Chaotic semi-express buses in a loop
Urban mobility involves many interacting components: buses, cars, commuters, pedestrians, trains, etc., making it a very complex system to study. Even a bus system responsible for delivering commuters from their origins to their destinations in a loop service already exhibits very complicated dynami...
| Main Authors: | , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Online Access: | https://hdl.handle.net/10356/153738 |
| _version_ | 1826123782372196352 |
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| author | Saw, Vee-Liem Vismara, Luca Chew, Lock Yue |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Saw, Vee-Liem Vismara, Luca Chew, Lock Yue |
| author_sort | Saw, Vee-Liem |
| collection | NTU |
| description | Urban mobility involves many interacting components: buses, cars, commuters, pedestrians, trains, etc., making it a very complex system to study. Even a bus system responsible for delivering commuters from their origins to their destinations in a loop service already exhibits very complicated dynamics. Here, we investigate the dynamics of a simplified version of such a bus loop system consisting of two buses serving three bus stops. Specifically, we consider a configuration of one bus operating as a normal bus that picks up passengers from bus stops A and B and then delivers them to bus stop C, while the second bus acts as an express bus that picks up passengers only from bus stop B and then delivers them to bus stop C. The two buses are like asymmetric agents coupled to bus stop B as they interact via picking up passengers from this common bus stop. Intriguingly, this semi-express bus configuration is more efficient and has a lower average waiting time for buses compared to a configuration of two normal buses or a configuration of two express buses. We reckon that the efficiency arises from the chaotic dynamics exhibited in the semi-express system, where the tendency toward anti-bunching is greater than that toward bunching, in contradistinction to the regular bunching behavior of two normal buses or the independent periodic behavior of two non-interacting express buses. |
| first_indexed | 2024-10-01T06:09:57Z |
| format | Journal Article |
| id | ntu-10356/153738 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:09:57Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1537382023-02-28T19:57:35Z Chaotic semi-express buses in a loop Saw, Vee-Liem Vismara, Luca Chew, Lock Yue School of Physical and Mathematical Sciences Data Science and Artificial Intelligence Research Centre Complexity Institute Science::Physics Chaotic Dynamics Human Urban mobility involves many interacting components: buses, cars, commuters, pedestrians, trains, etc., making it a very complex system to study. Even a bus system responsible for delivering commuters from their origins to their destinations in a loop service already exhibits very complicated dynamics. Here, we investigate the dynamics of a simplified version of such a bus loop system consisting of two buses serving three bus stops. Specifically, we consider a configuration of one bus operating as a normal bus that picks up passengers from bus stops A and B and then delivers them to bus stop C, while the second bus acts as an express bus that picks up passengers only from bus stop B and then delivers them to bus stop C. The two buses are like asymmetric agents coupled to bus stop B as they interact via picking up passengers from this common bus stop. Intriguingly, this semi-express bus configuration is more efficient and has a lower average waiting time for buses compared to a configuration of two normal buses or a configuration of two express buses. We reckon that the efficiency arises from the chaotic dynamics exhibited in the semi-express system, where the tendency toward anti-bunching is greater than that toward bunching, in contradistinction to the regular bunching behavior of two normal buses or the independent periodic behavior of two non-interacting express buses. Nanyang Technological University Published version This work was supported by the Joint WASP/NTU Program (Project No. M4082189) and the DSAIR@NTU Grant (Project No. M4082418). 2022-01-20T06:51:24Z 2022-01-20T06:51:24Z 2021 Journal Article Saw, V., Vismara, L. & Chew, L. Y. (2021). Chaotic semi-express buses in a loop. Chaos, 31(2), 023122-. https://dx.doi.org/10.1063/5.0039989 1054-1500 https://hdl.handle.net/10356/153738 10.1063/5.0039989 33653069 2-s2.0-85101440466 2 31 023122 en M4082189 M4082418 Chaos © 2021 Author(s). All rights reserved. This paper was published by AIP Publishing in Chaos and is made available with permission of Author(s). application/pdf |
| spellingShingle | Science::Physics Chaotic Dynamics Human Saw, Vee-Liem Vismara, Luca Chew, Lock Yue Chaotic semi-express buses in a loop |
| title | Chaotic semi-express buses in a loop |
| title_full | Chaotic semi-express buses in a loop |
| title_fullStr | Chaotic semi-express buses in a loop |
| title_full_unstemmed | Chaotic semi-express buses in a loop |
| title_short | Chaotic semi-express buses in a loop |
| title_sort | chaotic semi express buses in a loop |
| topic | Science::Physics Chaotic Dynamics Human |
| url | https://hdl.handle.net/10356/153738 |
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