Effect of Anticipatory Adaptive Cruise Control (AACC) Systems on Mixed Traffic Flow
Date
2018-04-05
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Abstract
Since 1994, when the first generation of Adaptive Cruise Control Systems was available on the market, researchers have been investigating its use and potential benefits in regulating and thereby improving traffic flow. Along with the advancement of Transportation Cyber-Physical Systems and the Internet of Things, vehicles equipped with these systems should be able to access traffic-related information such as speed and relative spacing in real time. The objective of this research is to analyze the behavioral effects of different levels of market penetration of Anticipatory Adaptive Cruise Control (AACC) - equipped vehicles, which have access to the information on speed of three or more of the vehicles further downstream in a one-way traffic flow. A microsimulation package (MIXEM) is developed in MATLAB to incorporate car-following behaviour for the non-equipped and equipped vehicles. Simulation analysis was conducted for various traffic scenarios and market penetration of AACC vehicles. The results showed the advantages of equipping vehicles with AACC in improving traffic stability. In particular, in the case of a signalized intersection scenario, time lost was reduced by half for fully-equipped vehicular traffic flow when compared to non-equipped. Furthermore, in the case of a fixed bottleneck scenario, equipping only 10% of the vehicles eliminated the capacity drop. By equipping all the vehicles, the discharge flow rate would be increased by up to 40%. Finally, a shockwave caused by a slow-moving car can be almost entirely suppressed by introducing the AACC system in all cars.
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Intelligent Transportation Systems, Mixed Traffic Flow, Car-following, Transportation Cyber-Physical Systems, Anticipatory Adaptive Cruise Control
Citation
Ebadi, O. (2018). Effect of Anticipatory Adaptive Cruise Control (AACC) Systems on Mixed Traffic Flow (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/31773