78 Chapter 5 — Signals and Signs Ramp Meter Traffic Signals: Hybrid Beacons Sequence for a Hybrid Beacon A ramp meter signal is used to control traffic entering a freeway from an  interchange entrance ramp. When a ramp meter is displaying a circular red display, vehicles facing the red  light must stop. When a ramp meter is displaying a circular green display, a  vehicle facing the green display may proceed to merge onto the freeway. When  the display is dark or not emitting a red or green display, a vehicle may proceed  without stopping and enter the freeway by merging or yielding as normal  conditions allow. Hybrid beacons may be used to control traffic at mid-block crosswalks and  entrances to emergency response facilities. The beacons remain dark until  activated by pedestrians or emergency response personnel. Once activated, the  beacons will flash yellow for a few seconds, then go steady yellow and steady red  for a few more seconds to allow moving vehicles to safely stop. Once vehicles  have stopped, the beacons will remain steady red while pedestrians begin  crossing or the emergency response vehicles begin exiting their facility. After  several seconds, the beacons will begin flashing red, during which time vehicles  are to remain stopped until the pedestrians or emergency response vehicles have  cleared the intersection. After the pedestrians or emergency response vehicles  have cleared the intersection, and after first coming to a complete stop, vehicles  may begin moving while the beacons are flashing red. Steady Red  – Stop and wait for green Steady Green  – Proceed down ramp and merge onto freeway 1. Dark Until Activated 2. Flashing Yellow Upon Activation 3. Steady Yellow 4A. Steady Red Before  Pedestrian Walk Interval or  Egress of Emergency Vehicle(s) 4B. Steady Red During  Pedestrian Walk Interval or  Egress of Emergency Vehicle(s) 5. Alternating Flashing Red During  Pedestrian Change Interval or Egress  of Emergency Vehicle(s)  6. Dark Again Until Activated R R Y R R FY R R SY SR SR Y SR SR Y FR R Y R FR Y R R Y Legend SY Steady yellow FY Flashing yellow SR Steady red FR Flashing red