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This model is a reference point for the collective work of the Transport Division and Member Countries on the analysis of land and land-cum-sea transport routes that facilitate trade within Asia and with global markets.

As part of our efforts to improve transport facilitation in our Member Countries, UNESCAP has adapted a simple method to assist decision makers in understanding the pattern and magnitude of time and cost involved in the trasportation process and identify, isolate and address physical and non physical obstacles. The model output is a visual representation of the transport process from origin to destination, which plots distance (x-axis) against either cumulative time or cumulative cost (y-axis).

The "Time/Cost-Distance Methodology" (T/C-D)
- Provides graphical representation of cost and time data associated with transport processes;
- Can help identify inefficiencies and isolate bottlenecks along a particular route by looking at the cost and time characteristics of every section along a transport route;
- Includes a detailed breakdown of cost and time spent;
- Enables policy makers to compare the changes of cost and/or time required for transportation on a certain route over a period of time; and
- Helps evaluate competing modes of transport operating on the same route and assess alternative transport routes.

Practical applications
The Time/Cost-Distance Methodology was introduced by the UNESCAP secretariat in 2004 and found a wide practical use in different regions of the world for the assessment of operational efficiency of transport routes and for planning of trade and transport facilitation measures.

The Time/Cost-Distance Methodology is being updating by the UNESCAP secretariat from time to time based on the experience of its applications in order to help its further applications.

The recent set of updates includes:
- Quick Guide on the Use of Satellite Positioning Systems (SPS) to collect and process data with new tracking systems;
- Combination of the Time/Cost-Distance Methodology with the Cluster Methodology in cooperation with UNCTAD as the comprehensive transport facilitation toolkit to improve transport corridor performance.

For further details, please contact:
Mr. Edouard CHONG
Transport Facilitation and Logistics Section
Transport Division, UNESCAP, Bangkok
Tel: (66-2) 288-1378
Fax: (66-2) 288-1020
E-mail: [email protected], [email protected]