<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>gpapilion</author><text>I always heard it was an attempt to keep anyone using the rail for carrying cargo or other comercial traffic. They had concerns folks would sabotage their growth in order to resell the lines later.</text><parent_chain><item><author>carlivar</author><text>Was it necessary to do that? A stability problem elsewhere?</text></item><item><author>djbusby</author><text>It also makes the trains stable; wide stance.</text></item><item><author>carlivar</author><text>I&amp;#x27;m surprised the article didn&amp;#x27;t mention that BART is the only train in North America on the uncommon 5&amp;#x27;6&amp;quot; gauge. This is another factor making parts and equipment more difficult to source.</text></item></parent_chain></comment><story><title>How mechanics keep 50-year-old BART trains running: Windows 98, eBay, and scraps</title><url>https://www.mercurynews.com/2022/09/17/how-clever-mechanics-keep-50-year-old-bart-trains-running-windows-98-ebay-and-scraps/</url></story>
<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>potatochup</author><text>It was originally designed that way to cope with high winds across the Golden Gate Bridge (even though those plans got scrapped)</text><parent_chain><item><author>carlivar</author><text>Was it necessary to do that? A stability problem elsewhere?</text></item><item><author>djbusby</author><text>It also makes the trains stable; wide stance.</text></item><item><author>carlivar</author><text>I&amp;#x27;m surprised the article didn&amp;#x27;t mention that BART is the only train in North America on the uncommon 5&amp;#x27;6&amp;quot; gauge. This is another factor making parts and equipment more difficult to source.</text></item></parent_chain></comment><story><title>How mechanics keep 50-year-old BART trains running: Windows 98, eBay, and scraps</title><url>https://www.mercurynews.com/2022/09/17/how-clever-mechanics-keep-50-year-old-bart-trains-running-windows-98-ebay-and-scraps/</url></story>