טכניון מכון טכנולוגי לישראל
הטכניון מכון טכנולוגי לישראל - בית הספר ללימודי מוסמכים  
M.Sc Thesis
M.Sc StudentYaniv Shotnitsky
SubjectFeasibility Analysis of Automated Control of Earthmoving
Equipment in Road Construction
DepartmentDepartment of Civil and Environmental Engineering
Supervisor Professor Navon Ronie


Abstract

Road construction typically involves the usage of a very expensive resource ­- earthmoving equipment. Even though projects are very diverse and, due to varying environmental conditions, the nature of the work is not really repetitive, there are many sub-tasks, which are highly repetitive. Consequently, even a small deviation from the planned performance, can accumulate to large ones, with high financial implications.

This research describes a model for automated productivity measurement, a prototype system of which was built and tested on site.To calculate the productivity, the model used two source of input: locations and a data base, called Project Mode, containing all the planned data including a division of the road to work sections. A GPS, mounted on each piece of equipment, records at regular time intervals, the following data: time of measurement and the location of the equipment at that time. Once an activity is defined as completed, the time all pieces of equipment, associated with it, spent within its work section are summed to represent the execution duration. The model extracts - from the Project Model - the quantity of work needed to complete the activity, and divides it by the execution duration to produce the actual productivity. The latter is compared to the planned productivity (also extracted from the Project Model) to generate the control output.

The model was realized in a prototype system and tested in a road construction site. The results indicates that automated productivity measurement of earthmoving equipment in road construction is possible.