| Runway Incursions | Any occurrence at an airport involving aircraft, vehicle, person, or object that causes a collision hazard |
| Categories for Runway Incursions | Operations, Pilots, Vehicle, Miscellaneous |
| ATCT | Air Traffic Control Tower |
| Light Gun Signal | Used by the ATCT to communicate with drivers or aircraft who cannot be contacted by radio |
| FOD (Foreign Objects of Debris) | Garbage on non-movement areas must be picked up. Do not throw on ramp |
| Depressed Roadways | Road elevation is lower than the gate area. Only tugs, tractors, and emergency equipment may use this road |
| Fishtailing | Excessive side-to-side movement of towed equipment |
| Ground Vehicle Light | Must be on from sunset to sunrise or in poorly lighted/low visibility areas. After sunset, cannot park in the gate area with lights turned on and facing the aircraft |
| Ground Vehicle Brakes | All drivers must test the brakes when approaching an aircraft to avoid brake failure/collision |
| Parking Brakes | Use in the event an operator must leave their vehicle unattended |
| Open Cab | Provides the driver with unobstructed 360° visibility |
| Rear View Mirror | Vehicle must have at least one of these for the operator to have a clear view of the road behind for a distance of 200 ft |
| Horn | All ground vehicles equipped with horns must be audible from a distance of 200 ft |
| Slow Moving Vehicle, Towed Carts & Equipment | Must be clearly marked on both sides and rear of the vehicle with fluorescent paint, including company name and a slow-moving vehicle sign |
| Structural Clearance Advisory | Caution must be used when operating equipment in the terminal area, paying attention to height and width clearance |
| Disabled Vehicle | Do not leave in the middle of movement areas |
| Vehicle Transporting Fuel | Cannot drive through concourse underpasses or under the terminal building |
| Double Solid Lines | No passing zones on service roads |
| No Driving on Runway or Taxiways | Except: 1. Where service roads cross taxiways or runways 2. Escorted by authorized city vehicles or organizations approved by the airport operations and have radio contact with ATCT 3. Driving an emergency vehicle |
| Zipper Markings | Do not cross or go beyond these markings. They declare the boundary of the service road |
| Steady Red Light | Stop |
| Flashing Red Light | Clear runway or taxiway immediately |
| Flashing White Light | Return to start point |
| Steady Green Light | Clear to go |
| Flashing Green Light | Clear to taxi (no vehicles) |
| Flashing Red and Green Light | Use extreme caution |
