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2. Blazina, E., 2020. Port Authority’s initial bus stop eliminations showing on-time improvements. Pittsburgh Post-Gazette 〈https://www.post-gazette.com/news/transportation/2020/02/23/Port-Authority-bus-stops-on-time-performance-improvements-efficiency-transit/stories/202002230032〉.
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5. Devunuri, S., Qiam, S., Lehe, L., 2023. Bus Stop Spacings for Transit Providers in the US. 10.7910/DVN/SFBIVU.