Economic assessment of a Dynamic Autonomous Road Transit system for Singapore
Autonomous vehicle (AV) has been discussed as a promising solution to substantially improve transit system performance. However, the feasibility of AVs at a system level remains unclear. This paper offers an early glimpse of the efficiency performance of an AV-based transit system in Singapore, name...
| Main Authors: | , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/159683 |
| _version_ | 1824455529631580160 |
|---|---|
| author | Sun, Shan-Shan Wong, Yiik Diew Rau, Andreas |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Sun, Shan-Shan Wong, Yiik Diew Rau, Andreas |
| author_sort | Sun, Shan-Shan |
| collection | NTU |
| description | Autonomous vehicle (AV) has been discussed as a promising solution to substantially improve transit system performance. However, the feasibility of AVs at a system level remains unclear. This paper offers an early glimpse of the efficiency performance of an AV-based transit system in Singapore, namely Dynamic Autonomous Road Transit (DART). Compared to the existing bus system, the improved operational strategy of DART service can garner higher efficiency with respective reductions of 44%, 66% and 47% in total cost of ownership (TCO), TCO/km/h and TCO/passenger. A stated-preference survey was conducted, and the data analysed via a mixed logit model. Travel time and travel cost remain critical for determining an individual's travelling preferences. In addition, the current paper presents empirical evidence that travellers are more sensitive to travel time reduction, compared to travel cost reduction. It is also found that a traveller's preferences towards walking, waiting and in-vehicle activities play an influential role of behavioural adjustment. Value of time (VOT) was calibrated with a value of S$ 31 and a reduction of 49% was observed for individuals who performed work-related activities while travelling. |
| first_indexed | 2025-02-19T03:39:40Z |
| format | Journal Article |
| id | ntu-10356/159683 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:39:40Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1596832022-07-04T02:48:44Z Economic assessment of a Dynamic Autonomous Road Transit system for Singapore Sun, Shan-Shan Wong, Yiik Diew Rau, Andreas School of Civil and Environmental Engineering Engineering::Civil engineering Autonomous Vehicles Efficiency Analysis Autonomous vehicle (AV) has been discussed as a promising solution to substantially improve transit system performance. However, the feasibility of AVs at a system level remains unclear. This paper offers an early glimpse of the efficiency performance of an AV-based transit system in Singapore, namely Dynamic Autonomous Road Transit (DART). Compared to the existing bus system, the improved operational strategy of DART service can garner higher efficiency with respective reductions of 44%, 66% and 47% in total cost of ownership (TCO), TCO/km/h and TCO/passenger. A stated-preference survey was conducted, and the data analysed via a mixed logit model. Travel time and travel cost remain critical for determining an individual's travelling preferences. In addition, the current paper presents empirical evidence that travellers are more sensitive to travel time reduction, compared to travel cost reduction. It is also found that a traveller's preferences towards walking, waiting and in-vehicle activities play an influential role of behavioural adjustment. Value of time (VOT) was calibrated with a value of S$ 31 and a reduction of 49% was observed for individuals who performed work-related activities while travelling. National Research Foundation (NRF) This work is part of the first author's PhD research, as well as a part of TUMCREATE's research which is financially supported by the Singapore National Research Foundation under its Campus for Research Excellence and Technological Enterprise (CREATE) programme. 2022-07-04T02:48:43Z 2022-07-04T02:48:43Z 2020 Journal Article Sun, S., Wong, Y. D. & Rau, A. (2020). Economic assessment of a Dynamic Autonomous Road Transit system for Singapore. Research in Transportation Economics, 83, 100843-. https://dx.doi.org/10.1016/j.retrec.2020.100843 0739-8859 https://hdl.handle.net/10356/159683 10.1016/j.retrec.2020.100843 2-s2.0-85083520864 83 100843 en Research in Transportation Economics © 2020 Elsevier Ltd. All rights reserved. |
| spellingShingle | Engineering::Civil engineering Autonomous Vehicles Efficiency Analysis Sun, Shan-Shan Wong, Yiik Diew Rau, Andreas Economic assessment of a Dynamic Autonomous Road Transit system for Singapore |
| title | Economic assessment of a Dynamic Autonomous Road Transit system for Singapore |
| title_full | Economic assessment of a Dynamic Autonomous Road Transit system for Singapore |
| title_fullStr | Economic assessment of a Dynamic Autonomous Road Transit system for Singapore |
| title_full_unstemmed | Economic assessment of a Dynamic Autonomous Road Transit system for Singapore |
| title_short | Economic assessment of a Dynamic Autonomous Road Transit system for Singapore |
| title_sort | economic assessment of a dynamic autonomous road transit system for singapore |
| topic | Engineering::Civil engineering Autonomous Vehicles Efficiency Analysis |
| url | https://hdl.handle.net/10356/159683 |
| work_keys_str_mv | AT sunshanshan economicassessmentofadynamicautonomousroadtransitsystemforsingapore AT wongyiikdiew economicassessmentofadynamicautonomousroadtransitsystemforsingapore AT rauandreas economicassessmentofadynamicautonomousroadtransitsystemforsingapore |