I believe that the article is about this RFP for “Contract No. SFMTA-2022-40 FTA” to upgrade the Communications-Based Train Control System (CBTC) or Advanced Train Control System (ATCS). The resolution to create the RFP for the supplier was approved 2023-01-17 (https://www.sfmta.com/reports/1-17-23-mtab-item-14-communica...), and a $36M resolution to create an RFP for a consultant was approved 2023-11-07 (https://www.sfmta.com/reports/11-7-23-mtab-item-11-train-con...). I’m not sure where the actual RFPs are pubished though.