Abstract Since the 1980s, significant investments have been made in urban rail transit across the United States, particularly using light rail technology. Most of these light rail systems have been built in Sunbelt cities which no longer had legacy rail systems. As a result, they were constructed using a building blocks approach, being funded corridor by corridor. Most research, however, on urban rail performance has taken place at the system-wide level, leaving a significant gap at the level of the transit corridor. This research examined nineteen urban rail corridors in Denver, Salt Lake City, and Portland. A performance score was constructed for each corridor based upon ridership per mile, ridership growth, capital costs, and the cost of ongoing operations. These scores were then compared with the geographic profile of each corridor studied. Corridors in each city ranked high and low, with no city emerging as a clear frontrunner. More centrally-located corridors in each city registered the highest performance scores, while longer corridors in more peripheral locations had lower performance scores. Headways, population density, job density, walkability, and percentage renter occupied housing units were found to have a statistically significant relationship with high corridor performance, largely in line with previous studies, though median income, bus connections, and park and ride spaces were not found to increase performance in this study.

中文翻译：

---

走廊层面城市轨道交通系统性能的调查：美国西部的比较分析

摘要 自 1980 年代以来，美国对城市轨道交通进行了大量投资，尤其是轻轨技术。大多数轻轨系统都建在不再拥有传统铁路系统的阳光地带城市。因此，它们是使用积木式方法建造的，由一条走廊资助。然而，大多数关于城市轨道性能的研究是在全系统层面进行的，在交通走廊层面留下了显着的差距。这项研究调查了丹佛、盐湖城和波特兰的 19 条城市铁路走廊。根据每英里的乘客人数、乘客人数增长、资本成本和持续运营成本，为每个走廊构建了一个绩效评分。然后将这些分数与所研究的每个走廊的地理概况进行比较。每个城市的走廊排名高低，没有一个城市成为明显的领跑者。每个城市中更多位于中心的走廊获得了最高的绩效评分，而位于更多外围位置的较长走廊的绩效评分较低。研究发现，人行道、人口密度、工作密度、步行便利性和租户占用住房单元的百分比与高走廊性能具有统计上的显着关系，与之前的研究基本一致，尽管收入中位数、公交车连接以及停车和乘车空间并非如此发现可以提高本研究中的表现。而在更外围位置的更长走廊的性能得分较低。研究发现，人行道、人口密度、工作密度、步行便利性和租户占用住房单元的百分比与高走廊性能具有统计上的显着关系，与之前的研究基本一致，尽管收入中位数、公交车连接以及停车和乘车空间并非如此发现可以提高本研究中的表现。而在更外围位置的更长走廊的性能得分较低。研究发现，人行道、人口密度、工作密度、步行便利性和租户占用住房单元的百分比与高走廊性能具有统计上的显着关系，与之前的研究基本一致，尽管收入中位数、公交车连接以及停车和乘车空间并非如此发现可以提高本研究中的表现。