Results of the Clarus Demonstrations: Evaluation of Enhanced Road Weather Forecasting Enabled by Clarus [Use Case #1]

Haas, Robert; Bedsole, Elisabeth; Science Applications International Corporation

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Results of the Clarus Demonstrations: Evaluation of Enhanced Road Weather Forecasting Enabled by Clarus [Use Case #1]

2011-06-14
By Haas, Robert ; Bedsole, Elisabeth

[PDF-4.53 MB]

English

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Details:

Alternative Title:

Evaluation of enhanced road weather forecasting enabled by Clarus
Creators:

Haas, Robert ; Bedsole, Elisabeth

Haas, Robert ; Bedsole, Elisabeth Less -
Corporate Creators:

Science Applications International Corporation
Corporate Contributors:

United States. Joint Program Office for Intelligent Transportation Systems ; United States. Department of Transportation. Research and Innovative Technology Administration

United States. Joint Program Office for Intelligent Transportation Systems ; United States. Department of Transportation. Research and Innovative Technology Administration Less -
Subject/TRT Terms:

[+]

Automatic Data Collection Systems Clarus System Data Collection Data Files Data Processing Operations Decision Making Decision Support Systems Driver Information Systems Estimation Theory Evaluation Information Storage And Retrieval Systems Intelligent Transportation Systems Intelligent Transportation Systems Programs Local Analysis And Predictions System Model Of The Environment And Temperature Of Roads Pavement Performance Pavement Precipitation Accumulation Estimation System Planning Methods Precipitation (Meteorology) Regional Analysis Research Hub Road Weather Road Weather Information Systems Telematics Weather Weather Forecasting Weather Research And Forecast Model
Publication/ Report Number:

FHWA-JPO-11-116
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Evaluation report.
Corporate Publisher:

United States. Joint Program Office for Intelligent Transportation Systems
NTL Classification:

NTL-INTELLIGENT TRANSPORTATION SYSTEMS-Road Weather Management;NTL-ENERGY AND ENVIRONMENT-Environment Impacts;
Abstract:

This document is the final report of an evaluation of Clarus-enabled enhanced road weather forecasting used in the Clarus Demonstrations. This report examines the use of Clarus data to enhance four types of weather models and forecasts: The Local Analysis and Predictions System (LAPS), used to estimate initial conditions for atmospheric weather forecast models; The Weather Research and Forecast (WRF) atmospheric weather forecast models; The Model of the Environment and Temperature of Roads (METRo) road weather forecast model; The Pavement Precipitation Accumulation Estimation System (PPAES) tool for enhancing radar-based precipitation estimates.

The results demonstrate the benefit of the Clarus System to enhance weather and road weather forecast and estimation systems. While the Clarus data did not appreciably improve the atmospheric forecasts, it did improve the estimates for the initialization data that fed those forecasts. The Clarus data did result in improved road temperature forecasts, particularly during the first 24 hours of the forecast. And, when used with the PPAES model, the Clarus data helped improve on estimates of the locations where precipitation was present, particularly in the winter months and at locations further removed from NexRad weather radar stations.
Format:

PDF
Funding:

DTFH61-06-D-00005, Task 09011
Collection(s):

ITSJPO Digital Library Federal Highway Administration
Main Document Checksum:

[+]

urn:sha256:182b932d4211045021b38063c405a1285883ad158f45aad9921c5d8d0190f1a9
Download URL:

https://rosap.ntl.bts.gov/view/dot/3355/dot_3355_DS1.pdf
File Type:

No Additional Files

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Results of the Clarus Demonstrations: Evaluation of Enhanced Road Weather Forecasting Enabled by Clarus [Use Case #1]

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