Intelligent Transportation Systems (ITS)

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Clarus Overview and Open Data

State DOT

RWIS Server

Collector

Services

Quality

Checking

Web

Portal

7 Day

Data Cache

Metadata

Cache

The Clarus System

State DOT

RWIS Server

State DOT

RWIS Server

State DOT

GPS/AVL

IDrive Probe-

Based Data

•Observations

•Metadata

•Quality Flags

Environment Canada

RWIN Server


	The Clarus program was an initiative designed to create a network of sensing stations and other mechanisms to collect and aggregate weather data, and to offer this data to transportation managers for improved road-weather management. The Clarus is an open data environment that feeds RWIS.