Traffic Congestion

Primary Causes: Traveler Information

Traffic congestion can sometimes occur because travelers/visitors don't have information on alternate routes, road construction, etc. Image 1 shows an example of a Highway Advisory Radio (HAR) sign in a Federal land, Image 2 shows a Dynamic Message Sign (DMS) and Image 3 shows a sign for the 511 Traveler Information Number.

Most of the solutions to address this issue are related to ITS solutions that increase the amount of "outlets" or "portals" for traveler information. Potential infrastructure solutions include building Visitor Centers, or providing off-site visitor information. The following links let you view the Fact Sheets which provide detailed information on the possible solutions relating to this issue.

Infrastructure

• Improved Traffic Control Devices
• Kiosks
• Offsite Visitor Information
• Visitor Centers

Intelligent Transportation Solutions (ITS)

• Advanced Public Transportation Systems (APTS)
• Automatic Vehicle Location (AVL) Systems
• Kiosks
• Transit Status Signs
• Advanced Rural Transportation Systems (ARTS)
• 511
• Closed Circuit Television (CCTV)
• Dynamic Message Signs (DMS)
• Environmental Sensing Stations (ESS)
• Highway Advisory Radio (HAR)
• Road Weather Information Systems (RWIS)
• Advanced Traveler Information Systems(ATIS)
• 511
• Closed Circuit Television (CCTV)
• Dynamic Message Signs (DMS)
• Environmental Sensing Stations (ESS)
• Highway Advisory Radio (HAR)
• Roadside Detection Systems (RS-D)
• Road Weather Information Systems (RWIS)

Policy

• Educational Campaigns
• Media Policies

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