| Title |
Correlation Analysis Between O/D Trips and Call Detail Record: A Case Study of Daegu Metropolitan Area |
| Authors |
김근욱(Kim, Keun-uk) ; 정연식(Chung, Younshik) |
| DOI |
https://doi.org/10.12652/Ksce.2019.39.5.0605 |
| Keywords |
통신 빅 데이터;기종점 통행량;상관분석;대응표본t-test;스마트 도시 Mobile phone big data;Call detail record (CDR);Origin-Destination (O/D);Correlation analysis;Paired t-test;Smart city |
| 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. |