what is a loop service?
A streetcar circle route
Loop Service
The Loop Service is a streetcar circle route in Portland, Oregon, United States, that is part of the Portland Streetcar system.
wiki:10102396
Loop Service [SEP] Introduction
The Loop Service is a streetcar circle route in Portland, Oregon, United States, that is part of the Portland Streetcar system. Operated by Portland Streetcar, Inc. and TriMet, it consists of two distinct services: the A Loop, which runs clockwise, and the B Loop, which runs counterclockwise. Each service travels a loop between both sides of the Willamette River, crossing it on the Broadway Bridge in the north and Tilikum Crossing in the south. The route connects Portland's downtown, Pearl District, Lloyd District, Central Eastside, and South Waterfront. It serves the city's various landmarks and institutions, including the Rose Quarter, the Oregon Convention Center, the Oregon Museum of Science and Industry (OMSI), Oregon Health & Science University (OHSU), and Portland State University (PSU).