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Spatio-Temporal Analyses For Prediction Of Traffic Flow, Speed And Occupancy On I-4, Srinivasa Ravi Chandra Chilakamarri Venkata
Spatio-Temporal Analyses For Prediction Of Traffic Flow, Speed And Occupancy On I-4, Srinivasa Ravi Chandra Chilakamarri Venkata
Electronic Theses and Dissertations
Traffic data prediction is a critical aspect of Advanced Traffic Management System (ATMS). The utility of the traffic data is in providing information on the evolution of traffic process that can be passed on to the various users (commuters, Regional Traffic Management Centers (RTMCs), Department of Transportation (DoT), ... etc) for user-specific objectives. This information can be extracted from the data collected by various traffic sensors. Loop detectors collect traffic data in the form of flow, occupancy, and speed throughout the nation. Freeway traffic data from I-4 loop detectors has been collected and stored in a data warehouse called the …
Examining Dynamic Variable Speed Limit Strategies For The Reduction Of Real-Time Crash Risk On Freeways, Ryan Cunningham
Examining Dynamic Variable Speed Limit Strategies For The Reduction Of Real-Time Crash Risk On Freeways, Ryan Cunningham
Electronic Theses and Dissertations
Recent research at the University of Central Florida involving crashes on Interstate-4 in Orlando, Florida has led to the creation of new statistical models capable of determining the crash risk on the freeway (Abdel-Aty et al., 2004; 2005, Pande and Abdel-Aty, 2006). These models are able to calculate the rear-end and lane-change crash risks along the freeway in real-time through the use of static information at various locations along the freeway as well as the real-time traffic data obtained by loop detectors. Since these models use real-time traffic data, they are capable of calculating rear-end and lane-change crash risk values …
Implementation Strategies For Real-Time Traffic Safety Improvements On Urban Freeways, Jeremy Harvey Dilmore
Implementation Strategies For Real-Time Traffic Safety Improvements On Urban Freeways, Jeremy Harvey Dilmore
Electronic Theses and Dissertations
This research evaluates Intelligent Transportation System (ITS) implementation strategies to improve the safety of a freeway once a potential of a crash is detected. Among these strategies are Variable Speed Limit (VSL) and ramp metering. VSL are ITS devices that are commonly used to calm traffic in an attempt to relieve congestion and enhance throughput. With proper use, VSL can be more cost effective than adding more lanes. In addition to maximizing the capacity of a roadway, a different aspect of VSL can be realized by the potential of improving traffic safety. Through the use of multiple microscopic traffic simulations, …
Evaluation Of The Impacts Of Its Information Strategies On I-4 Corridor, Yueliang Zuo
Evaluation Of The Impacts Of Its Information Strategies On I-4 Corridor, Yueliang Zuo
Electronic Theses and Dissertations
This study evaluated the impacts of ITS information strategies under incident conditions in Interstate 4 (I-4) corridor of Orlando. The analysis was performed using DYNASMART-P software package. The ITS information strategies range from pre-trip information, en-route information, and variable message signs. Simulation covered one hour during the morning peak period. The impacts of ITS information strategies on mobility were evaluated by simulating the performance of various ITS information components (pre-trip information, en-route information, and variable message signs) under incident conditions for the I-4 corridor and comparing the results with the corresponding scenarios in the absence of these components. The traffic …