The geographical stability of a typical trip production model: Applications of national and local data in four urban areas
✍ Scribed by C. P. Hayfield; R. B. Stoker
- Publisher
- Springer US
- Year
- 1978
- Tongue
- English
- Weight
- 693 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0049-4488
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✦ Synopsis
Estimates of the numbers of trips likely to be made by individuals and of the modes of transport that will be available to them for those trips are provided by the trip production model. The objective of the work described in this paper was to investigate the geographical stability of the trip production model by comparing the numbers of trips estimated by the model when using national rather than local data. The 1972/3 National Travel Survey was used as the national data. Household interview survey data from the transportation studies of Lincoln, Sheffield/Rotherham, South East Dorset and Bristol were the local data sources. Three home based trip purposes are modelled; 24 hour work, 24 hour shop, 24 hour other.
The models calibrated from national and local data perform similarly provided both operate with local trip rates. The car ownership sub-model with national parameters produces similar forecasts to the models with local parameters. There are probably real differences in household trip rates for some trip purposes between urban areas.