01049359

Component

https://doi.org/10.3141/2000-15

http://scholar.google.com...gler&publication_year=2007

Cooperative vehicle systems (CVS) can provide intelligent transportation systems services such as probe vehicle information and hazard warnings by exchanging data among suitably equipped vehicles as they travel. The sensitivity of the performance of CVS to the market penetration of suitably equipped vehicles is explained by using Monte Carlo analyses and simulations of wireless message propagation. The CVS functions are implemented by using wireless vehicle–vehicle data communications, which can be successful only when other equipped vehicles exist within wireless range to receive the messages and relay them to further vehicles. These relays may be accomplished by direct wireless transmission to nearby vehicles, but they may also be facilitated by transport relay, by which vehicles traveling in the opposite direction carry the messages and rebroadcast them to the vehicles that they pass. The effectiveness of both direct and transport relay mechanisms as a function of wireless communication range, market penetration, and traffic density and their influence on the speed of message propagation is shown. The direct relay is most effective with a high density of equipped vehicles, but when the density of equipped vehicles is low, the relays become much more dependent on the slower transport relay. When the market penetration is low early in the development of CVS, the most promising use cases are likely to be those that do not require rapid message propagation.

01080855

English

pp 121-127

2007

Transportation Research Record: Journal of the Transportation Research Board

9780309104265

Print

Figures (6) ; References (8) ; Tables (2)

Information systems; Intelligent transportation systems; Market penetration; Messages (Communications); Monte Carlo method; Performance; Probe vehicles; Traffic density; Vehicle to vehicle communications; Warning systems; Wireless communication systems

Cooperative systems; System performance

Highways; Operations and Traffic Management; I73: Traffic Control

TRIS, TRB, ATRI

Feb 8 2007 6:18PM

• Adaptive Route Choice Model for Intelligent Route Guidance Using a Rule-Based Approach
• Benefits Analysis for Incident Management Program Integrated with Intelligent Transportation Systems Operations: Case Study
• Clustering-Based Methodology for Determining Optimal Roadway Configuration of Detectors for Travel Time Estimation
• Dedicated Short-Range Communications Technology for Freeway Incident Detection: Performance Assessment Based on Traffic Simulation Data
• Effect of Environmental Conditions on Performance of Image Recognition–Based Lane Departure Warning System
• Evaluation of Forward Collision Warning System for Urban Driving
• Extending Adaptive Cruise Control to Adaptive Driving Strategies
• Intelligent Transportation Systems for Operation of Roadway Segments in High-Wind Conditions
• Investigating Limits of Benefits Provided by Variable Message Signs in Urban Network
• Investigation into Shadow Removal from Traffic Images
• Monte Carlo Simulation Model of Intervehicle Communication
• Quantifying Reductions in Commute Disutility from Traveler Information Services
• Simulating Operations Applications of Vehicle Infrastructure Integration: Traffic Monitoring Case Study
• Urban Expressway–Arterial Corridor On-Line Control System Based on Advanced Traveler Information System