30th Street Station in the context of "Keystone Service"

Interior design is the art and science of enhancing the interior of a building to achieve a healthier and more aesthetically pleasing environment for the people using the space. With a keen eye for detail and a creative flair, an interior designer is someone who plans, researches, coordinates, and manages such enhancement projects. Interior design is a multifaceted profession that includes conceptual development, space planning, site inspections, programming, research, communicating with the stakeholders of a project, construction management, and execution of the design. Interior designers make use of fundamental design principles from the visual arts used to help viewers understand a given scene.

This is a list of the busiest Amtrak stations in the United States ranked by their respective Amtrak ridership by fiscal year. Ridership is defined as the total number of boarding and alightings at each station. Ridership figures since 2015 have been provided for comparative purposes. In the fiscal year 2020, ridership was down significantly across the board due to the impact of the COVID-19 pandemic. Ridership numbers are for Amtrak only—commuter rail, subway, and other modes are not included.

The SEPTA Regional Rail system (reporting marks SEPA, SPAX) is a commuter rail network owned by SEPTA and serving the Philadelphia metropolitan area. The system has 13 branches and more than 150 active stations in Philadelphia, Pennsylvania, its suburbs and satellite towns and cities. It is the sixth-busiest commuter railroad in the United States. In 2016, the Regional Rail system had an average of 132,000 daily riders and 118,800 daily riders as of 2019.

The core of the Regional Rail system is the Center City Commuter Connection, a tunnel linking three Center City stations: the above-ground upper level of 30th Street Station, the underground Suburban Station, and Jefferson Station. All trains stop at these Center City stations (with the exception of the Cynwyd Line); most also stop at Temple University station on the campus of Temple University in North Philadelphia. Operations are handled by the SEPTA Railroad Division.