In many developing countries, the difficulty of standardizing trip measurements, the flexibility with which vehicles are used and the absence of a conventional sampling frame for interviewing road users are the main obstacles to forecasting travel from land use. A study in Kenya has shown the difficulties of using roadside interviews for establishing trip relationships, but has indicated that a suitable sampling frame could be constructed by a direct survey of vehicle owners. The vehicle owner in the broadest sense would then become the fundamental unit for trip studies. The Report suggests that home and workplace questionnaire surveys, focussing on the vehicle owner, may be suitable for the extensive sampling necessary to evolve standards for studies of rural trip characteristics. Definitions of employment suitable for land-use/transport studies in developing countries are suggested in the Report. These covered only 4 percent of the population of the study area, but nevertheless, statistically they provided the best explanation both for vehicle ownership and for trip generation. Trip origins from Agricultural and Residential land uses did not reach significant proportions. The main generators were Retail and Commercial, Road Transport, and Government Administration land uses, which together accounted for over 75 percent of urban trip origins and 57 percent of all trip origins. (Copyright (c) Crown Copyright 1977.)
Forecasting Rural Road Travel in Developing Countries from Studies of Land Use
1977
38 pages
Report
No indication
English
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