| Bus Rapid Transit, MARC |
| Bus Rapid Transit |
| Light Rail |
| Bus Rapid Transit, Light Rail |
| Metro Rail |
| Bus Rapid Transit, Metro Rail |
| MARC |
| MARC (Recommended) |
| MARC, Metro Rail, Bus Rapid Transit |
| Bus Rapid Transit, Metro Rail, Light Rail |
| Light Rail, Metro Rail, MARC, Bus Rapid Transit |
| Corridor 1 (Georgia Ave North) |
| Corridor 2 (Georgia Ave South) |
| Corridor 3 (MD 355 North) |
| Corridor 3 (MD 355 North) - Ten Mile Creek Alt |
| Corridor 4 (MD 355 South) |
| Corridor 4 (MD 355 South) - Extended |
| Corridor 5 (New Hampshire Avenue) |
| Corridor 6 (North Bethesda Transitway) |
|
| Corridor 6 (North Bethesda Transitway) - Alt |
| Corridor 7 (Randolph Road) |
| Corridor 7 (Randolph Road) - Alt |
| Corridor 7 (Randolph Road) - WOSG Alt |
| Corridor 8 (University Boulevard) |
| Corridor 9 (US 29) |
| Corridor 9 (US 29) - WOSG Alt |
| Corridor 10 (Veirs Mill Road) |
| Corridor Cities Transitway |
| Corridor Cities Transitway - GSSC Alt |
|
| Corridor Cities Transitway - Ten Mile Creek Alt |
| ICC |
| Unspecified Transitway |
