BART slows rollout of new trains as it contends with more repairs than expected

Re:BART slows rollout of new trains as it contends with more... by spenrose on Sunday July 28, 2019 @12:24PM (#20548305)

Most of BART’s challenges stem from 180 software packages and 30 microprocessors that make up each Bombardier vehicle. Each is a complex symphony of systems that communicate over an Ethernet backbone. A bug in one line of code could shut the whole thing down, requiring a rigorous safety review process that may take months before engineers can reinstall the software."

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Re:BART slows rollout of new trains as it contends with more... by jgibson on Sunday July 28, 2019 @08:43PM (#20550662)

Not that this makes the Bombardier problem trivial, but that seems fairly simple compared to most cars on the road today, which have over 100 micros. Software can be done well in complicated systems if you have the expertise, design, time and money to get it right.

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Re:BART slows rollout of new trains as it contends with more... by wiseleo on Monday July 29, 2019 @01:22AM (#20551712)

Makes you ask just one question: why? Why is the architecture not controlled by a redundant master system and a bunch of microcontrollers that act as glorified relays.

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Re:BART slows rollout of new trains as it contends with more... by fnord77 on Sunday July 28, 2019 @02:11PM (#20548941)

let me guess... $11/hour software engineers

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Re:BART slows rollout of new trains as it contends with more... by vonmoltke on Sunday July 28, 2019 @02:05PM (#20548911)

That may explain why New Jersey Transit's Bombardier cars are so temperamental.

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