CN109740273A - A kind of curved area to be transferred in a signalized crossing left side and complete red time cooperated computing and method for drafting - Google Patents
A kind of curved area to be transferred in a signalized crossing left side and complete red time cooperated computing and method for drafting Download PDFInfo
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- CN109740273A CN109740273A CN201910020345.6A CN201910020345A CN109740273A CN 109740273 A CN109740273 A CN 109740273A CN 201910020345 A CN201910020345 A CN 201910020345A CN 109740273 A CN109740273 A CN 109740273A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a kind of left curved areas to be transferred of signalized crossing, and the calculating being arranged and method for drafting are cooperateed with complete red time, wherein the turning line style of left curved area to be transferred uses circular curve；Wherein, left curved area to be transferred highest distance position is not across the direction of traffic extended line to middle line of turning left；Wherein, turning radius R and complete red time calculating calculate through the above scheme, on the one hand the curved area to be transferred in a left side being arranged by this method and complete red time to turn left the conflict area area between the straight trip of a upper phase to reduce, definitely, complete red time is reduced collision position；On the other hand reduce left-hand rotation and enter vehicle at a distance from straight traffic, the judgement that driver crosses conflict point to straight traffic is more accurate, on the one hand this method has standardized left-turning traffic track, on the other hand to greatest extent on ensured the traffic safety of left-hand rotation, through vehicles.
Description
Technical field
The present invention relates to signalized intersections management and control technology field, specifically a kind of signalized crossing it is left it is curved to
Turn calculating and method for drafting that area cooperates with setting with complete red time.
Background technique
Left curved area to be transferred is exactly that one piece of region is marked before intersection left-hand rotation entrance driveway as Accreditation Waiting Area, when this is green to keeping straight on
When lamp opens bright, party's entrance driveway of turning left can run to area to be transferred stop line, until left-hand rotation lamp opens and bright starts to turn left.Contain a left side
The intersection traffic signal of curved area to be transferred is let pass left-hand rotation again in the straight trip that should first let pass of the entrance driveway containing left curved area to be transferred.In signal
The original intention that left curved area to be transferred is arranged in intersection is so that part left turning vehicle enters intersection in advance, in left-hand rotation green time
Increase left turning vehicle by number, the road for implementing " left curved area to be transferred " is usually the road of unidirectional three lanes and ratings above.
" road signs and graticule " GB5768-1999 standard has increased left curved area to be transferred newly.
" road signs and markings " GB5768-2009 is marked given the Length x Width color of left curved area to be transferred and position
Standard, and propose at the crossing for warding off left-hand bend dedicated Lanes, the settable curved area to be transferred line in a left side, and determine that control mode signal is answered
First let pass through vehicles, rear clearance area to be transferred vehicle, but do not provide the transportation condition of concrete application, signal control condition and
Apply drawing method.
The theory that the U.S. is mostly used Road-diet builds road, and urban road is most of based on dual three-lane carriageway, intersection
It is smaller, without the setting of the curved area to be transferred in a left side, thus the not research to left curved area to be transferred left turn lane actual capacity substantially.
It is at present the correlative study that Chinese scholar has carried out left curved area to be transferred from different angles.Multitude's winter, equality was with regard to left-hand rotation special lane
Parking line position, which is discussed, establishes intersection left-hand rotation stop line position model, the optimum bit of available left-hand rotation stop line
It sets.Sheep encourages etc. that researches show that left curved areas to be transferred will significantly improve the dedicated entrance driveway traffic capacity, reduces delay.Ancestor two
Triumphant equal researchs obtain in the case where signal timing dial is constant, and the traffic capacity of left turn lane behind area to be transferred is arranged with stopping area to be transferred
It puts the increase of vehicle and increases, reduced with the increase of vehicle loss time difference.Sun Bing is equal clearly to be mentioned according to traffic flow wave theory
When left turning vehicle overflows left changing lane, the left curved area to be transferred of setting can alleviate the spilling of left-hand rotation vehicle out, beg for from the angle of current demand
The wagon flow condition of the left curved area to be transferred of setting is discussed.The old also new equal left turn lane that the curved area to be transferred containing a left side is established based on survey data
Traffic capacity calculation formula, and the intersection research just investigated thinks that the left curved area to be transferred of setting can improve its left turn lane and pass through
The 10%-20% of ability.Most domestic scholar is that just the relationship of left curved area to be transferred and the traffic capacity discusses, and it is fresh from
It is studied in terms of how setting should being cooperateed with signal control left curved area to be transferred.
Left curved area to be transferred is set and the green light time interval in timing parameter is closely related.When green light time interval has amber light
Between and complete red time composition.The yellow time in " road traffic and road sign, signal are reached an agreement on " is corrected by the United Nations in 1974
Will send out a warning for amber light expression, vehicle should stop, unless when amber light is just bright already close to stop line, can not safety arrestment
Vehicle can output stop line.The length of yellow time should ensure that these open the bright moment in amber light can not be normally before stop line
The vehicle of secure parking can pass through stop line during amber light.
It can be seen that yellow time is unrelated with the setting of left curved area to be transferred.Current domestic ununified setting complete red time
Method, mostly with reference to external setting.External complete red time is divided into two kinds, and a kind of maximum safety margins of consideration, the i.e. tailstock leaves completely
Next phase vehicle is allowed to be driven out to stop line, a kind of consideration traffic efficiency highest behind intersection, i.e., the previous phase tailstock crosses conflict
Point allows next phase headstock to reach conflict point, and the setting of best complete red time is not generate easy conflict situation and venture passes through
State is foundation.The U.S. is the representative country of the first, and Germany is second.China's volume of traffic is huge, intersection it is complete red when
Between setting length have deep effect to efficiency, therefore should use for reference Germany method.
Sc: empty distance；Si: enter distance；Lc: Vehicle length is emptied, vehicle should be allowed to calculate with longest.
Regulation is worked asWhen, Ra0 is taken, that is, defines intersection and enters distance and empty the relationship of distance, simultaneously
Regulation left-hand rotation must avoid straight trip.But it for the large-scale intersection in China, if there is left-hand rotation and straight trip while can reside in
Situation inside intersection, once there is through vehicles cutout, left-hand rotation vehicle often accelerates using through vehicles also not
Once the time for reaching conflict point passes through by force, or carries out the distance that conflicts that minor-circle turn extends through vehicles and left turning vehicle
It is forced through, on the one hand brings very big hidden danger to traffic safety, on the other hand make the through vehicles intersection into intersection
Interior waiting.
Summary of the invention
The object of the present invention is to provide a kind of left curved areas to be transferred of signalized crossing, and the meter being arranged is cooperateed with complete red time
Calculation and method for drafting.
To achieve the purpose of the present invention, the present invention provides a kind of left curved area to be transferred of signalized crossing and complete red times
Calculating and the method for drafting of setting are cooperateed with,
Wherein, turn line style, in order to which intersection meets the requirement of left-hand rotation radius, at the same be driver's driving experience more
Naturally, the setting of left curved area to be transferred uses circular curve；
Wherein, left curved area to be transferred highest distance position, left curved area to be transferred cannot farthest cross the direction of traffic to middle line of turning left
Extended line；
Wherein, turning radius R, China " Code for planning design of transport on urban road " GB50220-95 provide general through street
Not less than 40 meters, 30-40 meters of major trunk roads, 20-24 meters of subsidiary road, 14-18 meters of branch；Major trunk roads be averaged turning radius be 20-30,
Subsidiary road 15-20, non-main and secondary road 10-20.Turn left to enter the center line of road and stop line intersection point in lane by this direction most inner side
(" road signs and graticule " GB5768-1999 provides that carriageway width is greater than 30m, and is equipped with median strip road
On, safety island should be set on the crossing at median strip.From can be with if left hand has pedestrian island
Count the position for starting turning) line, starting and terminal point point are connected to form with the starting point for intersecting direction most inner side exit ramp middle line
It is not set as O and D, middle line extending direction (vehicle traveling direction) vertical line, intersection point J1, the side on the left of O point are done with O and D point respectively
To the vertical line for being O-J1.If the length of O-J1 is greater than " Code for planning design of transport on urban road " GB50220-95 recommendation
(interpolation method determines corresponding turning radius on road width), then it is on the contrary then use using the length of O-J1 as turning radius
" Code for planning design of transport on urban road " GB50220-95 recommendation.Do the vertical line of O-J1, length of perpendicular to the left by O point
For the length of turning radius, intersection point O '.It is that circular curve is done with turning radius for half radial intersection direction in the center of circle with O '.⊙O'
Circular curve and the middle line of opposite left turn lane intersect at J2, J2 is the distalmost end of left curved area to be transferred middle line.
It is J5 with stop line intersection point on the inside of lane that we, which turn left, and the outside of left turn lane and the intersection point of stop line are J6.
It is respectively that circular curve, the extended line of circular curve and O '-J2 are done in half radial intersection direction with O '-J5, O '-J6 with O ' for the center of circle
J7, J8 are met at respectively, connects J7, J8 point, then J7-J8 is the stop line of left curved area to be transferred, that is, left curved area to be transferred has been determined
Precise length and position.
Wherein, complete red time calculates, if the intersection point of opposite most inner side Through Lane middle line and stop line is J3, from opposite direction
Straight trip direction of traffic vehicle is chosen in two points of most inner side Through Lane middle line intersection crosses first point that intersection encounters
For safest conflict point, it is denoted as J4.The length of J3-J4 is L3-4.The distance for reaching conflict point into vehicle is on circular curve
J2 is at a distance from J4, as L2-4.Distance of the left turning vehicle apart from about half lane of through vehicles at this time is more conducive to driving
The person of sailing judges whether through vehicles have passed through conflict point.
The method of Germany is to reach conflict point, L into vehicle when emptying the vehicle tailstock by conflict point3-4, L2-4Value is protected
As soon as staying a decimal, takes percentile to have number into one method, calculates complete red time are as follows:
L2-4It is very short, thereforeVery little is neither perfectly safe method using the U.S. in order to safer, does not also use moral
The method that state's efficiency, safety consider simultaneously, it is considered herein that being driven out to stopping into vehicle when emptying the vehicle tailstock by conflict point
Line, the widened amount of complete red time is very small at this time, but intersection realizes and is perfectly safe.RaCalculating retain integer using only
Tenths is wanted to have number into one method.
Compared with prior art, beneficial effects of the present invention are the left curved area to be transferred of this method setting and complete red time, a side
Face to turn left the conflict area area between the straight trip of a upper phase to reduce, and definitely, complete red time is reduced collision position.
On the other hand reduce left-hand rotation and enter vehicle at a distance from straight traffic, the judgement that driver crosses conflict point to straight traffic is more quasi-
Really, on the one hand this method has standardized left-turning traffic track, on the other hand to greatest extent on ensured the driving of left-hand rotation, through vehicles
Safety.
Detailed description of the invention
Fig. 1 show the structural schematic diagram of the embodiment of the present application.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that described herein
Specific embodiment be only used to explain the present invention, be not intended to limit the present invention.
It should be noted that " connection " described herein and the word for expressing " connection ", as " being connected ",
" connected " etc. had both included that a certain component is directly connected to another component, and had also included that a certain component passes through other component and another portion
Part is connected.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also be intended to include plural form, additionally, it should be understood that, when in the present specification using belong to "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, component or module, component and/or their combination.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so that presently filed embodiment described herein for example can be in addition to herein
Sequence other than those of diagram or description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that
Be to cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units not
Those of be necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for these processes, side
The intrinsic other step or units of method, product or equipment.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a component shown in the figure or module or feature and other
The spatial relation of component or module or feature.It should be understood that spatially relative term be intended to comprising in addition to component or
Different direction in use or operation except orientation of person's module described in figure.For example, if component in attached drawing
Perhaps module is squeezed, be described as " above other component or module or construction " or " in other component or module or
On construction " component or module after will be positioned as " below other component or module or construction " or " at other
Under component or module or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The component or module can also be positioned with other different modes (to be rotated by 90 ° or in other
Orientation), and respective explanations are made to the opposite description in space used herein above.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.
The invention proposes a kind of left curved areas to be transferred of signalized crossing to cooperate with the calculating of setting with complete red time, draw
Method.Purpose is on the one hand to turn left to keep straight on a upper phase using the left curved area to be transferred of this method setting and complete red time
Between conflict area area reduce, collision position definitely, complete red time reduce.On the other hand reduce left-hand rotation and enter vehicle
At a distance from straight traffic, the judgement that driver crosses conflict point to straight traffic is more accurate, on the one hand this method has standardized a left side
Wheel paths of changing one's profession on the other hand to greatest extent on ensured the traffic safety of left-hand rotation, through vehicles.Because of calculation method and drew
Journey is inseparable, therefore the two is illustrated by the present invention together.
As shown in Figure 1, intersecting the embodiment of intersection with secondary distributor road with a main line for the application.
30 meters of its main line Road width, canalization an are as follows: left turn lane, two Through Lanes, a right-turn lane.It is secondary dry
22 meters of road Road width, canalization an are as follows: left turn lane, a Through Lane, a right-turn lane.Present invention assumes that lane row
The all standard minibus L of vehiclec≤ 6m, emptying speed is 40km/h, to the east of entrance driveway turn left for do to row area, calculate
The mutually complete red time of collaboration.
Left turn lane middle line is connected to form with stop line intersection location with the starting point for intersecting direction most inner side exit ramp middle line
One line, starting and terminal point are set to O and D, do middle line extending direction (vehicle traveling direction) vertical line, intersection point respectively with O and D point
For J1.
The vertical line of O-J1 is done in O point left direction.The length of O-J1 is 17, " Code for planning design of transport on urban road "
GB50220-95 recommendation is 20, then length of perpendicular is 20, and another endpoint is O '.
It is that circular curve is done with turning radius for half radial intersection direction in the center of circle with O '.The circular curve of ⊙ O ' with to turning left
The middle line in lane intersects at J2, and J2 is the distalmost end of left curved area to be transferred middle line.
It is J5 with stop line intersection point on the inside of lane that we, which turn left, and the outside of left turn lane and the intersection point of stop line are J6.
It is respectively that circular curve, the extended line of circular curve and O '-J2 are done in half radial intersection direction with O '-J5, O '-J6 with O ' for the center of circle
J7, J8 are met at respectively, connects J7, J8 point, then J7-J8 is the stop line of left curved area to be transferred, and J5-J7 is the interior of left curved area to be transferred
Side edge line, J6-J8 are left curved area to be transferred outermost edges line.
If the intersection point of opposite most inner side Through Lane middle line and stop line is J3, from opposite most inner side Through Lane middle line
Choosing straight trip direction of traffic vehicle in two points of intersection and crossing first point that intersection encounters is safest conflict point, note
For J4.The length of J3-J4 is L3-4.The distance for reaching conflict point into vehicle is that J2 is at a distance from J4 on circular curve, as
L2-4.Then complete red time are as follows:
L is calculated3-4=12.7, Lc=6, vq=40, to obtain Ra=1.683 ≈ 2s.
The above is only a preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (1)
1. a kind of left curved area to be transferred of signalized crossing cooperates with the calculating of setting and method for drafting, feature to exist with complete red time
In,
Wherein, the turning line style of left curved area to be transferred uses circular curve；
Wherein, left curved area to be transferred highest distance position is not across the direction of traffic extended line to middle line of turning left；
Wherein, turning radius R meets following condition:
When turning left to enter center line of road and the stop line intersection point in lane by this direction most inner side and intersect direction most inner side exit ramp
The starting point of middle line is connected to form a line, and starting and terminal point is set to O and D, does middle line extending direction vertical line respectively with O and D point,
Intersection point is J1, does the vertical line of O-J1 in O point left direction；
If the length of O-J1 is greater than " Code for planning design of transport on urban road " GB50220-95 recommendation, using O-J1's
Length is on the contrary then use " Code for planning design of transport on urban road " GB50220-95 recommendation as turning radius；
Do the vertical line of O-J1 to the left by O point, length of perpendicular is the length of turning radius, and intersection point O ' is the center of circle to turn with O '
Curved radius is that circular curve is done in half radial intersection direction, and the circular curve of ⊙ O ' and the middle line of opposite direction left turn lane intersect at J2, J2
The distalmost end of as left curved area to be transferred middle line；
It is J5 with stop line intersection point on the inside of lane that we, which turn left, and the outside of left turn lane and the intersection point of stop line are J6, with O '
It is respectively that circular curve, the extended line difference of circular curve and O '-J2 are done in half radial intersection direction with O '-J5, O '-J6 for the center of circle
J7, J8 are met at, J7, J8 point are connected, then J7-J8 is the stop line of left curved area to be transferred, that is, the accurate of left curved area to be transferred has been determined
Length and position；
Wherein, complete red time calculates, and meets following condition:
If the intersection point of opposite most inner side Through Lane middle line and stop line is J3, intersect from opposite most inner side Through Lane middle line
Two points in choose straight trip direction of traffic vehicle to cross first point that intersection encounters be safest conflict point, be denoted as
The length of J4, J3-J4 are L3-4, the distance for reaching conflict point into vehicle is that J2 is at a distance from J4 on circular curve, as L2-4；
When emptying the vehicle tailstock by conflict point, stop line, R are driven out into vehicleaAs long as calculating retain integer use tenths
There is number into one method,
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| CN201910020345.6A CN109740273B (en) | 2019-01-09 | 2019-01-09 | Method for drawing left-turn waiting zone of signal control intersection and calculating full-red time cooperatively |
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| CN201910020345.6A CN109740273B (en) | 2019-01-09 | 2019-01-09 | Method for drawing left-turn waiting zone of signal control intersection and calculating full-red time cooperatively |
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| CN112376340A (en) * | 2020-12-03 | 2021-02-19 | 吉林大学 | Design method for left-turn intersection guide line and left-turn stop line |
| CN113299065A (en) * | 2021-05-21 | 2021-08-24 | 上海旷途科技有限公司 | Timing method and device for signal control of intersection green light interval time, computer equipment and storage medium |
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| CN113299065A (en) * | 2021-05-21 | 2021-08-24 | 上海旷途科技有限公司 | Timing method and device for signal control of intersection green light interval time, computer equipment and storage medium |
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