passenger getting on/off demand, adjustment bus is at the berthing time of website in real time, ensures that it can enjoy green ripple and travel between downstream intersection group;
(G) according to the data that step (A) collects, the realtime running data of high density road area public transit system are upgraded.
2. green wave design system between the main line bus station in high density road area according to claim 1, it is characterized in that: in described step (A), the arterial road basic information data in high density road area comprises crossing number n, road section length L between two adjacent sites
i(i=1,2 ..., distance d n), between website and crossing, first, its downstream; Mixed traffic history operation data comprises social traffic, public transport, bicycle and pedestrian in the historical traffic of crossing i and the flow direction; Public transit system history operation data comprises the maximum overall trip speed V of bus
maxwith minimum overall trip speed V
min, the Passenger arrival rate λ of bus station, the average pick-up time α of bus passenger and average time getting off β; Public transit system realtime running data comprise the departure interval h of bus, the real-time arrival time t of bus
arr.
3. green wave design system between the main line bus station in high density road area according to claim 1 and 2, it is characterized in that, described step (B) comprises the steps:
(B1) signal timing dial is implemented to each crossing
According to social traffic, public transport, bicycle and pedestrian in the historical traffic of crossing i and the flow direction, application Robert Webster signal timing dial method, to the modelled signal timing scheme respectively of each crossing between the adjacent sites of high density road area;
(B2) signal period of unified crossing mouth group
N crossing between definition adjacent sites is an intersection group, choose the maximum crossing of traffic loading in intersection group for controlling crossing, with the common signal cycle T that the signal period of this crossing is this intersection group, the signal period adjusting other crossing is identical with the common signal cycle.
4. green wave design system between the main line bus station in high density road area according to claim 1, it is characterized in that, described step (C) comprises the steps:
(C1) running time of bus on section is:
t(i)＝3.6L
i/v,i＝1,2,…,n；
Wherein, v is bus overall trip speed and V
min≤ v≤V
max, desirable
(C2) phase differential of Adjacent Intersections is:
u(i)＝t(i),i＝2,3,…,n；
(C3) bus scheduling of system is identical with the initial time reference point of integrative design intersection, and is set to 0, and the public transport green ripple period of each signal period is:
[t
start+m*T,t
end+m*T],m＝1,2,3,4,…；
Wherein, t
start+ m*T is the green ripple initial time of public transport of m signal period, t
end+ m*T is the green ripple end time of public transport of m signal period.
5. green wave design system between the main line bus station in the high density road area according to claim 1 or 2 or 4, is characterized in that, described step (D) comprises the steps:
(D1) bus at the berthing time of website is:
t
dwell＝MAX(α*λh,β*ξ)；
Wherein, ξ adds up by the historical summary of upper a week this bus of obtaining to get off ridership at the average per car of this website;
(D2) bus sails out of the moment of bus station and is:
t
dpt＝t
arr+t
dwell；
(D3) moment of bus arrival first crossing, website downstream is:
t
int＝t
dpt+3.6d/v+v/7.2a；
Wherein, a is the operation acceleration of public transit vehicle.
6. green wave design system between the main line bus station in the high density road area according to claim 1 or 2 or 4, is characterized in that: in described step (E), and the condition that bus can travel at the green ripple of intersection group is t
int∈ [t
start+ m*T, t
end+ m*T]; If the moment that bus arrives first crossing, website downstream meets green ripple driving requirements, then directly enter step (G); If the moment that bus arrives first crossing, downstream can not meet the requirement that the green ripple of bus crosses intersection group, then enter step (F).
7. green wave design system between the main line bus station in the high density road area according to claim 1 or 2 or 4, is characterized in that, described step (F) comprises the steps:
(F1) when bus arrives first crossing, website downstream, Intersections is in m signal control cycle, and the position of bus due in residing within this signal period is:
p＝t
intmodT；
Wherein, mod represents complementation, t
intmodT is t
intremainder result after removing with T-phase;
(F2) p<t is worked as
starttime, bus is adjusted at the berthing time of website:
t'
dwell＝t
dwell+(t
start-p)；
(F3) P>t is worked as
endtime, bus is adjusted at the berthing time of website:
t'
dwell＝t
dwell+(p-t
start)+T。
8. green wave design system between the main line bus station in high density road area according to claim 1 or 5, it is characterized in that, described step (G) comprises the realtime running data of Resurvey high density road area main line public transit vehicle, upgrades the input information of system.
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| CN105575135B (en) | 2018-03-16 |
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