WO2012173372A2 - Système et procédé permettant de ralentir le trafic à une intersection - Google Patents

Système et procédé permettant de ralentir le trafic à une intersection Download PDF

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Publication number
WO2012173372A2
WO2012173372A2 PCT/KR2012/004630 KR2012004630W WO2012173372A2 WO 2012173372 A2 WO2012173372 A2 WO 2012173372A2 KR 2012004630 W KR2012004630 W KR 2012004630W WO 2012173372 A2 WO2012173372 A2 WO 2012173372A2
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WIPO (PCT)
Prior art keywords
pedestrian
vehicle
traffic
traffic light
time
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PCT/KR2012/004630
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English (en)
Korean (ko)
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WO2012173372A3 (fr
Inventor
윤상필
Original Assignee
공간정보기술 주식회사
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Publication of WO2012173372A2 publication Critical patent/WO2012173372A2/fr
Publication of WO2012173372A3 publication Critical patent/WO2012173372A3/fr

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/07—Controlling traffic signals
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/07—Controlling traffic signals
    • G08G1/08—Controlling traffic signals according to detected number or speed of vehicles
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/095—Traffic lights

Definitions

  • the present invention relates to a traffic calming system and method, and more particularly to a traffic calming system and method for reducing the occurrence of traffic accidents in crosswalks.
  • Traffic Calming is a new method of global traffic management that has been deployed in Europe, Germany, the Netherlands, and the United Kingdom since the 1980s. It is a software-based traffic control and hardware-based physical traffic control. There are techniques that combine restraint measures, and the main objectives are the elimination of transit traffic, the suppression of driving speed, and the appropriateness of street parking.
  • a physical deterrence technique such as a speed limit of 30 km / h, a pedestrian road regulation, and a speed bump, road uneven pavement, and narrowing an intersection are used.
  • the traffic calming technique which excludes the passing traffic or suppresses the driving speed, frequently fails to respond to the sudden situation occurring near the crosswalk, leading to an accident.
  • the present invention has been made to solve the above problems, the object of the present invention is to monitor the driving vehicle to pass through the crosswalk and analyze the situation, to operate various safety devices for the situation, unexpected
  • the present invention provides a pedestrian crossing traffic calming system and method for protecting lives from traffic accidents.
  • the pedestrian crossing traffic calming system for achieving the above object, the pedestrian crossing traffic calming system, the vehicle detecting unit for calculating the driving state of the vehicle traveling toward the crosswalk; And a controller controlling at least one traffic light when it is determined that the pedestrian is dangerous based on the driving state of the vehicle calculated by the vehicle detecting unit.
  • the controller may control the vehicle traffic light based on the time at which the vehicle crosswalk is reached.
  • the controller may control the yellow signal of the vehicle traffic light to be turned on before the predetermined time when the crosswalk reaching time of the vehicle is greater than the first reference time and less than the second reference time.
  • the control unit does not change the timing at which the yellow signal of the vehicle traffic light turns off. Further, the degree to which the yellow signal of the vehicle traffic light is earlier than the predetermined time point is proportional to the speed of the vehicle. Is the remaining time until the yellow signal of the vehicle traffic light is turned on, and the second reference time may be the sum of the remaining time until the yellow signal of the vehicle traffic light is turned on and the duration of the yellow signal of the vehicle traffic light.
  • the vehicle detecting unit calculates the 'vehicle speed' and the 'distance between the vehicle and the crosswalk', and the control unit divides the 'distance between the vehicle and the crosswalk' by the 'vehicle speed', thereby reaching the crosswalk arrival time of the vehicle. Can be calculated.
  • the controller may control the pedestrian traffic light based on the braking required time of the vehicle.
  • the controller may be configured to warn the pedestrian of danger or to turn on the red signal of the pedestrian traffic light according to the braking duration of the vehicle.
  • the pedestrian traffic light Can be controlled to extend the red signal lighting.
  • the red signal lighting extension time may be proportional to the braking duration of the vehicle.
  • the controller may calculate the braking required time of the vehicle based on at least one of the speed and the acceleration of the vehicle.
  • the pedestrian crossing traffic calming system according to an embodiment of the present invention, the pedestrian detector for detecting the position of the pedestrian; And a lighting unit, wherein the controller controls the lighting unit to illuminate the pedestrian waiting area when the pedestrian detection unit detects that the pedestrian is waiting for a signal, and detects that the pedestrian crossing is started by the pedestrian detection unit.
  • the lighting unit may be controlled to illuminate the crosswalk.
  • the crosswalk traffic calming method calculates the driving state of the vehicle traveling toward the crosswalk; And controlling a traffic light when it is determined that the pedestrian is dangerous based on the calculated driving state of the vehicle.
  • the present invention it is possible to monitor the pedestrians and driving vehicles that want to cross / pass the crosswalk, analyze the situation, and activate various safety devices for the situation. Compared to the use of techniques and physical traffic suppression techniques, it can proactively cope with safety accidents in crosswalks where pedestrian traffic accidents occur intensively.
  • the budget is significantly reduced compared to the conventional physical traffic restraint technique, and when used in parallel, there is an advantage that a more effective traffic safety device is provided.
  • pedestrians and vehicle drivers which are not implemented in the conventional technical scheme, can proactively cope with, for example, recognizing and avoiding danger situations in advance at crosswalks and major walking points, thereby preventing traffic accidents in advance.
  • FIG. 1 is a view showing the appearance of a pedestrian crossing traffic calming system according to a preferred embodiment of the present invention
  • FIG. 2 is an internal block diagram of the pedestrian crossing traffic calming system shown in FIG.
  • FIG. 3 is a view provided for further explanation of the vehicle detection unit illustrated in FIGS. 1 and 2;
  • FIGS. 1 and 2 are views provided for further explanation of the pedestrian detection unit illustrated in FIGS. 1 and 2;
  • FIG. 5 is a view provided for further explanation of the lighting unit illustrated in FIG. 2, and
  • FIG. 6 is a view provided to explain the pedestrian crossing traffic calming method according to another embodiment of the present invention.
  • FIG. 1 is a view showing the appearance of a pedestrian crossing traffic calming system according to a preferred embodiment of the present invention, a state in which a pedestrian crossing traffic calming system is installed.
  • the pedestrian crossing traffic calming system As shown in FIG. 1, the pedestrian crossing traffic calming system according to the present embodiment is installed at a pedestrian crossing on which traffic lights 21 and 22 are operated, and in addition to the vehicle detecting unit 160 and the pedestrian detecting unit 170. And safety induction devices such as sound output unit 152, electric sign 153, and warning light 154.
  • FIG. 2 is an internal block diagram of the crosswalk traffic calming system shown in FIG. 1.
  • the pedestrian crossing traffic calming system includes a traffic light controller 10, a vehicle traffic light 21, a pedestrian traffic light 22, a traffic signal processor 110, and a time signal receiver 120. ), An illumination sensor 130, a control unit 140, a safety induction unit 150, a vehicle detection unit 160, and a pedestrian detection unit 170.
  • the safety induction part 150 includes an illumination part 151, an acoustic output part 152, an electric sign 153, and a warning light 154.
  • the traffic light controller 10 generates a traffic signal control signal for controlling the traffic signal display of the vehicle traffic light 21 and the pedestrian traffic light 22.
  • the traffic signal processor 110 transmits the traffic signal control signal generated by the traffic light controller 10 to the controller 140, and processes the traffic signal control signal under the control of the controller 140 to process the traffic signal 21 and the vehicle traffic light 21. Pass each to the pedestrian traffic lights 22.
  • the traffic signal processor 110 may advance the yellow signal lighting time of the vehicle traffic light 21 or extend the red signal lighting of the pedestrian traffic light 22, all of which are performed under the control of the controller 140. do.
  • the time signal receiver 120 is a means for synchronizing the times of the traffic light controller 10 and the controller 140.
  • the time signal receiver 120 receives the time signal and transmits the time signal to the controller 140.
  • control unit 140 calculates the cycle of the traffic signal (Cycle), the cycle length (Cycle Length), the present (Phase) and the present rate (Split), etc., hourly, daily, weekly, monthly, seasonal It is possible to keep the changing appearance the same as the traffic light controller 10, the operation time of the vehicle traffic light 21 and the pedestrian traffic light 22 is the traffic signal of the traffic signal processing unit 110 under the control of the controller 140 It is not disturbed by control signal processing.
  • the vehicle detecting unit 160 is installed at the main mount of the traffic lights 21 and 22 to monitor a certain area in front of the crosswalk in a radar manner and drive toward the crosswalk. While detecting the traffic of the vehicle to calculate the 'speed of the vehicle' and 'distance between the vehicle and the crosswalk' and transmits to the controller 140.
  • the pedestrian detector 170 monitors the entry / exit of the pedestrian at both ends of the crosswalk and transmits the entry / exit of the pedestrian to the controller 140.
  • FIG. 1 and 4 illustrate the pedestrian sensing unit 170 of the air installation type, which is merely an example for convenience of description. Of course, depending on the road conditions, it is possible to replace the ground-mounted.
  • the illuminance sensor 130 measures illuminance on the pedestrian crossing, in order to detect a poor vision due to bad weather and bad weather.
  • the lighting unit 151 is a means for illuminating a pedestrian crossing when it is detected by the illuminance sensor 130, and is controlled by the controller 140.
  • the controller 140 drives the lighting unit 151.
  • the controller 140 may drive the lighting unit 151 only when the green signal is turned on at the pedestrian traffic light 22 in a poor visibility state, thereby reducing energy consumption.
  • the controller 140 may drive the lighting unit 151 when the pedestrian entrance is detected by the pedestrian detection unit 170 in a poor visibility state to promote the safety of pedestrians.
  • the controller 140 1) when the pedestrian detection unit 170 detects that the pedestrian is waiting for a signal, the lighting unit (1) to illuminate the pedestrian waiting area a few seconds before the green signal of the pedestrian traffic light 22 lights up. 151 controls the driver of the vehicle to recognize the waiting condition of the pedestrian, and 2) when it is detected that the pedestrian crossing is started by the pedestrian detector 170, the lighting unit 151 is illuminated to illuminate the crosswalk instead of the pedestrian waiting area. By controlling, the driver of the vehicle can clearly recognize that the pedestrian has entered the crosswalk.
  • the control unit 140 1) when the pedestrian detection unit 170 detects that the pedestrian is waiting for a signal, the pedestrian waiting area is illuminated with higher illumination than the surrounding road, but crosswalk is low light
  • the lighting unit 151 may be controlled to illuminate the light
  • the pedestrian waiting area may control the lighting unit 151 so as to illuminate the pedestrian crossing at low light but the crosswalk may be illuminated at high illumination.
  • the controller 140 controls the lighting unit 151 to illuminate the pedestrian waiting area with higher illumination.
  • the sound output unit 152 is a means for providing various types of sound information to pedestrians, and the provided sound information includes sound information for danger warning in addition to traffic signal information for the visually impaired.
  • the electronic sign 153 is used to warn the driver of the vehicle of danger, as well as displaying traffic conditions and safe driving system contents. That is, the controller 140 may warn the driver of the vehicle through the electric sign 153 to warn the user of the contents such as "deceleration”, "stop in front of the pedestrian crossing", and "during pedestrian crossing.”
  • the beacon 154 is a means used to warn of danger to both the driver and the pedestrian of the vehicle and is driven by the controller 154.
  • the controller 140 controls the traffic signal processing unit 110 to control the vehicle traffic light 21 and / or the pedestrian traffic light.
  • the traffic signal at 22 is changed.
  • control unit 140 may warn the driver and / or the pedestrian through the safety guide unit 150.
  • FIG. 6 is a view provided to explain the pedestrian crossing traffic calming method according to another embodiment of the present invention.
  • the first control unit 140 as shown in Figure 6, the lighting, the yellow signal of calculating the "yellow signal remaining time (t 1) to light up, the vehicle light (21) and (S210), the vehicle light (21)
  • the holding time t 2 ′ is calculated (S220).
  • 'Remaining time t 1 until the yellow signal is turned on' and 'yellow signal lighting holding time t 2 ' indicate that the control unit 140 receives the traffic signal received from the traffic light controller 10 through the traffic signal processing unit 110. It can be calculated from the cycle, the cycle length, the phase and the split.
  • the vehicle detection unit 160 calculates the distance (L) between the vehicle and the crosswalk along with the speed (v) of the vehicle traveling toward the crosswalk (S230, S240).
  • the 'vehicle speed v' and 'distance L between the vehicle and the crosswalk' calculated in steps S230 and S240 are transmitted to the controller 140.
  • the controller 140 may control the vehicle traffic light ( The traffic signal processing unit 110 is controlled so that the yellow signal at 21 is turned on early (S270).
  • 't 1 ' is the 'remaining time until the yellow signal is turned on' of the vehicle traffic light 21 calculated in step S210
  • 't 2 ' is the 'yellow signal lighting holding time of the vehicle traffic light 21 calculated in step S220 'Means.
  • the yellow signal of the vehicle traffic light 21 is turned on early to stop the vehicle traveling toward the crosswalk before entering the crosswalk.
  • step S270 even if the yellow signal of the vehicle traffic light 21 is turned on early in step S270, the point of time when the yellow signal is turned off does not change. That is, since the lighting time of the yellow signal is only long due to the early lighting of the yellow signal at step S270, the subsequent traffic signal system is not disturbed by the step S270.
  • the early lighting timing by the step S270 is determined by the controller 140. That is, the controller 140 may advance the time of lighting the yellow signal by '1 second' or '2 seconds'.
  • the controller 140 may refer to the speed v of the vehicle. Specifically, the degree of advancement at the time of turning on the yellow signal may be proportional to the speed v of the vehicle. In other words, the larger the speed v of the vehicle (the faster the vehicle), the earlier the timing of the early lighting is much earlier than the predetermined time point, and the smaller the speed v of the vehicle (the slower the vehicle), the earlier the timing of the early lighting time than the predetermined time point. It can be implemented to be less advanced.
  • the controller 140 calculates a braking time t 4 of the vehicle based on the speed v of the vehicle at step S280.
  • the vehicle braking time t 4 may be calculated by referring to a table that maps a relationship between the vehicle speed v and the vehicle braking time t 4 .
  • the braking time t 4 of the vehicle is proportional to the speed v of the vehicle. That is, the greater the speed (v) of the vehicle (the faster the vehicle), the longer the braking time (t 4 ) of the vehicle, and the smaller the speed (v) of the vehicle (the slower the vehicle) '
  • the braking time t 4 of the vehicle is short.
  • step S280 based on the 'vehicle speed (v)', to calculate the 'braking time (t 4 ) of the vehicle' is only an example of implementation, it is possible to modify.
  • the vehicle may be implemented to calculate the braking time t 4 of the vehicle by further referring to the vehicle acceleration a.
  • ) for the 'braking time of the vehicle (t 4 )' and 't 1 + t 2 ' calculated in step S280 is the safety factor (s).
  • the control unit 140 controls the safety induction unit 150 to warn the pedestrians a danger (S300).
  • 't 1 ' is the 'remaining time until the yellow signal is turned on' of the vehicle traffic light 21 calculated in step S210
  • 't 2 ' is the 'yellow signal lighting holding time of the vehicle traffic light 21 calculated in step S220 'Means.
  • Safety factor (s) is generally set to about 1-2 seconds in consideration of the characteristics of the road (downhill road, uphill road, straight road, curved road). The smaller the safety factor (s) is, the safer it is.
  • the safety factor (s) may be set in consideration of the weather (sunny, cloudy, rainfall, snowfall), the current time (daylight, daytime, after sunset, night), in addition to the characteristics of the road, in this case, the safety factor ( s) can be changed automatically in real time according to the situation.
  • the safety guiding unit 150 warns the pedestrians of 'pre-start' or 'unauthorized crossing beyond the crosswalk'. .
  • Danger warning through the safety induction unit 150 in step S300 it is possible through a sound warning by the sound output unit 152, a text warning by the electric sign 153, a visual warning through the warning light 154.
  • the control unit 140 controls the traffic signal processing unit 110 so that the red signal lighting of the pedestrian traffic light 22 is extended (S320).
  • the red signal lighting extension of the pedestrian traffic light 22 signifies a delay of the green signal lighting of the pedestrian traffic light 22.
  • the red signal lighting of the pedestrian traffic light 22 is extended to delay the time at which the pedestrian enters the crosswalk.
  • the red signal of the pedestrian traffic light 22 is turned on by the step S320 and the green signal is delayed lit, the time of turning off the green signal does not change. Since the green signal lighting time is reduced only by the lighting time of the red signal lengthened by the red signal lighting extended by the step S320, the subsequent traffic signal system is not disturbed by the step S320.
  • the lighting extension time by the step S320 is determined by the controller 140.
  • the controller 140 may refer to the vehicle braking time t 4 calculated in operation S280.
  • the red signal lighting extension time may be proportional to the vehicle braking time t 4 . That is, the larger the braking duration (t 4 ) of the vehicle (the longer the vehicle takes to stop), the longer the red signal lighting extension time is, and the smaller the braking duration (t 4 ) of the vehicle is. (The less time the vehicle takes to stop), the longer the red signal lighting extension time can be implemented.
  • control unit 140 constantly monitors the normal operation of the components of the pedestrian crossing traffic calming system, and if it is determined that an abnormality has occurred, notify the situation to the monitoring system of the control center through the local repeater, promptly, Action may be taken to enable field action.
  • the lighting unit 1151 is implemented to include a plurality of light source elements, if it is preferable to configure such that the reduction rate of the total light output does not exceed 20% even if one or more accidental failures of the individual light source elements occurs, If the reduction rate exceeds 20%, the control unit 140 may be notified of the situation to the monitoring system of the control center, so that prompt on-site action may be possible.
  • the technical idea of the present invention can be applied to a computer-readable recording medium containing a computer program for performing the functions of the apparatus and method according to the present embodiment.
  • the technical idea according to various embodiments of the present disclosure may be implemented in the form of computer readable codes recorded on a computer readable recording medium.
  • the computer-readable recording medium can be any data storage device that can be read by a computer and can store data.
  • the computer-readable recording medium may be a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical disk, a hard disk drive, or the like.
  • the computer-readable code or program stored in the computer-readable recording medium may be transmitted through a network connected between the computers.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

La présente invention a trait à un système et à un procédé qui permettent de ralentir le trafic à une intersection. Le système permettant de ralentir le trafic à une intersection comprend : une unité de détection de véhicule servant à calculer les conditions de conduite d'un véhicule roulant en direction d'une intersection ; et une unité de commande conçue pour commander les feux tricolores s'il est établi que des piétons sont en danger sur la base des conditions de conduite du véhicule calculées par l'unité de détection de véhicule. Ainsi, puisque différents dispositifs de sécurité adaptés à la situation sont actionnés grâce à la surveillance et à l'analyse des piétons et des véhicules circulants qui croisent/dépassent une intersection, les piétons peuvent affronter activement des incidents liés à la sécurité à une intersection où des accidents de la circulation impliquant des piétons se produisent fréquemment, par rapport à une technique de suppression réglementaire typique et à une technique de suppression de trafic physique pour la sécurité routière.
PCT/KR2012/004630 2011-06-16 2012-06-12 Système et procédé permettant de ralentir le trafic à une intersection WO2012173372A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2011-0058191 2011-06-16
KR20110058191 2011-06-16
KR10-2011-0122462 2011-11-22
KR1020110122462A KR101145955B1 (ko) 2011-06-16 2011-11-22 횡단보도 교통 평온화 시스템 및 방법

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WO2012173372A2 true WO2012173372A2 (fr) 2012-12-20
WO2012173372A3 WO2012173372A3 (fr) 2013-03-28

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CN106710260A (zh) * 2017-03-01 2017-05-24 青岛海澄知识产权事务有限公司 一种行人过马路警示方法
US11763677B2 (en) 2020-12-02 2023-09-19 International Business Machines Corporation Dynamically identifying a danger zone for a predicted traffic accident

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KR101338916B1 (ko) * 2012-11-09 2013-12-09 한국건설기술연구원 횡단보도 조명 장치 및 방법
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KR101988002B1 (ko) * 2017-06-07 2019-06-11 안세찬 횡단보도 안전 시스템
KR102034285B1 (ko) * 2018-11-27 2019-10-18 주식회사 제이씨레이다 감지 장치와 경보 수단을 이용한 안전 보행 시스템
KR20220014642A (ko) * 2020-07-29 2022-02-07 쓰리엠 이노베이티브 프로퍼티즈 캄파니 보행자 안전 지원 시스템 및 상기 보행자 안전 지원 시스템을 이용하여 보행자의 안전을 지원하는 방법
KR102638637B1 (ko) 2022-12-06 2024-02-20 제주특별자치도 스마트 보행 안전 시스템

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Publication number Priority date Publication date Assignee Title
CN106710260A (zh) * 2017-03-01 2017-05-24 青岛海澄知识产权事务有限公司 一种行人过马路警示方法
US11763677B2 (en) 2020-12-02 2023-09-19 International Business Machines Corporation Dynamically identifying a danger zone for a predicted traffic accident

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KR101145955B1 (ko) 2012-05-15

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