Narrative:

After an uneventful flight to bwi carrying freight; I cleared the runway and began to taxi to the ramp area. As I was preparing to turn into the parking area; a large fuel truck pulled out in front of the aircraft and I had to use maximum braking and propeller reverse in order to avoid a collision. The truck was approximately 1 ft in front of the propeller of my aircraft after I was able to stop. The truck was moving perpendicular to the aircraft path and was not in the airport service road which runs parallel to the taxi centerline in this area of the ramp. The truck came from my left from an area where several trucks are staged on a regular basis and was not in any marked roadway. This is the latest in many close calls I have had ranging from maryland transit authority police cars almost colliding with me; to baggage carts pulling in front of me deliberately and blocking the path of the aircraft; necessitating an extreme avoidance maneuver.I can only speculate as to what would make a person want to attempt to create an accident with an aircraft. However; I am forced to believe that the drivers of vehicles at bwi airport don't care about collisions; are unaware that an airplane is approaching them; desire to see an aircraft hit their vehicle; or just simply aren't paying attention. Escort all aircraft in the vicinity of the north cargo ramp with at least one police car with its lights on. Also education of drivers that have an airport driver license that on an airport; aircraft have the right of way no matter if there is a painted roadway or not. Psychological screening and questioning for all driver applicants to see if they would desire to have an accident with an airplane; or if they would attempt to make sure an accident occurs.

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Original NASA ASRS Text

Title: C208 pilot reports a critical conflict with a fuel truck while taxiing on the north cargo ramp at BWI.

Narrative: After an uneventful flight to BWI carrying freight; I cleared the runway and began to taxi to the ramp area. As I was preparing to turn into the parking area; a large fuel truck pulled out in front of the aircraft and I had to use maximum braking and propeller reverse in order to avoid a collision. The truck was approximately 1 ft in front of the propeller of my aircraft after I was able to stop. The truck was moving perpendicular to the aircraft path and was not in the airport service road which runs parallel to the taxi centerline in this area of the ramp. The truck came from my left from an area where several trucks are staged on a regular basis and was not in any marked roadway. This is the latest in many close calls I have had ranging from Maryland Transit Authority Police cars almost colliding with me; to baggage carts pulling in front of me deliberately and blocking the path of the aircraft; necessitating an extreme avoidance maneuver.I can only speculate as to what would make a person want to attempt to create an accident with an aircraft. However; I am forced to believe that the drivers of vehicles at BWI airport don't care about collisions; are unaware that an airplane is approaching them; desire to see an aircraft hit their vehicle; or just simply aren't paying attention. Escort all aircraft in the vicinity of the north cargo ramp with at least one police car with its lights on. Also education of drivers that have an airport driver license that on an airport; aircraft have the right of way no matter if there is a painted roadway or not. Psychological screening and questioning for all driver applicants to see if they would desire to have an accident with an airplane; or if they would attempt to make sure an accident occurs.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.