00605651

Component

http://onlinepubs.trb.org...trr/1990/1287/1287-017.pdf

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

Automatic detection of incidents on a freeway traffic management system (FTMS) can be thought of as two distinct tasks. The first is the detection of congestion and the second is the determination of whether or not the congestion is incident related. Development and testing of the congestion detection task for a new incident detection algorithm for an FTMS are described. A new logic has recently been proposed for the determination of whether congestion is recurrent or incident caused. The congestion detection logic uses flow, occupancy, and speed (if available) from a single station to automatically detect congestion near that station. This logic has been subjected to on- and off-line tests on a system on which congestion is largely incident related. The results show a good false-alarm rate and a high detection rate, with some incidents detected earlier than they were identified by FTMS operators.

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. 167-175

1990

Transportation Research Record

0309050626

Figures (5) ; References (15) ; Tables (1)

Algorithms; Detection and identification; Detectors; Freeways; Highway traffic control; Identification systems; Logic; Performance; Traffic congestion; Traffic incidents

Identification; Incidents

Highways; Operations and Traffic Management; I73: Traffic Control

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
• 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 CONFLICT VALUES FOR THREE-LEG, UNSIGNALIZED INTERSECTIONS
• TRAFFIC SIGNAL DELAY MODEL FOR NONUNIFORM ARRIVALS
• WASHINGTON STATE UNIVERSITY PARKING ACTION PLAN--A CAMPUS PARKING CASE STUDY