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Article

Estimating Air-passengers’ Value of Travel Time Using Individual Mobile Phone Data

개별 이동통신자료를 이용한 항공여객의 통행시간 가치 추정

Youngeun CHOI1*
,
Bomyi YANG2
최 영은1*
,
양 봄이2
1Manager, New Airport Planning Department, Korea Airports Corporation, Seoul 07505, Korea
2Senior Research Associate, Public and Private Infrastructure Investment Management Center, Korea Development Institute, Sejong 30149, Korea
1한국공항공사 신공항추진단 과장
2한국개발연구원 공공투자관리센터 전문연구원
* Corresponding Author
31 December 2019. pp. 458-470
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Abstract

The value of travel time, the marginal monetary value you are willing to pay to save a unit of travel time, is commonly used in analysis of passenger behaviors and (pre)feasibility studies in transportation planning. It is also a critical factor in (pre)feasibility studies in airport planning as it is used to estimate benefits of time savings of a new project, the purpose of which is to reduce aircraft delays, relieve terminal congestion and improve ground access time. However, due to the limitations of data and lack of related studies, air-passengers’ value of travel time currently used is calculated by multiplying certain ratio to the surface transport passengers’ value of travel time. In this paper, the value of air-passengers’ travel time is estimated by using individual mobile phone data of people who traveled through Gimpo International airport. With mixed-logit, we revealed the travel time and the travel cost have significant effects on air-passengers’ access mode choice and the effect differs by gender, day of the week, and travel distance. The estimated average value of travel time of air-passengers is 21,874KRW/hr per person, which is 1.3-1.5 times higher value than the value of travel time generally used in (pre)feasibility studies in South Korea and also higher than the typical passenger car’s travel time value in the Seoul metropolitan area.

Keywords
air-passengers
ground access mode choice
individual mobile phone data
mixed logit model
value of travel time

통행시간 가치는 통행자가 한 단위의 통행시간을 단축하기 위해 지불하고자 하는 금액으로, 교통계획에 있어 이용객의 행태분석과 경제적 타당성 분석을 위한 편익산정 등에 활용된다. 이 중 공항계획 분야에서 통행시간 가치는 항공기 운항 및 터미널 내부 혼잡 완화는 물론, 신공항 건설에 따른 접근시간 감소 등 항공수단 이용객의 통행시간 절감편익 산정 시 주요 원단위로 활용되어 사업의 경제적 타당성에 큰 영향을 미치고 있다. 그러나 현재 공항계획 분야에서 사용 중인 항공여객의 통행시간 가치는 관련 연구 미흡 등의 한계로 인해 한계임금율법에 의해 산정된 지상교통 이용객의 시간가치에 일정 비율을 곱하여 개략적으로 산정하는 실정으로, 관련 연구 및 지침 개정의 필요성이 지속적으로 제기되고 있다. 이에 본 연구에서는 2018년 10월 1개월간 김포공항 이용객의 이동통신 자료를 활용하여 실제 항공여객의 접근수단 선택행태를 바탕으로 항공여객의 통행시간 가치를 산정하였다. 혼합로짓모형의 추정 결과, 통행시간과 통행비용은 공항 접근수단 선택에 통계적으로 유의미한 영향을 미치는 것으로 나타났으며, 이러한 영향은 성별, 주말통행 여부, 통행거리에 따라 유의미한 차이가 있는 것으로 분석되었다. 한계대체율을 이용하여 항공여객의 통행시간 가치를 산정한 결과 21,874원/인-시간으로 추정되었으며, 이는 현재 국내 (예비)타당성조사에서 적용 중인 항공여객의 통행시간 가치 대비 약 1.3-1.5배 수준이며, 선행연구에서 도출된 수도권의 일반적인 승용차 통행시간 가치에 비해서도 높은 수준이다.

키워드
항공여객
접근수단 선택
개별 이동통신자료
혼합로짓모형
통행시간 가치
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Information
  • Publisher :Korean Society of Transportation
  • Publisher(Ko) :대한교통학회
  • Journal Title :Journal of Korean Society of Transportation
  • Journal Title(Ko) :대한교통학회지
  • Volume : 37
  • No :6
  • Pages :458-470
  • Received Date : 2019-09-05
  • Revised Date : 2019-10-23
  • Accepted Date : 2019-11-21
  • DOI :https://doi.org/10.7470/jkst.2019.37.6.458
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