CN1308306A - Double setup method of traffic signal light and double traffic signal light device - Google Patents
Double setup method of traffic signal light and double traffic signal light device Download PDFInfo
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Abstract
A method of double setting traffic signal light is to set an other group of lights in addition to the original group of signal lights at the crossroads. The setting method is to set the second group of lights at certain distance to the original group of lights. The on and off time of each light in the second group is always earlier than the light in original group, and the time difference is controlled by the control circuit. There is at least a light on for passing-through direction in the second group of signal lights. The present invention raises the utilization rate of the road.
Description
The present invention relates to a kind of dual method to set up of traffic lights, and realize the employed dual traffic signal light device of this method.
For vehicle and pedestrian smoothly, safety, rapidly by the intersection, people have just invented the red and green signals lamp and have directed traffic before more than 100 year, this method becomes the general a kind of traffic law in countries in the world gradually.At present, the reddish yellow green signal light of road traffic commander aspect mainly is placed in intersection and pedestrian's street crossing lateral road, and they all are arranged on the intersection or cross the roadside, street.Along with Chinese society and expanding economy, motor vehicle, bicycle and pedestrian's quantity increases sharply, traffic pressure on the main roads of many big and medium-sized cities can't bear load, cause traffic jam to take place again and again, and more and more fiery gesture arranged, and a little less than the handling capacity of grade crossing place vehicle, the bottleneck of traffic jam often is especially when magnitude of traffic flow peak (as the commuter time).Being difficult to obtain in the existing road situation short time transform, how improving the traffic clearance ability of grade crossing, is vehicle supervision department's problem demanding prompt solution.Now, the grade crossing that the magnitude of traffic flow in the city is bigger has all been set up divided lane line and red green direction signal command lamp, but when needing to keep straight on, the vehicle that turns left or turn right is lined up in the stop line of intersection, and according to the commander of red green directional signal light, successively, during respectively by the intersection, at this moment the real available roadway width of cloth has been compressed, the road width of cloth in for example original three tracks, when through vehicles passes through the intersection, a Through Lane is open in the middle of having only, the vehicle of left-hand rotation or right-hand rotation direction is in motionless waiting status, and they have occupied two tracks in vain; When left turning vehicle passed through the intersection, it was open having only the left turn lane in the left side, and the vehicle of craspedodrome or right-hand rotation direction is in motionless waiting status, and they have also occupied two tracks in vain.Therefore, pass through as quickly as possible in order to make the intersection vehicle, should open more track (being the road width of cloth) as far as possible, the track is open many more, and the same time is just many more by the vehicle at crossing.Effectively way is: in the open finite time of arbitrary directional signal light, should manage to allow the vehicle of all these directions occupy track as much as possible.Simultaneously, also to avoid allowing as far as possible motor vehicle from the starting state by the intersection because from the starting state by lacking more than one times than the vehicle that passes through at transport condition.
Task of the present invention is at as above problem, a kind of dual method to set up of traffic lights is provided, and realizes the employed dual traffic signal light device of this method.It is under the existing road condition, can not only open track (being the road width of cloth) as much as possible, and can avoid motor vehicle to pass through the intersection from the starting state as far as possible, thus improving the traffic clearance ability of intersection greatly, its effect is especially obvious in the peak period of the magnitude of traffic flow.The technical scheme of the alleviation urban transportation peak pressure that is a kind of small investment, is easy to implement, gets instant result.
Technical scheme of the present invention is as follows: the dual method to set up of grade crossing traffic lights: outside the original traffic lights of road junction, increase again one group of signal lamp is set, concrete grammar is: a distance at each group original signal lamp rear is provided with second group of signal lamp, each lamp is opened and the time of extinguishing in second group of signal lamp, all shift to an earlier date than first group, the mistiming is controlled by control circuit.Here the signal lamp that is adopted preferably indicates the signal lamp of clearance direction, is that second group of signal lamp adopts the signal lamp that indicates the clearance direction at least.Said second group of signal lamp can be arranged on all roads in intersection, also can only be arranged on wherein one, two or several the roads, for example all adopts dual setting on four roads at the parting of the ways; Or dual setting is only adopted on main crossroads therein in the T-shaped road junction.Here said " first group " " second group " is that middle mind-set is extended narration all around with the intersection; Be to arrive second group earlier when vehicle is advanced, the back arrives first group.After being provided with second group of signal lamp, can adopt following scheme to improve the vehicle percent of pass: for example: the shunting management is carried out in each track of second group of signal lamp administration, and the vehicle that different directions is driven towards in preparation enters different tracks respectively; Then relaxing the restriction in each track between two groups of signal lamps, even can be set to general track: be the vehicle that second group of signal lamp let pass, increased available track quantity, can improve handling capacity.And for example: when second group of signal lamp let pass the vehicle of both direction simultaneously, can share each track, and eliminate the phenomenon that the crossing has vacant track always by the vehicle of this both direction.So both can increase the service efficiency in track, can improve the speed of passing through of vehicle again." certain distance " between said two groups of signal lamps, be meant the needed distance of vehicle lane change, that is: all vehicles in a certain track of second group of signal lamp, in the process of travelling to first group of signal lamp, drive towards other tracks respectively, promptly disperse to occupy the more needed distance of multilane or all tracks.The length of this distance is generally 15 meters to 60 meters by the number of this road junction roadway, the density of vehicle and factors such as the speed limit decision that should locate.Equally, two groups of signal lamps are opened and " mistiming " of extinguishing, and also are to be determined by the number of lanes at place, crossing, the flow of vehicle, the combined factors such as speed limit on this ground.For example, can be after above-mentioned " certain distance " be determined, with the speed per hour of this segment distance divided by vehicle, its result is the mistiming of time; Also can start to walk from second group of signal lamp, accelerate to definite mistiming of needed time of crossing intersection part with dilly.Simultaneously, in the same intersection mistiming of two groups of signal lamps of each road can be consistent, also can be inconsistent; In two groups of signal lamps of same road the mistiming of each lamp in corresponding each track can be consistent, also can be inconsistent.The device of realizing this method is dual traffic signal light device, form by traffic signals command lamp that is arranged on the crossing and signal lamp control circuit, it is characterized in that: be provided with second group of signal lamp device, this device comprises second group of signal lamp and second group of signal lamp control circuit, this control circuit is connected with the control circuit of first group of signal lamp, perhaps two groups of shared control circuits of signal lamp adopt logic digital circuits at second group of signal lamp control circuit at least.At least the second group signal lamp should be the signal command lamp that indicates the clearance direction, and the signal command lamp in preferably corresponding each track, or the signal command lamp of corresponding each direction of traffic.
The present invention provides a kind of new method and apparatus for the vehicle handling capacity that improves the crossing on the same level intersection, can utilize existing traffic law, existing silent cop and utilize the condition of road surface of existing intersection, the vehicles discharging ability that improves city grade crossing significantly is more than at least 50%.Use after this method and the device, the vehicle of waiting for green light in each track can (second group of signal lamp place) be distributed in wait in each different tracks in place far away, distance crossing, vehicle is after passing through second group of signal lamp, increase the quantity of through lane at once, can increase substantially crossing intersection part so that the handling capacity on whole piece road surface.Simultaneously, as long as the mistiming of two groups of signal lamps is designed rationally, then all vehicles all are second group of signal lamp place starting, can improve the handling capacity of vehicle again from another point of view with the higher speed of a motor vehicle by intersection (first group of signal lamp place).The alleviation urban transportation peak pressure that the technical program can be got instant result, its small investment, be easy to implement, market application foreground is wide.
Now be described further with embodiment in conjunction with the accompanying drawings.
Fig. 1 is a fundamental diagram of the present invention;
Fig. 2 is the principle of work synoptic diagram of embodiment 1;
Fig. 3 is an electrical schematic diagram;
Fig. 4 is embodiment 2 synoptic diagram;
Fig. 5 is embodiment 3 synoptic diagram.
1. when signal lamp 2 is whole redness, the craspedodrome direction greensignal light of signal lamp 3 is lighted, all tracks that through vehicles enters in regional 8 thereupon wait for that the vehicle of promptly taking advantage of other crossing is in the current time, and through vehicles sails 8 interior all tracks, zone into and does the preliminary work in well street.
2. when signal lamp 2 was green, the through vehicles that has waited on all tracks in zone 8 can be started to walk simultaneously by intersection 1, and this road road width of cloth that made the street is by the use of maximum.
3. to close through vehicles current and when beginning to turn left the direction vehicle pass-through when needs, be that the craspedodrome direction red eye of second group of signal lamp 3 is lighted and simultaneously left-hand bend direction greensignal light lighted, and signal lamp 2 still be a green.At this moment situation is, the through vehicles that does not enter zone 8 is closed in the rear of stop line 10, and the through vehicles that has entered zone 8 still can pass through the intersection; And this moment, left-hand bend direction vehicle enters zone 8, possible its place ahead has through vehicles, but the left-hand bend that can not hinder it to enter behind the intersection 1 is travelled, in addition, because left-hand bend direction vehicle enters intersection 1 in transport condition, so the vehicle by the intersection in the unit interval is than from starting state many by the intersection, simultaneously, left-hand bend direction vehicle is after entering zone 8, if the vehicle in the place ahead is large-scale vechicles such as motorbus, the compact car of its back (as car) can be overtaken other vehicles to turn left by intersection 1 in track from the side, because this moment, the through vehicles emptying in the zone 8, its track is vacated.
4. when needs are closed left-hand bend direction vehicle pass-through, be earlier the left-hand bend direction red eye of second group of signal lamp 3 to be lighted, wait for time several seconds (making the whole emptying of left-hand bend vehicle that enter in the zone 8), whole red eyes of signal lamp 2 are lighted.
5. at this moment, the point duty of intersection 1 returns back to state 1., moves in circles later on.Because the difficulty to the point duty of right-hand bend direction vehicle is lower, it can be more with reference to the pattern of using, and do not give unnecessary details so do not add at this.
By above explanation, can find: what one, between signal lamp 2 and the signal lamp 3 logical associations is arranged is the time figure relation, if in case the disorderly or forfeiture of this time figure relation, two group traffic signals command lamp devices of the present invention can't use.Two, second group of reddish yellow green traffic signal command lamp device is not the work that is unlocked in 24 hours all day, only when magnitude of traffic flow peak, just be activated, therefore, 7 places must be provided with timing circuit or timer at the signal lamp control circuit, utilize prior art, no matter they be can realize with hardware configuration or with the form of Single Chip Microcomputer (SCM) program software configuration.The circuit connecting relation of present embodiment is with reference to Fig. 3: it is the circuit diagram of the two groups of signal lamp control circuits of embodiment 1 (Fig. 1), and this circuit adopts single-chip microcomputer and gate technology.Because the working condition of the signal lamp of the relative direction of intersection is identical, so four groups of signal lamps with signal lamp 2 and four crossings of 2 ' expression amount to 36 signal lamp (every group of three tracks, the green three kinds of color signal lamps of per car road reddish yellow), second group of signal lamp with signal lamp 3 and four crossings of 3 ' expression amounts to 36 signal lamps (every group of three tracks, the green three kinds of color signal lamps of per car road reddish yellow); Signal lamp 2 and 2 ' unlatching, to close be signal lamp control circuit management by based on IC2 (8051 single-chip microcomputer), 18 I/O port outputs level signals of 8051 single-chip microcomputers are to TTL integrated circuit (IC) chip 74LS04 (six not gates), drive relay J 1～J9 by 74LS04, thereby reach the unlatching of signal lamp 2 and 2 ', the control of closing; Second group of signal lamp 3 and 3 ' duty are by based on the signal lamp control circuit management of IC1,18 the I/O port outputs level signals of 8051 single-chip microcomputers that are IC1 are to TTL integrated circuit (IC) chip 74LS04 (six not gates), drive relay J 1～J9 by 74LS04, thereby reach the unlatching of signal lamp 2 and 2 ', the control of closing; Because signal lamp 2 and 2 ' and second group of signal lamp 3 and 3 ' are opened, closing motion must be cooperatively interact digital, the coordination accurately of logical formula, simultaneously since second group of signal lamp 3 and 3 ' only when magnitude of traffic flow peak (as the commuter time) just understand and be come into operation, and have only signal lamp 2 and 2 ' at ordinary times in work, so this pair group signal lamp control circuit has adopted the double mcu circuit design, external timing signal CP is to IC1, IC2 provides the oscillating impulse source, make two 8051 synchronous workings, by the parallel communications (P1.0～P1.7) transmission of the mutual data of connection realization of two single-chip microcomputers; Two 8051 single-chip microcomputers all need the support of programming software, on the basis of same design, respectively to two 8051 mcu programmings, make the supervisory signal lamp 2 and 2 ' that IC2 can be independent, but when working simultaneously, realize the supervisor status of two group signal lamp control circuits with IC1, this design helps according to the various needs in intersection, exchange the management software of two groups of different signal lamp control circuits, it is convenient to maintenance and software upgrading, does not but influence signal lamp 2 and 2 ' just at work.
With reference to 5, it has represented two groups of another form of signal lamp control circuit, and each group signal lamp of second group of reddish yellow green traffic signal command lamp 3 all is connected with separately second group of signal lamp control circuit 7 by connecting line 5 respectively; Connecting line 4 is except connecting signal lamp 2 and signal lamp control circuit 6, still connect second group of signal lamp control circuit 7, promptly second group of information that signal lamp control circuit 7 letter of acceptance signal lamps 2 open, cut out through digital circuit, realizes second group of signal lamp 3 opens, cuts out logic control.
Claims (6)
1, a kind of dual method to set up of traffic lights, outside the original traffic lights of road junction, increase again one group of signal lamp is set, concrete grammar is: a distance at each group original signal lamp rear is provided with second group of signal lamp, the unlatching of each lamp and the time of extinguishing in second group of signal lamp, all shift to an earlier date than first group, the mistiming is controlled by control circuit.
2, according to the dual method to set up of the described traffic lights of claim 1, it is characterized in that: be that second group of signal lamp adopts the signal lamp that indicates the clearance direction at least.
3, according to the dual method to set up of claim 1 or 2 described traffic lights, it is characterized in that: said " certain distance " is meant the needed distance of vehicle lane change.
4, according to the dual method to set up of the described traffic lights of claim 3, it is characterized in that: said two groups of signal lamps are opened with the mistiming of extinguishing and are determined in order to a kind of in the method down:
The distance of two groups of signal lamps is divided by the speed per hour of vehicle, and its result is as the mistiming,
Start to walk from second group of signal lamp with dilly, accelerate to definite mistiming of needed time of crossing intersection part.
5, a kind of dual traffic signal light device, form by traffic signals that are arranged on the crossing and control circuit, it is characterized in that: be provided with second group of traffic signals command lamp device, this device comprises second group of signal lamp and second group of signal lamp control circuit, this control circuit is connected with the control circuit of first group of signal lamp, perhaps two groups of shared control circuits of signal lamp, at least the second group signal lamp control circuit adopts logic digital circuits.
6, according to the described dual traffic signal light device of claim 5, it is characterized in that: be the signal lamp that indicates the clearance direction at second group of traffic signals command lamp at least, or the signal command lamp in corresponding each track, or the signal command lamp of corresponding each direction of traffic.
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| CN 01108206 CN1308306A (en) | 2001-02-16 | 2001-02-16 | Double setup method of traffic signal light and double traffic signal light device |
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| CN 01108206 CN1308306A (en) | 2001-02-16 | 2001-02-16 | Double setup method of traffic signal light and double traffic signal light device |
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| WO2004077377A1 (en) * | 2003-02-27 | 2004-09-10 | Shaopeng Yang | Road traffic control method and traffic facilities |
| CN100334301C (en) * | 2004-02-16 | 2007-08-29 | 姚东川 | Apparatus for changing traffic administration pattern at present crossroads and its using method |
| CN100385473C (en) * | 2006-01-06 | 2008-04-30 | 北京工业大学 | Double-layer signal light controlled level crossing combined node and its setting method |
| CN100408757C (en) * | 2005-08-23 | 2008-08-06 | 邹世才 | Non-collision left turn method for automobile and bicycle at crossing of urban arterial road |
| WO2008097129A2 (en) | 2007-01-31 | 2008-08-14 | Daniil Alexandrovich Agafonov | Traffic light warning system |
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| CN108133606A (en) * | 2018-02-11 | 2018-06-08 | 华北理工大学 | A kind of big visual field signal lamp and its setting method |
| CN110047298A (en) * | 2019-04-17 | 2019-07-23 | 中山市路讯智能交通科技有限公司 | A kind of traffic signals traffic system and its method for improving traffic efficiency |
| CN110111572A (en) * | 2019-05-14 | 2019-08-09 | 南京林业大学 | A method of control vehicle is quickly through traffic lights crossing |
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