The San Francisco Municipal Transportation Authority (SFMTA) is responsible for operating the Muni Metro, the city's urban rail system, and has been using 5¼-inch floppy disks in its Automatic Train Control System (ATCS) since 1998.
These floppy disks have now exceeded their useful lifespan, and SFMTA plans to upgrade the system by 2030. This transition is expected to last about ten years, with full implementation slated for 2029 or 2030, taking into account possible delays due to the COVID-19 pandemic. The primary goal is to create a unified train control system.
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Although the transition from floppy disks is a challenge, SFMTA plans to retain existing staff, provide training in new technologies, and hire more skilled workers to support the new system. Although the current system is still operational, moving away from floppy disks is critical to avoid increased risk of degradation and to reduce maintenance costs.
The SFMTA is undertaking a critical upgrade to its Advanced Train Control System (ATCS) to monitor and improve the operation of trains in the city. This upgrade seeks to radically transform the system by incorporating the latest technologies in computing and communications infrastructure. However, financial constraints are a significant obstacle, jeopardizing the planned implementation time of the project.
A major problem concerns the fragile loop cable of the system, which creates obstacles to effective maintenance. This situation highlights the urgent need to implement more modern solutions, such as the use of fiber optics or Wi-Fi, in order to improve the control and management of the system.
Despite expectations for government subsidies, the SFMTA finds itself in a position where it must also rely on its own resources to finance its project. The delay in upgrading its technology, however, risks falling behind other companies that have already implemented more modern technologies.
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Overall, the upgrade is a critical step for the SFMTA as it seeks to improve subway operations and meet modern transportation demands. However, budget challenges and the need to convert to more modern technologies require careful management and funding.
Source: arstechnica
