00605653

Component

http://onlinepubs.trb.org...trr/1990/1287/1287-019.pdf

https://scholar.google.co...rowe&publication_year=1990

Traffic conflicts are good surrogates for accidents when sufficient accident data are not available but the conflict technique can be used to identify safety problems. Extensive research has previously been performed on four-leg intersections, and average and abnormally high values for traffic conflicts have been identified for them. Such information for three-leg, unsignalized intersections is not currently available. The method detailed in "Traffic Conflict Techniques for Safety and Operations" published by the U.S. Department of Transportation, FHWA, was used to identify average and abnormally high values for traffic conflicts at three-leg, unsignalized intersections. The data on which the conclusions were based were collected during the summer of 1989 in the Houston, Texas, area with most intersections located on two-lane, undivided roadways. The conclusions were limited to daytime (7:00 a.m. to 6:00 p.m.) and weekday (Monday through Friday) traffic, and to dry-pavement conditions. The results can be used to evaluate comparable three-leg, unsignalized intersections by the traffic conflict technique.

This paper appears in Transportation Research Record No. 1287, Traffic Flow, Capacity, Roadway Lighting, and Urban Traffic Systems 1990. 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

01411069

p. 185-194

1990

Transportation Research Record

0309050626

Figures (8) ; Photos (2) ; References (4) ; Tables (4)

Three leg intersections; Traffic conflicts; Two lane highways; Unsignalized intersections

Houston (Texas)

Highways; Operations and Traffic Management; Safety and Human Factors; I71: Traffic Theory; I82: Accidents and Transport Infrastructure

TRIS, TRB, ATRI

Mar 31 1991 12:00AM

• ADAPTIVE FORECASTING OF FREEWAY TRAFFIC CONGESTION
• CAPACITY AND DELAY ESTIMATION FOR PRIORITY UNSIGNALIZED INTERSECTIONS: CONCEPTUAL AND EMPIRICAL ISSUES
• CAPACITY AND SPEED-FLOW ANALYSIS OF THE QUEEN ELIZABETH WAY IN ONTARIO
• COMBINED EFFECT OF RADIUS AND PEDESTRIANS ON RIGHT-TURN SATURATION FLOW AT SIGNALIZED INTERSECTIONS
• CONFLICT SIMULATION IN INTRAS: APPLICATION TO WEAVING AREA CAPACITY ANALYSIS
• CONGESTION IDENTIFICATION ASPECTS OF THE MCMASTER INCIDENT DETECTION ALGORITHM
• CONSPICUITY OF RETROREFLECTIVE SIGNS AND DEVICES AT NIGHT WHEN DRIVING WITH ONLY ONE HEADLAMP WORKING
• COUNTERBEAM LIGHTING, A PROVEN ALTERNATIVE FOR THE LIGHTING OF THE ENTRANCE ZONES OF ROAD TUNNELS
• DETECTING ERRONEOUS LOOP DETECTOR DATA IN A FREEWAY TRAFFIC MANAGEMENT SYSTEM
• ESTIMATING AVERAGE CYCLE LENGTHS AND GREEN INTERVALS OF SEMIACTUATED SIGNAL OPERATIONS FOR LEVEL-OF-SERVICE ANALYSIS
• ESTIMATING CAPACITY OF AN ALL-WAY-STOP-CONTROLLED INTERSECTION
• FLOW PROCESSES AT A FREEWAY BOTTLENECK
• LATE-NIGHT TRAFFIC SIGNAL CONTROL STRATEGIES FOR ARTERIAL SYSTEMS
• MEASURING DELAY AND SIMULATING PERFORMANCE AT ISOLATED SIGNALIZED INTERSECTIONS USING CUMULATIVE CURVES
• MEASURING LEVEL OF SERVICE OF TWO-LANE HIGHWAYS BY OVERTAKINGS
• MODEL OF TURNING MOVEMENT PROPENSITY
• MODELING THE LEFT-TURN ADJUSTMENT FACTOR FOR PERMITTED LEFT TURNS MADE FROM SHARED LANE GROUPS
• MULTIBAND--A VARIABLE-BANDWIDTH ARTERIAL PROGRESSION SCHEME
• ON-LINE DIVERSION PREDICTION FOR DYNAMIC CONTROL AND VEHICLE GUIDANCE IN FREEWAY CORRIDORS
• PREDICTION OF TRAFFIC FLOW BY AN ADAPTIVE PREDICTION SYSTEM
• SIMULTANEOUS OPTIMIZATION OF SIGNAL SETTINGS AND LEFT-TURN TREATMENTS
• TESTING AND FIELD IMPLEMENTATION OF THE MINNESOTA VIDEO DETECTION SYSTEM (AUTOSCOPE)
• TRAFFIC SIGNAL DELAY MODEL FOR NONUNIFORM ARRIVALS
• WASHINGTON STATE UNIVERSITY PARKING ACTION PLAN--A CAMPUS PARKING CASE STUDY