THE EFFICIENCY OF OPERATION OF EARTHMOVING PLANT ON ROAD CONSTRUCTION SITES
This report describes a study of the efficiency of operation of earthmoving plant on road construction sites. Descriptions of the techniques used in the site observations and methods of analysis of the data are included. The results show that losses in efficiency totalled 37 per cent of the overall machine time observed. This figure does not include the "slowing down" effects due to adverse soil conditions. About half of the losses (19 per cent) occurred while the machines were empty, i.e. Returning from the fill to the excavation area, while only 5 per cent was lost during the loaded part of the earthmoving cycle. The remainder of the losses (13 per cent) were associated with machines that were absent from the earthmoving operations, usually in the plant yard undergoing repair. Main reasons for lost efficiency were the delays associated with machine availability (about 15 per cent). Other major causes of losses in efficiency were operating the machines more slowly than usual (6 per cent), waiting for load assistance (6 per cent) and delays associated with the operators (5 per cent). /Author/
-
Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/02667045
-
Corporate Authors:
Transport and Road Research Laboratory (TRRL)
Wokingham, Berkshire United Kingdom -
Authors:
- PARSONS, A W
- Publication Date: 1977
Media Info
- Features: Figures; Photos; References; Tables;
- Pagination: 17 p.
-
Serial:
- Publication of: Transport and Road Research Laboratory
- Publisher: Transport and Road Research Laboratory (TRRL)
- ISSN: 0266-7045
Subject/Index Terms
- TRT Terms: Construction; Construction management; Construction sites; Earthwork; Earthwork cutting; Economic efficiency; Embankments; Equipment; Excavations; Freight handling; Loads; Operating costs; Properties of materials; Road construction; Soils; Traffic delays
- Uncontrolled Terms: Efficiency; Loading
- Old TRIS Terms: Haulage; Soil characteristics
- Subject Areas: Construction; Economics; Freight Transportation; Geotechnology; Highways; Materials;
Filing Info
- Accession Number: 00177363
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: Monograph
- Files: TRIS, ATRI
- Created Date: Sep 14 1978 12:00AM