TEMPRO Planning Data Guidance Note

Executive Summary

This introduction provides an overview of the processes and methodology involved in producing the TEMPRO planning data set for version 5. Also included is a summary of the enhancements and changes made for the updated TEMPRO planning data. These include:

• Upgrading to a higher resolution NTEM zoning system;
• Data sources and issues in updating to a 2001 base;
• Introducing policy-based forecasts for the whole of Great Britain;
• An enhanced methodological approach that underpins the generation of TEMPRO planning data.

Section 2 describes the methodology used to convert the input assumptions into coherent planning data forecasts. This methodology is implemented in a bespoke software tool, the Scenario Generator, which is redesigned for this version. This section traces logically through the forecasting process, attempting to explain the more complex issues diagrammatically. For the interest of the advanced user, a précis of the mathematical specification of this process is provided in Appendix E.

Section 3 describes the data sources used in the derivation of 2001 base year inputs. These include population, households, dwellings and employment, segmented into the required dimensions.

Section 4 describes the forecast data requirements needed by the Scenario Generator. This covers use of trend-based population, household and employment figures. The production of a policy-based data set for dwellings and the consultation process is also described in this section.

Section 5 describes the derivation of Expected Growth Factors used within the forecasting process. This includes a brief methodological overview and worked examples.

Section 6 summarises some of the initial results output from the forecasting process that represent the initial set of forecast planning data, to be subjected to further consultation with the Regional Planning Bodies.

Planning Data Guidance Note for version 5.3

Updated guidance note for version 5.4 of the data set

The Planning Data Guidance Note for version 5.3 of the TEMPRO data set is for the current definitive data set.  In July 2008 an updated TEMPRO data set (version 5.4) was released.  The updated Planning Data Guidance Note for version 5.4 of the data set is also available here.  This Guidance Note is expected to become definitive in April 2009, where the current note will become superseded.

Planning data guidance note for version 5.4