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Now showing items 21-30 of 31
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 ...
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 ...
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) ...
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. ...
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 ...
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 ...
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 ...
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 ...
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 ...