00489667

Component

http://onlinepubs.trb.org...trr/1988/1194/1194-005.pdf

https://scholar.google.co...iams&publication_year=1988

The assumption of independent vehicle arrivals at traffic signals, such as that in the Poisson distribution, has been widely used for modelling delay at urban intersections. The degree of correlation among vehicles determines whether this convenient assumption of independence is realistic. Collection of vehicle headways seems to be the only well-known method by which an estimate of their autocorrelation can be found. This, however, is a tedious and time-consuming task. To cope with this problem, an effective methodology using a discrete model for estimating the degree of interaction among vehicles under given traffic and geometric conditions is proposed in the present study. As an example of this technique's usefulness, a model is proposed and estimated, using information collected from 40 locations. Preliminary results appear to confirm the strength and applicability of the proposed method even though the developed model is constrained by the limited available data.

This paper appears in Transportation Research Record No. 1194, Traffic Flow Theory and Highway 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

01413996

p. 42-47

1988

Transportation Research Record

030904765X

Figures (1) ; References (19) ; Tables (2)

Autocorrelation; Estimating; Field studies; Mathematical models; Methodology; Signalized intersections

Field data; Interaction; Models

Highways; Operations and Traffic Management; I71: Traffic Theory

TRIS, TRB, ATRI

Nov 30 1989 12:00AM

• ANALYSIS OF PLATOON DISPERSION WITH RESPECT TO TRAFFIC VOLUME
• ANALYSIS OF TRAFFIC FLOW AT COMPLEX CONGESTED ARTERIALS
• APPLICATION OF THE IMAGE ANALYSIS TECHNIQUE TO DETECT LEFT-TURNING VEHICLES AT INTERSECTIONS
• CAPACITY ANALYSIS OF TWO-LANE HIGHWAYS
• CARSIM: CAR-FOLLOWING MODEL FOR SIMULATION OF TRAFFIC IN NORMAL AND STOP-AND-GO CONDITIONS
• COMPARATIVE ANALYSIS OF TWO LOGICS FOR ADAPTIVE CONTROL OF ISOLATED INTERSECTIONS
• COMPUTATION OF SIGNALIZED INTERSECTION SERVICE VOLUMES USING THE 1985 HIGHWAY CAPACITY MANUAL (WITH DISCUSSION AND CLOSURE)
• CRITICAL MOVEMENT ANALYSIS FOR SHARED LEFT TURN LANES
• EFFECT OF WEATHER ON THE RELATIONSHIP BETWEEN FLOW AND OCCUPANCY ON FREEWAYS
• EXAMINATION OF SHARED LANE OPERATIONS
• GENERATING PARTIAL ORIGIN-DESTINATION TABLES FOR STREAMLINED APPLICATION OF CORRIDOR MODELS
• MODELING OF SHARED LANE USE IN TRANSYT-7F
• MODELING THE EFFECT OF TRAFFIC SIGNAL PROGRESSION ON DELAY
• NEW ALGORITHM FOR SOLVING THE MAXIMUM PROGRESSION BANDWIDTH (WITH DISCUSSION AND CLOSURE)
• SOME NEW DATA THAT CHALLENGE SOME OLD IDEAS ABOUT SPEED-FLOW RELATIONSHIPS
• SOME PROPERTIES OF MACROSCOPIC TRAFFIC MODELS
• TRAFFIC DISTRIBUTION FITTING: A SYSTEMATIC METHODOLOGY
• VALIDATION OF SATURATION FLOWS AND PROGRESSION FACTORS FOR TRAFFIC-ACTUATED SIGNALS
• VOLUME-BASED MODEL FOR FORECASTING TRUCK LANE USE ON THE RURAL INTERSTATE
• WEAVSIM: A MICROSCOPIC SIMULATION MODEL OF FREEWAY WEAVING SECTIONS
• WORK ZONE ANALYSIS MODEL FOR THE SIGNALIZED ARTERIAL