IUPUI is Indiana's premier urban research university. The campus enrolls more than 30,000 students in 21 schools and academic units.
Fire Apparatus Measurements For Design and Roads and Fire Lanes
These are the results of measurements of Ladder Truck 13, the first due ladder truck on campus. The results were that a 24 foot wide fire lane will accommodate this large equipment easily on a straight away and if gentle curves are added, most likely will accommodate that. However, where a significant turn (like 90 deg) is needed, a 24' x 24' lane tee will not allow a reliable turning opportunity. While flaring out the approaches to such an intersection would help alleviate this, it probably would not look very good. So, what we would recommend at these intersections is a 40 foot diameter circle with the center of the circle on the intersection point of the two centerlines. This broadens the intersection for turning the large apparatus without really strange looking intersections. 40 ft is the minimum that will work and there cannot be light poles, trees and like objects immediately along the fire lane that the trucks may hit. If you wanted a safety margin in all of this, I would recommend that the intersection circles be of 45 ft. diameter.
| Raw data: October 13, 2000 IFD Ladder 13 102 ft aerial tower |
Clearance Height: 12 feet |
| Width: 8' fender to fender 10' 2" mirror to mirror 24' outrigger to outrigger when set up. |
Length: |
Clearances from truck underbody to ground: |
Left Hand Turn: 59' 5" inside diameter of rear wheels 79' 10" Outside diameter of rear bumper 89' 6" Outside diameter of front bumper |
Right Hand Turn: |
Measured 90 Degree turn: Outside perimeter of arc = 53' 9" Inside perimeter of arc = 33' |
