This survey is designed to measure the trips made by commercial vehicles within the internal area. The data is obtained by issuing drivers with forms on which they record each trip, together with trip origin, destination, purpose and parking details. The size of the sample depends on the size of the survey area and also on the variability of goods-use activity, ranging from 100 per cent for a small town to about 25 per cent for a large area. The population may be obtained from the land-use survey, which will indicate addresses at which commercial vehicles may be kept or alternatively excise licence records may be consulted. A typical questionnaire is reproduced in figure 5.1.
KeywordsSurvey Area Commercial Vehicle Vacant Land Train Passenger Vehicle Trip
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