Title: Theoretical and experimental analysis of the passenger's reading comfort to luminous environment in Chinese high-speed trains

Authors: Chunjun Chen; Zhiying He; Gang Yang; Min Zhang; Guoqing Qu

Addresses: School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, Sichuan Province, China; Technology and Equipment of Rail Transit Operation and Maintenance Key Laboratory of Sichuan Province, Southwest Jiaotong University, Chengdu, Sichuan Province, China ' School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, Sichuan Province, China; Technology and Equipment of Rail Transit Operation and Maintenance Key Laboratory of Sichuan Province, Southwest Jiaotong University, Chengdu, Sichuan Province, China ' School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, Sichuan Province, China; Technology and Equipment of Rail Transit Operation and Maintenance Key Laboratory of Sichuan Province, Southwest Jiaotong University, Chengdu, Sichuan Province, China ' School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, Sichuan Province, China; Technology and Equipment of Rail Transit Operation and Maintenance Key Laboratory of Sichuan Province, Southwest Jiaotong University, Chengdu, Sichuan Province, China ' School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, Sichuan Province, China; Technology and Equipment of Rail Transit Operation and Maintenance Key Laboratory of Sichuan Province, Southwest Jiaotong University, Chengdu, Sichuan Province, China

Abstract: This paper is aimed at finding the nature of passengers' reading comfort in Chinese high-speed trains to the luminous environment. First, based on the ideology of photon mapping, the theoretical analysis is conducted to reveal the mechanism of the passengers' reading comfort qualitatively. Then, based on the experimental data gained from the comprehensive comfort test-rig, the mechanism of the reading comfort is developed quantitatively based on fuzzy algorithm. Results show that the best illumination for the reading passengers ranges from 175 Lux to 450 Lux and the best range of the colour temperature should be approximately natural. Moreover, the higher the illumination is, the more likely that the passengers will feel comfortable in higher degree of colour temperature. These conclusions can be applied in guiding the design of the comfortable luminous environment of Chinese high-speed trains.

Keywords: luminous environment; illumination; colour temperature; reading comfort; Chinese high-speed trains.

DOI: 10.1504/IJEE.2024.137349

International Journal of Environmental Engineering, 2024 Vol.12 No.3, pp.218 - 236

Accepted: 02 Aug 2023
Published online: 13 Mar 2024 *