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http://dx.doi.org/10.12652/Ksce.2019.39.5.0605

Correlation Analysis Between O/D Trips and Call Detail Record: A Case Study of Daegu Metropolitan Area  

Kim, Keun-uk (Busan Metropolitan Council Legislation & Policy Office)
Chung, Younshik (Yeungnam University)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.39, no.5, 2019 , pp. 605-612 More about this Journal
Abstract
Traditionally, travel demand forecasts have been conducted based on the data collected by a survey of individual travel behavior, and their limitations such as the accuracy of travel demand forecasts have been also raised. In recent, advancements in information and communication technologies are enabling new datasets in travel demand forecasting research. Such datasets include data from global positioning system (GPS) devices, data from mobile phone signalling, and data from call detail record (CDR), and they are used for reducing the errors in travel demand forecasts. Based on these background, the objective of this study is to assess the feasibility of CDR as a base data for travel demand forecasts. To perform this objective, CDR data collected for Daegu Metropolitan area for four days in April including weekdays and weekend days, 2017, were used. Based on these data, we analyzed the correlation between CDR and travel demand by travel survey data. The result showed that there exists the correlation and the correlation tends to be higher in discretionary trips such as non-home based business, non-home based shopping, and non-home based other trips.
Keywords
Mobile phone big data; Call detail record (CDR); Origin-Destination (O/D); Correlation analysis; Paired t-test; Smart city;
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