00677648

Component

http://onlinepubs.trb.org...trr/1994/1457/1457-008.pdf

https://scholar.google.co...elik&publication_year=1994

An analytical method for estimating average green times and cycle time of vehicle-actuated signals is presented. The examination is limited to the operation of a basic actuated controller that uses passage detectors and a fixed gap time setting. Both fully actuated and semiactuated control cases are discussed. The practical cycle and green time method for computing fixed-time signal settings is also outlined. A discussion of the arrival headway distributions is presented since the estimation of arrival headways is fundamental to the modeling of actuated signal timings. The method given provides essential information for predicting the performance characteristics (capacity, degree of saturation, delay, queue length, and stop rate) of intersections controlled by actuated signals and for investigating the optimization of actuated controller settings. Further work is needed to validate and calibrate the formulas given using real-life and simulation data.

This paper appears in Transportation Research Record No. 1457, Part 2, Traffic Flow and Capacity. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01396804

English

p. 63-72

1994

Transportation Research Record

0309061008

Figures (6) ; References (18)

Distributions (Statistics); Forecasting; Green interval (Traffic signal cycle); Headways; Intersections; Optimization; Performance; Pretimed traffic signal controllers; Schedules; Semi traffic actuated controllers; Traffic actuated controllers; Traffic signal cycle; Traffic signal timing

Performance characteristics

Highways; Operations and Traffic Management; I73: Traffic Control

TRIS, TRB, ATRI

May 11 1995 12:00AM

• ANALYSIS OF CORRELATION BETWEEN ARTERIAL TRAVEL TIME AND DETECTOR DATA FROM SIMULATION AND FIELD STUDIES
• CALIBRATION OF INTRAS FOR SIMULATION OF 30-SEC LOOP DETECTOR OUTPUT
• CASE STUDY INVESTIGATION OF TRAFFIC CIRCLE CAPACITY
• COMPARISON OF UNCONGESTED SPEED-FLOW RELATIONSHIPS USING DATA FROM GERMAN AUTOBAHNS AND NORTH AMERICAN FREEWAYS
• DEVELOPMENT AND COMPARATIVE EVALUATION OF HIGH-ORDER TRAFFIC FLOW MODELS
• DISTRIBUTION-FREE MODEL FOR ESTIMATING RANDOM QUEUES IN SIGNALIZED NETWORKS
• ECONOMIC FEASIBILITY ASSESSMENT PROCEDURE FOR CLIMBING LANES ON TWO-LANE ROADS IN MEXICO
• EFFECT OF ADVERSE WEATHER CONDITIONS ON SPEED-FLOW-OCCUPANCY RELATIONSHIPS
• ESTIMATING DESTINATION-SPECIFIC TRAFFIC DENSITIES ON URBAN FREEWAYS FOR ADVANCED TRAFFIC MANAGEMENT
• ESTIMATING FREEWAY ORIGIN-DESTINATION PATTERNS USING AUTOMATION TRAFFIC COUNTS
• ESTIMATION OF SPEEDS FROM SINGLE-LOOP FREEWAY FLOW AND OCCUPANCY DATA USING CUSP CATASTROPHE THEORY MODEL
• LEVEL OF SERVICE OF TWO-LANE RURAL HIGHWAYS WITH LOW DESIGN SPEEDS
• METHODOLOGY FOR DETERMINING LEVEL OF SERVICE CATEGORIES USING ATTITUDINAL DATA
• OPERATIONAL CHARACTERISTICS OF TRIPLE LEFT TURNS
• OVERFLOW DELAY ESTIMATION FOR A SIMPLE INTERSECTION WITH FULLY ACTUATED SIGNAL CONTROL
• PERMITTED LEFT-TURN CAPACITY OF EXCLUSIVE LANES: SIMULATION-BASED EMPIRICAL METHOD
• PROPOSED ANALYTICAL TECHNIQUE FOR ANALYZING TYPE A WEAVING SECTIONS ON FRONTAGE ROADS
• REVISIONS TO LEVEL D METHODOLOGY OF ANALYZING FREEWAY RAMP WEAVING SECTIONS
• SATURATION HEADWAYS AT STOP-CONTROLLED INTERSECTIONS
• TOWARD THE USE OF DETECTOR OUTPUT FOR ARTERIAL LINK TRAVEL TIME ESTIMATION: A LITERATURE REVIEW
• TRAFFIC MANAGEMENT FROM THEORY TO PRACTICE: PAST, PRESENT, FUTURE
• USE OF DEFAULT PARAMETERS FOR ESTIMATING SIGNALIZED INTERSECTION LEVEL OF SERVICE
• USING NEURAL NETWORKS TO SYNTHESIZE ORIGIN-DESTINATION FLOWS IN A TRAFFIC CIRCLE
• VARIABILITY ANALYSIS OF TRAFFIC SIMULATION OUTPUTS: PRACTICAL APPROACH FOR TRAF-NETSIM