Development of an experimental model to quantitative evaluatton of ride comfort for bus passengers
Year: 2026
Type: article
Abstract: This research develops an experimental model to quantitatively evaluate the smoothness of passenger movement on buses under real-world operating conditions. The research focuses on the dynamic interaction between the vehicle's suspension, seats, and the human body. The experimental system uses accelerometers that are located at representative positions of the passenger (thighs, chest and head), and vibration data are collected in the speed range of 20 to 60 km/h on urban roads. The measured vibration signal is evaluated according to the ISO 2631-1:1997 standard, in which the average RMS acceleration is used as the main evaluation indicator. The results showed that at 20 km/h, the RMS acceleration at the thigh position was less than 0.315 m/s2, corresponding to "Not uncomfortable" to "A little uncomfortable". When the speed exceeds 40 km/h, the RMS acceleration at the thigh position exceeds 1.0 m/s2 and reaches levels of "Very uncomfortable" and "Extremely uncomfortable" according to the ISO 2631-1 classification. In contrast, vibrations at the head and chest sites were consistently significantly lower over the entire survey speed range. These quantitative results indicate that the contact area between the thigh and the seat is the most sensitive to vibration, and that vehicle speed is an important factor affecting motion smoothness. The proposed experimental model is in line with international standards, to evaluate and support optimization in bus design and operation.
Source: EUREKA Physics and Engineering
Institution: Hanoi University of Industry
Language: English
Subfield: Automotive Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $161
OpenAlex ID: W7165166321