Browsing Upper Great Plains Transportation Institute (UGPTI) by Issue Date
Now showing items 1-20 of 72
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Enabling Mobile Commerce through Pervasive Communications with Ubiquitous RF Tags
(2003)For many years we’ve heard of the existence of a wonderful new technology called radio frequency identification (RFID) that allows supermarket items to be checked out without human intervention. Advertisements claim ... -
Energy Efficiency of CSMA Protocols for Wireless Packet Switched Networks
(2004)The finite battery power in wireless portable computing devices is a motivating factor for developing energy efficient wireless network technologies. This paper investigates energy efficiency, relating it to throughput and ... -
Introducing a Micro-Wireless Architecture for Business Activity Sensing
(2008)RFID performance deficiencies discovered in recent high profile applications have highlighted the danger of selecting only passive tags for an application because of their lowest cost relative to other types of RFID ... -
Vibration Energy Harvesting for Disaster Asset Monitoring Using Active RFID Tags
(2010)This paper highlights the importance of energy harvesting in high-value asset monitoring applications involving use of active RFID tags. The paper begins by highlighting advantages of active tags including improved range ... -
Rolling-Stock Automatic In-Situ Line Deterioration and Operating Condition Sensing
(2013)Track and equipment failures dominate railroad accident causes. Railroads must visually inspect most tracks in service as often as twice weekly to comply with the Federal Track Safety Standards. They augment visual ... -
A Participatory Sensing Approach to Characterize Ride Quality
(2014)Rough roads increase vehicle operation and road maintenance costs. Consequently, transportation agencies spend a significant portion of their budgets on ride-quality characterization to forecast maintenance needs. The ... -
Inertial Sensor Sample Rate Selection for Ride Quality Measures
(2014)The Road Impact Factor is a measure of ride-quality. It is derived from the average inertial response of vehicles to road roughness. Unlike the International Roughness Index, the most common measure, the road impact ... -
Campus Parking Supply Impacts on Transportation Mode-Choice
(2014)Parking demand is a significant land-use problem in campus planning. The parking policies of universities and large corporations with facilities located in small urban areas shape the character of their campuses. These ... -
Precision Bounds of Pavement Deterioration Forecasts from Connected Vehicles
(2014)Transportation agencies rely on models to predict when pavements will deteriorate to a condition or ride-index threshold that triggers maintenance actions. The accuracy and precision of such forecasts are directly proportional ... -
A Connected Vehicle Approach for Pavement Roughness Evaluation
(2014)Connected vehicles present an opportunity to monitor pavement condition continuously by analyzing data from vehicle-integrated position sensors and accelerometers. The current practice of characterizing and reporting ... -
Precision Bounds of Pavement Distress Localization with Connected Vehicle Sensors
(2014)Continuous, network-wide monitoring of pavement performance will significantly reduce risks and provide an adequate volume of timely data to enable accurate maintenance forecasting. Unfortunately, transportation agencies ... -
Hyperspectral Imaging Utility for Transportation Systems
(2015)The global transportation system is massive, open, and dynamic. Existing performance and condition assessments of the complex interacting networks of roadways, bridges, railroads, pipelines, waterways, airways, and ... -
Context Sensitive Solution: A Case Study of Northwest Highway White Rock Lake, Dallas in Texas
(2015)Loop 12 is the first ring around the city of Dallas. The project is a three-quarter mile section of Loop 12 on Northwest Highway. The project section of Northwest Highway is a set of six bridges that cross a 100-year ... -
Hyperspectral Applications in the Global Transportation Infrastructure
(2015)Hyperspectral remote sensing is an emerging field with potential applications in the observation, management, and maintenance of the global transportation infrastructure. This study introduces a general analytical framework ... -
Road Roughness Evaluation Using In-Pavement Strain Sensors
(2015)The international roughness index (IRI) is a characterization of road roughness or ride quality that transportation agencies most often report. The prevalent method of acquiring IRI data requires instrumented vehicles and ... -
Accuracy Enhancement of Roadway Anomaly Localization Using Connected Vehicles
(2016)The timely identification and localization of roadway anomalies that pose hazards to the traveling public is currently a critical but very expensive task. Hence, transportation agencies are evaluating emerging alternatives ... -
Sourcing Strategy for Asphalt Production Feedstock Considering Multimodal Transport Options
(2016)This paper examines the logistics and distribution channels for importing heavy crude oil, which is a source of bitumen. The study conducts a sensitivity analysis to assess the suitability of existing or new distillery ... -
Pavement Performance Evaluations Using Connected Vehicles
(2016)The ability of any nation to support economic growth and commerce relies on their capacity to preserve and to sustain the performance of pavement assets. The ever-widening funding gap to maintain pavements challenges the ... -
Error Sensitivity of the Connected Vehicle Approach to Pavement Performance Evaluations
(2016)The international roughness index is the prevalent indicator used to assess and forecast road maintenance needs. The fixed parameters of its simulation model provide the advantage of requiring relatively few traversals ... -
Hyperspectral Range Imaging for Transportation Systems Evaluation
(2016)Transportation agencies expend significant resources to inspect critical infrastructure such as roadways, railways, and pipelines. Regular inspections identify important defects and generate data to forecast maintenance ...