Description: This data represents the San Francisco Bay Trail. During the BTGCIP project, significant updates were made to segmentation and alignments, resulting in updated data. The alignments represented here correspond to the ‘aggregated’ BTGCIP data product where subsegments were used to produce more accurate cost estimates. These data are updated periodically by Alta or MTC staff to update attributes, segments status or alignment according to the Bay Trail Data Governance memo and accompanying data dictionary.Note: Segment 4032 is in the dataset twice intentionally. This was done at MTC staff direction, and the intent is to ensure that the project comes as part of both Alameda and San Mateo County project lists. When a spatial join is performed, this duplicates segment 4032, resulting in 4 rather than 2 records and a manual deletion is required.