01472654

Component

Urban earthmoving operations are analyzed to identify significant factors that impact relatively low productivity. The research project was conducted in the urban interchange reconstruction of Interstate Highway 235 (I-235) in Des Moines, Iowa. By using observational studies and a statistical analysis method, the factors were identified, including match factor, number of passes, and loading cycle time per bucket. Number of truck, match factor, travel time, and hauling distance were identified as the unique factors for the off-site earthmoving project, while the start time and travel time were significant factors for the on-site project. This research also identified significant factors for the truck bunching and showed that the match factor from the urban earthmoving project does not linearly correlate with the productivity of each truck. Reducing the hauling distance for urban earthmoving projects was the principal method for improving productivity. Based on the research results, a pre-planning and execution method was proposed to improve earthmoving productivity for urban interchange reconstruction.

This paper was sponsored by TRB committee AFS10 Transportation Earthworks.

01470560

13-4940

English

16p

2013

Transportation Research Board 92nd Annual Meeting

Digital/other

Figures; References; Tables

Bridge construction; Earthwork; Factor analysis; Interchanges; Multiple regression analysis; Productivity; Urban highways

Iowa

Bridges and other structures; Construction; Highways; I53: Construction of Bridges and Retaining Walls

Transportation Research Board Annual Meeting 2013 Paper #13-4940

PRP, TRIS, TRB, ATRI

Feb 5 2013 12:57PM