00819929

Component

https://doi.org/10.3141/1748-14

http://scholar.google.com...Look&publication_year=2001

Research was conducted to better understand the breakdown phenomenon and look for ways of strategically increasing capacity and travel speed by reducing breakdowns on a section of freeway in Mississauga, Ontario, that is subject to ramp metering. The major task was to quantify the probability of breakdown as an increasing function of volume at the critical location. Data from 71 peak periods during which breakdown occurred at the critical merge were used to estimate the function, which was then used in a computer simulation of fixed- and variable-rate metering to demonstrate the potential benefits of using the probability-of-breakdown concept as a basis for ramp metering. The results indicate, for example, that variable-rate metering that complements a constant merge flow limit of 2,320 veh/h per lane could increase peak-hour throughput from about 6,460 to 6,600 veh/h at this location. They also indicate that 2,500 veh/h might be allowed, provided stringent metering for quick recovery to free flow is feasible.

This paper appears in Transportation Research Record No. 1748, Advanced Traffic Management Systems and Vehicle-Highway Automation 2001.

English

p. 110-115

2001

Transportation Research Record

0309072077

Figures (6) ; References (5) ; Tables (4)

Freeways; Highway capacity; Merging traffic; Peak periods; Ramp metering; Traffic simulation; Traffic speed

Traffic flow breakdown; Traffic throughput

Mississauga (Canada)

Highways; Operations and Traffic Management; I73: Traffic Control

TRIS, TRB, ATRI

Nov 2 2001 12:00AM

• ASSESSMENT OF STOCHASTIC SIGNAL OPTIMIZATION METHOD USING MICROSIMULATION
• COMPARATIVE ANALYSIS OF OPERATIONAL ALGORITHMS FOR COORDINATED RAMP METERING
• COMPARISON OF TRANSIMS AND CORSIM TRAFFIC SIGNAL SIMULATION MODULES
• CONFIGURATION MANAGEMENT IN TRANSPORTATION MANAGEMENT SYSTEMS: EVALUATION OF NEED
• FREEWAY CRASH TIMELINE CHARACTERISTICS AND USES
• FREEWAY PERFORMANCE MEASUREMENT SYSTEM: MINING LOOP DETECTOR DATA
• METHOD FOR REAL-TIME RECOGNITION OF VEHICLE PLATOONS
• MODELING EFFECTS OF DRIVER CONTROL ASSISTANCE SYSTEMS ON TRAFFIC
• MODIFYING SIGNAL TIMING DURING INCLEMENT WEATHER
• MONITORING URBAN FREEWAY INCIDENTS BY WIRELESS COMMUNICATIONS
• MULTISTAGE STOCHASTIC SYSTEM OPTIMUM DYNAMIC TRAFFIC ASSIGNMENT PROGRAM WITH RECOURSE FOR INCIDENT TRAFFIC MANAGEMENT
• ONLINE TURNING PROPORTION ESTIMATION IN REAL-TIME TRAFFIC-ADAPTIVE SIGNAL CONTROL
• OPTIMAL COORDINATED RAMP METERING WITH ADVANCED MOTORWAY OPTIMAL CONTROL
• PEDESTRIAN TIMING ALTERNATIVES AND IMPACTS ON COORDINATED SIGNAL SYSTEMS UNDER SPLIT-PHASING OPERATIONS
• REAL-TIME OFFSET TRANSITIONING ALGORITHM FOR COORDINATING TRAFFIC SIGNALS
• STAKEHOLDER REQUIREMENTS FOR TRAFFIC SIGNAL PREEMPTION AND PRIORITY IN WASHINGTON, D.C., REGION
• TEXAS DRIVER UNDERSTANDING OF ABBREVIATIONS FOR CHANGEABLE MESSAGE SIGNS
• TRANSITION STRATEGIES TO EXIT PREEMPTION CONTROL: STATE-OF-THE-PRACTICE ASSESSMENT
• TRICEPS-CARTESIUS: ADVANCED TRANSPORTATION MANAGEMENT SYSTEM TEST BED FOR EVALUATION OF INTERJURISDICTIONAL TRAFFIC MANAGEMENT STRATEGIES
• VISION-BASED STOP SIGN DETECTION AND RECOGNITION SYSTEM FOR INTELLIGENT VEHICLES