Public transport is being promoted worldwide to help resolve the environmental and congestion problems besetting cities. Travel comfort is increasingly seen as crucial to effecting the switch from private motorized modes to public transit. The purpose of this study is to measure the physical and human factors impacting travel comfort on mass urban rail transport. Randomly selected passengers (n = 368) commuting in subway cars at 14 levels of in-vehicle passenger density were intercepted to evaluate their satisfaction with the following factors related to comfort: crowding, noise, smell, air quality, temperature, illumination, vibration and safety from crime. Satisfaction with regard to crowding was negatively and linearly related to the number of passengers in the subway car. In the multiple regression model, however, perceived noise intensity accounted for more than the actual number of individuals in the car in the evaluation of crowding, with smell as a second significant contributor. Other significant factors in travel comfort included air quality, temperature, and fear of crime. Although it is found that objectively measured passenger crowding explains a major part of perceived travel comfort, other factors associated with the ambient environment are at least as important. Corrective measures to improve travel comfort could address the ambient environmental factors in the medium term, while the structural issue of over-crowding needs to be addressed in the longer term.

全世界都在促进公共交通，以帮助解决困扰城市的环境和交通拥堵问题。人们越来越认为，出行舒适对实现从私人机动车模式到公共交通的转换至关重要。这项研究的目的是测量影响大众运输的舒适性的人为因素。随机抽取了14个车载乘客密度在地铁车厢中上下班的乘客（n = 368），以评估他们对与舒适性相关的以下因素的满意度：拥挤，噪音，气味，空气质量，温度，光照，振动和犯罪安全。对拥挤的满意度与地铁车厢中的乘客数量呈负相关和线性关系。但是，在多元回归模型中 在拥挤评估中，感知到的噪声强度比汽车中的实际人数多，其中气味是第二重要的因素。其他影响旅行舒适度的重要因素包括空气质量，温度和对犯罪的恐惧。尽管发现客观测量的乘客拥挤可以解释感觉到的旅行舒适度的主要部分，但与周围环境相关的其他因素至少同样重要。改善旅行舒适度的纠正措施可以在中期解决环境因素，而长期需要解决过度拥挤的结构性问题。其他影响旅行舒适度的重要因素包括空气质量，温度和对犯罪的恐惧。尽管发现客观测量的乘客拥挤可以解释感觉到的旅行舒适度的主要部分，但与周围环境相关的其他因素至少同样重要。改善旅行舒适度的纠正措施可以在中期解决环境因素，而长期需要解决过度拥挤的结构性问题。其他影响旅行舒适度的重要因素包括空气质量，温度和对犯罪的恐惧。尽管发现客观测量的乘客拥挤可以解释感觉到的旅行舒适度的主要部分，但与周围环境相关的其他因素至少同样重要。改善旅行舒适度的纠正措施可以在中期解决环境因素，而长期需要解决过度拥挤的结构性问题。