[논문]현장적용을 위한 연동형 반감응 신호제어 개발 및 분석

박순용; 이석기; 정준화

doi:10.5392/jkca.2014.14.03.451

현장적용을 위한 연동형 반감응 신호제어 개발 및 분석
Developing and Evaluation of Coordinated Semi-Actuated Signal Control for Field Application 원문보기

한국콘텐츠학회논문지 = The Journal of the Korea Contents Association, v.14 no.3, 2014년, pp.451 - 462

박순용 (한국건설기술연구원 SOC성능연구소 도로교통연구실) , 이석기 (한국건설기술연구원 SOC성능연구소 도로교통연구실) , 정준화 (한국건설기술연구원 SOC성능연구소 도로교통연구실)

초록
AI-Helper

본 연구에서는 지방부 간선 또는 지선 축에서 효과적으로 사용 가능한 연동형 반감응 신호제어 알고리즘을 개발하고 이를 평가하였다. 연동형 반감응 신호제어에 대한 모의실험 결과를 살펴보면, 주 부 도로의 교통량 차이가 커질수록 연동형 반감응 신호제어의 지체가 최적화된 고정식 신호제어에 비해 감소하는 것을 확인하였다. 그러나 주부도로의 교통량이 같거나 전체 교통량이 많아지면 최적화된 고정식 신호제어의 지체가 더 낮게 나타났으며, 횡단 보행량이 많아질수록 차량 지체가 증가하는 것으로 확인되었다. 따라서 연동형 반감응 신호제어는 차량 교통량이 일정수준 이하인 곳에 적용하되, 횡단 보행량을 고려하여 적용지역을 선별해야 할 것이다.

Abstract ▼ AI-Helper

In this paper, Coordinated Semi-Actuated Signal Control algorithm was developed and evaluated. According to the analysis of simulation, the coordinated semi-actuated signal control led to reduced vehicle delay as the difference of traffic volume between major and minor streets was getting bigger. But when there was relatively high traffic volume, or the equivalent amount of traffic volume on major and minor streets, optimized pre-timed signal control was verified to lower delay times compared to coordinated semi-actuated signal control; however, it might increase pedestrian delay. Therefore, the coordinated semi-actuated signal control should be implemented at intersections where traffic volume is relatively low.

주제어

AI 본문요약
AI-Helper

* AI 자동 식별 결과로 적합하지 않은 문장이 있을 수 있으니, 이용에 유의하시기 바랍니다.

문제 정의

These values did not reflect the latest calculation method of minimum and maximum green time which was proposed by Kim and Courage[3] and Zhang and Wang[4]. The aim of this research did not develop an optimal signal timing of a coordinated semi-actuated signal control. Hence, maximum green duration was set to 30 from 60 seconds that is generally used in a coordinated semi-actuated signal control.
The aim of this study is to develop a coordinated semi-actuated signal control algorithm which can maximize coordinated effects between Sub-Critical Intersections (SCIs) and Minor Intersections (MIs), and evaluate its performance. This is the basic framework which allows maximization of effects of a coordinated corridor through this algorithm, even if this corridor does not include Critical Intersections (CIs).

가설 설정

In this study, the straight phase of a main road was set as the cycle length of the maximum green interval. It is because the straight, and left turn on a minor road, and left turn on a main road, can be omitted and the extra time can be used at coordinated phase of the main road.

제안 방법

In the future, research on saturated condition of a corridor should be considered. And also, optimized operation parameters are required for improving its performance and appling on field by calibration and validation of simulation.
In this study new signal control algorithms were developed, and the evaluation process was performed to enhance corridor performance. For further development, an appropriate simulator should be adopted to implement and evaluate the algorithms. All of the algorithms of this research were implemented by VisVAP of VISSIM.
Considering the vehicle and pedestrian delays, the application conditions of the coordinated semi-actuated signal control could be summarized as Table 5. However these results came from the statistical comparison of the optimized TOD with the coordinated semi-actuated signal control. Therefore, in general situation which traffic volume is fluctuated in a short duration, the coordinated semi-actuated signal control might be more effective than TOD.
In this study new signal control algorithms were developed, and the evaluation process was performed to enhance corridor performance. For further development, an appropriate simulator should be adopted to implement and evaluate the algorithms.
In this study, a coordinated semi-actuated signal control algorithm was developed to quickly adapt to traffic demand and to operate coordination at a rural arterial or a local corridor. The algorithm can be efficiently used in a minor road which are less in both traffic volumes and pedestrians than in the major one.
In this study, the coordinated Semi-actuated Signal Control algorithm was applied to maintain the dual ring system suggested by NEMA, and to establish its coordination phase with phase 2 and 6. Moreover, some of the actuated signal operation methods including green extension, phase skip, gap out, and pedestrian actuation signals were realized.
To analyze the coordinated semi-actuated signal control, 56 scenarios of TOD signal control were composed as well. It was prepared to be used as an objective comparison index, and signal control timings used in the TOD signal control were optimized with SYNCHRO version 5.0, a signal optimization program. The turning ratios of each scenario were set at 10%, 80%, and 10% in left, through, and right movements respectively; and a rate of heavy vehicles was set as 2%.
The developed new signal control algorithms were evaluated on various scenarios according to the change of volume per saturation ratio for one hour time period by simulation. The evaluation criterion of the simulation was by average delay.
1. The simulation was estimated with comparison to the optimized fixed signal control, with the coordinated semi-actuated signal control, on the vehicle and pedestrian delay.
The simulation was executed with pedestrian volumes which were 12, 20, 40, 60, 80, 100, 120 and 160 and with vehicle v/s ratios which were distinguished into major and minor streets from 0.4 to 0.1. The simulation was estimated with comparison to the optimized fixed signal control, with the coordinated semi-actuated signal control, on the vehicle and pedestrian delay.
0, a signal optimization program. The turning ratios of each scenario were set at 10%, 80%, and 10% in left, through, and right movements respectively; and a rate of heavy vehicles was set as 2%. The offset used at the coordinated semi-actuated signal control was the same as the TOD signal control.
And Kim (2011) estimated semi-actuated signal control of NEMA by processing of validation and calibration[8]. These studies were not development of semi-actuated signal control algorithm but appreciation of existing optimized model and algorithm. Ko (2011) evaluated pedestrian actuated semi-actuated signal control[9].
Zhang and Wang (2011) studied the optimal minimum and maximum green time. This research approached a stochastic model established to dynamically optimize the minimum and maximum green time using VISSIM. However, theses studies were focused on isolated intersections under fully actuated signal control[4].
The most commonly used microscopic traffic simulations are CORSIM, PARAMICS, and VISSIM. VISSIM which could realize the coordinated semi-actuated signal control suggested by this study was applied to verify some additional functions such as a pedestrian actuation function. VISSIM can add a new algorithm using Application Programming Interface (API) and Vehicle Actuated Programming (VAP).

대상 데이터

The detector located at the stop line is a long loop type detector with a length of 8 meters and composed in the presence mode, and the detector installed at approaches where a rear of the stop line is a pulse mode and its length is five meters. The installation location is 30 meters (left turn lane) or 50 meters (straight lane) from the stop line.

데이터처리

The developed signal control algorithm was compared with TOD control optimized by SYNCHRO. The simulation to derive the delay was VISSIM, and the results of delay were verified through the statistical analysis.
The statistical analysis was estimated with the paired t-test on the average delay, since the traffic volume and the geometric design of these two groups were the same besides the signal control system, so that it could not be seen as independent samples. The hypothesis of the statistical validation to inspect the average delay, is the MOE of the coordinated semi-actuated signal control and the optimized TOD signal control, is as follows equation (1).

이론/모형

For further development, an appropriate simulator should be adopted to implement and evaluate the algorithms. All of the algorithms of this research were implemented by VisVAP of VISSIM.
The semi-actuated signal control for coordination in a rural arterial, or corridor, can be implemented at an intersection where the number of pedestrians and traffic volume of a minor road is less than a major road. In this study, the coordinated semi-Actuated signal control algorithm was developed. This algorithm can maintain the dual ring system suggested by NEMA, and includes green extension, phase skip, gap out and a pedestrian actuation functions.
Kim and Courage (2003) proposed to find the optimal solution to minimize the intersection control delay[3]. This solution was utilizing hybrid genetic algorithm and hill climbing search method, and evaluated by the CORSIM RTE. Zhang and Wang (2011) studied the optimal minimum and maximum green time.

후속연구

It would be ideal to evaluate effectiveness of the coordinated semi-actuated signal control with a before-and-after study comparing the existing system. Unfortunately there are a number of practical limitations to conducting a before-and-after study such as economical issues, time issues and traffic accidents.

참고문헌 (11)

ITE, TRAFFIC SIGNAL TIMING MANUAL. Institute of Transportation Engineers, Washington, DC, USA, 2009.
FHWA, Traffic Control System Handbook. Federal Highway Administration, USA, 1985.
J. T. Kim and Kenneth G. Courage, "Evaluation and design of maximum green time settings for traffic actuated control," Transportation Research Record 1852, pp.246-255, National Research Council, Washington, D.C., 2003.
G. H. Zhang and Y. H. Wang, "Optimizing Minimum and Maximum Green Time Settings for Traffic Actuated Control at Isolated Intersections," IEEE Intelligent Transportations System, Vol.12, pp.164-173, 2011.

상세보기
G. E. Shoup and D. Bullock, "Dynamic Offset Tuning Procedure Using Travel Time Data," Transportation Research Record No.1683, Transportation Research Board, Washington, D.C., pp.84-94, 1999.
Y. Yin, M. Li, and A. Skabardonis, "Offline Offset Refiner for Coordinated Actuated Signal Control Systems," Jouranl of Transportation Engineering, Vol.133, No.7, pp.423-432, 2007.

상세보기
M. S. Kang, Actuated Signal Control for Improvement of Corridor's Speed on Arterial, Master's Thesis, The University of Seoul, 2008.
S. J. Kim, Effectiveness Evaluation of the Semi-Actuated Signal control system Installation, Master's Thesis, Ajou University, 2011.
S. J. Ko, Study on Delay Reductions at Four-Leg Intersections by Adopting Semi-Actuated Signal Control and Pedestrian Push-Button, Master's Thesis, Ajou University, 2011.
TRB, Highway Capacity Manual 2000. Transportation Research Board, National Research Council, Washington, D. C., 2000.
J. T. Kim, Development and Testing of Computational Procedures for Signal Timing Design at Isolated Intersections. Ph. D. thesis, University of Florida, USA, 2001.

저자의 다른 논문 :

LOADING...

표제어: PCR

동의어: Packet Collision Rate

용어 설명 출처 목록 (6)

용어 설명: PCR은 세균 특이성이 있는 primer를 이용하여 적은 수의 세균이 있을지라도 쉽게 검출할 수 있는 유용한 방법이며, 이를 이용하여 구강 내 치면세균막이나 타액에서 직접 세균을 검출할 수 있게 되었다[8].

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 논문명, 저널/프로시딩명, 저자 , 발행년, 권, 호, 시작페이지, 끝페이지, 발행기관 관리번호, 논문명, 대등논문명, 저자 , 저널/프로시딩명, 발행기관, 발행년, 발행언어, 권, 호, 시작페이지, 끝페이지, ISBN, ISSN, 주제분야, 키워드, 초록(한글), 초록(영문), 저자(소속기관)
저장형식	Text(ASCII format) Excel format RefWorks Direct Export RIS format (for Reference Manager, ProCite, EndNote), Scholar's Aids, Mendeley
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증