IRIS (Intelligent Roadway Information System) is an open-source Advanced Traffic Management System (ATMS) software project developed by the Minnesota Department of Transportation. 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 Stations (ESS) Dynamic message sign monitoring and control Ramp meter 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
DMS NTCIP Class A, B, C ADDCO Inc. Daktronics 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: Iteris Velocity Bluetooth: Acyclica Transcore Encompass 6 Multiprotocol Reader
Minneapolis / Saint Paul IRIS System The IRIS implementation in the Minneapolis – Saint Paul 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
Transportation agencies using IRIS Minnesota Department of Transportation California Department of Transportation Nebraska Department of Transportation Wyoming Department of Transportation Wisconsin Department of Transportation
See also Traffic flow Traffic congestion
External links IRIS Administrator Guide IRIS Github Repository IRIS Release Notes Minnesota Department of Transportation IRIS Site AHMCT / California Department of Transportation IRIS Site IRIS Discussion Group