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In Riyadh, Saudi Arabia, the implementation of the metro system is expected to significantly impact the city\u2019s transportation dynamics. This study uses Call Detail Records (CDRs) to analyze human mobility patterns and predict metro usage in 2024. This study also developed a methodology to categorize Traffic Analysis Zones (TAZs) and create metro zones, aiding in the visualization of the city\u2019s population distribution and expected flow around the upcoming metro stations. Demographic data, including information on females and non-Saudis, was incorporated to predict metro usage more accurately. This approach identified areas with higher anticipated metro demand for the metro and potential feeder bus routes to support transportation efficiency. The insights gained from this analysis contribute to optimizing the metro system and addressing the needs of target populations, such as women and non-Saudi residents. This study demonstrates how mobile phone data can enhance transport planning in emerging urban environments.<\/jats:p>","DOI":"10.1371\/journal.pone.0330246","type":"journal-article","created":{"date-parts":[[2025,9,16]],"date-time":"2025-09-16T17:22:51Z","timestamp":1758043371000},"page":"e0330246","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":1,"title":["Analysis of transportation patterns through call detail records (CDRs)"],"prefix":"10.1371","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8199-3176","authenticated-orcid":true,"given":"Sarah","family":"Alhumoud","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"340","published-online":{"date-parts":[[2025,9,16]]},"reference":[{"key":"pone.0330246.ref001","unstructured":"Amlot M. Saudi Crown Prince reveals plans for Riyadh to be top 10 largest city economy in world. 2021;28:2021."},{"key":"pone.0330246.ref002","unstructured":"Abdelrahman. \u2018King Abdulaziz Project for Riyadh Public Transport\u2019, \u0627\u0644\u0647\u064a\u0626\u0629 \u0627\u0644\u0645\u0644\u0643\u064a\u0629 \u0644\u0645\u062f\u064a\u0646\u0629 \u0627\u0644\u0631\u064a\u0627\u0636. [cited May 17 2025]. 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