CN103927885A - Arranging method of coil detectors of bus lane - Google Patents
Arranging method of coil detectors of bus lane Download PDFInfo
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- CN103927885A CN103927885A CN201410169835.XA CN201410169835A CN103927885A CN 103927885 A CN103927885 A CN 103927885A CN 201410169835 A CN201410169835 A CN 201410169835A CN 103927885 A CN103927885 A CN 103927885A
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Abstract
The invention discloses an arranging method of coil detectors of a bus lane. The lane is divided into different sections, the positions for arranging the bus check-in coil detectors and the bus check-out coil detectors are selected according to different practical conditions of all the sections, the certainty of the arranging positions of the coil detectors is improved, therefore, traffic lights are better controlled to change timely according to detection of buses by the detectors and the purpose that the busses are allowed to run first is realized. The arranging method is particularly applicable to urban main stems where bus lanes are arranged and bus signal priority control management is implemented, a scheme with theoretical foundations is provided for arrangement of coil detectors, promotion of the traffic management for allowing the buses to run first is reliably guaranteed and the arranging method is suitable for being widely popularized and used.
Description
Technical field
The present invention relates to traffic engineering field, the public transportation lane coil checker distribution method of particularly preferentially controlling for bus signals in a kind of urban traffic control.
Background technology
Along with public traffic in priority rises to national strategy, China each big city public transportation lane planning mileage increases day by day, but the preferential control technology of the bus signals adapting with it still need update perfect.And in practical engineering application, associated coil checker laying exists installation position and has larger stochastic problems, such laying mode cannot be according to detecting that bus reaches situation and formulates accurately the reasonably preferential control program of bus signals, and in work progress, cause guided bone and standardization disappearance, on management maintenance, be also not easy to unitized and standardized management.Therefore, randomness or the uncertain problem selected in order to overcome coil checker installation position, the present invention proposes a kind of for the preferential public transportation lane coil checker distribution method of controlling of bus signals.
Summary of the invention
The technical matters solving: for the deficiencies in the prior art, the present invention proposes a kind of distribution method of public transportation lane coil checker, and the coil checker that solves existing random laying cannot be according to detecting that bus reaches situation and formulates accurately reasonably that the preferential control program of bus signals, practical engineering application lack standard guidance and management maintenance is difficult to realize unitized and standardized technical matters.
Technical scheme: for solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of public transportation lane coil checker distribution method, be included in and on bus special lane, lay bus check-in detecting device and bus detects two kinds of coil checkers of detecting device, the moment the accumulative total that cross coil checker installation position for detection of public transit vehicle cross a number of bus, bus check-in detecting device detects detecting device with bus and is all connected with signal controller, signal phase state when signal controller Real-time Obtaining bus crosses coil checker, specifically comprises following step:
Step 1, according to traffic signals control node, the urban road that is provided with public transportation lane is carried out to section partition, described traffic signals control node comprises signalized crossing and signal controlling section;
The road of step 2, each section of marking off is divided into following two classes according to the quantity of bus stop, is respectively without the section of bus stop and has the section of bus stop;
The laying of step 3, coil checker: bus detects detecting device unification and is laid between stop line and zebra crossing; Bus check-in detecting device is as follows according to the different laying modes of section type:
Section without bus stop: be laid in craspedodrome import track and forbid changing Lane line and dotted line connecting position;
There is the section of bus stop: if this section is only for providing signal priority along the current public bus network of public transportation lane, the Loop detector layout that public transport checked in is forbidden changing Lane line and dotted line connecting position in craspedodrome import track; As long as if this section detects that public transit vehicle is by just providing signal priority, the Loop detector layout that bus checked in goes out station location in the downstream of the bus stop nearest apart from downstream traffic signals control node.
Bus in the present invention check-in detecting device arrives at a station or sets off for detection of public transit vehicle and arrives the situation of crossing, and the situation that bus detects detecting device and sails out of crossing for detection of public transit vehicle by stop line; Bus check-in detecting device and bus detect being combined with of detecting device, can detect the special import of the public transport track public transit vehicle queuing situation of obtaining.To downstream, adjacent bus detects the public transit vehicle number on section between detecting device to bus check-in detecting device, can be obtained by following formula:
N
ahead＝N
in-N
out-1
With regard to adjacent bus check-in detecting device and bus detect detecting device, from a certain moment, it is all 0 that bus check-in detecting device and the adjacent bus in downstream thereof detect detecting device initial value, establishes by the bus public transit vehicle number that detecting device and bus detect detecting device that checks in and is respectively N
inand N
out.In the time having public transit vehicle to cross bus check-in detecting device, N
inadd 1; In the time having public transit vehicle to cross bus to detect detecting device, N
outadd 1.Therefore, in the time having public transit vehicle to cross bus check-in detecting device, the public transit vehicle number that node is not yet controlled by letter in its front can be detected detecting device testing result is transferred to signal controller by check in detecting device and bus of bus, thus signal controller again in conjunction with self record to the data such as signal lamp phase state provide Data support for further implementing the preferential control strategy of bus signals.
The present invention provides a kind of method of definite coil checker installation position for practical engineering application, first according to traffic signals control node, urban road is divided into several dissimilar sections, simultaneously in conjunction with the controlling of bus priority scheme adopting on section, as long as only for providing signal priority along the current public bus network of public transportation lane or detecting that public transit vehicle is by just providing signal priority, then according to the situation of bus stop on each section, coil checker is set, practical, classification rationally and coil checker locality specific, especially be equipped with the preferential control and management of bus signals of the major urban arterial highway of public transportation lane, public transport system is in advance ensured.
Further, in the present invention, the coil that public transport detects detecting device is of a size of 1 meter or 2 meters at length direction, and this is that between stop line and zebra crossing, distance is generally 1 meter～3 meters in view of in China's traffic engineering design; And being of a size of 2 meters at Width, this is to be generally 2.5 meters of left and right in view of public transport body width in reality, and the lane width of public transportation lane is 3.5 meters of left and right, so select suitable coil size according to conventional coil dimension.
Beneficial effect: a kind of public transportation lane coil checker distribution method of the present invention, by road being divided into different sections, and bus check-in detecting device and bus be set detect the position of two kinds of coil checkers of detecting device according to the different choice of each section actual conditions, improve the determinacy of coil checker position, and then according to coil checker, the detection of bus is controlled in time better the change of traffic lights, realize bus object in advance; The major urban arterial highway that this method is specially adapted to be provided with public transportation lane and implements the preferential control and management of bus signals, for the layout of coil checker provides a scheme with theoretical foundation, at technical elements, solved existing method because of cannot Obtaining Accurate or prediction public transit vehicle stop the problem that can not Accurate Prediction public transit vehicle arrives on-board and off-board service times the stop line time; In engineering application aspect, there is the effect of standard guidance; Aspect management maintenance, be convenient to unitize, standardization, to promoting bus traffic administration in advance that reliable guarantee is provided, be suitable for large range promotion use.
Brief description of the drawings
Fig. 1 is of the present invention for the preferential public transportation lane coil checker installation position selection schematic diagram of bus signals;
Fig. 2 is the signalized crossing schematic diagram in traffic signals control node in the present invention;
Fig. 3 is the signal controlling section schematic diagram in traffic signals control node in the present invention;
Fig. 4 is the schematic diagram without the section of bus stop in the present invention;
Fig. 5 is the schematic diagram that has the section of a bus stop in the present invention;
Fig. 6 is the schematic diagram that has the section of two bus stops in the present invention;
Fig. 7 is the process flow diagram of the inventive method.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
A kind of public transportation lane coil checker distribution method, be included in and on bus special lane, lay bus check-in detecting device and bus detects two kinds of coil checkers of detecting device, the moment the accumulative total that cross coil checker installation position for detection of public transit vehicle cross a number of bus, bus check-in detecting device detects detecting device with bus and is all connected with signal controller, signal phase state when signal controller Real-time Obtaining bus crosses coil checker, specifically comprises following step:
Step 1, according to traffic signals control node, the urban road that is provided with public transportation lane is carried out to section partition, described traffic signals control node comprises signalized crossing and signal controlling section;
The road of step 2, each section of marking off is divided into following two classes according to the quantity of bus stop, is respectively without the section of bus stop and has the section of bus stop;
The laying of step 3, coil checker: bus detects detecting device unification and is laid between stop line and zebra crossing; Bus check-in detecting device is as follows according to the different laying modes of section type:
Section without bus stop: be laid in the public transport special straight mouthful track of advancing and forbid changing Lane line and dotted line connecting position;
There is the section of bus stop: Loop detector layout is forbidden changing Lane line and dotted line connecting position in the public transport special straight mouthful track of advancing if this section, only for providing signal priority along the current public bus network of public transportation lane, checks in bus; As long as if this section detects that public transit vehicle is by just providing signal priority, the Loop detector layout that bus checked in goes out station location in the downstream of the bus stop nearest apart from downstream traffic signals control node.
Bus check-in detecting device is according to having or not the situation of bus stop to carry out the differentiation of installation position in section.In general, be divided into two kinds of situations, the first situation, is that the downstream that is laid in the bus stop nearest apart from downstream traffic signals control node goes out station location; The second situation is to be laid in the public transport special straight mouthful track of advancing to forbid changing Lane line and dotted line connecting position.
Analyze respectively for the installation position of these two kinds of public transport check-in detecting devices below.
The first situation is for there being bus stop but does not strictly distinguish the section of public bus network, as long as this type of section detects that public transit vehicle is by just providing signal priority, is a kind of common section setting.
Be arranged on this locational scheme and itself do not consider that bus check-in detecting device detects the public transit vehicle arriving and whether continues to keep straight on along public transportation lane in the crossing in downstream, downstream craspedodrome signal phase green light opens the bright time and will depend on detects the public transit vehicle arriving and estimate the time of the crossing that arrives downstream, once arrived the time of estimating the crossing that arrives downstream, downstream craspedodrome signal phase green light will open bright.Such plan of establishment, may cause the situation that there is no situation that public transit vehicle arrives in craspedodrome direction and also taked the preferential control strategy of bus signals, but this brings negative effect can't to the vehicle pass-through of the crossing in downstream, because crossing all adopts four conventional phase signal control programs, according to the sequential loop of following four kinds of phase places: the two-way left/right rotation of the two-way craspedodrome → road intersection of the two-way left/right rotation → road intersection of the two-way craspedodrome → main road of main road direction direction, may also have right-hand rotation in the period closing to an end of wherein keeping straight on simultaneously; In this control program, open the morning of craspedodrome signal phase green light and also mean that this entrance driveway is turned right and left turn phase green light opens shifting to an earlier date of bright time, even if thereby public transit vehicle is to turn in the crossing in downstream, also can therefore reduce the parking waiting time that turns to public transit vehicle, realize public transport object in advance.
But also there is certain drawback in the distribution method of the first situation.One, on section, the difference of bus stop setting position will cause the distance between bus check-in detecting device and downstream intersection stop line also different.Distance is longer, and the uncertainty of predicting time of arrival also can increase thereupon, as there are some openings in trackside, such as refuelling station, school etc., in this case, discrepancy motor-driven or non power driven vehicle will inevitably bring the impact or the interference that are difficult to expection.Even the form of same bus stop can not exert an influence to time of arrival yet, as: than near-end beeline busstop, in far-end bay type multi-storied bus stop situation, the factor that affects public transport arrival downstream intersection stop line is more more.They are two years old, in the time that bus check-in detecting device is arranged on bus stop downstream position, the obstruction that after public transport departures, the public vehicles of right-hand rotation may be certain to the current generation of public transit vehicle, especially in the situation that right-hand rotation vehicle flowrate is larger, once right-hand rotation entrance driveway vehicle queue exceeds memory block length, queuing ties up on public transportation lane, public transit vehicle cannot be normally advances by sailing public transport special straight into that to arrive the predicted time possible error of crossing inlet road stop line in downstream very large in stomatodeum public transport, will cause so the crossing craspedodrome signal phase green light in downstream to open the bright time too early, in the time that bus arrives, very possible craspedodrome signal phase green light has become red light, thereby hinder bus in advance.Its three, left-hand rotation public transit vehicle, being sailed into by public transportation lane when special import track, can produce intersect with social wagon flow and conflict, therefore the time before its expectation arrival stop line has larger undulatory property.The installation position that will use so above said the second situation solves the problem that the distribution method of the first situation runs into.The bus Loop detector layout that checks in is forbidden to changing Lane line and dotted line connecting position in the public transport special straight mouthful track of advancing, and such laying section is only the public affairs current along public transportation lane
Intersection road provides signal priority.There are following two reasons:
One, it is relatively short that the bus check-in detecting device that is arranged in this position and the bus in downstream detect distance between detecting device, and bus check-in Loop detector layout position is also relatively fixing, has reduced the uncertainty of predicting time of arrival.Because known according to " urban highway traffic identifier marking arranges guide ", road speed is below 60km/h time, and crossing forbids that changing Lane line length is generally 30～50m." urban road intersection planning specification (GB50647-201) " 4.1.3 and 4.2.2 joint also specify urban road intersection entrance driveway length, when without volume of traffic data, branch road, secondary distributor road and trunk roads minimum length should not be less than respectively 30m, 40～50m and 50～70m.Further, according to factual survey, for the conventional public transit vehicle of 10～12 meters long, its queuing vehicle number is at most generally no more than 4.Therefore in such a manner bus check-in detecting device is laid, generally can not cause public transit vehicle to queue up to overflow bus check-in detecting device and bus to detect the problem of this segment distance between detecting device yet, can meet for existing in public transit vehicle queuing situation equally, the detection of queuing vehicle number, operation provides reference to be convenient to allow signal controller carry out green light prolongation or early to open etc.
Its two, forbid that owing to being arranged on the public transport special straight mouthful track of advancing changing Lane line and dotted line this position that joins can avoid the changing Lane section of conflict, thereby avoided the interference that turns to vehicle to bring to craspedodrome public transport, also solved the drawback of the first situation.
Certainly, self the deficiency that the distribution method of the second situation also exists, that is exactly to be only laid in public transport special straight to advance on mouthful track and the arrival situation that need turn to public transit vehicle cannot be detected.
The section that bus stop is not set for those, nature cannot use the method to set up of the first situation, can only select the distribution method of the second situation to arrange.
In sum, the essential distinction of the first situation and the second situation is: the first situation had not only been considered craspedodrome public transit vehicle but also considered to turn to the priority pass problem of public transit vehicle, but more because of uncertain factor, and cause public transit vehicle to estimate the uncertainty of time of the crossing that arrives downstream; The second situation can provide preferentially the public transit vehicle of keeping straight on public transportation lane, greatly reduces the uncertain factor in the first situation, but but cannot take into account the priority pass problem that turns to public transit vehicle.For solving in the second situation, can not detect the situation that turns to public transport to arrive, can forbid that in right-hand rotation import track and left-hand rotation import track changing Lane line and dotted line connecting position increase the laying of coil checker simultaneously.
Bus detects the laying of detecting device and just only has a kind of scheme, and that is unified being laid between stop line and zebra crossing exactly, B as shown in Figure 1.
Can avoid so the current impact for coil checker of road intersection public transit vehicle.Because current in China's traffic engineering design, according to " urban highway traffic identifier marking arranges guide ", stop line should be apart from 1～3 meter of zebra crossing, thereby, as long as select suitable coil dimension, the current of pedestrian and non motorized vehicle can not produce and disturb or negative effect the normal work of detecting device.In view of public transport body width is generally 2.5 meters of left and right, and the lane width of public transportation lane is 3.5 meters of left and right, for this reason, to select for the length of single channel vehicle detection and width be all that the coil of 2.0 meters or length are that 1.0 meters, width are the coil of 2.0 meters in suggestion.Meanwhile, also should guarantee to lay bus and detect after detecting device the distance between stop line and zebra crossing at 2～3 meters or 1～3 meter.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. a public transportation lane coil checker distribution method, it is characterized in that: be included in and on bus special lane, lay bus check-in detecting device and bus detects two kinds of coil checkers of detecting device, the moment the accumulative total that cross coil checker installation position for detection of public transit vehicle cross a number of bus, bus check-in detecting device detects detecting device with bus and is all connected with signal controller, signal phase state when signal controller Real-time Obtaining bus crosses coil checker, specifically comprises following step:
Step 1, according to traffic signals control node, the urban road that is provided with public transportation lane is carried out to section partition, described traffic signals control node comprises signalized crossing and signal controlling section;
The road of step 2, each section of marking off is divided into following two classes according to the quantity of bus stop, is respectively without the section of bus stop and has the section of bus stop;
The laying of step 3, coil checker: bus detects detecting device unification and is laid between stop line and zebra crossing; Bus check-in detecting device is as follows according to the different laying modes of section type:
Section without bus stop: be laid in the public transport special straight mouthful track of advancing and forbid changing Lane line and dotted line connecting position;
There is the section of bus stop: Loop detector layout is forbidden changing Lane line and dotted line connecting position in the public transport special straight mouthful track of advancing if this section, only for providing signal priority along the current public bus network of public transportation lane, checks in bus; As long as if this section detects that public transit vehicle is by just providing signal priority, the Loop detector layout that bus checked in goes out station location in the downstream of the bus stop nearest apart from downstream traffic signals control node.
2. a kind of public transportation lane coil checker distribution method according to claim 1, is characterized in that: the coil that bus detects detecting device is of a size of 1 meter or 2 meters at length direction, is of a size of 2 meters at Width.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104637301A (en) * | 2015-03-03 | 2015-05-20 | 无锡物联网产业研究院 | Traffic information acquisition device and method |
| CN109215357A (en) * | 2018-08-09 | 2019-01-15 | 江苏大学 | Intersection public transport based on velocity measuring is jumped the queue method for controlling priority |
| CN113870585A (en) * | 2021-09-15 | 2021-12-31 | 连云港杰瑞电子有限公司 | Layout method for bus priority control multi-step detection point positions |
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| CN101256714A (en) * | 2008-04-07 | 2008-09-03 | 北京安效技术有限公司 | City public traffic circuit planning operation method and road signal controller |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104637301A (en) * | 2015-03-03 | 2015-05-20 | 无锡物联网产业研究院 | Traffic information acquisition device and method |
| CN109215357A (en) * | 2018-08-09 | 2019-01-15 | 江苏大学 | Intersection public transport based on velocity measuring is jumped the queue method for controlling priority |
| CN113870585A (en) * | 2021-09-15 | 2021-12-31 | 连云港杰瑞电子有限公司 | Layout method for bus priority control multi-step detection point positions |
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Application publication date: 20140716 |