THE NEW TRRL ROAD INVESTMENT MODEL: RTIMZ. PROCEEDINGS OF THE SRI LANKA TRANSPORTATION FORUM HELD UNIVERSITY OF MORATUWA, SRI LANKA, JUNE 20-22, 1983

A computer model is described which is designed to aid investment decisions within the roads sector in developing countries. The model calculates the construction cost of a road and predicts the condition of the road as time passes and vehicles travel over it. Having predicted the condition of the road, the model estimates the costs of road maintenance and the cost of operation of the vehicles for each year. All these costs are then discounted back to the base year and summed over the life of the road to obtain the total cost. All estimates are made in terms of physical quantities and costs are obtained by applying unit rates to these quantities. (TRRL)9

• Corporate Authors:

  Moratuwa University, Sri Lanka

  Department of Civil Engineering
  Moratuwa,   Sri Lanka 
• Authors:
  • Robinson, R
  • Parsley, L
• Publication Date: 1983

Media Info

• Features: Figures; References; Tables;
• Pagination: n.p.

Subject/Index Terms

• TRT Terms: Construction; Costs; Developing countries; Evaluation; Forecasting; Investments; Maintenance management; Motor vehicles; Operating costs; Pavements; Simulation
• Uncontrolled Terms: Construction costs; Maintenance costs; Pavement conditions
• ITRD Terms: 8525: Conference; 224: Cost; 2248: Decision process; 150: Developing countries; 8673: Digital computer; 244: Financing; 227: Investment; 3847: Maintenance; 6473: Mathematical model; 221: Operating costs; 3665: Road construction; 1053: Road network
• Subject Areas: Administration and Management; Construction; Finance; Highways; Pavements; Planning and Forecasting;

Filing Info

• Accession Number: 00478822
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Jan 31 1989 12:00AM