Estimation of Freight Trip Generation Rates based on Commodity Flow Survey in Korea Minchoul Park, Hongmo Sung and Sungbong Chung
International Journal of Railway, vol. 5, no. 4, pp.139-143, 2012
Abstract : In Korea, almost 700 industrial parks are under operation. Generally, industrial parks consist of national industrial parks
and local industrial parks which are managed by a central government and by local governments respectively. The developing
countries such as Korea, China and Vietnam etc. have constructed many industrial parks, which result in the
change of land use pattern and also affect future trip demands. Therefore, in estimating traffic demands, it is very important
to consider the industrial park development. This study aims to improve the methodology in estimating a freight trip
generation rate with the data based on a nationwide commodity freight survey. The result showed that it is desirable to
apply freight trip generation rate by the industry sector in estimating freight trip generations and using the production
area of firm as an indicator. Specially, the reliability of the rates through a survey could be made sure because a sample
rate based on firms in industrial parks was over 25% and the response rate was over 67%. The sample rate and response
rate are very superior as compared to surveys conducted in many other countries. Because industrial parks have significant
effects on forecasting transportation demand in pre-feasibility studies of transport and logistics projects, it is
expected that the accuracy of freight trip demands would be improved through the results of this study.
Keyword :
Industrial parks, Transportation demand, National-wide commodity freight survey, Freight trip generation rate
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