• Title, Summary, Keyword: Traffic safety facility

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Analysis of the Effect of Traffic Safety Investment on Traffic Accident Reduction Using Panel Data (패널자료를 이용한 교통안전투자 종류별 사고감소 효과)

  • Gang, Su-Cheol;Bae, Hyeong
    • Journal of Korean Society of Transportation
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    • v.29 no.5
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    • pp.19-32
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    • 2011
  • There are many investment budget drafts in the filed of a road traffic safety. The traffic safety budget is spitted into following three major areas: 1) traffic safety facility (Engineering), 2) traffic enforcement (Enforcement), and 3) traffic safety education & public relation (Education). The three area are known as so-called 3E policy. This study investigates the effect of the investment in the 3E policy on the reduction of traffic accidents analyzing the data annually collected from the 15 local governments during 1992 to 2007. The analysis employing the traffic accidents as the dependent variable reveals that the effect of the investment is higher if same amount of investment is made on areas of the traffic safety education and public relation than the area of facility improvement. The similar conclusions are resulted from the separate investigation of traffic accidents data by 6 different types. All the results consistently indicate that the current traffic safety investment being primarily made on traffic safety facility needs to shift to the areas of traffic safety education and public relation budget.

A Factor Analysis of Traffic Accidents Through Traffic Safety Diagnosis Results - Driver Factor - (교통안전진단 결과분석을 통한 교통사고 요인분석 - 사고자 요인을 중심으로 -)

  • Lee, Hwan-Seung;Ahn, Byung-Jun
    • Journal of the Korean Society of Safety
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    • v.21 no.2
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    • pp.128-137
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    • 2006
  • Traffic accidents occur due to complex influences of transportation companies, drivers, and road environment. This study found that education and surroundings for transportation companies, driving habits of drivers, and road safety facilities and accessory facilities were main factors that affected strongly traffic accidents. Also, it found that driving habits of drivers could affect accidents heavily more than two other factors. Road safety and accessory facilities were analysed that they affected traffic accidents independently with transportation companies and their own drivers. Therefore, in order to achieve a traffic accident prevention as our main target, those companies need to produce atmosphere that their own drivers can have safety awareness, and related institutions for the above target should run parallel with policy assistance and strict traffic enforcement. In the end, this study suggests that transportation companies should secure manpower wholly being charged with traffic safety and financial resources investing in it.

A preliminary study on operation-effectiveness analysis of marine traffic safety facility (해상교통안전시설의 운영효과분석에 관한 기초연구)

  • Gug, Seung-Gi;Kim, Jung-Hoon;Piao, Yong-Nan
    • Journal of Navigation and Port Research
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    • v.31 no.10
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    • pp.819-824
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    • 2007
  • This paper studied safety benefit of operation-effectiveness analysis on marine traffic safety facilities. In the operation-effectiveness of marine traffic safety facilities the benefits can be divided as safety benefit, transport benefit, and other benefit. Safety benefit was produced as the loss aversion cost of marine traffic caused by the reduction of marine accidents after establishing and operating marine traffic safety facilities. First of all the reduction rate marine accidents was estimated to do it, and the detail model of loss aversion cost was constructed Then each variable in the model was defined and the method of computation presented.

Effects on the Vehicle Running Speed Analysis according to the Speed Reduction Road Facilities (속도저감형 시설이 차량 주행 속도에 미치는 영향 분석)

  • Kang, Soochul;Yoo, Soonduck;Cho, Gyucheol
    • Journal of the Korean Society of Safety
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    • v.31 no.5
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    • pp.158-170
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    • 2016
  • It has been applied several ways in order to prevent traffic accidents and speed management on the road which is one of very important factors to prevent accidents. In this study, it is analyzed whether the facility such as the flashing and crosswalk, speed cameras and intermittent warning signs affect on a driving deceleration or not. It has been shown that the flashing and crosswalk and speed cameras except intermittent warning signs play a role of reducing the driving speed. The result showed that these traffic safety facilities help to improve the average speed as well as velocity distribution which was derived by the speed deviation even if there were the difference between facilities. Speed limit display does not affect the deceleration of the driver. Therefore, it was founded in this research that there were the driving speed reduction effect due to the facilities on the road. In order to control the driving speed on the road, it is necessary to install facilities with appropriate location and spacing on the road. In addition, place that turns out suppressed speeding through speed management also are required adequate facilities such as speed cameras.

The Road Traffic Sign Recognition and Automatic Positioning for Road Facility Management (도로시설물 관리를 위한 교통안전표지 인식 및 자동위치 취득 방법 연구)

  • Lee, Jun Seok;Yun, Duk Geun
    • International Journal of Highway Engineering
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    • v.15 no.1
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    • pp.155-161
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    • 2013
  • PURPOSES: This study is to develop a road traffic sign recognition and automatic positioning for road facility management. METHODS: In this study, we installed the GPS, IMU, DMI, camera, laser sensor on the van and surveyed the car position, fore-sight image, point cloud of traffic signs. To insert automatic position of traffic sign, the automatic traffic sign recognition S/W developed and it can log the traffic sign type and approximate position, this study suggests a methodology to transform the laser point-cloud to the map coordinate system with the 3D axis rotation algorithm. RESULTS: Result show that on a clear day, traffic sign recognition ratio is 92.98%, and on cloudy day recognition ratio is 80.58%. To insert exact traffic sign position. This study examined the point difference with the road surveying results. The result RMSE is 0.227m and average is 1.51m which is the GPS positioning error. Including these error we can insert the traffic sign position within 1.51m CONCLUSIONS: As a result of this study, we can automatically survey the traffic sign type, position data of the traffic sign position error and analysis the road safety, speed limit consistency, which can be used in traffic sign DB.

Evaluation of Left-Turn Passages for Bicycle Traffic in Mixed Traffic Stream at Signalized Intersections (혼합교통류 신호교차로에서 자전거교통 좌회전 통행방식 평가연구)

  • Joo, Shin-Hye;Oh, Cheol;Lee, Sang-Soo
    • International Journal of Highway Engineering
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    • v.14 no.5
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    • pp.145-155
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    • 2012
  • PURPOSES: This study proposes a novel method based on microscopic simulation models to evaluate bicycle passing ways in mixed traffic flow conditions at signalized intersections. METHODS: Both operational efficiency and safety are taken into consideration in the evaluation. A widely used performance measure, delay, is used for evaluating the operational efficiency. Regarding the safety evaluation, surrogate safety measures (SSM) to represent traffic conflicts and the level of crash severity, DeltaS and Max.DeltaV, are applied in the proposed method. RESULTS: Extensive simulations and statistical tests show that an integrated bike-box way is identified as the best in terms of operational efficiency and safety. CONCLUSIONS: The proposed method and outcomes of this study will be valuable for bicycle traffic operations and facility design.

A Study on Development of Crash Cushion (도로 충격흡수시설의 개발에 관한 연구)

  • Choi, Ki-Jun;Kwon, Yong-Seok
    • Journal of the Korean Society of Safety
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    • v.26 no.5
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    • pp.7-12
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    • 2011
  • The crash cushion has drawn a great attention because of its versatility, efficiency and simplicity in reducing the mortality and damages from traffic accidents. However, the existing cushion systems are high priced or have limited functions. The purpose of the study was to devise an improved crash cushion which can offer higher safety compared to the available ones at present. In addition, the conformity of the cushion with the facility standards was assessed through computer simulation for collision with vehicles. The novel cushion system adopts the used tires as shock absorber, which can not only secure cushioning effect but also reduce the production cost. Moreover, it is highly durable and easy to maintain and repair the damaged parts. According to the simulation using BARRIER VII program, the novel cushion system showed PHD of 17.4 g and 10.1 g for a frontal collision and a side collision, respectively. Based on the results, it could be concluded that the novel cushion system met the test standards in the guideline for road safety facility installation and management.

A Study on Site investigation for Cut Slope Management Manual preparation (절토사면 유지관리 매뉴얼 작성을 위한 현장조사에 관한 연구)

  • Ji, Young-Hwan;Chang, Buhm-Soo;Kim, Yong-Soo;Lee, Jong-Young
    • Proceedings of the Korean Geotechical Society Conference
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    • pp.825-830
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    • 2005
  • Cut slope and facility of management investigation is the protection of humans and properties. it is very important the prevention of disaster facility and the damage of the slope protection facility. It is very difficult to forecast slope stability, disaster possibility and collapse. It will be able to minimize the damage which it prepare against slope facility and cut slope of deformable investigation and collapse and the disaster. therefore those deformable investigation is important. Investigations execute upheaval, crack, sliding for slope and cut slope reinforcement. Investigation executes forecast in place where the construction problem, the effect which the damage in road traffic or the contiguity facility.

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Experimental Investigation of Macroscopic Analysis of Traffic Safety Using Meta Analysis Focused on Busan Metropolitan City (메타분석을 이용한 교통안전성의 거시적 분석에 대한 실험적 고찰 : 부산광역시를 중심으로)

  • Park, Jongseo;Oh, Yun Pyo;Kim, Hoe Kyoung;Ahn, Woosung
    • Journal of The Korean Society of Civil Engineers
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    • v.35 no.6
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    • pp.1339-1345
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    • 2015
  • Korean government annually estimates and reports the traffic safety index to evaluate the traffic safety of 228 Gu Gun. However, since the traffic safety index is derived from the spatially macroscopic perspective based on collected relative data, there are a couple of problems such as inability to investigate the individual traffic accidents on the spot, insecurity of accuracy and reliability of traffic safety index estimation method, and absence of establishing temporal relationship of traffic accidents. Thus, this study investigated temporal traffic safety in macroscopic manner for Gu Gun in Busan depending on the installation of the traffic safety facility (i.e., urban median), employing meta analysis. As a result, all Gu Gun in Busan except Saha, Buk, Dong, and Busanjin experienced more traffic accidents after installing the urban median, indicating that there are more rooms for improvement of macroscopic traffic safety evaluation.

Mt. Baekdu Tourism and Rehabilitation of the Mt. Baekdu Airport (백두산 관광과 백두산공항 개선)

  • Yu, Seung-Gwon
    • Journal of the Korean Professional Engineers Association
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    • v.40 no.6
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    • pp.53-58
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    • 2007
  • The government announced to launch tours to the Mt.Baekdu that use a direct air route through the 2007 South-North Korean leader joint declaration. The Mt.Baekdu tourism is large symbolism to the Korean people. Government and Hyundai Asan speak that propel Mt.Baekdu tourism using existent Samjiyeon airport in early time. But, air traffic and airport operation must consider safety preferentially. Present condition investigation and facility improvement of the Samjlyeon airport should be enforced first. And need facility expansion by increased demand hereafter. Compose South-North Air traffic network system to this opportunity and basis research and phase investment may have to be propelled.

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