Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 31 for “"Signalized Intersection"”.
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Statistical and Behavioral Modeling of Driver Behavior on Signalized Intersection Approaches
… of vehicle crashes is greater for high-speed signalized intersection approaches. The research presented in this dissertation develops statistical as well as behavioral frameworks for modeling driver behavior while approaching high-speed signalized intersection approaches at the onset of a …
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Improving Dilemma Zone Protection Control Issues at Signalized Intersection Using a Web-Game
… for the demonstration of the driver-behavior at signalized intersections that can be used as a supplementary tool for the Transportation Engineering course. The game format is carefully designed to supplement the understanding of the class learning material through a fun environment. It was …
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Neural Network Trees And Simulation Databases: New Approaches For Signalized Intersection Crash Classification And Prediction
Intersection related crashes form a significant proportion of the crashes occurring on roadways. Many organizations such as the Federal Highway Administration (FHWA) and American Association of State Highway and Transportation Officials (AASHTO) are considering intersection safety improvement as …
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Using Augmented Reality For Studying Left Turn Maneuver At Un-signalized Intersection And Horizontal Visibility Blockage
… engineering studies; left-turn maneuver at un-signalized intersection, and horizontal visibility blockage when following a light truck vehicle. The results from this work supported the validity of our AR systems to be used as a surrogate to the field-testing for transportation research.
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A New Approach To Identify The Expected Crash Patterns Based On Signalized Intersection Size And Analysis Of Vehicle Movements
Analysis of intersection crashes is a significant area in traffic safety research. This study contributes to the area by identifying traffic-geometric characteristics and driver demographics that affect different types of crashes at signalized intersections. A simple methodology to estimate crash …
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Vehicle Wheel Energy Reduction at Intersections using Signal Timing and Adaptive Cruise Control
… in this paper focuses on the design of a Signalized Intersection Control Strategy. First, research is performed on different methods of intersection control and implementation with an existing Model Predictive Adaptive Cruise Controller. Based on ease of integration into an existing tuned …
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Accounting for midblock pedestrian activity in the HCM 2010 urban street segment analysis
… for analyzing automobile performance on signalized roadway segments within an urban roadway network. The methodology involves applying a platoon dispersion model to: a) predict the vehicle arrival flow profiles at a downstream signalized intersection; b) use the predicted arrivals to …
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String Stable Constant-Spacing Platoon with Robustness to Communication Delays and Cutoff
… control approach to a mixed vehicle network at a signalized intersection with vehicle-to-infrastructure (V2I) connectivity, as well as a human-led platoon.
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Field measurement of ideal saturation flow rate from the highway capacity manual
In all signalized intersection analyses performed with Highway Capacity Manual (HCM), the Pennsylvania Department of Transportation (PENNDOT) District 12-0 uses an ideal saturation flow rate of 1800 pcphgpl, which is less than the default value of 1900 pcphgpl provided by HCM. This is to account …
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An integrated systems methodology for pedestrian traffic flow analysis
… elements: sidewalks or walkways; midblock or intersection corner, holding, or queueing areas; and pedestrian crossings of roads, rail lines, or other physical features. The pedestrians on sidewalks or walkways have operating characteristics analogous to motorized vehicles on roadways. Each …
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Evaluation and Installation Guidelines for Advance Warning Signal Systems in Utah
… of the end-of-green phase for an approaching signalized intersection. The purpose of this research was to develop guidelines for the placement of AWS in Utah, both conditions to evaluate the need for AWS installation and guidelines for the AWS system design. The conditions were based on …
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Simulation and queueing network model formulation of mixed automated and non-automated traffic in urban settings
… featuring traffic flowing through an isolated signalized intersection. The green phase length, autonomous vehicle penetration rate, and demand rate are varied. We observe an increase in network capacity and a decrease in average delay as autonomous vehicle penetration rate is increased. Using …
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Safety, Operational, and Energy Impacts of In-Vehicle Adaptive Stop Displays Using Connected Vehicle Technology
Driving through an un-signalized intersection creates multiple opportunities for missed or misunderstood information. Stop signs, in particular, can be stolen, covered by vegetation, or rotated out of place, leading to an absence of information, contributing to inappropriate decision-making and …
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Evaluating Transportation Network Mobility and Enhancing Traffic Signal Operations Performance Using Probe Data and Connected Vehicle Technology
… for improving operational efficiency at a signalized intersection. Two innovative traffic signal control algorithms are established to demonstrate real-time delay optimization for both connected and non-connected vehicles. The third part of this dissertation extends the use of CV-technology …
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Safety Issues Of Red-light Running And Unprotected Left-turn At Signalized Intersections
… or left turning are most likely to occur at signalized intersections and resulted in substantial severe injuries and property damages. This dissertation mainly focused on these two types of vehicle crashes and the research methodology involved several perspectives. To examine the overall …
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Modeling Crash Frequencies At Signalized Intersections In Central Flor
… of highway crashes in the United States occur at intersections. These crashes result in property damage, lost productivity, injury, and even death. Identifying intersections associated with high crash rate is very important to minimize future crashes. The purpose of this study is to develop …
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Eco-Driving in the Vicinity of Roadway Intersections - Algorithmic Development, Modeling and Testing
… percentage of vehicle fuel losses especially at signalized intersections. Recently, researchers have attempted to develop tools that reduce these losses by capitalizing on traffic signal information received via vehicle connectivity with traffic signal controllers. Existing state-of-the-art …
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Driving Simulator Validation And Rear-end Crash Risk Analysis At A Signalised Intersection
… The Simulator replicates a real world signalized intersection (Alafaya trail (SR-434) and Colonial Drive (SR-50)). A total of sixty one subjects of age ranging from sixteen to sixty years were recruited to drive the simulator for the experiment, which consists of eight scenarios. This …
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Delay, Stop and Queue Estimation for Uniform and Random Traffic Arrivals at Fixed-Time Signalized Intersections
… for estimating delay, queue length and stops at signalized intersections, they are limited in scope. Alternatively, several microscopic simulation softwares are currently available for the evaluation of signalized intersections. The objective of this dissertation is fourfold. First, it evaluates …
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Analysis Of Queue Characteristics At Signalized Intersections Near Highway-Railroad Grade Crossing
<p>Analysis of traffic queues at signalized intersections which are in close proximity to highway- railroad grade crossings is of primary importance for determining if the normal signal operation needs to be preempted for railroad operations by providing a special signal mode for safe clearance of …
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