Why are traffic lights red, yellow and green. Traffic lights on all types of roads Significance of traffic lights for rail transport

There was a time when it was not easy to cross the street of a big city. People stood on the sidewalk for a long time and waited for the end of the endless stream of horse-drawn carriages. The most impatient ran across the street, risking getting under the hooves of horses or cart wheels.

What can we say about our days, when the flow of cars rushes in several rows! How can pedestrians cross the street? But there are still cars that move in the transverse direction, and they also need to clear the road. To help road users - both pedestrians and drivers - comes traffic lights. Translated from Greek, traffic light means “bearer of light”. It regulates traffic with the help of light signals. Most traffic lights use three colors: red, yellow and green.

Why were these traffic light colors chosen?

Red is the color of danger. It is clearly visible both during the day and at night, and in rain and fog. It is no coincidence that fire engines of all countries are painted red. They warn other road users of the danger and demand to give way to them. Here is a red traffic light forbidding traffic. It's like he's saying, "Stop! The path is closed!

Green the color is sharply different from red; they cannot be confused. Therefore, the green signal of the traffic light, unlike the red one, does not prohibit, but allows movement. He seems to say: “The way is open! Boldly forward!

Between the red and green "eyes" of the traffic light, another one was placed - yellow. He urges drivers and pedestrians to be careful, as if telling them: “Attention! Soon traffic will be either allowed or prohibited.

So traffic lights with three sections are installed in cities, in which either a red, or a yellow, or a green signal is lit. They are called three-piece. Sometimes at traffic lights, in addition to the three main color sections, additional green arrows are installed. They indicate the direction in which movement is allowed.

What other traffic lights are there?

Along with three-section traffic lights, there are also special traffic lights for pedestrians. They use only two light signals - red and green. They depict pedestrians. The red man is standing, and the green one is walking. It’s immediately clear to any pedestrian: if a red pedestrian is lit, you can’t go across the road, you have to stand. But if a green pedestrian is lit, you can cross the street.

Most often, such pedestrian traffic lights are installed in places where there is a large flow of cars and it is difficult for pedestrians to cross the road.

Remember this rhyme about traffic lights

If the red light is on -

So your path is closed!

If the yellow light is on -

"Get ready!" - He speaks.

And the green light is on

The way forward is open to you!

Today, everyone understands what a traffic light is. Colors: red, yellow and green are familiar even to a child.

However, there was a time when these optical devices did not exist, and it was not very easy to cross the street. Especially in large cities, passers-by had to let endless horse-drawn carts pass for a long time.

There was confusion and endless disputes on the cross streets.

A small digression into history

Traffic lights were originally invented by the British. It was staged in London at the end of 68 of the 19th century. It was run by a man. The mechanism had two arrows. When they were in a horizontal position, movement was prohibited, and when lowered, passage was allowed. At night, a gas burner was turned on, with the help of which a red and green signal was given. It turned out to be unsafe. The gas exploded, wounded a policeman, the traffic light was removed.

Only at the beginning of the twentieth century in America was an automatic traffic light patented. Colors were not used in it, their inscriptions replaced them.

The red color is very clearly visible in any weather: when the sun is shining brightly, it is raining, or there is fog. From a physical point of view, red has the maximum wavelength. Perhaps that is why it was chosen as forbidden. All over the world, the meaning of red is the same.

The other traffic signal is green. This is the color of calmness, peace. It has a relaxing effect on the human brain. Green allows movement. It can be seen far enough, any driver sees this color long before the traffic light passes and calmly, without braking, overcomes the intersection.

However, as they say, there is an unwritten rule according to which it is still worth slowing down when driving through a dangerous intersection, even when the traffic light is green. This action often helps to avoid serious accidents.

Yellow - pay attention

The yellow color of the traffic light is intermediate. It has a warning function and encourages road users to pay attention. It is said that yellow symbolizes the mind, intuition and ingenuity. It usually lights up after red, urging drivers to prepare for movement. As practice shows, many drivers perceive the yellow signal of a traffic light as permissive and start moving. This is wrong, although it is not punishable by penalties. When the yellow color lights up, you need to squeeze the clutch, get ready, but to start moving, it’s better to wait for the green one, especially since it’s only a couple of seconds to wait.

In reverse order: green, yellow, red - the traffic light is not working. In modern devices, after the green, the red color immediately lights up, while in the last minutes the green starts flashing.

You can also sometimes see a continuously flashing yellow traffic light. This indicates that the traffic light is disabled or broken. Most often, traffic lights flash yellow at night.

Pedestrian traffic light

There is also a traffic light to regulate pedestrian traffic. What colors does it use? Red and green - definitely, but yellow is missing as unnecessary. A person does not need special preparation for crossing the road.

They are usually depicted as walking men. For the convenience of pedestrians, a time counter has recently been used. A special stopwatch counts how many seconds are left before the opposite signal is turned on.

As in conventional traffic lights, red indicates traffic is prohibited, while green indicates that the passage is open.

When passing through an intersection, drivers should be aware that pedestrians are taking advantage. So, for example, at an intersection, a car turns right at a green traffic light, while pedestrians crossing a perpendicular road also turn green. In this case, the motorist must give way to all pedestrians and only then continue driving.

What is a "green wave"

In large metropolitan areas, traffic on highways is accompanied by a large number of traffic lights that regulate traffic. The traffic light, the colors of which are known to everyone, switches them at a certain frequency. This frequency is automatically adjusted and ensures the safety of vehicles.

"Green wave" is tied to the speed of the car. It is assumed that, moving at a certain average speed, the driver, hitting the green traffic light, will also get green along the entire length of the highway. The three colors of the traffic lights switch at regular intervals, and there is consistency between a number of traffic lights. At all intersections of the route, coordinated according to this principle, there is the same cyclicity.

The "Green Wave" was developed for the convenience of crossing intersections; technically, this is not particularly difficult to implement. As a rule, signs are additionally installed on such highways with the recommended speed, which will ensure non-stop passage of intersections.

An assistant to the driver and pedestrian is a three-eyed traffic light. The colors switch in order and adjust the ride, ensuring the safety of all road users. Observing in good faith, you can avoid serious accidents and unpleasant situations on the roads.

05.08.2015 03.12.2015 by [email protected]

As you know, you can only cross the road in the places provided for this and only at the green traffic light. But traffic lights appeared at our intersections not so long ago, before traffic controllers were involved in coordinating traffic. Who owns the palm? Today, on the Birthday of the Traffic Light, we will deal with this issue.

1. Inventors of the traffic light

The first person to think of installing a traffic light at a crossroads to regulate traffic was John Peak Knight, a Londoner and specialist in railway semaphores. The first traffic light designed by him was installed in the British capital on December 10, 1868 near the Houses of Parliament.

Switching signals was carried out manually using two semaphore arrows. In a horizontal position, they signaled "stop", and lowered at an angle of 45 ° - movement with caution. So that at night it was possible to identify the signal given by the arrows, a rotating gas lamp was used, which shone red or green.

In 1910, Ernst Sirrin of Chicago developed and patented the world's first automatic traffic light switching system. His traffic lights had two inscriptions Stop and Proceed without illumination.

Just a couple of years later, in 1912, a resident of Salt Lake City, Utah, whose name was Lester Wire, created the world's first electric traffic light, with two round signal lights of red and green. For unknown reasons, Vayr did not patent his invention.

The next name in traffic light history is James Hogue. On August 5, 1914, the American Traffic Light Company installed four electric traffic lights designed by Hog at the intersection of 105th Street and Euclid Avenue in Cleveland.

Traffic lights were equipped with two light signals - red and green, and when switching they gave a sound signal. The whole system was controlled by a policeman who sat in a specially equipped glass box at the crossroads.

Six years later - in 1920 - traffic lights were installed in Detroit and New York, on which a yellow signal appeared. The people who developed them did not know each other: William Potts from Detroit and John F. Harris from New York.

Similar traffic lights were installed in 1922 in Paris at the intersection of Rivoli Street and Sevastopol Boulevard, as well as in Hamburg at Stephansplatz Square. In 1927, the same traffic lights appeared in Wolverhampton, England.

Often, the American inventor Garrett Morgan is often mentioned as the first inventor, who in 1923 received a patent for a traffic light of an original design. The first countdown traffic lights appeared in France in 1998.

As for the Soviet Union, the first traffic lights were installed here in the early 1930s. First, the traffic light appeared at the intersection of avenues on October 25 and the Volodarsky city of Leningrad (modern Nevsky and Liteiny avenues in St. Petersburg) on ​​January 15, 1930. In Moscow, the first traffic light began work on December 30 of the same year at the corner of Petrovka and Kuznetsky Most.

2. Types of traffic lights

The most widely used street and road traffic lights. Among them, automobile and traffic lights for pedestrians stand out - these varieties are most often found on the roads of the whole world.

Automobile traffic lights. As a rule, there are traffic lights with round signals of three generally accepted colors: red, yellow and green. The order of colors is strictly regulated. If the signals are arranged vertically, then red is always on top, and green is on the bottom. If the traffic light is horizontal, then the red signal will be located on the left, and the green one on the right. Additional sections with arrows are often hung on car traffic lights.

A yellow signal almost everywhere means this: it is allowed to pass the stop line, but it is necessary to slow down when entering a section protected by a traffic light, ready for the traffic light to switch to red. This signal can also be orange.

Traffic lights for pedestrians installed in the immediate vicinity of the established transitions. There are usually only two signals on them - forbidding and allowing. Their appearance may vary. The most common signals are in the form of a silhouette of a person - standing or walking.

In some countries, in the USA for example, the red signal is made in the form of a raised palm. Sometimes, instead of men and palms, the inscriptions "Go" and "Do not go" are used. In Oslo, two standing red human figures are used as a traffic signal forbidding pedestrians.

Why such difficulties? This is done for the convenience of people with poor eyesight, as well as for those who have difficulty with color discrimination (color blindness). In addition, traffic lights in different countries are equipped with a sound signal.

3. Design

What are traffic lights made of? There are several possible designs of traffic lights. The first option is traffic lights with incandescent or halogen lamps. Their design includes:

• Lamp
• Reflector
• light filter
• Fresnel lens
• Visor.

• Matrix of LEDs
• Anti-vandal glass
• Visor.

In Russia there is a monument to a traffic light.

It was installed in Novosibirsk in 2006.

Today it is very difficult to imagine traffic rules without the main tool for streamlining traffic, which is a traffic light. It is designed to adjust and facilitate both vehicular and pedestrian traffic. There are different traffic light signals, depending on their functions. Although they are similar to each other, they have certain nuances that must be remembered.

Traffic light: definition

A traffic light is an optical signaling device that is designed to regulate the movement of cars, bicycles and other vehicles, as well as pedestrians. It is used in all world states without exception.

Interesting! Previously, there was no green light in traffic lights in Japan. It was replaced by blue. But scientists have proven that green is more acceptable to human eyes.

Types of traffic lights

The most common are three-color traffic lights with round signals: red, yellow and green. Traffic rules in some countries require the use of orange traffic lights instead of yellow ones. Signals can be placed both vertically and horizontally. If no other special traffic lights or additional sections are provided, then they regulate the movement of all types of transport, as well as pedestrians. Next, we will look at various types of traffic lights, from everyday to special ones.

Classic three-section traffic light

Such a traffic light has, as a rule, three colors, arranged in order: red, yellow, green - from top to bottom or from left to right. Such traffic lights are installed at intersections. They are designed for the simultaneous passage of all types of transport in all directions permitted by traffic rules. They are also installed at regulated pedestrian crossings located between intersections. It is allowed to install such a traffic light at a railway crossing in settlements, at the intersection of a road with tram tracks, in front of a bicycle path and a carriageway. They can also be seen where the roadway narrows to allow oncoming traffic to pass alternately.

Interesting fact!The first three-section traffic light was installed in Detroit in 1920.

two-section

Traffic lights with two sections are used to regulate the flow of traffic in the territories of industrial enterprises and organizations, as well as during the narrowing of the roadway to organize a single-lane reverse traffic flow.

Single section traffic light with yellow light

Such a one-color traffic light is found at unregulated intersections and pedestrian crossings.

Traffic lights with additional section

Traffic lights can also be equipped with additional sectional sections with arrows or arrow contours. They regulate the movement of traffic in one direction or another. Such traffic lights work, according to the traffic rules, as follows: the contours of the arrows on all signals of a conventional three-color traffic light mean that its action extends only in one specified direction.

An additional section of a traffic light with a green arrow on a black background allows traffic according to the traffic rules, but does not provide advantages during the siding. Sometimes you can find an always burning green signal, which is made in the form of a plate with a solid green arrow. This means according to the traffic rules that the turn is allowed, despite the prohibitory traffic lights.

Such traffic lights are installed in those places where it is necessary to organize conflict-free traffic at intersections. If one of these traffic lights turns green, then when crossing the intersection, you can not give way. To avoid emergencies, personal traffic lights are placed above each lane, which show the direction of movement that is allowed from a particular lane.

Reversible traffic lights

Reversing traffic lights are used to regulate traffic along the lanes of the carriageway. These are dedicated band control knobs. At such traffic lights, from two to three signals can be placed: a red signal in the form of the letter "X" prohibits movement in a specific lane. The green arrow, which is directed down, on the contrary, allows movement. The yellow diagonal arrow indicates that the lane mode has been changed and indicates in which direction you need to leave it.

Traffic lights to control traffic across a pedestrian crossing

Typically, such traffic lights have only two types of signals: The first one allows, the second one forbids. As a rule, they correspond to green and red colors. The signals themselves can be of different shapes. Often they are depicted as a stylized silhouette of a person: standing red and walking green. For example, in America, the prohibition signal is made in the form of a red raised palm, meaning "stop." Sometimes inscriptions are used: red “stop” and green “walk”. In other countries, respectively, in other languages.

Traffic lights with automatic switching are installed on highways with busy traffic. But there are times when you can switch the traffic light by pressing a special button, which allows you to cross the road for a certain time. Modern traffic lights for convenience are equipped with a digital countdown display. For blind people, sound devices are mounted in traffic lights.

To regulate the movement of trams

A traffic light for a tram, as a rule, is placed in front of areas with limited visibility, long ascents and descents, at a tram depot and in front of arrows. There are two types of traffic lights for the tram: green and red. They are installed either to the right of the tracks, or hung in the center above the contact wire. Basically, such traffic lights notify tram drivers about whether the path is busy further or not. They do not regulate the movement of other vehicles and are purely individual. Their work is built automatically.

Traffic signals: traffic rules

Round lights mean the following: a static green signal allows the movement of vehicles or pedestrians, and a flashing green traffic light means that a prohibition signal will light up soon, but traffic is still allowed.

Interesting fact!In general, residents of large cities spend about six months of their lives waiting for a traffic signal to pass.

What does a yellow traffic light mean? It warns that the prohibiting signal will be replaced by an enabling one or vice versa, and for the duration of its action prohibits movement. A flashing yellow traffic light means that the section of the road on which this traffic light is located is not regulated. If it is located at an intersection and operates in this mode, then the intersection is unregulated. Drivers are guided by those articles of the traffic rules, which stipulate the passage of unregulated intersections. A static and flashing red signal prohibits movement in any direction.

Red and yellow traffic lights burning at the same time indicate that it is forbidden to move further, and the green light will soon turn on. The white-moon signal of the traffic light informs that the alarm is working, and you can continue driving. Such traffic lights are installed on tram and railway tracks.

Traffic lights that look like arrows mean the following: red, yellow and green arrows mean the same as round signals, only they act in a certain direction. An arrow that points to the left also allows a U-turn, unless this is prohibited by the corresponding traffic sign next in priority.

The green arrow of the additional section has a similar meaning. If this signal is turned off, or the red outline is on, then movement in this direction is prohibited. If the main green signal has a black outline arrow, then this means that there are other directions of movement than those indicated by the additional section.

What is more important: a sign, a traffic light or a marking?

The rules of the road imply the following priority: the main one is the traffic controller, then the traffic light, then the sign and then the markings. The signals of the traffic controller have priority over traffic signals and traffic signs. They are mandatory. All traffic signals, except for flashing yellow, are more significant than road signs. All road users are obliged to follow the instructions of the traffic controller, even if they contradict traffic lights, signs and markings.

The capital of Germany has a traffic light with thirteen signals. It is not so easy to understand his testimony right away.

Classic three-section transport traffic light.

Any of us knows from childhood that a red traffic light prohibits movement, and now both drivers are required to stop at the stop line.

But not everyone knows how a modern “advanced” traffic light works, what signals it can have and how exactly they alternate.

At the exam in the traffic police you will be asked:

What does the combination of red and yellow traffic lights mean?

The answer should not leave you in doubt - a short combination of red and yellow signals informs drivers that the green signal will turn on soon.

Red and yellow went out, green turned on, and you can move in all directions (unless, of course, otherwise indicated by signs or markings).

But do not rush to start moving. How many troubles and tragedies the author of these lines saw when the neighbors on the road blindly oriented towards the green signal. And this is not just advice, this is a requirement of the Rules.

Rules. Section 13. Clause 13.8. When the permissive signal of the traffic light is turned on, the driver is obliged to give way to vehicles completing the movement through the intersection, and to pedestrians who have not completed the crossing of the carriageway of this direction.

That is, before you start moving, you need to make sure that those who have now turned red have stopped. Someone may simply not have time to stop, and someone is in such a hurry that he is ready to slip through the intersection risking his life (well, only his own, but also someone else's).

Well, finally, the drivers on the intersecting road stopped at their stop lines, and now you can start moving. We are still green.

Green burned out, burned out and blinked.

And again, at the exam in the traffic police, someone will definitely get this question:

What does a flashing green traffic light mean?

And again, the answer is obvious - a flashing green signal informs drivers that its time is running out and yellow will soon turn on.

Is it possible to move on the green flashing? Do not doubt it is possible. Its duration is expiring, but it hasn't expired yet!

Another thing is that the green will blink for a short time - it will blink only three times, and then it will go out.

The green will go out, but then the yellow will light up. And here is what is said about the lone yellow signal in the Rules, in clause 6.2:

« yellow signal prohibits movement and warns of the upcoming change of signals.

And here it is important for the driver to understand!– If the lone yellow is on, then the next one will be red! That means you have to stop!

Now imagine that the yellow turned on when there were 5-10 meters left to the stop line. At a speed of 60 km / h, you can only keep the car by applying emergency braking! And even then, you will have to stop already at the intersection (having crossed the stop line and risking getting hit from behind). Novice drivers often do this (slow down sharply on yellow), and if an aggressive “experienced driver” was driving behind, then a blow from behind to a beginner in this situation is guaranteed.

Meanwhile, the Rules prohibit sudden braking anywhere and everywhere (except when it is necessary to prevent an accident):

Rules. Section 10. Clause 10.5. The driver is prohibited brake hard unless required to prevent an accident.

That is, if now the driver of the brown car brakes sharply, he will violate the requirement of paragraph 10.5 of the Rules. And in the event of an accident, both will be to blame - the driver of the red car is to blame because he did not keep a safe distance, and the driver of the brown car - because he braked unnecessarily sharply.

The Rules reacted to this situation with understanding and allowed movement to the yellow traffic light (if it is no longer possible to stop smoothly in front of the stop line):

Rules. Section 6. Clause 6.14. Drivers who, when the yellow signal is turned on, cannot stop without resorting to emergency braking, are allowed to continue further movement.

And you may be asked about this in the exam: “Are you allowed to continue driving if, when the traffic light turns yellow after the green one, you can stop before the intersection only by applying emergency braking?”.

And here the answer should be absolutely clear to you - permitted. Simply allowed, in any direction you want.

A lone yellow will not burn for long - in just a couple of seconds it will change to red, and the cycle will start over. But already on a red signal, drivers should definitely stop at the stop line.

And it's not all about traffic lights. If the traffic is not intensive, then it is irrational to keep drivers at the stop lines, and the traffic light can be transferred to the so-called yellow flashing mode.

That is, red and green do not turn on at all, and only yellow is turned on all the time. Moreover, it does not just burn, but it flashes at a frequency of once per second. This is how the Rules say about this signal:

Rules. Section 6. Clause 6.2. Yellow flashing signal allows traffic and informs about the presence of an unregulated intersection or pedestrian crossing.

In this situation, drivers must independently determine the order of passage, guided by the general principle of “interference on the right”.

In the traffic police collection there is a problem (shown below), solving which you are often mistaken. Some of you choose the third answer for some reason. Most likely, because they inattentively read the question. And the question says "with a yellow flashing traffic light"! And, consequently, this intersection has become unregulated. And, therefore, it is necessary to be guided by the signs of priority.

Traffic lights with an additional section (or with two additional sections).

A classic three-section traffic light can be equipped with an additional section (right or left) or two additional sections (right and left).

Such "rationalization" makes it possible to significantly increase the throughput of the intersection, it is only important that drivers correctly understand the signals of such a traffic light.

And, first of all, it is necessary to understand that movement in the direction of the arrow is only allowed when the additional section is turned on.

For example, traffic to the right is now open.

And only to the right and nowhere else!

Everyone who needs to go in other directions should stand and wait for the main green signal to turn on.

The main green signal turned on, and pay attention - black contour arrows are applied on the main green signal.

This was not the case at a three-section traffic light, but for a traffic light with an additional section, the presence of contour arrows on the main green is a must-have!

Now movement is allowed only in the directions indicated by the contour arrows.

But now the movement is open in all directions.

Traffic lights designed to regulate traffic in certain directions.

Creative thought does not stand still, and the organizers of the traffic did not calm down that they proposed adding additional sections to the traditional traffic light. If necessary, you can endow the classic three-section traffic light with additional functions without equipping it with additional sections.

You drive up to the intersection and see three traffic lights instead of one (according to the number of lanes in your direction).

It should be assumed that the action of each traffic light applies only to the lane over which it hangs. And since the red signal is on everywhere, it means that traffic from all lanes is prohibited.

Students. But why are red arrows burning instead of the usual round signal?

Teacher. This is done so that drivers, approaching the intersection, can change lanes in advance to the lane they need.

And the same arrows will be lit on the yellow signal, informing drivers about the directions in which they will be allowed to drive from this lane when the green signal turns on.

Now traffic is allowed from all lanes.

BUT!

It is necessary to adhere to those instructions that are dictated by arrows at traffic lights.

Traffic light with a flashing yellow signal.

The most dangerous intersections on the driver's path are an unregulated pedestrian crossing and an unregulated intersection. At these intersections, drivers must independently determine the order of passage, guided by the relevant requirements of the Rules.

Traffic safety can be significantly improved if the simplest traffic lights with one yellow flashing signal are installed at such intersections. The continuous flashing of the yellow signal informs the driver in advance of the approach to an unregulated intersection or pedestrian crossing.

There were no traffic lights at this intersection. We hung it here with the help of the Photoshop graphic editor.

But if he were actually here, this accident most likely did not happen.

And these two-way traffic lights with a yellow flashing signal are not at all superfluous at an unregulated pedestrian crossing.

Reversible traffic lights.

Until recently, we had roads with reverse traffic, almost exotic (although they were always in the Rules).

And today you can often see such a warning.

And here it is - a section of the road with reverse traffic.

There are appropriate markings on the roadway (double broken lines with long strokes), and reverse traffic lights hang above the lanes allocated for reverse traffic.

Now green arrows are turned on at all traffic lights, and while they are on, these three lanes are given for traffic in our direction.

On this section of the road, only one lane is allocated for reverse traffic. And now at the reversing traffic light we have a red cross on. And, therefore, now the reverse lane is given to drivers of the opposite direction.

In our country, right-hand traffic is accepted and, in principle, everyone understands that, freeing the reverse lane, you need to change lanes to the right.

Nevertheless, the Rules also provided for a three-section reversing traffic light - the yellow arrow, firstly, informs about the upcoming signal change, and, secondly, shows drivers where to change lanes, freeing up the reverse lane.

Now it's time for the driver of the blue jeep to turn on the right direction indicators and immediately change lanes to the right. At the next reversing traffic light, a red cross will already be on.

Traffic lights to regulate traffic across railroad crossings.

To regulate the movement of vehicles through railway crossings, the Rules provided for three types of traffic lights.

It can be either one red signal flashing at a frequency of once per second.

Or two alternately flashing red signals.

Or, together with two red signals, a white-moon signal can also be installed, which, if turned on, also flashes at a frequency of once per second.

Now let's see what the Rules say about this:

Rules. Section 6. Clause 6.9. A round white-moon flashing signal, located at the railway crossing, allows the movement of vehicles through the crossing. When the flashing white-moon and red signals are turned off, movement is allowed if there is no train (locomotive, railcar) approaching the crossing within sight.

That is, if one red signal flashes or two red signals flash alternately, movement through the crossing is prohibited.

If the white-moon signal flashes, traffic through the crossing is allowed.

If nothing is flashing, traffic across the crossing is also allowed. BUT! It's not just allowed. First, the driver must make sure that there is no (within sight!) of an approaching train. And if there is one, then movement through the crossing is prohibited.

In conclusion, we note that GOST allows the use of conventional traffic lights at a railway crossing.

Four-section traffic light with moon-white signals.

The use of such traffic lights makes it possible to organize conflict-free movement of route vehicles at intersections. We are talking about trams, as well as buses and trolleybuses, if they move along a lane specially allocated for them.

Now all four white-moon signals are turned on at the traffic lights and, therefore, the tram (bus, trolleybus) can move in all directions.

If the lower signal and the upper left signal are on, the tram (bus, trolleybus) is allowed to move to the left.

If the lower signal and the middle upper signal are on, the tram (bus, trolleybus) is allowed to move straight.

If the lower signal and the upper right signal are on, the tram (bus, trolleybus) is allowed to move to the right.

If the lower signal is off, then the tram (bus, trolley bus) is turned on “brick” - entry to the intersection is prohibited.

Now the tram is allowed to go straight or to the left, and we are allowed to go straight or to the right.

Indeed, a conflict-free movement.

Now the tram is allowed to go straight or to the right, and we will stand at the stop line.

Again, no conflict.

But now the tram will stop, and we can go in all directions.

And again, no conflict.