Where lane direction control signals are placed over the individual lanes of a highway, vehicular traffic may travel in any lane over which a green signal is shown, but may not enter or travel in any lane over which a red signal is shown.
Structure Maryland Statutes
Title 21 - Vehicle Laws -- Rules of the Road
Subtitle 2 - Traffic Signs, Signals, and Markings
Section 21-201 - Obedience to and Required Traffic Control Devices
Section 21-202 - Traffic Lights With Steady Indication
Section 21-202.1 - Traffic Control Signal Monitoring Systems
Section 21-203 - Pedestrian Control Signals
Section 21-204 - Flashing Signals
Section 21-204.1 - Lane Direction Control Signals
Section 21-205 - Display of Unauthorized Signs, Signals, or Markings
Section 21-206 - Interference With Traffic Control Devices or Railroad Signs and Signals
Section 21-207 - Funeral Processions
Section 21-208 - Erection of Signs Denoting Height of Overpasses