1、Lessons Learned Entry: 1309Lesson Info:a71 Lesson Number: 1309a71 Lesson Date: 2002-08-01a71 Submitting Organization: JSCa71 Submitted by: Ronald A. MontagueSubject: Pedestrians and Forklifts Description of Driving Event: The following occurred at a non-NASA facility and is provided as a courtesy be
2、cause what happened here can happen anywhere. A pedestrian was walking within a marked walkway adjacent to a material handling staging area and a roadway outside a building. The forklift was traveling in the same direction and was in the process of traversing from the roadway, across the pedestrian
3、walkway, to the material handling staging area. The pedestrian was struck and his right leg was severely injured. The investigation determined the equipment operator was traversing his forklift across the pedestrian walkway into the Material Handling staging area to pick up freight. As he made a sha
4、llow right turn, he heard a thump, saw the pedestrian falling and stopped immediately. The operator stated he never saw the pedestrian prior to striking him with the forklift. Key Findings 1. The forklift had no mechanical problems and the speed control governor was functioning properly.2. The forkl
5、ift was traveling below the posted speed limit of 15 mph.3. There is no indication that the forklift operator was physically impaired.4. The pedestrian was within the marked pedestrian walkway when he was struck.5. Weather and pavement conditions were not factors.6. When a forklift makes a shallow t
6、urn across an adjacent walkway the risk of a collision with anyone or anything in the pedestrian walkway is increased.7. In the incident area, the adjacent and parallel walkway configuration created a situation where pedestrians were in a moving blind spot and could be obscured from the operators fi
7、eld of view for a prolonged period of time.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-8. The configuration of the forklift cab and lifting mast obstructed the operators field of view between 9 and 18 degrees on either side of the forklift center
8、line: at 25 feet, the blind spot is 4 feet wide on each side.9. The position and motion of pedestrians could extend the amount of time they are in the operators blind spot. See figure 1.10. In an industrial environment pedestrians need to be aware of their surroundings at all times, even when in the
9、 marked walkways and crosswalks.Lesson(s) Learned: Motorized lifting devices such as forklifts are capable of sudden changes in direction, endangering nearby pedestriansRecommendation(s): 1. Pedestrians need to be aware of their surroundings especially any equipment that is in operation. Adequate cl
10、earance between pedestrians and equipment should be maintained at all times to allow for movement with may be in one direction or changing to a new direction.2. 3. Forklifts should utilize ninety degree turns when crossing pedestrian crosswalks, entering and exiting roadways. This maneuver will do s
11、everal things: a. The forklifts forward movement is slowed appreciably. b. the sudden change of direction is likely to be quickly recognized by pedestrians so the forklift can be avoided. c. the forklift operators field of view will sweep quickly through the new path, allowing pedestrians to emerge
12、from the blind spot caused by the forklift apparatus. Evidence of Recurrence Control Effectiveness: N/ADocuments Related to Lesson: N/AMission Directorate(s): a71 Exploration Systemsa71 Sciencea71 Space Operationsa71 Aeronautics ResearchProvided by IHSNot for ResaleNo reproduction or networking perm
13、itted without license from IHS-,-,-Additional Key Phrase(s): a71 Facilitiesa71 Ground Equipmenta71 Ground Operationsa71 Human Factorsa71 Industrial Operationsa71 Lifting Devicesa71 Safety & Mission Assurancea71 Test FacilityAdditional Info: Approval Info: a71 Approval Date: 2002-10-10a71 Approval Name: Ronald A. Montaguea71 Approval Organization: JSCa71 Approval Phone Number: 281-483-8576Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
