Assessing Structural Sources of Discrepancies Between Survey-Based and Mobile-Derived Mobility Data in Seoul
설문조사 기반 통행 데이터와 모바일 기반 통행 데이터 간의 불일치 구조적 원인 분석: 서울시를 대상으로
- 주제(키워드) Mobile phone data , Cellular signaling data , Household travel survey , Structural Discrepancies , Travel behavior
- 발행기관 아주대학교 일반대학원
- 지도교수 Eui-Jin Kim
- 발행년도 2026
- 학위수여년월 2026. 2
- 학위명 석사
- 학과 및 전공 일반대학원 D.N.A.플러스융합학과
- 실제URI http://www.dcollection.net/handler/ajou/000000035529
- 본문언어 영어
- 저작권 아주대학교 논문은 저작권에 의해 보호받습니다.
목차
Chapter 1 INTRODUCTION １
1. Research Background １
2. Research Motivation ３
3. Research Questions and Contributions ４
Chapter 2 LITERATURE REVIEW ６
1. Behavioral Dependencies in HTS and the Limitations of Aggregate-Level Comparisons ６
2. Structural Biases in Passively Collected Mobile Phone Data ８
3. Spatial Contexts Shaping the Accuracy of Mobility Data Representation １０
Chapter 3 DATA １１
1. Data Sources and Preprocessing Overview １１
2. Mobile Phone–Based LTE/5G Cellular Signaling Data (LCS) １１
3. Household Travel Survey (HTS) １５
4. Scope Alignment and HTS-LCS Comparison １６
5. TAZ-level datasets for the city of Seoul ２５
Chapter 4 METHOD ２７
1. Overview of Analytical Framework ２７
2. Discrepancies in OD Trip Distributions ２７
A. Standardized Root Mean Square Error (SRMSE) ２９
B. Relative Zero-cell Ratio ３０
3. Principal Component Analysis (PCA) ３１
4. Linear Regression ３２
A. Construction of the dependent variable: Origin–SRMSE ３３
B. Model Specification ３４
C. Explanatory variables ３５
Chapter 5 RESULT AND DISCUSSION ３７
1. OD-level Distributional Discrepancy ３７
2. Results from PCA ４２
3. Effects of Spatial and Survey Attributes on Origin-level Discrepancies ４３
Chapter 6 CONCLUSION ４７
1. Main Findings and Policy Implications ４７
2. Limitations and Future Research ５０
REFERENCES ５３
초록 ６０
