CVRIA Acronyms
 M&C: Maintenance and Construction
 MAC: Medium Access Control
 MAP: Map Data Message
 MAP-21: Moving Ahead for Progress in the 21st Century Act
 MAPSS: Mobile Accessible Pedestrian Signal System
 MARAD: Maritime Administration
 Mbps: Megabits per second
 MCM: Maintenance and Construction Management
 MCMC: Maintenance and Construction Center
 MCO: Maintenance and Construction Operations
 MCV: Maintenance and Construction Vehicle
 MDSS: Maintenance Decision Support System
 M-ISIG: Multi-Modal Intelligent Traffic Signal System
 MMITSS: Multi-Modal Intelligent Traffic Signal Systems
 MMRTTI: Multimodal Real-Time Traveler Information
 MPG: Miles per Gallon
 MPH: Miles per Hour
 MPO: Metropolitan Planning Organization
 MS/ETMCC: Message Set for External TMC Communication
 MTP: Metropolitan Transportation Plan