A Study of the Shaded Areas from the Vertical Sunshades of Bus Stop Shelters

Authors

  • Sopit Chaichana Faculty of Architecture, Rajamangala University of Technology Thanyaburi

DOI:

https://doi.org/10.14456/bei.2024.14

Keywords:

Bus Stop Shelter, Vertical Shading Device, Shaded Areas, Simulation

Abstract

The bus stop shelter serves as both a boarding point and a rest break along the route. The roof of the shelters provides sun protection and shade, which is critical in a hot climate. Most shelters have only a roof; however, side vertical sunshades provide additional shading or shaded areas. This research aims to determine and compare the shaded areas from the vertical sunshades in different positions of bus stop shelters in Bangkok when they face eight different directions. Using a computer program, simulate shadows from 8:00 a.m. to 4:00 p.m. on four critical days (a total of 36 hours) with eight different vertical sunshade models divided into three groups. The results showed that shelters with vertical sunshades can provide more average shaded areas than the shelters with only a roof. There is the number of hours during which the shaded area exceeds half of the total area, enough for users to have more shade while waiting for buses. As the shelters face different directions, there are varying shaded areas, as well as the number of hours during which the shaded area exceeds half of the total area. The shelter with a full back sunshade with half side sunshades (C3) had the highest average shaded area, followed by a shelter with a full back sunshade (A3). The results of this research can be utilized by the relevant organization to design bus stop shelters, which are an important factor in the perception of users regarding the service quality of public buses.

References

Amores, T. R. P., et al. (2023). Effect of green infrastructures supported by adaptative solar shading systems on livability in open spaces. Urban Forestry & Urban Greening, 82, 127886.

Bangkok Metropolitan Administration. (2021). Khumue Kan Patibatngan Samnakngan Rabop Khonsong Samnak Kan Charachon Lae Khonsong Phoso 2564. (In Thai) [Operating Manual, Transportation Office, Traffic and Transportation Department, B.E. 2564]. Retrieved March 1, 2022, from https://officialadmin.bangkok.go.th/public/upload_fm/ITA/O13/O13_22_4%20สำนักงานระบบขนส่ง.pdf

Chaiyakul, Y. (2008). Kan Wikhro Kan Bang Daet Lae Saeng Thammachat Doi Google SketchUp. (In Thai) [Google SketchUp for shading and daylighting analysis]. Retrieved May 15, 2022, from https://arch.kku.ac.th/pr/wp-content/uploads/2011/08/Abstract36.pdf

Dzyuban, Y., et al. (2022). Public transit infrastructure and heat perceptions in hot and dry climates. International journal of biometeorology, 66 (2), 345-356.

Emmanuel, R. (2016). Urban climate challenges in the tropics: rethinking planning and design opportunities. N.P.: World Scientific.

Kyropoulou, M. (2022). Shading Design for Outdoor Learning in Warm and Hot Climates Using Evolutionary Computation: A Case Study in Houston TX. In 2022 Annual Modeling and Simulation Conference (ANNSIM) (pp. 682-693). N.P.: IEEE.

Lachapelle, J. A., et al. (2023). Maximizing the pedestrian radiative cooling benefit per street tree. Landscape and Urban Planning, 230, 104608.

Leu, L., & Boonyaputthipong, C. (2023). A Study of Shading Devices in Modern Architecture for the Hot Humid Climate of Phnom Penh, Cambodia. Nakhara: Journal of Environmental Design and Planning, 22 (1), 301-301.

Lin, T. P., Matzarakis, A., & Huang, J. J. (2006). Thermal comfort and passive design strategy of bus shelters. Paper presented at 23rd International Conference on Passive and Low Energy Architecture, Geneva, Switzerland.

Lin, T. P., Matzarakis, A., & Hwang, R. L. (2010). Shading effect on long-term outdoor thermal comfort. Building and environment, 45 (1), 213-221.

London, M. O. (2017). Accessible Bus Stop Design Guidance. Retrieved December 1, 2021, from https://content.tfl.gov.uk/bus-stop-design-guidance.pdf

Marsh, A. J. (2014). 2D Sun-Path. Retrieved March 1, 2022, from https://drajmarsh.bitbucket.io/sun path2d.html

Peng, F., Xiong, Y., & Zou, B. (2021). Identifying the optimal travel path based on shading effect at pedestrian level in cool and hot climates. Urban Climate, 40, 100988.

Phongudomkul, S., Piriyasatta, P., & Thongkamsamut, Ch. (2021). Itthiphon Khong Rupbaep Thang Kaiyaphap Khong Upakon Bang Daet to Kha Samprasit Kan Bang Daet Khong Upakon Bang Daet Nai Prathet Thai. (In Thai) [An Influence of Physical Appearance of Shading Devices to Shading Coefficient in Thailand]. Built Environment Inquiry (BEI): Faculty of Architecture, Khon Kaen University, 20 (1), 49-61.

Shih, W. M., et al. (2017). Long-term perceptions of outdoor thermal environments in an elementary school in a hot-humid climate. International journal of biometeorology, 61, 1657-1666.

Wu, H., & Kriksic, F. (2012). Designing for pedestrian comfort in response to local climate. Journal of wind engineering and industrial aerodynamics, 104, 397-407.

Yamtraipat, N. (2006). Kan Chamlong Saphap Kan Koet Ngao Bon Natang Chak Upakon Bang Daet Chanit Naeonon Lae Naeotang Duai Khomphiotoe. (In Thai) [Computer simulation of shading profile on windows from overhang and fin shading devices]. Engineering and Applied Science Research, 33 (4), 391-402.

Yeang, K., et al. (2015). Design with Climate: Bioclimatic Approach to Architectural Regionalism-New and expanded Edition. N.P.: Princeton University Press.

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Published

2024-08-28

How to Cite

Chaichana, S. (2024). A Study of the Shaded Areas from the Vertical Sunshades of Bus Stop Shelters. Built Environment Inquiry, 23(2), 50–67. https://doi.org/10.14456/bei.2024.14

Issue

Section

บทความวิจัย (Research Articles)