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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of The Korean Society of Civil Engineers
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Journal DOI :
Korean Society of Civil Engeneers
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Volume & Issues
Volume 32, Issue 6D - Nov 2012
Volume 32, Issue 6C - Nov 2012
Volume 32, Issue 6B - Nov 2012
Volume 32, Issue 6A - Nov 2012
Volume 32, Issue 5D - Sep 2012
Volume 32, Issue 5C - Sep 2012
Volume 32, Issue 5B - Sep 2012
Volume 32, Issue 5A - Sep 2012
Volume 32, Issue 4D - Jul 2012
Volume 32, Issue 4C - Jul 2012
Volume 32, Issue 4B - Jul 2012
Volume 32, Issue 4A - Jul 2012
Volume 32, Issue 3D - Jun 2012
Volume 32, Issue 3C - Jun 2012
Volume 32, Issue 3B - Jun 2012
Volume 32, Issue 3A - Jun 2012
Volume 32, Issue 2D - Apr 2012
Volume 32, Issue 2C - Apr 2012
Volume 32, Issue 2B - Apr 2012
Volume 32, Issue 2A - Apr 2012
Volume 32, Issue 1D - Feb 2012
Volume 32, Issue 1C - Feb 2012
Volume 32, Issue 1B - Feb 2012
Volume 32, Issue 1A - Feb 2012
Selecting the target year
A Study on the Analysis of Walking Behavior in Transfer Stations after the Improvement of Walking Environment
Park, Ji-Hwan ; Oh, Seung Hwoon ; Rhee, Jong-Ho ;
Journal of The Korean Society of Civil Engineers, volume 32, issue 3D, 2012, Pages 189~196
South Korea has achieved economic development rapidly during last 50 years. However, such fast economic development with industrialization caused skyrocketing increase of automobiles. The increase of automobile has created various problems in the cities. Problems like traffic congestion and accident, environmental pollution, noise, and vibration have done human beings, who are the principal agents harm. They have made citizens understand how important Green transportation, especially pedestrian movement, is. Recently, installation of pedestrian facilities has been expanded. If walking facilities are incorrectly designed, they can create inconvenience, danger and the state of emergency due to the lack of safety and pleasant feelings. However, since the importance of the facility designs has been neglected due to the lack of understanding, it is hard to improve the facilities. Therefore, we need various studies of walking simulation in order to research the designs for pedestrians' safety and convenience. The objective of this study is to analyze the pedestrians' behavior and movement in a transfer subway station. The improvement of walking environment was made after chasing and analyzing the pedestrians' movement which is investigated in the actual field using SimWalk simulation program.
A Study on the User Satisfaction of Type of Parking Lot in Apartment Complex by Structural Equation Modeling
Kim, Ki-Hyuk ; Han, Min-Keun ;
Journal of The Korean Society of Civil Engineers, volume 32, issue 3D, 2012, Pages 197~203
This study made an attempt to investigate the influential factor and relationship between the type of parking lot and user satisfaction. The types of parking lot in Apartment complex considered in the research is categorized into three types : ground, underground, and combined. A questionnaire survey has been conducted for apartment complex residents to collect research data which has been used for structural equation modeling. The study result tells that the factors of accessibility, safety for pedestrians and cars, environment which are security and cleanness, and convenience are found to be influential for user satisfaction to the type of parking lot and accessibility is seen as the most influential factor among them. The crucial characteristics for user satisfaction by each type of parking lot have also been suggested such as convenience for ground parking lot, accessibility for combined type, and safety for underground type.
A Study on Improving the National Highway Traffic Counts System : With Focus on Short Duration Counts and Continuous Counts
Lee, Sang Hyup ; Ha, Jung Ah ; Yoon, Taekwan ;
Journal of The Korean Society of Civil Engineers, volume 32, issue 3D, 2012, Pages 205~212
The national highway traffic counts system consists of short duration counts and continuous counts. Unlike continuous counts, short duration counts are performed by collection of a few days period and thus, the magnitude of deviation of collected data from AADT varies depending upon when data collection takes place. Therefore, this study was done to find out the best months and days of data collection of each highway classification in order to enhance the accuracy of AADT estimation. Continuous counts, another type of the national traffic counts system, are performed by collection of 365-day period using a permanent traffic counter. Therefore, it is necessary to keep the number of days for which the counter malfunctions to a minimum in order to enhance the accuracy of data. However, from time to time the permanent traffic counter malfunctions due to various causes and thus, cannot collect data. Therefore, this study was done to find out whether the age of counter, the ratio of heavy vehicle volume to total traffic volume, etc. could be the direct causes of counter's malfunction based on the number of maintenance for a certain time period.
A Study on the Factors Affecting to Service Satisfaction of Intra-city Bus Users
Kim, Gwang Uk ; Jung, Hun Young ;
Journal of The Korean Society of Civil Engineers, volume 32, issue 3D, 2012, Pages 213~222
After enforcing 2007 semi-public management system of intra-city bus, Busan city has tried to promote the bus utilization through bus service improvements. As an effort for this, we attempted to clarify the main factors affecting to bus service satisfaction targeting intra-city bus users. In this study, 20 subcategories of intra-city bus service were assorted into 6 factors: Basic Service, Safe Driving, Route Information, Comfort, Cleanliness and Facilities, then the preference for each detailed bus service were analyzed. And the effects for bus service satisfaction were shown under the various conditions according to the general characteristics of intra-city bus users (gender, age), behavioral traffic characteristics (frequency of use, boarding time) and transportation environments (temperature, rainfall). These results would be important basic data for decision-making in bus policy for climate change and establishment of operating plan for bus utilization.
A Development of Skid Resistance Prediction Model Considering Water Film Thickness and Vehicle Speed
Jo, Shin Haeng ; Lee, Soo Hyung ; Yoo, In Kyoon ; Kim, Nakseok ;
Journal of The Korean Society of Civil Engineers, volume 32, issue 3D, 2012, Pages 223~229
Skid resistance is defined as the friction between pavement surfaces and vehicle tires. Lower skid resistances were observed as the vehicle speeds the water film thicknesses were increased according to the analysis results using computer modeling. The lift force is calculated from the analysis results and depends on vehicle speeds and the water film thickness. A modified IFI(international friction index) skid resistance prediction model was developed to reduce the differences between the IFI resistance prediction model and the actual skid resistance. The correlation analysis results between the IFI prediction model and the actual skid resistance revealed that the
using the modified IFI prediction model was 0.64 whereas the
using the conventional IFI prediction model was 0.49. This presents the modified prediction model is better than the conventional one. An improved precise prediction model is to be obtained if water film thicknesses are considered in the modified prediction model.
A Study on Strategies for Enhancing Transparency of Domestic Construction Industry through Foreign Cases
Jang, Hyeon Seok ; Park, Hyung Keun ; Lee, Young Soo ;
Journal of The Korean Society of Civil Engineers, volume 32, issue 3D, 2012, Pages 231~237
The interrelation of integrity degree and country competitive power was known as high. But, according to the CPI announcement of Transparency International, the domestic Corruption Perceptions Index ranked 5 points, as being corrupt. It was investigated that the corruption level of Korea was getting worse most in the construction sector. In this way, it is emergent and inevitable to improve the transparency in the construction industry, accounting for 25-54% of the total corruption cases in our society. Transparency International has opened to the public the source data, utilized in the CPI measures in 2010. In the case of Korea, the 9 data of 6 organizations were utilized. According to the PERC, the corruption level of the private sector in Korea has been estimated as the worst among the 16 countries. In this context, this paper analyses the corruption level of Korea by utilizing the source data of the Transparency International CPI. And it aims to comprehend structural problems in the construction industry and to suggest implicative countermeasures through out the anti-corruption activities in the world. It propose finally an improvement of the structural causes in the construction industry, a promotion of effective punishment against corrupt practices, a reinforcement of the transparency management in the construction sector, etc.
Analysis of Construction Management Market Using System Thinking
Kim, Yoon-Woo ; Park, Hee-Sung ;
Journal of The Korean Society of Civil Engineers, volume 32, issue 3D, 2012, Pages 239~245
The necessity of professional construction management has been increased as a construction project is getting larger, more complex and specialized. Thus, the CM market has steadily expanded since 1996 in Korea. Despite the external expanding of the CM market, experts claim that domestic CM regulations and infrastructures should be revised. Therefore, this paper developed a causal map which consists of elements vitalizing CM market. Then, the simulation model using NUMBER (Normalized Unit Modeling by Elementary Relationships) to predict the size of the CM market is established. As a result, in the case of more regulation related CM, the quantity of CM projects could not reach of construction supervision until 2020. This paper can be used as a baseline providing a prospection of the change of CM market according to causal relation between the improvement as well as the base of revitalization research of CM market based on non-institutional factors change.
Serviceability Evaluation of ZigBee Technology for Construction Applications
Shin, Young Shik ; Cao, Shang ; Jang, Won-Suk ;
Journal of The Korean Society of Civil Engineers, volume 32, issue 3D, 2012, Pages 247~258
This research evaluates the serviceability of ZigBee device that provides a potential technology to realizing the ubiquitous computing by improving the productivity and effectiveness in construction and data acquisition. Literature review was conducted in various application areas such as bridge monitoring, slope management, road management, highway traffic control. In addition characteristics and challenges in various wireless technologies are described to identify their adoptability to construction environment. Among them, ZigBee technology was selected to introduce the functionality on hardware, network, and security. Then, questionnaire survey was implemented by four different group, construction engineers, students, hardware developers, and researchers to explore the success and failure factors of ZigBee technology in construction area. The results proposes a guideline of the applicability of ZigBee technology in the area of serviceability, application area, considerations, and future direction. This paper would provide valuable information for future researches and technology development in designing the wireless sensor network applications.
Development of a Work Information Model and a Work Path Simulator for an Intelligent Excavation
Kim, Sung-Keun ; Min, Sung-Gyu ;
Journal of The Korean Society of Civil Engineers, volume 32, issue 3D, 2012, Pages 259~267
The development of construction automation systems is proposed as a potent solution to the difficulties encountered by the construction industry and the preparation for the rapidly changing construction environment. A research concerning an intelligent excavation system has taken place since 2006. The intelligent excavation system has several functions for environment sensing, 3D site modeling, work planning, work path generation, unmaned control, and information management. This paper presents a space information model and a work path simulator for work planning and work path generation which is one of key technologies required to apply the earthwork system to the real world. A data structure for an earthwork site is suggested. It overcomes the limitations of previous data structures such as Quadtree and Octree. The work path simulator can generate an effective work path with considering information on work environment, equipment and operator's heuristic. The work path generated by the simulator is compared with that suggested by human operators.
A Study on Framework to Evaluate the Performance of Intelligent Excavation System
Kim, Seok ; Cho, Namho ; Park, Jiyeon ; Chae, Myung Jin ;
Journal of The Korean Society of Civil Engineers, volume 32, issue 3D, 2012, Pages 269~274
A study on automation system for construction industry has been conducted for decades. However, performance evaluation of automation system has not been suggested yet. The performance evaluation has been conducted only for partial technical elements or for benefits gained through the introduction. This study develops a framework to evaluate the performance of intelligent excavation system in terms of economic feasibility and benefit, and presents a performance evaluation method for automation equipments. The applicability of intelligent excavation system on a site is also analyzed in this study.
A Study on the Relations with Motivation of Visiting and Evaluation by Location Type
Choi, Yeol ; Lee, Jae Hyun ; Sung, Yu Jeong ;
Journal of The Korean Society of Civil Engineers, volume 32, issue 3D, 2012, Pages 275~281
The aim of this study is to suggest the development direction of future space management. It is not a simple question that why people visit specific place. People visit a place for escape from routine, to learn from other people, spend a time with their friends or lover, to take a rest and get some fresh idea, to relieve stress, and for shopping. It is depend on a various visit motivation with complicated a psychological phenomenon. Visitor participate in choice a specific place by various motivation and purpose. Generally, visitor motivation accepted understanding visitor behavior and process of selected a place. Understanding that why people visit specific place can use a marketing and policy making of visit place so we need to study about visitor motivation. Data were collected through offline surveys from 501 people who have visited four survey place. Empirically analyzed the determinations of visitor motivation and estimate the place by using Ordinal Logit Model.
Evaluation on Impedance to Access and Transfer for Deep Underground Railway Network
Park, Kil-Hyun ; Kim, Hyun ;
Journal of The Korean Society of Civil Engineers, volume 32, issue 3D, 2012, Pages 283~289
Because railways themselves are not enough to provide door-to-door service, they need to be complemented by a transportation system access the stations and a convenient transfer system to access other railway lines. User friendly service policies include a faster, interconnected, and intermodal transportation system. It becomes more important to use deep subterranean space from an economical standpoint in order to promote railway construction projects. In this research, the authors dealt with construction plan for strengthening capacity of deep subterranean railways. Since deep subterranean railways are situated deeper underground than other railways, they are more difficult to access and transfer to, in addition to psychological pressure. Moreover, deep subterranean railways with high speed add access difficulties as the distance between stations increases. Therefore, the authors discuss not only systemization for uniting deep subterranean railways and other transportation facilities but also reinforcement strategies. The purpose of these strategies is so that deep subterranean railways provide mobility while established railways provide accessibility to overcome this problem.