IRIS (Intelligent Roadway Information System) is an

open-source Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use and view the source code, design documents, or content of the product. The open source model is a decentrali ...

Advanced Traffic Management System (ATMS) software project developed by the

Minnesota Department of Transportation The Minnesota Department of Transportation (MnDOT, ) oversees Transportation in Minnesota, transportation by all modes including land, water, air, rail, walking and bicycling in the U.S. state of Minnesota. The Cabinet (government), cabinet-lev ...

. It is used by transportation agencies to monitor and manage interstate and highway traffic. IRIS uses the GPL license.

Functional areas

* Variable speed limit monitoring and control * Active traffic management and lane control * Congestion Detection * Automated Warning System (AWS) * Road Weather Information Systems (RWIS) /

Environmental Sensor Station A Road Weather Information System (RWIS) comprises automatic weather stations (AWS) (often technically referred to as Environmental Sensor Stations (ESS) as they also cover non-meteorological variables) in the field, a communication system for da ...

s (ESS) * Dynamic message sign monitoring and control *

Ramp meter A ramp meter, ramp signal, or metering light is a device, usually a basic traffic light or a two-section signal light (red and green only, no yellow) together with a signal controller, that regulates the flow of traffic entering freeways accordi ...

monitoring and control * Traffic camera monitoring and control * Vehicle Detector Stations (VDS) for monitoring real-time vehicle speed, flow, density * Toll tags * Incident tracking, monitoring, and storage * Data export: real-time traffic, incidents, configuration, etc. * Integrated mapping

Supported hardware devices

{{how-to, section, date=March 2020 * DMS ** NTCIP Class A, B, C *** ADDCO Inc. *** Daktronics Inc. *** McCain Inc. *** SES America Inc., full matrix DMS, character matrix DMS *** Skyline: full sized DMS, VSL, scroll signs *** Wanco portable DMS ** DMS XML: a simple XML protocol for interfacing with external DMS systems * Road Weather Information System ** NTCIP 1204 device driver, validated with: *** Lufft Lcom *** Campbell Scientific CR1000 *** Vaisala dmc586 *** QTT LX-RPU Elite *** High Sierra Electronics ESS ** Optical Scientific ORG-815 Optical Rain Gauge ** SSI * Traffic cameras ** PTZ: Manchester, Pelco D, Vicon, Infinova ** Switchers: Pelco, Vicon * VDS ** Canoga ** Wavetronix SmartSensor 105 ** Wavetronix SmartSensor 125 ** EIS RTMS (UDP) ** EIS G4 ** Caltrans URMS 2070: UDP, TCP, TCP Re-ID ** Sensys * Tag readers **

Bluetooth Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances and building personal area networks (PANs). In the most widely used mode, transmission power is li ...

: Iteris Velocity **

: Acyclica ** Transcore Encompass 6 Multiprotocol Reader

Minneapolis / Saint Paul IRIS System

The IRIS implementation in the

Minneapolis – Saint Paul Minneapolis is a city in Hennepin County, Minnesota, United States, and its county seat. With a population of 429,954 as of the 2020 census, it is the state's most populous city. Located in the state's center near the eastern border, it ...

region consists of: * DMS: 135 * VDS: 5452 * RWIS: 4 * Cameras: 476 * Ramp meters: 433 * LCS: 194 (most can also be used as DMS) * Lane marking: 1 (in-road lighting) * Static sign with wig-wag beacons: 2

Gallery

File:IRIS example screenshot.jpg, Screenshot of Minnesota Department of Transportation IRIS Client. File:Iris data collection 1KHz reid loop data.jpg, Real-time 1 kHz loop data collected with IRIS.

Transportation agencies using IRIS

California Department of Transportation The California Department of Transportation (Caltrans) is an Executive (government), executive department of the U.S. state of California. The department is part of the Government of California#State agencies, cabinet-level California State Tran ...

* Nebraska Department of Transportation *

Wyoming Department of Transportation The Wyoming Department of Transportation (WYDOT) is the state agency that manages transportation infrastructure and services inWyoming. According to its official mission statement, it aims"to provide a safe, high quality, and efficient transpor ...

Wisconsin Department of Transportation The Wisconsin Department of Transportation (WisDOT) is a governmental agency of the U.S. state of Wisconsin responsible for planning, building and maintaining the state's highways. It is also responsible for planning transportation in the sta ...

External links