PURPOSES : This study proposes an index for analyzing mobility based on smartcard and taxi data to evaluate imbalances in public transit.
METHODS : The proposed mobility index is calculated based on the difference between the mobility indexes of public transit and taxis using the variables of the in-vehicle time, waiting time, and driving ratio. For a more detailed analysis, the distances are divided into short distances, medium distances, and long distances.
RESULTS : Public transit mobility indexes are generally evenly distributed, but the taxi mobility indexes are located in the largest legend. When comparing the respective mobilities of public transit and taxis, many areas with a high mobility of taxis (similar to the distribution) exist, especially in the outskirts such as Dobong-gu, Nowon-gu, Gangdong-gu, Guro-gu, Geumcheon-gu, and Eunpyeong-gu. On average, the mobility of public transit according to the distance is smaller in a short distance and higher in a long distance.
CONCLUSIONS : The results demonstrate the use of the proposed index for analyzing the basic statuses of complementary indexes for evaluating public transit imbalances. In the future, more detailed results (including socioeconomic variables corresponding to the grid areas) should be studied to identify the impacts of the mobility index.

ABSTRACT
1. 서론
2. 선행연구
    2.1. 이동성 개념 정의
    2.2. 이동성 지표 산출
    2.3. 본 연구의 차별성
3. 이동성 지표 개발
4. 데이터
    4.1. 데이터 수집
    4.2. 데이터 전처리
5. 분석결과
    5.1. 전체 분석결과
    5.2. 거리에 따른 세부 분석
6. 결론 및 향후 연구
REFERENCES

• 황재연(서울시립대학교 교통공학과 석사과정) | Hwang, Jae-Yeon
• 박신형(서울시립대학교 교통공학과 부교수) | Park Shin Hyoung
• 조신형(서울시립대학교 교통공학과 연구교수) | Cho Shin-Hyung Corresponding Author