RU2409869C1 - Method of controlling lane traffic - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: lanes are divided into sections at the boundaries of which stop-and-go lights are installed. With go-light, transport facilities move along the lanes crossing boundaries of sections equipped by pickups to register crossing of said boundaries. In case there are obstacles in any lane, pickups that fail to send signals are used to determine the sections with blocked traffic and to turn signal lights at the start of said boundaries into stop-lights. Signal light at the boundary of previous section of the given lane generates amber light, an arrow, to indicate lane for transport facilities to change into. To quickly free obstructed lane traffic, short-term stop-light is switched on additionally at signal light installed at the boundary of adjacent lane whereon, then traffic is resumed.

EFFECT: higher efficiency of control, particularly, in jams.

5 cl, 7 dwg

Description

The invention relates to the field of traffic control of vehicles on highways, in particular, to identify and eliminate traffic jams that have arisen.

The prototype is a method of regulating traffic in the lanes of the carriageway, including the use of red and green traffic signals, which prohibit and allow traffic in the lane, and a yellow signal in the form of an arrow tilted diagonally down to the right or left, the inclusion of which informs about the upcoming change of signal and the need change to the strip indicated by the arrow [1].

The disadvantage of the prototype is that the switching of traffic signals is carried out, as a rule, by a person (or in time), who must directly or using television equipment monitor the prevailing traffic conditions on the road and generate control actions using these signals. Since the number of observations is limited by physical, technical, and economic capabilities, such motion control is ineffective. At night and in conditions of poor visibility, monitoring the traffic situation becomes difficult, which further reduces the effectiveness of traffic regulation.

The objective of the invention is to increase the efficiency of traffic regulation in the lanes of the carriageway, including when traffic jams occur.

The problem is solved in that in a method for regulating traffic in the lanes of the carriageway, including the use of red and green traffic signals, respectively prohibiting and allowing traffic in the lane, and a yellow signal in the form of an arrow tilted diagonally down to the right or left, the inclusion of which informs about the upcoming changing the signal and the need to readjust to the lane indicated by the arrow, the lanes are divided into sections at the borders of which traffic lights are installed, a section with blocked traffic is determined and at the traffic light belonging to its border, a red signal is generated, and at the traffic light belonging to the border of the previous section, a yellow signal in the form of an arrow indicating the lane to which it is necessary to change lanes.

The moments of crossing the borders of vehicles are recorded and the lane traffic conditions are determined by the number and frequency of these moments.

In direct proportion to the flux density of moving vehicles increase the number of previous sections, at traffic lights belonging to the boundaries of which form a yellow signal.

In addition, a red signal is formed for a short time at a traffic light belonging to the border of an adjacent lane.

Periodically change the red and yellow signals to green.

The prior art does not reveal solutions that have signs that match the distinctive features of the claimed invention and have the same effect as they, on the technical result, consisting in improving the efficiency of traffic regulation in the lanes of the carriageway.

The invention is reflected in the operations:

- the lanes are divided into sections, at the borders of which traffic lights are installed, a section with blocked traffic is determined and a red signal is formed at the traffic light belonging to its border, and a yellow signal is displayed in the traffic light belonging to the border of the previous section in the form of an arrow indicating the strip to which need to be rebuilt;

- register the moments when vehicles cross borders and determine the lane traffic conditions by the number and frequency of these moments;

- in direct proportion to the flux density of moving vehicles, increase the number of previous sections, at traffic lights belonging to the borders of which they form a yellow signal;

- additionally briefly form a red signal at a traffic light belonging to the border of an adjacent lane;

- periodically change the red and yellow signals to green.

Separation of lanes into sections at the borders of which traffic lights are installed, determination of a section with blocked traffic and the formation of a red signal at a traffic light belonging to its border, and a yellow signal in the form of an arrow indicating the strip to which it is necessary at the traffic light belonging to the border of the previous section rebuilds, allows you to pre-prevent vehicles from entering the area blocked for movement. This, in turn, excludes the appearance of conflicting traffic flows, one of which, having an advantage, goes along a traffic lane that is free of traffic, and the other, being blocked, tries to leave this free lane, while interfering with traffic along it (creating a traffic jam). Conflict prevention helps increase the efficiency of traffic regulation.

Registration of moments when vehicles cross borders and determining the number and frequency of these moments of traffic conditions in the lanes makes it possible to quickly generate control actions, which increases the efficiency of management. Moreover, if the registration of the moments of intersection and the determination of their number and frequency are performed using sensors, then the development of control actions can be automated, which further increases the efficiency of regulation of the movement of vehicles.

An increase in the number of previous sections at traffic lights, the borders of which form a yellow signal in direct proportion to the density of the flow of moving vehicles, enables drivers to change lanes to the desired lane in advance, without interfering with traffic on this lane.

The short-term formation of a red traffic signal at the border of an adjacent lane contributes to the quick release of the lane, which is blocked, from vehicles by transferring them to the lane that is vacant and thereby eliminating the conflict flow. It also improves the quality of regulation.

Periodic change of red and yellow signals to green makes it possible to determine traffic conditions in a blocked area. If several vehicles started up with a green traffic light safely pass the boundaries of a blocked section, then we can conclude that the lane has become free for traffic and continuous movement can be resumed along it. If the borders of the indicated section by vehicles are not crossed, then traffic on this lane should not be allowed. Moreover, in this case, it is necessary to briefly turn on the red signal in the adjacent lane to help quickly leave the blocked lane for vehicles.

The invention is illustrated by drawings.

Figure 1 shows a diagram of a highway.

Figure 2 shows a timing diagram of the operation of sensors installed on the boundaries of sections of the left lane of the highway.

Figure 3 shows a timing diagram of the operation of sensors installed on the boundaries of sections of the right lane of the highway.

Figure 4 shows a diagram of a highway when an obstacle to traffic on the lane.

Figure 5 shows a diagram of a highway at the time of filing a control action.

Figure 6 shows a diagram of the highway as a result of the implementation of the control action.

Figure 7 shows a diagram of a highway after correction of the control action.

The roadway for vehicles 1 contains lanes 2, 3, divided into sections ab, bc ... fg, gh, at the boundaries aa, bb ... gg, hh of which there are traffic lights 4, which are able to generate red (k), yellow ( g) and green (h) colors.

The method is implemented as follows.

Lanes 2, 3 are divided into sections ab, bc ... fg, gh, at the borders aa, bb ... gg, hh of which traffic lights 4 are set. When the traffic signals are green, vehicles 1 move in strips, successively crossing the boundaries of the sections (Fig. 1). Visually or using sensors control the conditions for the movement of vehicles in lanes. For example, using the "method of measuring the number of vehicles" (Pat. RF 2276809, 2006), you can determine the number and frequency of vehicles crossing borders by installing sensors on them. In this case, vehicles passing above the sensor will generate voltage pulses recorded by the corresponding equipment (Figs. 2, 3). So, for example, the vehicle (Fig. 1), depicted on the border hh of strip 3 (right) at times t ₁ , t ₅ ... t ₉ and t ₁₈ , will cross the boundaries aa, bb ... gg, hh, respectively, causing the appearance of pulses (figure 3). Similar pulses at the boundaries aa, bb ... gg will be generated by the next vehicle at times t ₃ , t ₇ ... t ₁₄ . Vehicles that may be located in sections bc, cd, de, ef, fg (not shown in FIG. 1) generate pulses indicated by an ellipsis in FIG. 3. The following vehicles during this time will only have time to cross the border aa (moments t ₁₀ , t ₁₃ , t ₁₇ ). A similar pattern will be observed for vehicles (figure 2), moving in the lane 2 (left). The moments of crossing the borders of vehicles are recorded and the lane traffic conditions are determined by the number and frequency of these moments. The periodic appearance of pulses on each of the borders indicates the movement of vehicles in these bands. The higher the pulse frequency, the higher the flux density. By the difference in the numbers of pulses arriving respectively from the previous and subsequent borders, one can judge the number of vehicles in the area between these borders.

In the event of an obstacle to traffic along a lane, for example, on the left (Fig. 4), a section with blocked traffic is determined and a red signal is formed at a traffic light belonging to its border, and a yellow signal in the form of an arrow is generated at a traffic light belonging to the border of the previous section, indicating the strip on which it is necessary to change lanes (figure 5). Identification of a blocked area can be performed visually or, for example, using the described sensors. At the same time, pulses from the sensor located on the hh border of the left band will not be formed at first, then, as the queue grows, by gg, etc. Assume that no pulses arrive from the sensors at the boundaries hh, gg and ff. Then at the traffic lights belonging to the boundaries gg and ff of strip 2, red is formed, at the traffic light of the border ee - yellow signals (Fig. 5). It should be noted that the color of the traffic signal at the border hh does not matter. It can remain green, so that in case of an opportunity, the vehicle, due to which the traffic stopped, could continue to move along the left lane. With a red traffic signal, the indicated vehicle will be able to leave the place of a forced stop by changing to the right lane.

To quickly release lane 2, a red signal is additionally briefly formed at a traffic light belonging to the border ff of adjacent lane 3 (Figs. 5, 6). At the same time, vehicles located in a blocked area leave it unhindered, moving in lane 3.

Directly proportional to the flux density of moving vehicles, increase the number of previous sections, at the traffic lights belonging to the boundaries dd, ee of strip 2, they form a yellow signal (Fig. 7). The higher the density, the more time (distance) is required to change from one lane to another; therefore, a yellow traffic signal can also be formed at the border cc of this lane. In addition, if after analyzing the current situation it is established that the blocking of traffic occurred on the site gh, then a yellow traffic signal (correction of the control action) can also be formed at the border ff of the left lane, increasing the length of the lane of the lane of vehicles (Fig.7).

Periodically change the red and yellow signals to green in the left lane to determine traffic conditions in a blocked area. If vehicles moving on the green signal generate signals at the boundaries dd, ee, ff, gg and hh of lane 2, then we can conclude that the obstacle in this lane is eliminated, you can turn on the green signal to resume movement. This allows you to automate the motion control process.

The implementation of the invention will effectively regulate the movement on highways, preventing the occurrence of traffic jams by changing lanes to an obstacle-free lane in advance. In this case, the speed of movement in this lane, due to the increasing flux density, is likely to decrease, but will be stable due to the absence of conflicting flow in the blocked lane.

Information sources

1. The rules of the road of the Russian Federation. - M .: IDTR LLC, 2009. P.10, p.6.7 - prototype.

Claims (5)

1. A method of regulating traffic in the lanes of the roadway, including the use of red and green traffic signals, respectively prohibiting and allowing traffic in the lane, and a yellow signal in the form of an arrow tilted diagonally down to the right or left, the inclusion of which informs about the upcoming change of signal and the need change to a lane indicated by an arrow, characterized in that the lanes are divided into sections at the borders of which traffic lights are installed, a section with blocked traffic is determined and traffic lights belonging to its border, form the red signal, and at a traffic light, relating to the previous border area - yellow signal in the form of an arrow indicating band which must be reconstructed. 2. The method according to claim 1, characterized in that the moments of crossing the borders of the vehicles are recorded and the lane traffic conditions are determined by the number and frequency of these moments. 3. The method according to claim 2, characterized in that in direct proportion to the flux density of moving vehicles increase the number of previous sections, at the traffic lights related to their borders, they form a yellow signal in the form of an arrow indicating the lane that needs to be lined up. 4. The method according to claim 1, characterized in that it additionally briefly generates a red signal at a traffic light belonging to the border of an adjacent lane. 5. The method according to claim 1, characterized in that the red signal and the yellow signal are periodically changed in the form of an arrow indicating the band to be tuned into green.

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