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   Montgomery County Department of Transportation
   Advanced Transportation Management System (ATMS)  


TMC Overview

The Advanced Transportation Management System (ATMS) is composed of multiple integrated subsystems controlled and monitored from the Transportation Management Center (TMC). The ATMS is based on an open architecture that uses the latest Intelligent Transportation System (ITS) technologies to provide real-time transportation system control, monitoring, and information. The open architecture promotes the growth and the integration of systems from multiple vendors.

ATMS Overview
ATMS Benefits
FiberNet Description
TMC Overview


  • Traffic responsive signal system
  • Changeable lane use signs (LUS)
  • Variable speed limit signs (FUTURE)


  • Detection (Inductance loop, microwave, machine vision, etc.)
  • Traffic video camera system
  • Aerial traffic monitoring
  • Vehicle probes (buses, county vehicles, taxis, etc.)
  • Traffic Watch Team (FUTURE)
  • Parking management (FUTURE)
  • Weather/pavement sensors (FUTURE)
  • Electronic enforcement (red light)
  • Service Patrol


  • Travelers Advisory Radio System (TARS)
  • Cable television
  • Broadcast media (television and radio)
  • Internet/Intranet (
  • Satellite television services (FUTURE)
  • Traffic reporting services (Metro and Shadow Traffic)
  • Kiosks
  • Traveler Advisory Telephone System
  • In-vehicle, cellular, paging services (FUTURE)
  • Variable message signs and route guidance signs
  • Variable message signs at major transit bus shelters and metro stations




For any MCDOT service request or complaint, call 311
When dialing outside of the county, call 240-777-0311 or submit via their website.

For website comments or to report website problems or broken links, please email us. This email address does not handle service requests or complaints.

 Director's Office · Montgomery County Department of Transportation
101 Monroe Street, 10th Floor · Rockville, Maryland 20850 ·
· telephone: 240-777-7170 · fax: 240-777-7178 ·