• Title/Summary/Keyword: Pedestrian Crosswalk

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Estimation of Crosswalk Pedestrian Volume at Signalized Intersection (신호교차로 횡단보도 보행량 추정에 관한 연구)

  • 하태준;김정현;박제진
    • Journal of Korean Society of Transportation
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    • v.21 no.3
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    • pp.121-134
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    • 2003
  • Forecasting models for crosswalk pedestrian volume, which consider safety of crosswalks and good traffic operation accidents, have been established in order to reduce total number of crosswalk pedestrian accidents. However, the existing models did not include pedestrian volume which seemed to be very significant in the forecasting models because there were no pedestrian volume related data and no methods of estimating pedestrian volume. This paper presents estimating models for the total number of trips, which are produced in zone i and attracted to zone j, and a process of estimating pedestrian volume in the goal year. First of all, the estimating models included the characteristics of land-use around a signalized intersection and the crosswalk pedestrian volume as factors. Secondly, the estimated crosswalk pedestrian volume was distributed to the crosswalk pedestrian volume each path in the basic year by friction factors of Gravity Model, adjustment factors for area and ratio of pedestrian volume who moved diagonally at the crosswalk. Thirdly, the estimating models of crosswalk pedestrian volume in the goal year were presented by using the distributed crosswalk pedestrian volume.

The Setting in the Range of Traffic Accident on the Crosswalk (횡단보도의 교통사고 범위 설정에 관한 연구)

  • Kim, Jang-Wook;Jung, Min-Young;Kang, Dong-Soo;Hong, Ji-Yeon;Lee, Soo-Beom
    • Journal of the Korean Society of Safety
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    • v.26 no.4
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    • pp.120-126
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    • 2011
  • Under the current law or system, the range of traffic accident on the crosswalk does not reflect the characteristics of traffic accident and the pedestrian's walking pattern. Thus, this study conducted a video recording survey on the 250 spots which are high to traffic accident rate of pedestrian-vehicle to reset the range of traffic accident on or near the crosswalk considering the characteristics of traffic accident and the pedestrian's walking pattern. Based on the collected data through a video recording survey, this study analyzed the pattern of pedestrians and extracted the variables influenced in the pedestrian's walking pattern. After conducting the regression analysis, this study made the model of measuring the range of traffic accident on the crosswalk. Through all processes these, this study reset the range of traffic accident on the crosswalk which could minimize the disadvantages of pedestrian when they have an accident on the crosswalk and ensure the right of way of pedestrian.

Pedestrian Crosswalk Design based on the Assessment of Driver Recognition (운전자 인지특성 분석을 통한 횡단보도 디자인 연구)

  • Lee, Juyoung
    • Journal of Environmental Science International
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    • v.29 no.4
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    • pp.361-369
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    • 2020
  • With the increasing role of environmental design in promoting urban safety, new design attempts have been made to improve pedestrian safety in crosswalks. This study proposes an evidence-based design solution for improving crosswalk function by conducting simulations and field experiments. Drivers with more than one-year driving experience participated in this study. Four different crosswalk design patterns were prepared: (1) a zebra pattern, (2) zebra pattern with colored triangles, (3) 3D pattern, and (4) art pattern with unique colors and design. The results supported that the zebra pattern with colored triangles could be the most effective solution for crosswalk design by increasing visibility, attention, deceleration, and landscape aesthetics. This study provided objective data to support the performance of various crosswalk patterns and suggested the need to reevaluate the present crosswalk design guidelines.

Effects of Wireless Controlled In-Pavement Flashing Light System at Pedestrian Crosswalk (횡단보도에서 무선제어가 가능한 도로표지병 도입효과)

  • Jin, Heui Chae;Lee, Jong Ho;Choi, Seok Geun
    • Journal of Korean Society for Geospatial Information Science
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    • v.20 no.3
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    • pp.109-115
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    • 2012
  • Pedestrian safety is becoming a major priority on the nation's roadway policy. Numerous strategies have been experimented with nationwide in an attempt to reduce the accidents of pedestrian-vehicle crashes, especially in pedestrian crosswalk. We suggest the wireless controlled in-pavement flashing light system to reduce the accident at pedestrian crosswalk. We have recommended the use of wireless controlled systems as a tool to manage the In-pavement flashing light system that have retain high visibility goals for pedestrian preserving or enhancing pedestrian safety. Then we have compared this system with any other legacy systems in respect of cost and effects.

The Study of Complementary Standards to Improve Visibility on Crosswalk throughout Verification Studies after Reviewing Standards (횡단보도의 시인성 향상을 위한 기준검토 및 검증 테스트를 통한 보완 기준(안) 연구)

  • Lee, Mi-Ae;Lee, Dong-Hee;Lee, Yoon-Gyeong
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.28 no.8
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    • pp.14-23
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    • 2014
  • According to the analysis of crosswalk pedestrian accidents, accidents that occur at night represent 70% of all deaths among crosswalk pedestrians when compared to accidents occurring in the daytime. This is due to the poor visibility that hinders drivers to recognize pedestrians at night. Illuminance on the horizontal plane of the road and the current state of crosswalk lighting are not sufficient enough to comply with standards. Thus, we analyzed factors derived from lighting environment studies on improving crosswalk visibility, domestic and foreign crosswalk lighting standards, and subsequently proposed solutions which are needed to raise domestic crosswalk lighting standards, and a means to uphold those standards through proper verification.

A Study on Evaluation of Restoring Crosswalk and Improving Pedestrian Overpass by Contingent Valuation Method (조건부가치측정법에 의한 횡단보도 복원 및 육교 개량의 가치평가에 관한 연구)

  • Lee, Hwan Jin;Oh, Yun Pyo
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.32 no.4D
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    • pp.323-333
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    • 2012
  • This paper is aimed to recognize trends of various social groups about multiple transportation policies such as the crosswalk restoration by eliminating the pedestrian overpasses and the improvement or continuous extension of existing pedestrian overpasses, currently implemented in Busan, following the globally prevailing pedestrian-oriented transportation environment. Also, this paper utilizes Contingent Valuation Method (CVM) to evaluate the efficiency of individual alternatives in terms of respondent's willingness-to-pay (WTP). Consequently, survey participants preferred the crosswalk or improvement of the pedestrian overpasses rather than depending on the existing pedestrian overpasses. In addition, the WTP value for the crosswalk restoration is approximately 42,452 won per household per year, and, on the other hand, the WTP value for the improvement of existing pedestrian overpasses is approximately 36,793 won per household per year, implicating that the transportation policy makers are suggested to place more priorities on crosswalk restoration than the improvement of the existing pedestrian overpasses.

A Study on a Novel LED Lighting Fixture for Crosswalk Having Two Different Light Distributions (두 가지 배광을 갖는 LED 횡단보도 조명장치에 관한 연구)

  • Kim, Hyeong Jin;Lee, Dong Kyu;Kwak, Joon Seop
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.27 no.9
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    • pp.606-611
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    • 2014
  • Recently, LED lighting fixtures for crosswalk become popular in order to recognize the pedestrians at crosswalk, which can enhance the safety of the pedestrian at crosswalk. However, there are several problems related to the LED lighting fixtures for crosswalk, such as a lot of energy consumption due to a constant illumination during night and glaring of pedestrians at the opposite side of crosswalk. In this study, in order to overcome these problems, we have investigated a novel LED lighting fixture for crosswalk, which has two modules with different angles ($60^{\circ}$, $120^{\circ}$). Illuminance of min and max at four-line city street crosswalk shown 50 Lux, 125 Lux, respectively. Illuminance of min and max at eight-line city street crosswalk shown 150 Lux, 200 Lux, respectively. Simulation investigation was optimized design using optical program. Prototype was verified measurement by goniometer system.

Constructing Effective Smart Crosswalk Traffic Light Mechanism Through Simulation Technique (시뮬레이션 기법을 통한 효율적 스마트 보행신호등 메커니즘 구축)

  • Lee, Hyeonjun;Moon, Soyoung;Kim, R.Youngchul;Son, Hyeonseung
    • KIISE Transactions on Computing Practices
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    • v.22 no.2
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    • pp.113-118
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    • 2016
  • The walking speed of handicapped people generally is slower than that of normal people. So it is difficult for them to cross at crosswalks within the allotted time provided by the traffic light. This problem can be solved by expanding the time of the traffic light. However, if the latency of the traffic light is increased without distinguishing the handicapped among all other pedestrians, the efficiency of traffic signal lights will decrease. In this paper, we propose a smart traffic signal connecting mechanism between the previous pedestrian traffic signal and a pedestrian's device (smartphone). This Smart pedestrian traffic light, through this mechanism, minimizes traffic congestion by providing additional walking time only to the handicapped among pedestrians. This crosswalk traffic light recognizes the handicapped using a technique called Internet of things (IOT). In this paper, we extract the data necessary to build an effective smart crosswalk traffic light mechanism through simulation techniques. We have extracted different kinds of traffic signal times with our virtual simulation environment to verify the efficiency of the smart crosswalk pedestrian traffic light system. This approach can validate the effective delay time of the traffic signal time through a comparison based on number of pedestrians.

Pedestrian Recognition of Crosswalks Using Foot Estimation Techniques Based on HigherHRNet (HigherHRNet 기반의 발추정 기법을 통한 횡단보도 보행자 인식)

  • Jung, Kyung-Min;Han, Joo-Hoon;Lee, Hyun
    • IEMEK Journal of Embedded Systems and Applications
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    • v.16 no.5
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    • pp.171-177
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    • 2021
  • It is difficult to accurately extract features of pedestrian because the pedestrian is photographed at a crosswalk using a camera positioned higher than the pedestrian. In addition, it is more difficult to extract features when a part of the pedestrian's body is covered by an umbrella or parasol or when the pedestrian is holding an object. Representative methods to solve this problem include Object Detection, Instance Segmentation, and Pose Estimation. Among them, this study intends to use the Pose Estimation method. In particular, we intend to increase the recognition rate of pedestrians in crosswalks by maintaining the image resolution through HigherHRNet and applying the foot estimation technique. Finally, we show the superiority of the proposed method by applying and analyzing several data sets covered by body parts to the existing method and the proposed method.

An Analysis of the Vulnerable-Pedestrian Crossing Time in Test Crosswalk (설험용 횡단보도에서 교통약자 가로횡단시간 분석)

  • Kim, Tae-Ho;Hu, Uk;Hwang, Eu-Pyo;Won, Jai-Mu
    • Journal of the Korean Society of Safety
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    • v.23 no.4
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    • pp.90-98
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    • 2008
  • Presently, pedestrian's signal time models in korea are not considering Vulnerable-Pedestrian. So, the safety of Vulnerable-Pedestrian is being threatener and the number of accidents is increasing. Besides, the existing operational system for pedestrians can't offer the cross signal time in road corresponded the changing environment when the school zone is revitalized and the Silver zone is introduced for Vulnerable-Pedestrian. Conclusively, Vulnerable-Pedestrian's signal time models which are able to consider classified Vulnerable-Pedestrian speed, Vulnerable-Pedestrian perception-reaction time, Vulnerable-Pedestrian Spare(congestion-delay) time are suggested by the result of experiment in virtual crosswalk. the application of suggested models in this study to the site. It is possible to use as a basic stuff on study of pedestrian's signal time and expected to contribute the safety and mobility in future.