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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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International Journal of Highway Engineering
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Journal DOI :
Korean Society of Road Engineers
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Volume & Issues
Volume 14, Issue 6 - Dec 2012
Volume 14, Issue 5 - Oct 2012
Volume 14, Issue 4 - Aug 2012
Volume 14, Issue 3 - Jun 2012
Volume 14, Issue 2 - Apr 2012
Volume 14, Issue 1 - Feb 2012
Selecting the target year
Evaluation on the Horizontal Alignment of Road Centerline using GIS Programming
Kim, Dong-Ki ; Choi, Se-Hyu ;
International Journal of Highway Engineering, volume 14, issue 1, 2012, Pages 1~8
DOI : 10.7855/IJHE.2012.14.1.001
The horizontal alignment of road is deeply related with the stability of the road and traffic capacity. It is necessary to analyze horizontal alignment of road accurately for efficient maintenance of the road and relevance judgment about the standard. Recently the study on horizontal alignment of road using Lidar data and GPS was concluded, but they were many problem analyzing horizontal alignment radius of curvature in wide area. In this study, the tool which the radius of curvature can evaluate the suitability about "Rules about the Road Structure & Facilities Standards" by using center lines of the road of the digital map tries to implement on GIS. The interface was designed and implemented which can automatically estimate the Road Centerline Horizontal Alignment by using
High Performance Glass Beads for Traffic Marking in Wet Weather
Lee, Chang-Geun ; Lee, Hyun-Seock ; Oh, Heung-Un ;
International Journal of Highway Engineering, volume 14, issue 1, 2012, Pages 9~16
DOI : 10.7855/IJHE.2012.14.1.009
The performance of road markings is classified into the visibility at daytime, night time, wet condition and rainy conditions. The objective of this study is to obtain the driving safety of drivers under conditions of unstable weather condition such as the rain. The visibility of road markings is closely related to the preview time and detection distances and the ways to improve road marking materials and increase the dry retroreflectivity and wet retroreflectivity, which are the measures of daytime and nighttime visibility is researched to decrease the traffic accidents. For this purpose, Road marking glass beads with the refraction rate of 1.5 and 2.2 are introduced to raise the retroreflectivity. After investigating the minimum threshold retroreflectivity and Install Minimum retroreflectivity at home and abroad, minimum control values for the roadmarking visibility and improvement of nightime rainy retroreflectivity are suggested by physical properties and retroreflectivity experiments.
Evaluation of Physical and Mechanical Characteristics of Korean Epoxy Asphalt Mixtures
Kim, Byung-Hun ; Baek, Jong-Eun ; Lee, Hyun-Jong ; Park, Hee-Mun ;
International Journal of Highway Engineering, volume 14, issue 1, 2012, Pages 17~24
DOI : 10.7855/IJHE.2012.14.1.017
This study evaluated the performance of Korean epoxy asphalt mixtures using several laboratory tests. Four types of epoxy asphalt mixtures were manufactured based on 13mm dense graded asphalt mixtures: three Korean and one Japanese epoxy asphalt mixtures where 20% or 40% of asphalt binder was replaced by epoxy resins. Curing time was determined as 3 and 6 hours for the mixtures containing 40% and 20% of epoxy resins, respectively. From the laboratory tests including wheel tracking, indirect tension fatigue, bending beam, and moisture susceptibility tests, it was concluded that the epoxy asphalt mixtures had superior performance than conventional asphalt mixtures except moisture susceptibility. Also, the performance of the Korean epoxy asphalt mixtures was comparable to the Japanese mixtures. Thermal coefficient, bond strength, and indirect tension tests were conducted to examine the applicability of the Korean epoxy asphalt mixtures to concrete repair. Its adhesion was strong enough to be bonded to surrounding concrete materials and its tensile strength was comparable to the concrete, but thermal expansion coefficient was 5 times greater than the surrounding concrete.
Noise Reduction Characteristic of Total Quiet Pavement System
Lee, Kwan-Ho ; Park, Woo-Jin ;
International Journal of Highway Engineering, volume 14, issue 1, 2012, Pages 25~34
DOI : 10.7855/IJHE.2012.14.1.025
The rapid economic development induced the massive road constructions, becoming bigger and high-speed of the vehicles. However, it brings lots of social problems, such as air pollutions, traffic noise and vibration. Special concrete block for the base course of asphalt pavement is needed to decrease traffic noise such as tire's explosive and vehicles sound, applying Helmholtz Resonators theory to asphalt pavement. If it is applied to the area where it happens considerable noise such as a junction, the street of a housing complex and a residential street, it is one of alternative methods to solve the social requirements of noise problems. This research examines couple of laboratory tests for the sound absorption effect of the concrete block and the base concrete block for quiet pavement. The specimens, which is fixed hall-size, space, depth as the condition of this research, are analysed of noise reduction effect using different noise levels of vehicles. Judging from the analysis of test results with vehicle noise volume, measurement distance, a form and size of the hall using the base concrete block, the use of special concrete base and quiet asphalt surface showed a good alternative solution for decreasing traffic noise level, from 4dB to 9dB.
A Study on Design Standards of a median strip in City considering Traffic Safety
Kim, Jong-Min ; Kim, Jang-Wook ; Noh, Kwan-Sub ; Kim, Kyung-Tae ;
International Journal of Highway Engineering, volume 14, issue 1, 2012, Pages 35~43
DOI : 10.7855/IJHE.2012.14.1.035
The Government is implementing the safety measures for pedestrian in living zone to decrease the traffic accident casualties in half. It is urgently to study the guideline because it contains to make the guideline of a median strip in City to prevent the violation of central line and jaywalking on the main contents. So, this study analyzed the pedestrian accidents and the violation of central line, and studied the type of a median strip, the installation guideline through studying the minimum crossing. Consequently, this study found out that a median strip which revised the attention inducement stick to decrease jaywalking could not have the strong prevention function of a crash barrier, so if it happens separation after the collision between vehicles, it induced the secondary accidents, and could take negative effects on traffic safety. In consideration of driving safety, this study analyzed that if it installs a median stirp, it has to ensure one meter, and such a thing could prevent the separation of lane or damage of facilities. However, if it is hard to ensure the space because of narrow road width, it could install a median strip in case of installing the road surface mark 0.5m. And the installation of the attention inducement stick or a median strip on the central line could be possible to induce the violation of central line, thus it is desirable not to install only anythings but also raised pavement markers.
Drying Shrinkage Evaluation of Concretes with Various Volume-Surface Ratios, Aggregate Types and Concrete Pavement Mixes
Yang, Sung-Chul ;
International Journal of Highway Engineering, volume 14, issue 1, 2012, Pages 45~53
DOI : 10.7855/IJHE.2012.14.1.045
This study was performed to analyze test results on drying shrinkage for concrete specimens mixed with various constituents in concrete mixes. Test variables are coarse aggregate types(Limestone, Sandstone, Granite, Andesite, Gneiss), fine aggregate types(natural sand, crushed sand) and cement amounts(normal strength, high strength). Epoxy coating of(U&V-H(A,B)) was applied onto the specimen surface to simulate diverse volume surface ratios(22.2, 40, 85.7, 150, 200, 300) with different specimen sizes. The experiments had been executed during 1,014 days at a condition of
and relative humidity of 60% in environmental chambers. Test results showed that shrinkage strain from the specimen equivalent to real pavement decreased to 39% compared to the standard specimen recommended by KS. Test results also showed that shrinkage strain of the specimen mixed with Limestone was 56~76% of that with Sandstone, thus Limestone mix seems to be suitable to the concrete pavement.
An Experimental Evaluation of Clay Minerals to Remove Non-point Sources of Contaminants in the Urban Runoff
Song, Young-Woo ; Rhee, Suk-Keun ;
International Journal of Highway Engineering, volume 14, issue 1, 2012, Pages 55~61
DOI : 10.7855/IJHE.2012.14.1.055
The ability of clay mineral to remove non-point sources such as SS, COD, T-N. T-P in the urban runoff has been tested to develop the porous filter material. The diameter of 3mm ball type filters were made of clay minerals for the tests. The experiments were carried out to measure the concentration of non-point sources of contaminants with flow rate of effluents. The test results show that clay filter has good response to remove SS, COD comparing to those of activated carbon filter. Also the performance of the clay filter to remove T-N and T-P is almost the same when using the activated carbon filter.
The Effectiveness of Traffic Safety Education to Seniors
Oeo, Gee-Young ; Kim, Do-Gyeong ; Kim, Young-Rok ;
International Journal of Highway Engineering, volume 14, issue 1, 2012, Pages 63~72
DOI : 10.7855/IJHE.2012.14.1.063
While the number of crashes and fatalities has decreased for the last few decades, the proportion of elderly-involved crashes has continuously increased from 19.5% in 2001 to 29.6% in 2008. This paper aims to evaluate the effectiveness of traffic safety education to seniors, which has been conducted for the purpose of providing more systematic knowledge such as safety regulations and making the elderly more aware of the risks of crashes, and eventually to reduce elderly-involved crashes. First, we investigated the levels of traffic safety knowledge of the elder people who attend senior community centers and social welfare centers in Seoul and provided traffic safety education. Then, the effectiveness of traffic safety education was evaluated by using the before-and-after analysis. We set up two different groups to improve the reliability of evaluation: one for control group and the other for comparison group. The results showed that the average scores of the control group after education were significantly improved at the 95% significance level compared to the average scores before education, whereas the comparison group did not show a significant differences in the average scores before and after education except for two questions. This indicates that the levels of traffic safety knowledge of the control group have been improved through education and therefore, the safety education seem to be effective to some extent.
Designing Pavement Marking for Hi-pass Lane Based on Kansei Engineering
Hong, Sung-Min ; Oh, Cheol ; Jang, Ji-Yong ; Kim, Gwang-Ho ; Park, June-Young ; Chang, Myung-Soon ;
International Journal of Highway Engineering, volume 14, issue 1, 2012, Pages 73~83
DOI : 10.7855/IJHE.2012.14.1.073
Effective use of traffic marking can lead to driver's safer driving by speed management and visibility enhancement. One of the critical factors in designing traffic marking is how to incorporate human factor issues into the design process. This study presented a methodology for evaluating the effectiveness of Hi-pass marking on Korean freeways based on kansei engineering. Hi-pass marking scenarios made by a virtual reality tool were used to evaluate the user's perceptions. Various combination of chevron angles and peripheral transverse(PT) bars were used for the evaluation. The results show that the most effective scenario is a combination of 60 degree chevron angle and an askew parallelogramshaped PT bar shaped. It is expected that the proposed method and outcome will be useful for making safer driving maneuvers.
A Study on the Influencing Factors for Incident Duration Time by Expressway Accident
Lee, Ki-Young ; Seo, Im-Ki ; Park, Min-Soo ; Chang, Myung-Soon ;
International Journal of Highway Engineering, volume 14, issue 1, 2012, Pages 85~94
DOI : 10.7855/IJHE.2012.14.1.085
The term "incident duration time" is defined as the time from the occurrence of incident to the completion of the handling process. Reductions in incident durations minimize damages by traffic accidents. This study aims to develop models to identify factors that influence incident duration by investigating traffic accidents on highways. For this purpose, four models were established including an integrated model (Model 1) incorporating all accident data and detailed models (Model 2, 3 and 4) analyzing accidents by location such as basic section, bridges and tunnels. The result suggested that the location of incident influences incident duration and the time of arrival of accident treatment vehicles is the most sensitive factor. Also, significant implications were identified with regard to vehicle to vehicle accidents and accidents by trucks, in night or in weekends. It is expected that the result of this study can be used as important information to develop future policies to manage traffic accidents.
Analysis of Traffic Accident Characteristics for the Overlap Section of Horizontal and Vertical Alignment
Park, Min-Soo ; Chang, Myung-Soon ;
International Journal of Highway Engineering, volume 14, issue 1, 2012, Pages 95~102
DOI : 10.7855/IJHE.2012.14.1.095
This study has been conducted to characterize the relations between the accident rate and the overlap section elements where the horizontal alignment and vertical alignment are overlapped. The researches were performed on Horizontal curve sections of 4-lane highways with 100km/h of design speed and speed limit. Korea Highway Corporation's Geographic Figurative Information System was adopted for geometric organization and Highway Traffic Accident Statistics was used. The results reveal that sections made of a single slope without vertical curve has greater accident rate than those with vertical curve, and that sections with 1 vertical curve are higher in the accident rate than those with over 2 vertical curve. For the sections with 1 vertical curve, SAG sections are higher than CREST sections and for the previous straight section of horizontal curve are higher than curved ones. In particular, when the road surface is wet, the accident rate is closely related with SAG vertical curves or leftward horizontal curved sections. This study will have meanings that it proposes the importance of design of road alignment by taking consideration of 3D synthetic alignment conditions for improvement of the road safety.
Driving Behavior Analysis of Commercial Vehicles(Buses) Using a Risky Driving Judgment Device
Oh, Ju-Taek ;
International Journal of Highway Engineering, volume 14, issue 1, 2012, Pages 103~109
DOI : 10.7855/IJHE.2012.14.1.103
Digital speedometer which is supposed to provide the basic data for analyzing human factors of drivers has a limitation for human behavior studies of drivers, because it records limited driving information including GPS velocities. Besides, Black Box, which is currently being actively commercialized in the market, records mostly vehicles' risky patterns rather than drivers' behaviors. As a result, it also shows a limit to analyze dangerous driving patterns. This study performed a risky driving study for human factor analysis. This study conducted before and after comparisons for real time warning study using a risky driving judgment device. The analysis was conducted based on Longitudinal acceleration, Lateral acceleration, and Yaw rate of vehicles.