00677651

Component

http://onlinepubs.trb.org...trr/1994/1457/1457-011.pdf

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

An exploratory procedure for analyzing the permitted left-turn capacity with exclusive lanes is presented, including several empirical models for opposing queue length prediction, permitted saturation flow of mixed traffic, and effect of bay length on the left-turn capacity. Some critical factors, such as the number of opposing lanes and the interactions between upstream and downstream green time-cycle length ratios, have been incorporated in the proposed procedures for capacity estimation. A discrete choice modeling methodology has been applied to predict the fraction of time in a cycle during which the through queue length may be over a certain distance. Such a model enables traffic engineers to determine the left-turn bay length from a cost-benefit perspective. It should be noted that all proposed empirical models are grounded on the simulation experiments with TRAF-NETSIM. Hence, adjustments or modifications may be necessary after extensive field observations are conducted to calibrate TRAF-NETSIM.

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. 96-103

1994

Transportation Research Record

0309061008

Figures (6) ; References (9) ; Tables (1)

Benefit cost analysis; Choice models; Empirical methods; Green interval (Traffic signal cycle); Left turn lanes; Queuing; Traffic signal cycle

Discrete choice models; Queue length

Highways; Operations and Traffic Management; I71: Traffic Theory

TRIS, TRB

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 GREEN TIMES AND CYCLE TIME FOR VEHICLE-ACTUATED SIGNALS
• 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
• 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