00819917

Component

https://doi.org/10.3141/1748-02

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

An approach for the real-time recognition of vehicle platoons based on the time epochs of vehicles passing over a point (detector) on a link is introduced. Since platoons on a link depend on its traffic volume and the distribution of the vehicle headways, the algorithm first computes second-by-second vehicle density (vehicles per second) for each network link. To identify platoon beginnings and endings, this link density is multiplied by two fixed factors, one greater than 1 and the other less than 1, to obtain upper link density and lower link density, respectively; these are subsequently utilized in the platoon-recognition process. Using detector data from microsimulations of traffic scenarios, the platoon-recognition method is evaluated with respect to the following measures of effectiveness: percentage of vehicles captured in platoons, platoon size distribution, platoon densities, number of platoons versus percentage of free time (defined as the time between platoons), model robustness, and computational time.

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

English

p. 8-17

2001

Transportation Research Record

0309072077

Figures (8) ; References (9)

Algorithms; Detectors; Mathematical models; Microsimulation; Network links; Real time data processing; Traffic density; Traffic platooning

Computational time

Highways; Operations and Traffic Management; I73: Traffic Control

TRIS, TRB, ATRI

Nov 2 2001 12:00AM

• ASSESSMENT OF STOCHASTIC SIGNAL OPTIMIZATION METHOD USING MICROSIMULATION
• BREAKDOWN-RELATED CAPACITY FOR FREEWAY WITH RAMP METERING
• 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
• 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