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Ramp Metering in Freeway Systems Benefits of One and Two Lane Ramp Metering Implementations. , UC 1 Isaac Quaye , 2 Emma Hand, 3 Jared Sagaga 1 Aerospace Engineering, UC; 2 Civil Engineering, UC; 3 Aerosapce Engineering, SJSU. Background. Acknowledgements. Methods. Data collection.

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  1. Ramp Metering in Freeway Systems Benefits of One and Two Lane Ramp Metering Implementations , UC1Isaac Quaye, 2Emma Hand, 3Jared Sagaga 1Aerospace Engineering, UC; 2Civil Engineering, UC; 3Aerosapce Engineering, SJSU Background Acknowledgements Methods Data collection conclusions results Data processing objectives Faculty Mentor: Dr. Heng Wei, Graduate Assistant: Kartheek K. Allam Grant ID No.: DUE-0756921, EEC-1004623 Two-Lane On-Ramp With Ramp Meter Increasing Safety • Ramp meters are traffic devices used to control traffic entering freeway mainline • First ramp meter implemented in Ohio on I-74 in 2004 • Studying effectiveness of implementing meter on I-275 between Mosteller Road and Reed Hartmann Highway exits Network Model Determine whether one or two lane ramp meter installation is most effective • Data collection and processing using GPS device, traffic counter, and QTravel software • Calibration and validation of network model • One and Two lane ramp implementation simulation using VISSIM software • Analysis of simulation results • A significant impact on safety was observed following ramp meter implementation. In both cases, one lane and two lane ramps, installing ramp meters showed a significant decrease in speed variation, both within the merge and non-merge zones, and between these two areas. • While both scenarios, one lane and two lane, showed decrease in speed variation, two lane meter implementation showed a much larger impact than one lane, and it can be concluded that ramp meters show greater effectiveness when installed on two lane on-ramps. Reducing Travel Time One-Lane On-Ramp Without Ramp Meter Sharonville Ramp GPS Travel Data Logger One-Lane On-Ramp With Ramp Meter Two-Lane On-Ramp Without Ramp Meter Thank you to the National Science Foundation for funding this research project. Video Data Processing Traffic Data Counter

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