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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of Korean Society of Transportation
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Journal DOI :
Korean Society of Transportation
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Volume & Issues
Volume 12, Issue 4 - Aug 1994
Volume 12, Issue 3 - Jun 1994
Volume 12, Issue 2 - Apr 1994
Volume 12, Issue 1 - Feb 1994
Selecting the target year
Service Level Evaluation for the Airport Landside System
Journal of Korean Society of Transportation, volume 12, issue 4, 1994, Pages 5~19
The new concept of level of service for the airport system indicates that there must be strong stimulation to proceed with the current stereotyped service standards which are being criticised due to their being based on, either physical capacity/volume or temporal/spatial standards that directly incorporates the perception of passengers. Quantitative factors have been dealt with the main service measurements when evaluating level of service. However, the passenger's perception for the provision service at the airport system is definitely important consideration to assess level of service. To enhance the reliability of service level evaluation from the passenger's point of view, this study has adopted three main evaluation factors ; temporal/spatial factors as quantitative measurements and comfort and reasonable service factors as qualitative measurements. The multi-decision model was constructed using Fuzzy Set Theory and applied to a case study at Seoul Kimpo International Airport. Results are presented in terms of passenger satisfaction with a variety of different values.
Guideline for Vertical Length by Grade for Bikeway
Journal of Korean Society of Transportation, volume 12, issue 4, 1994, Pages 21~33
The grade is a very significant factor in designing the bikeways. It affects the cyclist's maneuverability as well as route selection. The objective of this paper is to provide the vertical length by grade for bikeway. Field experiments were conducted by primary school children and university students to collect and analyze bike's climbing capability by grade. Combined data suggests that the desirable vertical length is 360m for 3% grade, 220m for 4%, 160m for 5%, 120m for 6% and 90m for 7% grade.
A Comparison Between Round Loop and Existing Octagonal Loop Detectors
Journal of Korean Society of Transportation, volume 12, issue 4, 1994, Pages 35~52
In order to operate the computerized traffic signal system, it requires the detectors which ensure the exact detections of actual traffic data (e.g., traffic volume, occupancy and velocity of vehicles). The octagonal detectors are used currently in Korea. However, the maintenance of the detectors has many problems with the road repairs and the constructions on the pavement, and failure due to the disconnection of the wires. Serious delay due to the long installation time of loops also causes the traffic disturbances. The low sensitivities and splash-over effect can sometimes create error data after installation of the octagonal loops. The mai purpose of this study is to evaluate the feasibility of domestic use of the round (circular) inductive loops which developed recently in U.S.A. It was found that the round loops are comparable to the existing octagonal loops. In addition, the use of the high quality of materials in the round loop system can reduce the current problems and weakpoints of the octagonal loops. The installation cost of the round loop was found out as economic as the octagonal loop. The installation time of the round loop system can be reduced with the specially equipped loop truck, and wide/deep slots without sharp corners can extend the durability without serious stress of loop head wires. In conclusion, the round loop is superior to the octagonal type in overall points. It is recommended that the localization of the materials and equipments of round loop system is required to carry out the extensive local installations. Also, several contractors to meet the nationwide demand should be arranged to gurantee the proper maintenance and operation of the systems.
AN INTEGRATED URBAN MODEL : A COMBINATION OF AN URBAN ECONOMIC MODEL AND TRANSPORTATION-LAND USE MODELS
Journal of Korean Society of Transportation, volume 12, issue 4, 1994, Pages 53~63
A Spatial Pattern of An Optimal Transportation Pricing Structure; -Based on the result of a local solution-
Journal of Korean Society of Transportation, volume 12, issue 4, 1994, Pages 65~88
A Discrete Time Queueing Model for Intersection Analysis
Journal of Korean Society of Transportation, volume 12, issue 4, 1994, Pages 89~97
Evaluating the Effectiveness of Employer-based Transportation Demand Management(TDM) Programs; A Case of Regulation XV in Southern California
Journal of Korean Society of Transportation, volume 12, issue 4, 1994, Pages 99~118
This study is designed to evaluate the effectiveness of TDM as a peak-period trip reduction strategy. This effort uses as a case study, the implementation of Regulation XV (REGXV) in Southern California, the most ambitious and far reaching employer-based ridesharing program implemented to date. This study explores the program effectiveness in terms of three aspects ; employee travel behavior changes after implementating Regulation XV, TDM programs offered by employers subjects to Regulation XV, and causal relationship between employee travel behavior changes and employer-based TDM programs. The study finds that Regualtion XV has a small, but statistically significant positive impact on AVR change. Popular incentives used by employers are less costly and easy to implement rather than to be effective. The increase in AVR is associated with increases of carpools promoted by strong incentives such as monetary subsides. A large number of indirect incentive programs are not effective. The study concludes that employers need to invest heavily on strong incentives, rather than on proposing diverse incentives, to comply with REGXV.
A Study on Measurement of Traffic Flow with Processing of Video Signal
Journal of Korean Society of Transportation, volume 12, issue 4, 1994, Pages 119~129
This paper describes system and its algorithm which can measure traffic flow on the road by using industrial television applied in industry. This algorithm is using the real-time processing of dynamic scenes. The processing algorithm of dynamic scenes is developed and proved its validity by designing VISC (Video Information Sampler and Converter). The accuracy of this algorithm is enhanced by allocating sampling points in cross-direction of the vehicles.
A Behavioral Analysis of automobil users apply consection toll theory
Journal of Korean Society of Transportation, volume 12, issue 4, 1994, Pages 131~151
An investigation is given to a behavioral analysis of automobile users applying congestion toll theory for the purpose of maintaining the efficiency of transportation system. A case study is performed for the city of Seoul, where modal split behavior of automobile user groups is analysed in various level of congestion toll. Automobile users are grouped with respect to their income levels and work shift times. Automobile user behavior is then explained against the field data. A Logit-type model is applied for modal split changes through the application of congestion toll. It is found in the case study that the users in the monthly income bracket of 1.0~1.5 million won is the most predictable group whose work travel time begins 7:00~9:00 a.m. It is also found in the study that 1,000~1,500 won of congestion toll whould reduce the auto use as much as 5%.