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Thursday, August 6, 2020 | History

2 edition of Detection of preferential icing on bridges, using traffic and meteorological data found in the catalog.

Detection of preferential icing on bridges, using traffic and meteorological data

John A. Eldon

Detection of preferential icing on bridges, using traffic and meteorological data

by John A. Eldon

  • 361 Want to read
  • 32 Currently reading

Published by Dept. of Transportation, Federal Highway Administration, Offices of Research & Development, for sale by the National Technical Information Service in Washington, Springfield, Va .
Written in English

    Subjects:
  • Bridges -- Snow and ice control.,
  • Icing (Meteorology)

  • Edition Notes

    StatementJohn A. Eldon.
    SeriesReport - Federal Highway Administration ; no. FHWA-RD-78-134
    ContributionsTechnology Service Corporation., United States. Federal Highway Administration.
    The Physical Object
    Paginationviii, 103 p. :
    Number of Pages103
    ID Numbers
    Open LibraryOL15227811M

    Additional Physical Format: Online version: Ferrara, Angelo A. Prevention of preferential bridge icing using heat pipes. Washington: Federal Highway Administration ; Springfield, Va.: Available through the National Technical Information Service, correct use and interpretation of the various statistical methods currently used in the analysis of weather/climate observed and model simulated data. Practical Exercises Each topic covered in the lectures will be followed by exercises analyzing real data in practical computing classes using R statistical Size: KB.

    Truck traffic exceeds DDHV — 12+ foot shoulders on both sides should be considered Always Bridge Width Less than feet long — Shall equal full paved width of approach roadway + feet long, Green Book — provide approach shoulder widths and median barrier if single structure. ice detection, prediction, and warning system on highways. the system consists of the following 5 parts: (1) meteorological observation devices installed on roadway or roadside for measuring air, pavement, and underground temperature, wind direction, wind velocity, radiation, and humidity; (2) road surface moisture meter installed on.

    Analysis with SiLK Ana lyst s H a ndbook for SiL K Versio n an d Later(NetworkTrafficAnalysiswithSiLK Analyst’sHandbookforSiLKVersionsandLater PaulKrystosek GeoffreySanders TimothyShimeall June Testing of Multifrequency Radar Algorithm for the Detection of Aircraft Icing Potential With Aircraft-Sampled Cloud and Precipitation Data May DOT/FAA/AR-TN01/3 This document is available to the public through the National Technical Information Service (NTIS), Springfield, Virginia U.S. Department of Transportation.


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Detection of preferential icing on bridges, using traffic and meteorological data by John A. Eldon Download PDF EPUB FB2

Detection of preferential icing on bridges, using traffic and meteorological data. Washington: Dept. of Transportation, Federal Highway Administration, Offices of Research & Development ; Springfield, Va.: For sale by the National Technical Information Service, (OCoLC) Material Type.

Detection of preferential icing on bridges, using traffic and meteorological data. Final : John A. Eldon. Preferential icing, the tendency of a bridge deck to freeze before the ad jacent roadway, was studied by the Pennsylvania Transportation Institute, Pennsylvania State University, in cooperation with the Pennsylvania De­ partment of Transportation from through A bridge deck on in Pennsylvania was instrumented, and complete data on the meteo­ rological conditions and surface temperatures of both the bridge File Size: 5MB.

the hazards presented to motorists by preferential icing of bridges versus roads. The driver proceeds along a road where he observes no frozen precipita-tion and drives accordingly.

Suddenly the road changes to an overpass or a bridge, with possibly a curving transition, and the motorist finds his vehicle out of control in a situation where leaving. The bridge from meteorological research to improved safety of air transport Jaakko Nuottokari Finnish Meteorological Institute.

Global view on MET. Use of anti-icing fluid reduced, de-icing operations shortened, departure delay reduced and risk of icing reduced. Improvement. The axis of the coil in all magnetic detectors is installed perpendicular to the traffic flow and has an associated spherical detection zone.

The distortion and change of the magnetic flux lines with respect to time induces a small voltage that is amplified in an electronics unit located in the controller cabinet. 3rd International Balkans Conference on Challenges of Civil Engineering, 3-BCCCE, MayEpoka University, Tirana, Albania Monitoring the Condition of a Bridge using a Traffic Speed Deflectometer Vehicle Travelling at Highway Speed.

Eugene J. OBrien. 1, 2, Enrique Sevillano. Current icing detection methods are based on either meteorological observing system or extra condition monitoring system.

CICTP CICTP Transportation Reform and Change—Equity, Inclusiveness, Sharing, and Innovation Detection of Traffic Video Images with or without Signal Based on AdaBoost Strengthening BP Neural Network Aerodynamic Effect on the Noise Barrier of High Speed Maglev Girder-on-Bridge System under Extreme Weather Conditions.

Feng Ye. Presently, the airborne remote detection of atmospheric turbulence is limited to radar-visible regions of the sky, i.e., zones that contain hydrometeors like rain or cloud droplets. The bulk of the actual turbulence, possible in clear air at all flight altitudes, evades such a remote detection.

Assessment of Aircraft Icing Potential and Maximum Icing Altitude from Geostationary Meteorological Satellite Data Gary P. Ellrod and Andrew A.

Bailey Published online on. Overheight detectors monitor the height of vehicles, e.g., in front of tunnel portals, low underpasses, or bridges. When the detector signal is linked to a vehicle detection system, stop and alarm signals can be triggered very reliably.

The detectors are still capable of detecting the overheight of a vehicle when it is traveling at up to km/h – even in rain, snow, or dusty conditions. Geostationary and polar-orbiting meteorological satellites have been used to help detect supercooled clouds that cause in-flight icing since the early s (Curry and Liu ; Ellrod ; Vivekanandan et al.

; Thompson et al. ; Smith et al. ).Satellite data have a number of distinct benefits in the analysis of aircraft icing such as multispectral capabilities, frequent sampling Cited by: Deflects moving particles such as air to the right above the equator and to the left below the equator; caused by Earth's rotation and combines with the heat imbalance found on Earth to create the trade winds, polar easterlies, and prevailing westerlies.

Trade winds. developed, that could warn motorists about the presence of preferential icing and/or the presence of an incident on the roadway ahead. Such a system, if available, would be intended for application on the westbound to southbound ramp. In particular, the bridge deck overa part of the ramp, was the specific site for application.

efforts to correlate these variables of weather, geographic location, and bridge deck thermal properties that lead to preferential icing are researched.

A BRIDGE DECK OVER A STREAM WAS INSTRUMENTED TO GATHER DATA ON A CONTINUOUS BASIS THROUGHOUT THE WINTER OF AND detect the reflected light. This characteristic allows lidar data to be collected at night when the air is usually clearer and the sky contains less air traffic than in the daytime.

In fact, most lidar data are collected at night. Unlike radar, lidar cannot penetrate clouds, rain, or dense haze and must be flown during fair weather.

I, Declan McHugh, declare that this thesis titled, ’Tra c Prediction and Analysis using a Big Data and Visualisation Approach’ and the work presented in it are my own. I con rm that: This work was done wholly or mainly while in candidature for a research degree at this Size: 8MB.

Weather and Congestion The Use of Weather Data to Predict Non-recurring Traffic Congestion by Daniel J. Dailey Department of Electrical Engineering University of Washington Seattle, Washington Washington State Transportation Center (TRAC) University of Washington, Box University District Building, Suite N.E.

45th Street. 1. With growing ice accretion, the drag of the aerofoil increases due to the profile shape alteration, even if the profile shape tends to be replicated, and due to the attack angle variation, diminishing the power output of the turbine.

At the iced cross-section of the blade, the augmented chord length at the LE can lead to: (a) an increase of the bending moment at the blade root.

come, forecast and satellite data will accumulate and hence provide a more substantial verification dataset. This method of verifying icing forecasts will also be used to assess and monitor developments to the UK icing algorithm.

8. REFERENCES Francis, P.N., Detection of aircraft icing conditions over Europe using SEVIRI data.a large volume of real-time traffic data at very high spatial and temporal resolutions has become available.

While this is a gold mine of data, the most popular utilization of this data is to simply visualize and utilize the current real-time traffic congestion on online maps, car navigation systems, sig-alerts, or mobile Size: KB.• Hypothesis driven data collection, Statistical hypothesis testing • Emerging Data-Intensive Approach • Secondary Data: Engine computer, gps, cell-phones, face-book,VGI, • Exploratory data analysis for hypothesis generation • Ex.

Data Mining and Knowledge Discovery Data-Intensive Scientific Discovery.