CN103077608A - Method for obtaining evidence of behavior of intentionally running yellow light of driver - Google Patents

Abstract

A method for obtaining evidence of whether a driver deliberately runs a yellow light, including prompting stop markings, traffic signs and an electronic capture system, setting a prompt stop marking line and a traffic sign behind the stop line, and adding a forensic collection system to the electronic capture system During the yellow light, the rear view camera of the position of the vehicle is set, and a virtual detection line is set in the rear view camera; during the inspection of the yellow light at the signal intersection, the pictures or videos of all vehicles passing the stop line and the virtual detection line are captured and recorded. Storage, used to identify whether there is intentional yellow light driving behavior. The electronic capture system captures all vehicles passing the stop line and virtual detection line. "; otherwise, identify it as "running a yellow light unintentionally". The invention only needs to add a small amount of traffic management facilities, is easy to operate, requires less engineering investment, can create good economic and social benefits, and has broad popularization and application value.

Description

A method for obtaining evidence of whether the driver deliberately ran a yellow light

technical field

The invention relates to traffic science, in particular to a method for obtaining evidence of whether a driver deliberately runs a yellow light.

Background technique

According to the "Regulations for the Implementation of the Traffic Safety Law of the People's Republic of China", "When the yellow light is on, vehicles that have crossed the stop line can continue to pass." Based on this, some local law enforcement agencies will "if the yellow light is on, vehicles that have not crossed the stop line "Motor vehicles still continue to pass" was judged as a traffic violation, which aroused widespread controversy. The focus of the debate focused on "whether it is difficult to judge whether it is subjective and intentional to run a yellow light."

Some intersections do not have a countdown timer for the green light, and they will not flash when the green light turns to amber. The driver cannot be sure when the yellow light will turn on. Sudden braking when the amber light is on can easily cause rear-end collisions, and the presence of sudden braking cannot make the vehicle safe. When parking within the stop line. Therefore, it is biased to judge running a yellow light as a traffic violation without analyzing this problem from a humane perspective.

It is based on this that this method proposes a method of obtaining evidence "whether the behavior of driving a yellow light intentionally" to help the road traffic law enforcement department humanize law enforcement, and at the same time eliminate the misunderstanding of the majority of drivers and dispel the fluke mentality of some drivers, ensuring that Traffic operation safety at signalized intersections and improvement of their traffic efficiency.

Contents of the invention

The purpose of the present invention is to provide a method for identifying whether the driver is suspected of deliberately running a yellow light by obtaining evidence of whether the vehicle is in a position that is safe to stop during the yellow light.

The object of the present invention is achieved like this: a kind of method for obtaining evidence whether the driver runs the yellow light intentionally, comprises prompting stop marking line, traffic sign and electronic capture system, a prompting stop marking line and a piece of traffic sign are set behind the stop line, In the electronic capture system, add a rear view camera of the position of the vehicle during the yellow light for evidence collection, and set a virtual detection line in the rear view camera; during the inspection of the yellow light at the signalized intersection, capture or record, all passing the stop line and The pictures or videos of vehicles on the virtual detection line are stored and used to identify whether there is intentional yellow light driving behavior. The electronic capture system captures all vehicles passing the stop line and the virtual detection line. It can be judged as "intentionally running a yellow light"; otherwise, it can be identified as "unintentional running a yellow light".

The present invention also has the following features:

1. The virtual detection line for setting the rear view camera is:

Set a virtual detection line for the rear-view camera at a distance S behind the stop line to obtain evidence whether the vehicle behind the detection line has intentional driving behavior of running a yellow light; the distance S needs to meet certain requirements, and the specific calculation is as follows:

$\mathrm{<span\; class="notranslate">\; S</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; v</span>}<span\; class="notranslate">\; \&times;</span>{\mathrm{<span\; class="notranslate">\; t</span>}}_{\mathrm{<span\; class="notranslate">\; a</span>}}<span\; class="notranslate">\; +</span>\frac{{\mathrm{<span\; class="notranslate">\; v</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}}{\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; a</span>}}<span\; class="notranslate">\; ,</span>$ $\mathrm{<span\; class="notranslate">\; v</span>}<span\; class="notranslate">\; =</span>\frac{\mathrm{<span\; class="notranslate">\; V</span>}}{\mathrm{<span\; class="notranslate">\; 3.6</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span>$

In the formula, S——the minimum distance (m) from when the driver is ready to brake when he sees the yellow light to a complete stop;

v——the initial braking speed of the vehicle, if it is a speed-limited road, take the speed corresponding to the speed limit value (m/s);

a——vehicle deceleration, the middle value is 3.5m/s ² (m/s ² );

t _a ——the driver's reaction time, take 1.0(s);

V——Vehicle running speed, take the speed limit value (Km/h);

Determine and set the position of the virtual detection line of each entrance rear-view camera according to the speed limit value of each entrance road section and the above formula.

2. The parking reminder markings and signs are set as

Because there is a blind spot in the driver's front view, the driver of the vehicle whose head is at S can only see the area before S'; therefore, in order to remind the vehicle whose head is at S and beyond to brake and stop during the yellow light, the parking prompt line needs to be set The driver can only see it at S′; in order for the driver to understand the function of the parking prompt line, it is necessary to set up a traffic sign on the roadside at the same position as the parking prompt line for explanation; use a yellow dotted line;

Blind spot distance in front of the vehicle l,

When the speed limit is below 30Km/h, take l=3.0m;

When it is higher than 30Km/h, the front blind spot distance l increases by 1.0m for every 10Km/h increase;

3. The time setting of the yellow light at the inspection signal intersection,

For a vehicle that "runs the yellow light unintentionally", whether it can pass the stop line smoothly during the yellow light period depends on whether the time setting of the yellow light is reasonable, that is, the requirement L, see formula (2), must not be less than S

L=v×tL _a (2)

In the formula, L——the maximum distance (m) that the vehicle can completely pass the stop line while maintaining a constant speed during the yellow light period;

L _a —— vehicle length, take 5.0 (m);

v——Vehicle running speed, take the speed corresponding to the speed limit value (m/s);

t——Phase conversion time, that is, the yellow light time (s);

Simultaneous formulas (1) and (2), when S≤L, get:

$\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; \&Greater\; Equal;</span>{\mathrm{<span\; class="notranslate">\; t</span>}}_{\mathrm{<span\; class="notranslate">\; a</span>}}<span\; class="notranslate">\; +</span>\frac{\mathrm{<span\; class="notranslate">\; v</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; a</span>}}<span\; class="notranslate">\; +</span>\frac{{\mathrm{<span\; class="notranslate">\; L</span>}}_{\mathrm{<span\; class="notranslate">\; a</span>}}}{\mathrm{<span\; class="notranslate">\; v</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 3</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; .</span>$

4. If a 360-degree panoramic surveillance camera is used at an intersection to collect traffic violation evidence, no additional electronic equipment is required; if the video recorded by the 360-degree panoramic surveillance camera can clearly see that the vehicle has passed the stop line after the virtual detection line, it can be judged as " Intentionally running a yellow light", otherwise, it can be identified as "unintentionally running a yellow light".

The invention discloses a method for obtaining evidence of whether a driver intentionally runs a yellow light. Whether the vehicle is in a safe stop in time during the yellow light period is obtained for evidence, so as to identify whether the driver is suspected of intentionally running a yellow light. Its superiority is reflected in: it can help road traffic law enforcement departments humanize law enforcement, eliminate the misunderstanding of the majority of drivers and dispel the fluke psychology of some drivers, ensure the safety of traffic at signalized intersections and improve their traffic efficiency. The invention only needs to add a small amount of traffic management facilities, is easy to operate, requires less engineering investment, can create good economic and social benefits, and has broad popularization and application value.

Description of drawings

Fig. 1 is a design schematic diagram of the present invention.

Detailed ways

The present invention will be further described below with examples in conjunction with the accompanying drawings.

Example 1:

In conjunction with Fig. 1, the present invention provides a method for obtaining evidence of whether the driver deliberately ran a yellow light, setting a marking line (yellow dotted line) and a piece of traffic sign to prompt the driver to stop during the yellow light behind the stop line, electronically snapping at each entrance A rear view camera is added to the system to detect the position of the vehicle during the yellow light period (if the intersection uses a 360-degree panoramic surveillance camera for traffic violation evidence collection, no additional electronic equipment is required), and a virtual detection line is set in the rear view camera . During the yellow light period, the electronic capture system captures all vehicles passing the stop line and the virtual detection line. If a vehicle has two snapshots at the same time (or the 360-degree panoramic surveillance camera records video, it can be clearly seen that the vehicle has been passing through the virtual detection line stop line), it can be judged as "intentional yellow light driving behavior", otherwise, it can be identified as "unintentional yellow light driving behavior".

Described a kind of method for obtaining evidence whether the driver deliberately runs the yellow light, the steps are as follows:

Step 1: Set the virtual detection line of the rear view camera

Set up a rearview camera virtual detection line at a distance S behind the stop line to obtain evidence whether the vehicle behind the detection line has intentional driving behavior of running a yellow light. The distance S needs to meet certain requirements, and the specific calculation is as follows:

$\mathrm{<span\; class="notranslate">\; S</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; v</span>}<span\; class="notranslate">\; \&times;</span>{\mathrm{<span\; class="notranslate">\; t</span>}}_{\mathrm{<span\; class="notranslate">\; a</span>}}<span\; class="notranslate">\; +</span>\frac{{\mathrm{<span\; class="notranslate">\; v</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}}{\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; a</span>}}<span\; class="notranslate">\; ,</span>$ $\mathrm{<span\; class="notranslate">\; v</span>}<span\; class="notranslate">\; =</span>\frac{\mathrm{<span\; class="notranslate">\; V</span>}}{\mathrm{<span\; class="notranslate">\; 3.6</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span>$

In the formula, S——the minimum distance (m) from when the driver is ready to brake when he sees the yellow light to a complete stop;

v——the initial braking speed of the vehicle, if it is a speed-limited road, generally the speed corresponding to the speed limit value (m/s) can be taken;

a—vehicle deceleration. According to relevant research, the average deceleration of a general vehicle is 3.0-4.0m/s ² , in order to make the vehicle stop smoothly and avoid rear-end collision caused by sudden braking, the median value is 3.5m/s ² (m/s ² );

t _a ——the reaction time of the driver, according to the relevant research, it is generally between 0.7 and 1.0s. In view of the large difference in the reaction time of different people, it is recommended to take 1.0(s);

V——Vehicle running speed, which can be the speed limit value (Km/h).

If the distance between the front of the vehicle and the stop line is less than S, from the perspective of traffic safety, these vehicles should be allowed to continue to pass, but they will run through the yellow light. These vehicles can be identified as "unintentionally running the yellow light"; If the distance between the lines is greater than or equal to S and the vehicle continues to run the yellow light, it can be identified as "deliberately running the yellow light" and should be punished.

Determine and set the position of the virtual detection line of the rearview camera of each entrance road according to the speed limit value of each entrance road section and the above formula. If the speed limit of the entrance section is 30Km/h, then S=18.25m; if the speed limit of the entrance section is 40Km/h, then S=28.75m; if the speed limit of the entrance section is 50Km/h, then S=41.45m; 60Km/h, then S=56.35m.

Step 2: Set parking reminder lines and signs

Because there is a blind spot in the field of view of the driver's head, the driver of the vehicle at S can only see the place before S' (seeing accompanying drawing 1). Therefore, in order to remind the front of the car to brake and stop during the yellow light period of the vehicle at S and beyond, the parking prompt line needs to be set at S' to be seen by the driver. In order for the driver to understand the function of the stop prompt line, it is necessary to set up a traffic sign on the roadside at the same position as the stop prompt line to explain. Because the stop prompt line is only effective during the yellow light period, it is recommended to use yellow dotted lines.

The distance l of the blind spot in front of the front of the vehicle (see Figure 1) varies greatly depending on different models and drivers of different heights. When the vehicle is stationary, l is mostly concentrated at 1.5-3.0m. It is more appropriate to take l=3.0m. At the same time, as the speed of the vehicle increases, the driver's field of vision will become narrower, and the distance of the blind spot in front of the vehicle will increase. Therefore, it is suggested that when the speed limit is below 30Km/h, take l=3.0m; when it is higher than 30Km/h, the distance l of the blind spot in front of the front of the vehicle increases by 1.0m for every 10Km/h increase.

If the speed limit of the entrance section is 30Km/h, the parking prompt markings and signs are set at 15.25m; if the entrance section speed limit is 40Km/h, the parking prompt markings and signs are set at 24.75m; If the speed limit of the road section is 50Km/h, the parking prompt markings and signs are set at 46.45m; if the speed limit of the entrance section is 60Km/h, the parking prompt markings and signs are set at 50.35m.

Step 3: Check the time setting of yellow lights at signalized intersections

For a vehicle that "runs a yellow light unintentionally", whether it can pass the stop line smoothly during the yellow light period depends on whether the yellow light time setting is reasonable, that is, it is required that L (see formula (2)) must not be less than S. If the time setting of the yellow light is unreasonable, the situation of "running the red light" from "running the yellow light unintentionally" will occur, that is, when S>L occurs.

L=v×tL _a (2)

In the formula, L——the maximum distance (m) that the vehicle can completely pass the stop line while maintaining a constant speed during the yellow light period;

L _a ——vehicle length, the length of a car is generally 4.0-5.0m, and 5.0(m) is recommended;

v——Vehicle running speed, if it is a speed limit road, generally the speed corresponding to the speed limit value (m/s) can be taken;

t——Phase conversion time, that is, the yellow light time (s).

Simultaneous formulas (1) and (2), when S≤L, can be deduced:

$\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; \&Greater\; Equal;</span>{\mathrm{<span\; class="notranslate">\; t</span>}}_{\mathrm{<span\; class="notranslate">\; a</span>}}<span\; class="notranslate">\; +</span>\frac{\mathrm{<span\; class="notranslate">\; v</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; a</span>}}<span\; class="notranslate">\; +</span>\frac{{\mathrm{<span\; class="notranslate">\; L</span>}}_{\mathrm{<span\; class="notranslate">\; a</span>}}}{\mathrm{<span\; class="notranslate">\; v</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 3</span>}<span\; class="notranslate">\; )</span>$

Taking urban roads with a speed limit of 30Km/h as an example, the yellow light time at signal intersections is required to be not less than 2.790s; when the speed limit is increased to 40Km/h, the yellow light time is not less than 3.037s; , the yellow light time is not less than 3.344s; when the speed limit is increased to 60Km/h, the yellow light time is not less than 3.681s. It can be seen that when the speed limit is not higher than 40Km/h, the yellow light time of 3s must be guaranteed; when the speed limit is higher than 40Km/h, the yellow light time of more than 3s must be guaranteed, and the yellow light time of 4s is recommended. Otherwise, there will be a situation where the vehicle of "running a yellow light unintentionally" evolves into a situation of "running a red light".

Step 4: Start the electronic capture system (360-degree panoramic surveillance camera) during the yellow light period

Capture (or record) all vehicle pictures (or videos) passing the stop line and virtual detection line during the yellow light and store them in order to identify whether there is intentional yellow light driving behavior.

Step 5: Identify whether the driver deliberately ran the yellow light

According to the captured vehicle pictures (or videos), if a vehicle has two captured pictures at the same time (or the video recorded by the 360-degree panoramic surveillance camera can clearly see that it has passed the stop line after the virtual detection line), it can be judged as " Intentionally running a yellow light", otherwise, it can be identified as "unintentionally running a yellow light".

Claims (4)

1. A method for obtaining evidence of whether a driver deliberately runs a yellow light, comprising prompting stop markings, traffic signs and an electronic capture system, characterized in that: a prompt stop marking and a traffic sign are set behind the stop line, and electronically capture A rear view camera is added to the system to obtain evidence of the position of the vehicle during the yellow light, and a virtual detection line is set in the rear view camera; during the inspection of the yellow light at the signalized intersection, capture or record, all passing the stop line and the virtual detection line The vehicle pictures or videos are stored and used to identify whether there is intentional yellow light driving behavior. The electronic capture system captures all vehicles that pass the stop line and the virtual detection line. It is "deliberately running a yellow light"; otherwise, it is identified as "unintentionally running a yellow light". 2. A method for obtaining evidence whether the driver deliberately runs a yellow light according to claim 1, characterized in that: The virtual detection line for setting the rearview camera is: Set a virtual detection line for the rear-view camera at a distance S behind the stop line to obtain evidence whether the vehicle behind the detection line has intentional driving behavior of running a yellow light; the distance S needs to meet certain requirements, and the specific calculation is as follows: $\mathrm{<span\; class="notranslate">\; S</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; v</span>}<span\; class="notranslate">\; \&times;</span>{\mathrm{<span\; class="notranslate">\; t</span>}}_{\mathrm{<span\; class="notranslate">\; a</span>}}<span\; class="notranslate">\; +</span>\frac{{\mathrm{<span\; class="notranslate">\; v</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}}{\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; a</span>}}<span\; class="notranslate">\; ,</span>$ $\mathrm{<span\; class="notranslate">\; v</span>}<span\; class="notranslate">\; =</span>\frac{\mathrm{<span\; class="notranslate">\; V</span>}}{\mathrm{<span\; class="notranslate">\; 3.6</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span>$ In the formula, S——the minimum distance (m) from when the driver is ready to brake when he sees the yellow light to a complete stop; v——the initial braking speed of the vehicle, if it is a speed-limited road, take the speed corresponding to the speed limit value (m/s); a——vehicle deceleration, the middle value is 3.5m/s ² (m/s ² ); t _a ——the driver's reaction time, take 1.0(s); V——Vehicle running speed, take the speed limit value (Km/h); Determine and set the position of the virtual detection line of each entrance rear-view camera according to the speed limit value of each entrance road section and the above formula. 3. A method for obtaining evidence whether the driver deliberately runs a yellow light according to claim 1, characterized in that: The described setting parking reminder markings and signs are Because there is a blind spot in the driver's front view, the driver of the vehicle whose head is at S can only see the area before S'; therefore, in order to remind the vehicle whose head is at S and beyond to brake and stop during the yellow light, the parking prompt line needs to be set The driver can only see it at S′; in order for the driver to understand the function of the parking prompt line, it is necessary to set up a traffic sign on the roadside at the same position as the parking prompt line for explanation; use a yellow dotted line; Blind spot distance in front of the vehicle l, When the speed limit is below 30Km/h, take l=3.0m; When it is higher than 30Km/h, the front blind spot distance l increases by 1.0m for every 10Km/h increase. 3. A method for obtaining evidence of whether a driver intentionally runs a yellow light according to claim 1, characterized in that: the time setting for inspecting the yellow light at a signalized intersection, For a vehicle that "runs the yellow light unintentionally", whether it can pass the stop line smoothly during the yellow light period depends on whether the time setting of the yellow light is reasonable, that is, the requirement L, see formula (2), must not be less than S L=v×tL _a (2) In the formula, L——the maximum distance (m) that the vehicle can completely pass the stop line while maintaining a constant speed during the yellow light period; L _a —— vehicle length, take 5.0 (m); v——Vehicle running speed, take the speed corresponding to the speed limit value (m/s); t——Phase conversion time, that is, the yellow light time (s); Simultaneous formulas (1) and (2), when S≤L, get: $\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; \&Greater\; Equal;</span>{\mathrm{<span\; class="notranslate">\; t</span>}}_{\mathrm{<span\; class="notranslate">\; a</span>}}<span\; class="notranslate">\; +</span>\frac{\mathrm{<span\; class="notranslate">\; v</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; a</span>}}<span\; class="notranslate">\; +</span>\frac{{\mathrm{<span\; class="notranslate">\; L</span>}}_{\mathrm{<span\; class="notranslate">\; a</span>}}}{\mathrm{<span\; class="notranslate">\; v</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 3</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; .</span>$ 4. a kind of method for obtaining evidence according to claim 1 whether the driver deliberately runs a yellow light, is characterized in that: the intersection adopts a 360-degree panoramic surveillance camera to carry out traffic violation evidence collection, and then does not need to increase electronic equipment; 360-degree panoramic surveillance If the video recorded by the camera can clearly see that the vehicle has passed the stop line after the virtual detection line, it can be judged as "intentionally running a yellow light", otherwise, it can be identified as "unintentional running a yellow light".

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