Browsing Transportation, Logistics, and Finance by Issue Date
Now showing items 21-40 of 71
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Precision Enhancement of Pavement Roughness Localization with Connected Vehicles
(2016)Transportation agencies rely on the accurate localization and reporting of roadway anomalies that could pose serious hazards to the traveling public. However, the cost and technical limitations of present methods ... -
Use of Connected Vehicles to Characterize Ride Quality
(2016)The United States rely on the performance of more than four million miles of roadways to sustain its economic growth and to support the dynamic mobility needs of its growing population. The funding gap to build and ... -
Rapid Hyperspectral Image Classification to Enable Autonomous Search Systems
(2016)The emergence of lightweight full-frame hyperspectral cameras is destined to enable autonomous search vehicles in the air, on the ground, and in water. Self-contained and long-endurance systems will yield important new ... -
Resolution Agile Remote Sensing for Detection of Hazardous Material Spills
(2016)Traffic carrying flammable, corrosive, poisonous, and radioactive materials continues to increase in proportion with the growth in their production and consumption. The sustained risk of accidental releases of such ... -
Strategic Global Logistics Management for Sourcing Road Oil in the U.S.
(2017)The demand for asphalt and road oil heavily leverages local supply because the product is a hot binder of aggregates that form the final mix needed to pave roads. This paper discusses the supply chain characteristics of ... -
Characterizing Pavement Roughness at Non-Uniform Speeds Using Connected Vehicles
(2017)Methods of pavement roughness characterizations using connected vehicles are poised to scale beyond the frequency, span, and affordability of existing methods that require specially instrumented vehicles and skilled ... -
Wavelength Sensitivity of a Connected Vehicle Method of Ride Quality Characterizations
(2017)Researchers previously demonstrated that a roughness index called the road impact factor (RIF) is directly proportional to the international roughness index (IRI) when measured under identical conditions. A RIF-transform ... -
Performance of Hyperspectral Imaging with Drone Swarms
(2018)The ongoing proliferation and diversification of remote sensing platforms offers greater flexibility to select from a range of hyperspectral imagers as payloads. The emergence of low-cost unmanned aircraft systems (drones) ... -
Mining Connected Vehicle Data for Beneficial Patterns in Dubai Taxi Operations
(2018)On-demand shared mobility services such as Uber and micro-transit are steadily penetrating the worldwide market for traditional dispatched taxi services. Hence, taxi companies are seeking ways to compete. This study mined ... -
Road Profile Reconstruction Using Connected Vehicle Responses and Wavelet Analysis
(2018)Practitioners analyze the elevation profile of a roadway to detect localized defects and to produce the international roughness index. The prevailing method of measuring road profiles uses a specially instrumented vehicle ... -
Railroad Track Condition Monitoring Using Inertial Sensors and Digital Signal Processing: A Review
(2018)Inertial sensors such as accelerometers and gyroscopes have been widely used since the early 1990s to monitor the condition of transportation assets. Recent improvements in their performance, a reduction in cost, and sensor ... -
Enhancement of Signals from Connected Vehicles to Detect Roadway and Railway Anomalies
(2019)Frequent network-wide monitoring of the condition of roadways and railways prevent fatalities, injuries, and financial losses. Even so, agencies cannot afford to inspect vast transportation networks using present methods. ... -
Signal Filter Cut-off Frequency Determination to Enhance the Accuracy of Rail Track Irregularity Detection and Localization
(2019)A continuous condition monitoring system to detect and localize railroad track irregularities is achievable with inertial sensors onboard revenue service trains. However, the inaccurate geospatial position estimates of GPS ... -
Weigh-In-Motion System in Flexible Pavements Using Fiber Bragg Grating Sensors Part A: Concept
(2019)Weight data of vehicles play an important role in traffic planning, weight enforcement, and pavement condition assessment. In this paper, a weigh-in-motion (WIM) system that functions at both low-speeds and high-speeds in ... -
Review of Usage of Real-World Connected Vehicle Data
(2020)GPS loggers and cameras aboard connected vehicles can produce vast amounts of data. Analysts can mine such data to decipher patterns in vehicle trajectories and driver–vehicle interactions. Ability to process such large-scale ... -
Signal Feature Extraction and Combination to Enhance the Detection and Localization of Railroad Track Irregularities
(2020)Tracks are critical and expensive railroad asset, requiring frequent maintenance. The stress from heavy car axle loads increases the risk of deviations from uniform track geometry. Irregularities in track geometry, such ... -
Closed Form Models to Assess Railroad Technology Investments
(2020)Class I railroads in North America collectively invested $11.2 billion to comply with a federal mandate to deploy positive train control. This amount dwarfs the potential savings from accidents the technology could prevent. ... -
Accuracy Enhancement of Anomaly Localization with Participatory Sensing Vehicles
(2020)Transportation agencies cannot afford to scale existing methods of roadway and railway condition monitoring to more frequently detect, localize, and fix anomalies throughout networks. Consequently, anomalies such as potholes ... -
A Cognitive Framework to Plan for the Future of Transportation
(2020)Automated, connected, electrified, and shared mobility will be cornerstones of the transportation future. Research to quantify the potential benefits and drawbacks of practice, and to identify barriers to adoption is the ... -
Policy Implications of Truck Platooning and Electrification
(2020)Trucks in North America account for more than 23% of the transportation sector’s greenhouse gas emissions. Truck platooning and truck electrification are potential technologies for reducing emissions and operating cost. ...