SAN Movie is an animated simulation of a typical arrival and departure event:

• Press “A” to view an arrival
  
• Press “D” to view a departure
  

For arrivals:

• All RELs are simultaneously illuminated based on distance. The distance is one nautical mile from the end of the runway.
• When the aircraft decelerates through approximately 75 knots, RELs downfield are turned off except for the intersection the aircraft is approaching.
  
• All the RELs are turned off when the aircraft slows to taxi speed.
  

For Departures:

• All RELs in front of the aircraft are illuminated when an aircraft transitions from a taxi to a departure.
  
• All RELs are turned off when the aircraft transitions from a departure to an airborne status (wheels off the ground and positive rate of climb).
  
• For departure aborts, when the aircraft decelerates RELs will be turned off.

For both arrivals and departures, RELs are turned off prior to an arrival or departure passing an intersection to allow for anticipated separation. Each individual intersection can be optimized.

Click on PLAY on the lower left side of the picture to start the video.

1. The landing aircraft on runway 36R turns all RELs on when it crosses about a three-quarter-mile final.
   
2. RELs progressively turn off about 3 seconds before the lander passes the intersection to allow for anticipated separation clearances by ATC.
   
3. An aircraft is cleared to cross runway 36R at taxiway A, and the REL is off so it does not interfere with normal, safe operations.
   
4. A departure is cleared for takeoff on runway 36R, and REL is off so it does not interfere with normal, safe operations.
   
5. All RELs downfield turn red simultaneously once the departure accelerates to about 20 knots.
   
6. The aircraft at taxiway WM crossed the hold line and continues while RELs are red in front of it. The aircraft crosses over four red RELs but stops short of the fifth and final red REL on the taxiway centerline and does not cross over the runway edge. At the same time, the departure has reached taxiway A.
   
7. The departure continues takeoff roll down the runway.
   
8. The stopped aircraft at taxiway WM then crosses runway 36R with ATC clearance after the RELs have turned off.
   
9. Another aircraft taxis to the hold line at taxiway A and stops short of it, awaiting ATC clearance.